Canon EF Lens Work III - The Eyes of EOS [Sept

The EF Lens Concept

1

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Approaching the human eye

How far can an SLR lens actually succeed in duplicating the







































Beyond human perspective

Why does that world we glimpse through the eye of an SLR lens







































Taking up the challenge of Canon lenses

Already more than half a century has passed since Canon developed







































EF LENS WORK III

The Eyes of EOS

September 2006, Eighth edition Publisher and Planning

Canon Inc. Lens Products Group

Nikko Graphic Arts Co., Ltd. ThanksfortheCooperationof: Brasserie Le Solférino/Restaurant de la

Maison Fouraise, Chatou/ Hippodrome de Marseille Borély/Cyrille Varet Créations, Paris/Jean

©Canon Inc. 2003 Products and specifications are subject to change without notice. The photographs in this book are the property of Canon Inc., or used with the permission of the photographer.









































Canon’s Challenges



















































































The Challenge of Technology The Birth of the Canon Camera

Canon’s roots lie in Kwanon him. Kwanon, the Buddhist Goddess of Mercy, was chosen as theHe said, “Why do you have to come all the way to

In 1933, the Precision Engineering Research Laboratory (later

A magazine ad for KWANON

The KWANON logo

In the 1930s, the two best 35mm focal plane shutter cameras

At that time, the starting salary of a college graduate in a The Kwanon name itself originates in the Buddhist Goddess

















































































The Challenge of Technology The challenge of building a lens with staying power

Changing the way people think about lenses: the new DO lens optical e A challenge by Canon’s technical team to the future of optical technology Meanwhile, the production team was working in tandem with The ultra telephoto EF 400mm f/4 DO IS USM lens turns the

In the mid 1990s, some of the young optical engineers at

However, the single-layered diffractive optical element which

Canon has in the past spared no effort in developing advanced



















































































The Challenge of Technology The ultimate lens – on the shoulders of man

Grinding on the order of nuclear particles. The craftsman’s skill delivers high-performance EF lenses. thewith grind of the lens surface is judged by looking at the colour EF lenses boast ultra-high resolution and picture quality

These remarkable engineers grind and polish lenses in

The prototype standard is actually a special lens which











































L Lenses Where Dreams Are Crystal Clear. The bright red line engraved on the lens barrel. And an L for “luxury.”

The Challenge of Technology The L Series – the fruit of lens technology









































The Never Ending Challenge – The History of Cano











































The Never Ending Challenge - The History of Canon Lenses

The history of Canon Lenses has undergone several

1961

Let us present to you some of our lenses which have made their mark in the history of lens development.

Canon 50mm f/0.95

In 1961 the 50mm f/0.95 went on sale, boasting the largest aperture of

1946 1964

Serenar 50mm f/3.5! Canon first began working on lenses not long after the end of WWII.

FL 19mm f/3.5

This super wide-angle 19mm lens boasted the largest angle of view of

1951











































1971

1975

FD 55mm f/1.2 AL 1971 saw the birth of the F-1, a real system SLR camera with

FD 400mm f/4.5 SSC

Since conventional telephoto lenses required the entire lens to extend

1982 1973













































The Never Ending Challenge - The History of Canon Lenses 1995

EF 75-300mm f/4-5.6 IS USM

2001

EF 400mm f/4 DO IS USM

This was the first interchangeable telephoto lens for SLRs equipped The EF 400mm f/4 DO IS USM is a super telephoto lens which

* Based on a shutter speed of “1/focal length” seconds, said to be the limit for hand-

held photography without image stabilization.













































































































































































































































































EF 15mm Ultra wide-angle lenses













































































































































EF 24mm Wide-angle lenses

















































EF 28mm

















































EF 35mm

















































EF 50mm

















































EF 85mm

















































EF 100mm

















































photographer in a straight, unadorned manner. The intention advantage of the f/2 brightness, and for portrait photography that f/4. Operational ease is improved by the inclusion of full-time Lens construction: 10 elements in 8 groups Diagonal angle of view: 18° Focus adjustment: Ring-type USM, rear focusing system, full-time manual focus behind the photograph is easily seen by the photographer’s uses the beautiful shading only possible with a large aperture lens manual focusing which can be used in AF mode, and non-rotating Closest focusing distance: 0.9 m/ 3 ft., 0.19 x magnification Filter size: 72 mm selection of what to include in the composition and how toand the nearness of the closest focusing distance (0.9m/3ft.). The filter and hood mounts. Max. diameter x length, weight: ø 82.5 x 112 mm, 750 g/ 3.2” x 4.4”, 1.7 lbs. include it, incorporating the background or emphasising one use of part two UD elements effectively compensates for secondary of the subject. The various effects of different telephoto lenses spectrum are and ensures sharp image quality. Light mechanical parts contained in the 135mm lens, making it relatively easy to master. make this the lightest lens in its class at 750g/26.5oz. A ring-type

















































you can cut out all the unnecessary detail, and at the same time rough spherical in soft surfaces focus aberration, function which to disperse which achieve normally the very light soft decreases entering imagesthe sharpness by lens harnessing (the in a lens which is for photographs with normal sharpness. The softnessLens of construction: 7 elements in 6 groups Diagonal angle of view: 18° Focus adjustment: Rear focusing system with AFD get the unforced expression you are looking for, thanks to the photographic and the effect can cause of spherical light), “seeping,” and aberration. the forresulting its softening There photograph are effect. two Unlike levels looks of like soft softness afilters, pale levels 1 and 2 can be further controlled by careful selection ofClosest the focusing distance: 1.3 m/ 4.3 ft., 0.12 x magnification Filter size: 52 mm distance between the camera and the subject. These characteristics mistimage the has enveloped performance the of scene. soft focus lenses involves creating a aperture, making it possible to achieve very precise levels of Max. diameter x length, weight: ø 69.2 x 98.4 mm, 390 g/ 2.7” x 3.9”, 13.8 oz. make the 135mm lens, along with medium telephoto lenses, unique very and beautiful world which veils the subject in a soft fuzzysoftness. Image quality with the soft focus effect is ideal for popular for portrait photography. They are also used for landscape flare, while nevertheless maintaining the subject in sharp focus.flattering portraits and pictorial scenes, with the subject in focus photography, taking advantage of the close-up effect created The byflare is controlled to round out the image. Soft focus lenses but softened with an appropriate degree of flare. Not only can the

















































construction: 9 elements in 7 groups Diagonal angle of view: 12° field becomes, becomes very narrow makingand it impossible compression to extend of perspective the focalbecomes range lensmobility. for is to eliminate Two UD the lenses background thoroughly by blurring eliminate it out secondary of detachable tripod collar, which provides a stable support andLens can Focus adjustment: Ring-type USM, rear focusing system, full-time manual focus more emphasised, beyond a very narrow making area for at maximum higher tension, aperture, more which powerful in recognition spectrum. turn The and new focusing rear focus only on design that which point you reduces are interested the overall in. be switched smoothly from vertical to horizontal positions and Closest focusing distance: 1.5 m/ 4.9 ft., 0.16 x magnification Filter size: 72 mm images. puts everything Besidesin sports frontphotography, of and behindwhere that area thisout lensofisfocus. ideal weight for One of the moving lens elements and improves focusing vice-versa. Max. diameter x length, weight: ø 83.2 x 136.2 mm, 765 g/ 3.3” x 5.4”, 1.7 lbs. bringing out the power in subjects which are often movingprecision very also compensates for aberrations. The lens boasts rapidly, it is also effective for the type of fashion portraiture excellent which sharp, clear imaging performance at all focusing eliminates the background almost completely by accentuating distances. the The quick and quiet AF which uses a ring-type USM

















































natural eye human portraits makes taken for photographs from a distance which so as bring not to a strongly intrude on element the and two UD lens elements are used to thoroughly compressed model’s frame perspective of mind with tothe thecamera, viewer –and andslightly the 300mm magical iseliminate no secondary spectrum. High picture quality with high exception,offully close-ups flowers endowed whichwith result these in riotous characteristics, or subduedbut splashes also resolution of and high contrast is achieved. The world’s fastest *1 capabledepending colour, of handlingon fast-moving how the blur subjects effectthanks is used. to its lightweight, autofocusing has been achieved by employing a ring-type USM compact design. and improving the drive algorithm. Furthermore, equipping the lens with an image stabilizing mechanism that compensates for

Lens construction: 15 17 elements in 11 13 groups (protective glass included) and drop-in filter included) lens is characterised by outstanding mobility thanks to the image Diagonal angle of view: 8° 15’ stabilizing mechanism. In IS mode, the photographer has twoFocus adjustment: Ring-type USM, rear innerfocusing focusingsystem, system,full-time full-timemanual manualfocus focus options: mode 1, which is good for still shots, and mode 2, for Closest focusing distance: 1.5 2.5 m/ 4.9 8.2 ft., 0.24 0.13 x magnification Filter size: 77 52 mm rear drop in Max. weight: ø 128 x 252 mm, 2,550 g/ 5” 9.9”, 5.6 lbs. Max. diameter diameterx xlength, length, weight: ø 90 x 221 mm, 1,190 g/ x 3.5” x 8.7”, 2.6 lbs. many shots of moving objects. The optics includes two UD glass elements to thoroughly eliminate secondary spectrum. With a closest focusing distance of 1.5m/4.9ft, you can get in as close to

















































elementsinin613 groups groupsDiagonal (protective angle glass of and view: drop-in 6° 10’filter included) international sporting events such as the Olympics. Theseperformance, super plus Image Stabilization effective over two shutter an extremely light and compact design ideal for photographers Lens construction: 717elements Diagonal Focus adjustment: angle of view: Ring-type 6° 10’ USM, rear focusing system, full-time manual focus telephoto lenses deliver shots which are both photogenic speeds. and haveThe image stabilizing mechanism used on IS lenses requiring high mobility and portability. The optical system Focus adjustment: Closest focusing distance: Ring-type 3.5USM, m/ 11.5 inner ft.,focusing 0.12 x magnification system, full-time Filter manual size:focus 77 mm strong visual impact, such as a close-up of the focused provides high-speed correction control whenever vertical or incorporates one element made of Super UD glass and one Closest Max. diameter focusing x length, distance: weight: 3 m/ 9.8 ø 90 ft.,x 0.15 256.5 x mm, magnification 1,250 g/ 3.5” Filter x 10.1”, size: 2.8 52 mm lbs. rear drop in concentration of a runner’s expression on the starting line, horizontal or just movement is detected, allowing for a greater range of element made of standard UD glass, thus effectively correcting Max. diameter x length, weight: ø 163 x 349 mm, 5,370 g/ 6.4” x 13.7”, 11.8 lbs. the right way to frame the colour and texture of a far-off hand-held photography. It provides reliable capabilities when colour aberration and delivering extremely sharp, high-contrast mountaintop. 400mm lenses have an even more powerful used for fashion photography and sports photography performed imaging performance. Other features that ensure convenient

















































Lens construction: 17 elements in 13 groups (protective glass and drop-in filter included) equipped with the new DOwhich optical element that delivers compact grow in size and weight, creates problems in terms compact of and lighter. The latest solution is “diffractive optical keeping size and weight down to manageable levels. By Diagonal angle of view: 6° 10’ size, light weight, and high picture quality. to use them forelements” holding them, making it almost impossible handwhich allow interchangeable lenses for SLR camerascombining to DO lens elements with normal refraction elements, Focus adjustment: Ring-type USM, inner focusing system, full-time manual focus held photography as they cannot be held still enough. Thisbe causes designed more compactly, lighter, and with high picture colour aberration is corrected to levels even higher than is Closest focusing distance: 3.5 m/ 11.5 ft., 0.12 x magnification Filter size: 52 mm rear drop-in type blurry shots which ruin the impact and visual effect that the quality by applying optical characteristics which are unavailable possible with fluorite elements. This lens also has the fastest Max. diameter x length, weight: ø 128 x 232.7 mm, 1,940 g/ 5” x 9.4”, 4.3 lbs. photographer was going after, and is a particular handicap infor normal refraction lens elements. At the same time, however, ifautofocusing in the world*1. Equipped with an Image Stabilizing field sports which require much hand-held photography. Blurry the light entering the lens is natural (white) light, part of that light mechanism and a thoroughgoing dust-proof and drip-proof*2 shots are the enemy in this type of photography, so demand becomes is diffracted and appears as flares, which has made suchconstruction, it can be used in even the harshest weather high for super telephoto lenses that are light but still deliver characteristics high difficult to apply to photographic lenses. Thanksconditions. to It also comes with an AF Stop function for outstanding picture quality. a newly developed original multi-layered construction, DO lenses operability and mobility. The green line on the lens barrel is a have solved the problem of how to make super telephoto lenses symbol of the innovative technologies used to design and produce smaller and lighter, without compromising picture quality. Canon lenses, and is shared by the Canon FL-F 300mm f/5.6 which appeared in 1969, the first SLR lens in the world to use fluorite lens elements.

















































Get right up into the powerful action of the teams as they interact common occurrence attraction of an original when Image trying Stabilizing to capture mechanism the action of and a scene. a previously impossible to attain with such high contrast and Lens construction: 17 elements in 13 groups (protective glass and drop-in filter included) Diagonal angle of view: 5° on a soccer or rugby field. With the unique perspective bright Many professional large aperture photographers of f/4. Its newly perform designed hand-held opticalphotography system sharpness. With a ring-type USM and an improved drive Focus adjustment: Ring-type USM, inner focusing system, full-time manual focus compressing effect provided by a 500mm super telephotoconsists depending lens, theof 17 on the elements scene,in but 13use groups, of a monopod including and one anfluorite image lens algorithm, its autofocus is the fastest in the world*1. The lens’s Closest focusing distance: 4.5 m/ 14.8 ft., 0.12 x magnification Filter size: 52 mm rear drop in Max. diameter x length, weight: ø 146 x 387 mm, 3,870 g/ 5.8” x 15.2”, 8.5 lbs. photographer can put the subject and the background on element stabilizing almost and mechanism two UD lens in such elements. situations These makes have it eliminated possible to take closest focusing distance has been reduced to only 4.5m/14.8ft., the same visual plane, creating a visual tension and impact extremely that sharp photographs, even with a visual impact that is and it is equipped with full-time mechanical manual focusing, are hard to imitate, and that make super telephoto lenses almost the surreal, using only 1/10 of the 50mm lens’s angle of view.focus preset, and an AF Stop function. The use of a magnesium pleasure they are. alloy for the lens barrel minimises weight and the lens offers superior dust-proof and drip-proof*2 performance. The large f/4 aperture permits the use of autofocus when using an extender. Image Stabilization is even more effective when combined with a unipod, making shooting even more accurate.

















































his racecar careens around a corner at 200mph and capture Stabilizing Stabilizer the system mechanism, and has allayou large need aperture is a monopod of f/4, providing for total the 5.5m/18ft. In addition to using a full-time mechanical manual Lens construction: 17 elements in 13 groups (protective glass and drop-in filter included) Diagonal angle of view: 4° 10’ tension on his face, or sneak up on a hungry lion in the jungle mobility. finest image performance in its class. It offers reliable capabilities focus and an AF stop function, the focus preset and other features Focus adjustment: Ring-type USM, inner focusing system, full-time manual focus and capture his subdued aggressiveness digitally or on film. when Forused to photograph wild animals or field sports. The opticalwere improved to make it easier to use. The use of a magnesium Closest focusing distance: 5.5 m/ 18 ft., 0.12 x magnification Filter size: 52 mm rear drop in Max. diameter x length, weight: ø 168 x 456 mm, 5,360 g/ 6.6” x 18”, 11.8 lbs. better or for worse, these acts are physically dangerous or system simplyincludes one fluorite lens element and two UD lens alloy for its principal parts has reduced its weight, making impossible, but with a super telephoto lens, the photograph elements is not that eliminate secondary spectrum, resulting in a level holding of and mobility better than ever. It offers superior dust-proof 2 impossible. A 600mm lens lets you capture all those dramatic image quality with high contrast previously impossible to attain. and drip-proof* performance for outstanding photography in the sports and wildlife moments with the visual impact of physical With its improved drive algorithm, its autofocus is the fastest in field. immediacy. The subtle movements of a subject moving far off in the distance can be brought in to fill the frame, with visual tension enhanced by the perspective compression that only a

















































elementsinin88groups groups Diagonal Diagonalangle angleofofview: view:46° 24° patterns created by nature. Catch the moment when a butterfly images, EF 50mm from f/2.5 close-up Compact photography Macro. It allows to infinity. photography With the largest with and close-up magnification up to life size (1:1). Optimising theLens construction: 912elements Focus adjustment: Front Ring-type group USM, linear inner extension focusing system system, with full-time AFD manual focus takes flight, flapping its lissome wings. For these situations, maximum magnifications what aperture fromof0.26 anyxautofocus to life-size macro (1:1).lens The– aperture f/2.5 – close-up drops optical power distribution reduces spherical aberration fluctuation Closest focusing distance: 0.23 0.31 m/ 0.8 1 ft.,ft., 1 0.5 x magnification x magnification Filter Filter size:size: 58 mm 52 mm you need most is a macro lens, which allows close-up shots one step, withbut shallow the autofocusing depth of fieldisand very general fast, making portraits forwith easy during close-up photography, delivering constant high picture Max. diameter x length, weight: ø 67.6 78.6 x 63 118.6 mm, mm, 280580 g/ 2.7” g/ 3.1” x 2.5”, x 4.7”, 9.91.3 oz. lbs. photography at 1/2 magnification or life-size magnification, pleasing shooting and background in close-up situations blur are possible. where focusing tends to be quality over all focusing distances. The inner focusing system which is optically designed to have characteristics ideal for difficult. image makes the working distance (the distance from the lens to the performance under these kinds of circumstances. With even subject) 149mm during life-size photography – twice the distance colour reproduction and sharpness throughout the frame, these of the 50mm macro lens. Convenient operability is achieved with lenses are ideal for scientific and academic uses as well. the easy full-time manual focus ideal for subtle adjustments of the focus position (a task in macro photography) and the non-rotating front lens element. If the optional ring-type tripod mount B (B) (with an adapter for the EF 100mm f/2.8 Macro USM) is used, switching between vertical and horizontal compositions without affecting the optical axis is a simple matter.

















































Lens construction: 14 elements in 12 groups Diagonal angle of view: 13° 40’ purposes, so you have to choose the macro lens best for the shallower 1 x. It is ideal thefor depth photographing of field becomes, insects which and small makes animals, camerawhere spectrum. Employing an internal floating construction ensures Focus adjustment: Ring-type USM, inner focusing system, full-time manual focus situation and use it to its fullest. One of the factors that needs movement a long to working a problem. distance One is desirable. option is toThe usefocusing a 50mm range with itscan widesharp delineation at all subject distances. Since the length of the Closest focusing distance: 0.48 m/ 1.6 ft., 1 x magnification Filter size: 72 mm be considered is the relationship between photographic easily range be of use switched for snapshots betweenand 0.48m/1.6ft. other general to infinity photographic and 1.5m/4.9ft. lens does not change when focusing, there is no need to worryMax. diameter x length, weight: ø 82.5 x 186.6 mm, 1,090 g/ 3.3” x 7.4”, 38.5 oz. magnification and working distance. Working distance is purposes, the a 100mm for portraits, and a 180mm for photographyabout the lens coming in contact with the subject. The ring-type distance measured from the tip of the lens to the subject. For of animals and other subjects which are unapproachable. USM delivers quiet autofocusing. Full-time manual focus is also example, when you want to take a life-size photograph of a available. Maximum magnification can be raised to either 1.4x or subject, the working distance for a 100mm medium telephoto lens 2x by using Extender EF 1.4xII or 2xII . is double that of a 50mm macro lens. While a 50mm macro lens is good for getting very close to the subject, if you are taking photographs of insects and small animals, which are not so easy

















































Mark II, EOS-1D (laser matte screen must bethe replaced). Forlabel other EOS models, exposure Lens construction: 10 elements in 8 groups Diagonal angle of view: 18° 40’ at 1 x magnification are invisible to the naked eye, such as when using a telephoto focusing to 5x magnification. rails when photographing A floating system makes usingitthree easierlens to capture groups has the use the Macro Ring Lite MR-14EX and the Macro Twin Lite MTfilled with sparkling water, and bottle seen through the compensation is required. The actual aperture rises as the magnification goes up, so we Focus adjustment: Manual focus, front group linear extension lens or a macro lens. Getting right up close to a subject makes subject been adopted and make to deliver minorhigh adjustments variable to magnification the focus and in the macro 24EX. The lens comes with a removable tripod mount which bubbles created an interesting effect. The world of macrophoto recommend using exposure compensation or the Macro Ring Lite MR-14EX or the MacroClosest Twin focusing distance: 0.24 m/ 0.8 ft., 5 x magnification Filter size: 58 mm Lite MT-24EX. you feel like you’ve become a small animal yourself. This feeling magnification. region. It effectively corrects the aberration fluctuation which allows smooth switching between vertical and horizontal lenses can open up beautiful and surprising vistas that are Max. diameter x length, weight: ø 81 x 98 mm, 710 g/ 3.2” x 3.9”, 1.6 lbs. of the unordinary often allows you to discover new ways of accompanies changes in magnification. With a UD lens elementphotography and offers solid support. otherwise invisible to the human eye. looking at subjects which you would normally pass over. Even as the the second element, secondary spectrum, a problem during smallest movements of a bug on a rose petal or the delicate high magnification, is minimised, guaranteeing outstanding pattern on the surface of a ceramic plate can bring gasps of imaging performance. The lens is equipped with an EMD delight. Macrophoto lens are designed especially for this (electromagnetic type of diaphragm) to deliver AE photography* Subtle high-magnification photography. These lens are excellentadjustments for to magnification are possible using the wide ring. A finding new forms of expression through macrophotography. light-blocking line is incorporated into the front of the lens to Since they are specially designed, they reduce aberration fluctuation and distortion while providing good operability and















































and large-format cameras, available with mobile EOS photograph optical axis to when correct theydistortion. arenow photographed “Tilting” with controls a wide-angle the area upwards, in lens, which causes the wall surface that had been tapered, to the expressive range of any EOS camera, allowing them to do Diagonal angle of view: 84° Image circle diameter: 58.6 mm Tilt/shift amount: ±8°/±11 mm Angle of revolution: ±90°. cameras. focus and shifting by changing corrects thethis. normally The camera perpendicular is set so that relationship its focal rise plane up vertically, keeping the shape of the building rectangular.what used to be possible only with medium and large-format Focus adjustment: Manual focus, overall linear extension system between the lens’s optical axis and the camera’s focal plane. Alternatively, It it is possible to emphasise the tapering of the cameras – correcting perspective distortion and controlling Closest focusing distance: 0.3 m/ 1 ft., 0.14 x magnification Filter size: 72 mm used to be the case that a large-format camera was needed building. to TS-E lenses can revolve within a range of ±90°, so focusing range. This means you will have all the mobility of a Max. diameter x length, weight: ø 78 x 86.7 mm, 570 g/ 3.1” x 3.4”, 1.3 lbs. perform tilt/shift photography. However, TS-E lenses nowhorizontal add shift is also possible. Using this technique, you can 35mm or digital SLR, as well as automatic aperture control, which both tilting and shifting functions to compact EOS cameras, shoot which panoramas by dividing a landscape scene into several shots allows AE photography with AEB (Auto Exposure Bracketing). It can be taken anywhere anytime. Professional-level photography horizontally, and connecting them at the edges. Shifting is also compensates for astigmatic and other aberrations thanks to a just got a bit easier. useful for preventing a reflection of the camera or the ground and polished aspherical lens element. A floating photographer from appearing in pictures of show windows or mechanism incorporated into the design preserves high image other reflective surfaces. Indeed, the number of uses is only quality throughout the focusing range from 0.3m/1ft. to infinity, limited by the photographer’s imagination. The shift range on all while simultaneously reducing the size and weight of the lens. TS-E lenses is ±11mm, while tilting is adjustable to ±8°. This lens is particularly useful when taking photographs of building interiors and exteriors, landscape shots, and other wideangle scenes.















































Lens construction: 10 elements in 9 groups Diagonal angle of view: 51° important photography photographing than are shifting. buildings sure and changing other the structures the angle is of with the on the optical acamera shift tripod axis cuisine without a making tripod. By To get all camera the food inleveled focus, the Image circle diameter: 58.6 mm Tilt/shift amount: ±8°/±11 mm relative and function, checking this thethe 45mm camera’s exact standard composition focal plane, TS-E lens it ofisthe possible isscene just the through toit,answer. take athe ItsAngle of revolution: 0±90° had to betoplaced at a steep angle diagonally above tilting the photograph viewfinder. floating mechanism Cameras withthe everything combines with 100% infar with focus viewfinder its from rear near coverage focusing to far,system such as in,as for to the lens to get both near and sections into focus. Focus adjustment: Manual focus with a rear focusing system Closest instance, EOS-1 ensure series sharp, a photograph and/or stable100% imaging of aLCD line performance monitor of pillarscoverage receding at all shooting such awayas from EOS the focusing distance: 0.4 m/ 1.3 ft., 0.16 x magnification Filter size: 72 mm Max. diameter x length, weight: ø 81 x 90.1 mm, 645 g/ 3.2” x 3.5”, 1.4 lbs. cameraSLRs digital distances. in an And make old since European this the easier. filter convent. On mount cameras With doesTS-E with not rotate lenses, interchangeable during it is possible to focusing focusing, screens, using tilt the a circular a optical grid screen axis polarizer ±8°. should Tilting or graduated be used is useful to facilitate ND when filter you is no want to achieve accurate problem. alignment a pan-focus of horizontal effectand with vertical a shallow lines aperture in the scene. setting and a fast shutter speed, or, on the contrary, when you want to blur the background. Reversing the tilt drastically reduces the area of the picture that remains in focus, so if for example you want nothing but a person’s face in focus in a photograph, tilting creates a unique effect.















































controlling the lens’s optical axis. In order to get the best out are their ofideal built-in for delivering EMD (electromagnetic effective tilt/shift diaphragm). photography Although with only a floating Gauss-type system achieves outstanding imaging in aoptical flower vase placed on top of a blue piece of glass, Lens construction: 6 elements in 5 groups Diagonal angle of view: 27° Image circle diameter: 58.6 mm Tilt/shift amount: ±8°/±11 mm these lenses, however, you need to understand more than just natural focusing manual perspective. is available, only the TS-E series can offer tilt caressed performance and natural-looking blur. is possible by the natural light coming inFocusing through the window.down In Angle of revolution: 0±90° making such corrections and adjustments – you have to keep and a shift photography with AE. This is the first successful attempt to an extremely shooting distance 0.5m/1.6ft., enabling order to captureclose the depth as well as theof orchids all lined up inFocus a adjustment: Manual focus, overall linear extension system close eye on the subject’s situation and the purpose of the shot to incorporate in automatic aperture control and AE photography row, effective close-up photography. maximum the photographer revolved A the lens 45° magnification and tilted the of Closest focusing distance: 0.5 m/ 1.6 ft., 0.29 x magnification Filter size: 58 mm order to get a solid understanding of what the best focus distance with AEB is. using a fully electronic mount, and advanced imaging focusing 0.29x is available. Use of reverse tilt to adjust the positioningMax. of diameter x length, weight: ø 73.6 x 88 mm, 565 g/ 2.9” x 3.5”, 1.2 lbs. surface diagonally. The best lens for photography in places where sufficient distance performance with easy exposure control is thereby guaranteed.depth of field allows the photographer to achieve unique and between the camera and the object is not available, such asFurthermore, although TS-E lenses are manufactured with their innovative photography unattainable with normal lenses even at outside tall buildings or in small rooms, is the wide-angle tilting and shifting mechanisms offset by 90°, modifications to large apertures. TS-E 24mm. If you want a more natural perspective, the allow shifting and tilting in parallel are available at Canon factory TS-E 45mm is the lens for you. Besides being able to be used service as a stations. regular medium telephoto lens, the TS-E 90mm can also be used as a macro lens. With a maximum magnification of 0.29x, plenty of working distance can be attained, making photographs of food, to take one example, very easy to compose effectively. For photographs of merchandise that require an accurate















































f/4L 600mm IS lens’ USM, f/4L EF IS 600mm USM, EF f/4L 70-200mm IS USM, EF f/4L 70-200mm ISsubject USM or f/4L EFunder IS 70-200mm USM camera f/4L bodies USM, camera which bodies which stabilization offer autofocus are the as EOS-1V/HS, long during as theactual center EOS-1N/DP/HS/RS, measuring EOS-3, is used EOS are7s/30V/33 the EOSofEF increase can the make the more capabilities visual efficient impact for use of photography of the your telephoto by getting lens the -harshest in especially even closer byoffer even 1.4 a image greater times. Not visual only impact does the super-telephoto F-stoppoint value drop photograp only on 55/50/50E, Mark II, EOS-1Ds, EOS 3000N/XSN, EOS-1D Mark EOS 3000/88, II N, EOS-1D EOS Mark 5000/888, II and EOS EOS-1D. IX E/IX, EOS IX 50/Lite/7, EOS-1Ds Mark II, EOS-1Ds, EOS-1D Mark II N, EOS-1D Mark II, EOS-1D, EOS 5D, E to20Da, super-telephoto conditions it, or when if combined you lens simply without with want EOS to sacrificing reduce cameras the compactness or number EF lenses of telephoto with or step has the the when same the weather-resistant extender is used, but and autofocusing flare reducing is design also as t EOS 10D, EOS D60, EOS D30, EOS D6000, EOS D2000, EOS-DCS 1 and EOS-DCS 3. lensesdust-proof portability. same you carry For instance, around. and drip-proof Not if you only have specifications. doathey 300mm increase lens, the youtelephoto can use maintained EF 1.4 it xII. Because with most it reduces lenses, which aberration makesfluctuation, the extender it does effect, for 420mm filling orthe 600mm framesuper-telephoto with the sun, say, shots when simply taking byshots adding extremely degrade of the the useful picture when quality you need or performance to maintainof brightness the master orlens sunrises and Extender EF 1.4 sunsets, xII or but the they EF 2x are II. also Combining ideal for a close-up 70-200mm zoom mobility. itself. The The effective interiorF-stop of the value lens barrel dropshas two been steps. treated photography, lens with the Extender taking advantage EF 2xII lets of the youfact putthat together the closest a lens focusing system thoroughly against reflections, employing a flare-reducing hig distance that can efficiently does not change. deliver zooming up to 400mm, while keeping image quality design. The Extender EF 1.4xII features dust-pr the size manageable. Depending on the camera, autofocusing andwith drip-proof construction. the center AF point is possible with effective maximum apertures as small as f/8. And if you are using an IS lens with the image stabilizing function, hand-held photography is no problem, since the function is effective for two shutter speeds*1 less than 1/focal length seconds.





































Pavie, artisan Paris/Participation de la Mairie de Paris/JeanProduction and Editorial Canon Inc.luthier, Lens Products Group Michel OTHONIEL, sculpteur Printer









































































construction: 14 elements in 10 groups Diagonal angle of view: 108° 10’ - 63° ultimate and the perspective, photographic which expression, becomeyou more need profound to havethe anmore the most you powerful effect of wide-angle photography, is strongertypes at of aspherical lens elements (ground, replica, glass mold),Lens two Focus adjustment: Ring-type USM, inner focusing system, full-time manual focus learn about them. experienced eye, but Super the wide-angle process of accumulating zooms give you that theexperience pleasure shorter focusing distances, close objects appear closer and distant UD lens elements are used to correct a variety of aberrations and Closest focusing distance: 0.28 m/ 0.9 ft., 0.22 x magnification of fun is finding in and just ofthe itself, right because framing the while deeper dynamically you dig, the adjusting more objects the appear more distant. One example is photographing a vast achieve sharp, high-contrast pictures of unrivaled quality. Use Zoom of asystem: Rotation type Filter size: 77 mm Max. diameter x length, weight: ø 83.5 x 103 mm, 600 g/ 3.3” x 4.1”, 1.3 lbs. perspective. Even with digital cameras, which often havelandscape: a screen you might, for instance, introduce some clouds behind circular aperture diaphragm brings out the beauty in the blurred size even smaller than that of 35mm cameras, it is possible the tomain subject to give it some depth, making the sky seem likeareas. Uncompromising dust-proof and drip-proof* design enjoy photography over a wide range of angles and focusing it just goes on forever, or place a solitary withered tree in the specifications have been incorporated. Magnification-type distances. composition to emphasise the loneliness of the spot. In chromatic aberrations, flare, and ghosting are also thoroughly portraiture, you can get two or three steps closer to the subject to controlled. So no matter whether you are using a regular film give some unity to the subject and the background, giving the camera or a digital camera, outstanding imaging performance is shot a documentary touch. virtually guaranteed.





































Lens construction: 12 elements in 9 11groups groups Diagonal Diagonalangle angleofofview: view:104°-57° 94°-63° 30’ makes it possible to capture not only landscapes but also narrow photographs even with digital SLR cameras which have a screen during lens which focusing, coversso the there most is popular no problem wide-angle when using focalcircular lengths. PL Focus adjustment: Ring-type USM, inner focusing system, full-time manual focus interiors as well as large groups of people – a truly versatilesize lens. smaller than 35mm, covering the range from a super wide- The filters large or other diameter filters, of and the front in combination element and with thethe inner EF 70-200mm zoom Closest focusing distance: 0.28 0.34 m/ 0.9 1.1 ft., 024 0.13xxmagnification magnification Zoom system: Rotating type In small interiors which do not allow you to get far enough away angle 17mm to a standard 40mm. Three aspherical lens elements f/4L IS USM you construction help can correct get the distortion right shot and almost otheranywhere aberrations. youSeveral go. Filter Zoom size: system: 77 mm Rotating Max. type diameter Filterxsize: length, 77mm weight: ø 83.5 x 96.8 mm, 475 g/ 3.3” x 3.8”, 1 lb. from the subject you can take advantage of the wide angle of which viewcome in two types deliver both a wide zoom range and flare-cut diaphragms are placed within each element group, Max. diameter x length, weight: ø 83.5 x 68.9mm, 340 g/ 3.3” x 2.7”, 12 oz. to not only photograph large groups of people but also capture highthe image quality, while the super UD lens elements provide providing outstanding image performance throughout the surroundings. For snapshots of moving objects you can follow excellent the correction of the magnification-type chromatic focusing range. In addition to the quiet, rapid autofocus, a fullsubject at the shortest focal length and then zoom in to frame aberration. it Flaring and ghosting have been minimised to make time manual focus, a non-rotating front lens group, and a broad when the moment is just right. Of course, you can also bring possible out a optical characteristics on par with the EF 16-35mm f/2.8L zoom ring work together to make this lens very easy to use. A contrast between the subject and its surroundings by usingUSM. the The circular aperture diaphragm which brings out a petal hood which blocks out stray light is also available. short focal length effect to the fullest. In portraiture this effect nuanced can blur and the achievement of a closest focusing distance be used to bring out a sense of presence by getting in close of to 0.28m the over the whole range of the zoom, not only help you in subject. The possibilities are endless. One thing you shouldcomposition, watch but the quiet, high-speed autofocus and the out for is taking photographs at the widest angle which wind outstanding up dust-proof and drip-proof* construction make this “subject-less” and lacking a center of attention. You should avoid over-relying on the wideness of the angle of view, instead keeping





































15 elements in 13 12 groups Diagonal angle of view: 84° - 34° 28° 30’ Use of standard lens, image focal especially length quality a multi-group and ofbeyond in 24mm. since its class, movable it to Itis medium ischoose so also easy zoom good telephoto, the to use and for EFfor wide-angle 24-70mm an shots aspherical is often off/2.8L the photography a budding lens family USM,Lens on construction: 16 Focus adjustment: Ring-type USM, rear innerfocusing focusingsystem, system,full-time full-timemanual manualfocus focus photographer’s vacation, but using element fordigital more deliver andcarefree SLR other sharp first cameras situations step lens picture into work which the quality you with have world may excellent throughout aencounter of screen lenses. image size the Centered insmaller everyday quality zoom range on than we life. a Closest focusing distance: 0.38 0.5 m/ m/1.6 1.3ft., ft.0.16 (Macro), x magnification 0.29 x magnification focal One recommend 35mm. as well handy length as Use a way lightweight, of of the two 50mm, of EF using types 24-85mm which the of compact aspherical lens isf/3.5-4.5 closest isdesign. to take lens to USM the The in elements the because normal ring-type whole and perspective ofscene its USM a UD light Zoom system: Rotating type Filter size: 77 67 mm Max. diameter x length, weight: ø 83.2 73 x 69.5 x 123.5 mm, mm, 380950 g/ 2.9” g/ 3.3” x 2.7”, x 4.9”, 13.4 2.1 oz.lbs. of the with weight lens autofocus element the human and zoom drive compact corrects eye, set combines to the wide design. zoom the angle, magnification-type with region the then goes inner zoom from focusing inan on chromatic expansive any system particular aberration towide angleseen detail often deliver which that silent happens atcan wider andtake rapid angles, toin catch performance. a whole for your extremely scene attention. A tofull-time concentrating high Aspicture you manual getquality. aon feel focus one for particular the While that lens, lets onyou you’ll the spot make one learn – hand very small your employing much adjustments ownlike preferences the a no-compromise human to thein focus eye. terms without dust-proof of the different and switching drip-proof angles out of * construction, of autofocus view andmode perspectives on and the other the non-rotating athand eachthe focal quiet filter length, and mount fast and the changes autofocus, work together the in mechanical to the improve blur quality operability. full-time of background manual A petal-type focus, itemsand hood that the is are also broad out of focus. zoom available, ring That make great is one the for lens of keeping the easy advantages out to use, unwanted while of using the light circular a lens at wide like this, angles. because it isdelivers diaphragm very good a beautiful for expressing blur effect. exactly The what closest youfocusing see when you look is distance at0.38m, your subject. and the magnification is 0.29x, making the lens ideal for close-up photography.





































Lens construction: 18 elements in 13 groups Diagonal angle of view: 84° - 23° 20’ effect of a wide-angle lens to 105mm, which is suitable forwide-angle such as deserts, to 105mm jungles, medium-telephoto beaches, glaciers shooting. and mountainous In addition to mechanism is incorporated to offer camera-shake compensation Focus adjustment: Ring-type USM, inner focusing system, full-time manual focus medium zoom portraiture and landscape photography. This regions. achieving is a Inaaddition broad zoom to professional range, the optical news, sports systemand made documentary up of 18for approximately three shutter speed steps. Furthermore, the Closest focusing distance: 0.45 m/ 1.48 ft., 0.23 x magnification standard zoom lens able to handle a broad range of photographic photojournalism, elements in 13 groups it is also contains able to only beautifully environmentally-friendly portray a variety ofhighly dust-proof and drip-proof* structure enabling shooting insystem: Rotating type Filter size: 77 mm Zoom Max. diameter x length, weight: ø 83.5 x 107 mm, 670 g/ 3.3” x 4.2”, 1.5 lbs. expression including impressive wide-angle shots that emphasise subjects in lead-free glass. day-to-day The various life ortypes on holidays of aberration including arescenery well shots, harsh conditions, and full-time manual focusing make this a highperspective by approaching the subject so that it fills the frame, souvenir shotsusing compensated of theone family, super snap UDshots lens and in town, threeportraits aspherical andlenses performance lens able to meet the high demands of professionals standard photography with a similar definition to the human indoor (replica eye photography. and molded glass), and this enables high quality imagesand highly skilled amateurs. and medium telephoto shots that highlight the expressions befitting of L-series lenses. In addition, optimisation of lens people by adding a beautiful blur to the background. In addition positioning and coating minimises the flare and ghosting to to achieving the high image quality typical of L-series lenses, the lens incorporates an image stabilizing mechanism effective for counteracting the effects of camera shake by approximately three shutter speed steps, enabling users to pursue subjects without missing any photo opportunities. Moreover, it offers excellent durability and weather resistance due to a highly dust-proof and





































Lens construction: 10 elements in 8 groups Diagonal angle of view: 75° - 27° mechanism angle mobility cost. This to medium and 3xfor magnification framing. compatibility telephoto Zoomis zoom invery with onis the close the designed smile E-TTL to the ofIlike Iarange flash running thesystem. of EF the child 28- This Focus adjustment: Front group rotating extension system with micro motor human and 90mm allows then f/4-5.6 the eye, zoom camera which IIout USM, means to take capture featuring it lens can the distance flexibly an whole optical photograph information scene. system This that is the into what minimises subject account is Closest as focusing distance: 0.38 m/ 1.3 ft., 0.3 x magnification it is seen possible overall during length autoflash. if byyou thewith know eye.an It how is all-moving therefore to get the four-group good best for outall ofconstruction, sorts a lightweight, of an Zoom system: Rotating type Filter size: 58 mm Max. diameter x length, weight: ø 67 x 71.2 mm, 190 g/ 2.6” x 2.8”, 6.7 oz. photography, compact aspherical zoom lens from lens. used landscapes as the 9th and element, indoor and snapshots more. It to gives group pictures andcorrection outstanding natural shots. for aberration For example, fluctuations, when you are andtaking high a landscape picture quality photograph, over the not entire only zoom doesrange it capture with the a minimum vastness, ofbut you can lens elements. frame the The picture micromotor any way autofocus you want,isfocusing quiet and onfast. one particular spot, describing the surroundings by including them too, or just framing the momentary movement of the subject.





































Lens construction: 10 15 elements in 9 12groups groups Diagonal Diagonalangle angleofofview: view:75° 75°- -23° 23°20’ 20’ make a zoom lens so attractive. It lets you go back and forth compact length ofzoom a 28-90mm lens that class achieves zoom lens. high This picture standard qualityzoom over all achieves focal USM IIUSM. f/4-5.6 combine Theto aspherical give you the lens pleasure elementofprovides a very silent outstanding Focus adjustment: Inner Ring-type focusing USM,system inner focusing with micro system, USM@full-time manual focus motor between wide-angle and telephoto in the blink of an eye, seeing lengths. the lightest Covering weightain broad its class. range The from newly a wide-angle designed28mm optical tosystem a picture autofocusing quality mechanism throughout that theis focus veryrange, fast. The while circular the circular aperture Closest focusing distance: 0.48 0.5 m/ m/1.6 1.6ft.ft., (Macro), 0.19 x magnification 0.19 x magnification whether the scene calls for that particularly emphasised consists medium telephoto of 5 element 105mm, groups. theUse lensofdelivers an aspherical a closest lens focusing element aperture diaphragm diaphragm offers a beautiful deliversblur a beautiful effect as blur well effect. as a closest The closest Zoom system: Rotation type Filter size: 58 mm Max. diameter x length, weight: ø 67 72 x 68 75 mm, 210 375 g/ 2.6” 2.8” x 2.7”, 3”, 13.2 7.4oz. oz. perspective attained by a wide angle at 28mm or the morecompensates distance of 0.5m. for all The aberrations, autofocus employs attaining a ring-type beautifulUSM picture andquality focusing distance of 0.48m for letsphotography you get rightthat in your is very subject’s up-close face, compressed perspective offered by the telephoto end of the inner range focusing system, so it is as quiet as it is quick. It also has a and personal. the compact Thedesign non-rotating of the micro frontmotor lens element for the autofocus makes using at 105mm – both centered around the standard, unforcedfull-time effect ofmanual focusing mechanism that allows small changes to circular drive actuator, PL filters together and other with accessories the optimised easier RPM than and gear ever.ratio, 50mm. Its lightweight and compact body makes it a very mobile be made to the focus very quickly, without leaving autofocus give this lens a highly commendable cost-to-performance ratio as lens that can be used for all types of scenes, from close-ups mode. of the The wide zoom ring and non-rotating front lens element well as quiet and speedy autofocus. main subject, to expansive vistas of rolling landscapes - alloffer in one outstanding operability. lens.





































Lens construction: 16 elements in 12 groups Diagonal angle of view: 75° - 12° 18° finder, put spatial wide-angle side and perspective 135mm and between 200mm a subject on the telephoto and the background, side, Stabilizer along mechanism that lets you drop down two shutter speeds aspherical * lens in the 4th lens element and a glass-mold Focus adjustment: Inner Ring-type focusing USM,system inner focusing with micro system, USM full-time manual focus withdo and high other magnification things that telephoto between 5lenses x and 7 can x. This do, while is a workhorse at the same farther lens,than you would normally be able to use during hand-heldaspherical lens in the 14th element makes possible high picture Closest focusing distance: 0.45 0.5 m/ m/1.6 1.5ft.ft., (Macro), 0.28 x magnification 0.19 x magnification greatbringing time for traveling you the light, close-up and great capabilities for timesof when wide-angle you justlenses don’t photography. have for Despite the roughly 5x large magnification zoom,quality over the entire zoom range and a compact body. The twoZoom system: Rotation type Filter size: 72 mm the space taking photos to haul of flowers a bunchand of lenses other expressions all over creation. of mother This single nature’s the lens lens size itself is very compact, thanks to use of a compact group inner focusing system achieves a closest focusing distance Max. diameter x length, weight: ø 78.4 x 89.6 96.8 mm, 500 540 g/ 3.1” x 3.5”, 3.8”, 1.1 1.2 lbs. gives you beauty, allthree-in-one with the ability versatility to decide – wide-angle, the right framing standard, in the and flash EMD telephoto of an and a multi-group zoom system, which means this lens of 0.45m. The micro USM drive keeps the autofocus quick and capabilities, eye. The 28-135mm/200mm and with magnification can zoomyou from just a wide can’tangle beat.to a works well in fast-moving photographic situations. The optical quiet. Operability with accessories is a breeze thanks to the nontelephoto angle faster than the human eye, making this a lenssystem that willuses glass-mold aspherical lenses. Suppressing the rotating front lens element. help you discover new worlds of photographic and artistic expression. curvature of field, spherical aberration, and other distortions common in long focal lengths over the whole zoom range and correcting for other aberrations makes for sharp picture quality. The autofocus is quick and quiet thanks to the ring-type USM and inner focusing system. The full-time manual focus, non-rotating front lens element, and wide zoom ring make the lens a dream to use. The hood for this lens is the petal-type EW-78BII.





































covers the range from a standard 55mm focal length that is close standard to to telephoto. The lens system contains 13 air-spaced normal human vision, to a powerful 200mm telephoto focal length elements and uses environmentally friendly lead-free glass. In that brings distant objects into sharp detail in an instant. Not only addition to a compact design for an overall length of only 97.3mm/3.8 scenery and commemorative shots, but also portraits that never inches miss when a retracted, this lens employs a rubber zoom ring for easy single facial nuance, and shots of sports events and animals, in operation. which Innovations such as a lens coating optimised for digital the subject is moving dynamically, are easy with this nimble and photography help minimise flare and ghosts, which often occur comfortable telephoto zoom lens. When used with the EOS 30D/EOS with digital cameras. The lens also adopts a newly developed 400D DIGITAL and other models, the combination of the standard high-speed CPU and an AF algorithm that ensures the ideal AF zoom EF-S 18-55mm f/3.5-5.6 II USM, EF-S 18-55mm f/3.5-5.6 drive II and for various shooting conditions, providing precise and telephoto zoom EF 55-200mm f/4.5-5.6 II USM provides a standard instantaneous operation from zooming to image capture. zoom of 29-88mm and a telephoto zoom of 88-320mm (35mm film equivalents), covering the range from wide angle through telephoto.

Lens construction: 13 elements in 13 groups

Diagonal angle of view: 43° - 12°

Focus adjustment: Front group rotating extension system with micro USM Closest focusing distance: 1.2 m/3.94 ft., 0.21 x magnification Zoom system: Rotation type

Filter size: 52 mm

Max. diameter x length, weight: ø 70.4 x 97.3 mm, 310 g/2.8” x 3.8”, 10.9 oz.





































1 Lens construction: 16for elements in 13 groups Diagonal angle of view:shoot 34° - 12° Lens construction: 20 23 elements in 15 18 18 groups Diagonal angle of view: 34° - 12° catches your attention. You frame it and it’s yours. The satisfaction portrait that candemands compensate to be for set approximately off from the background 3 shutter speeds with a*nice . With dispersion compensates lens elements is easyUD to carry for lens camera high-contrast, elements. around. shake It It corrects so makes sharp you can good picture for secondary use quality. of atavailable up spectrum to The 4 shutter circular light Focus adjustment: Ring-type USM, inner focusing system, full-time manual focus Focus adjustment: Ring-type USM, inner focusing system, full-time manual focus of moments like this is only possible when using a telephoto blur thorough lens. effect, dust-proof up close. Finally, and drip-proof landscape *2 treatment, photographs thisreally lens can put be aperture for speed with sharp, itssteps one diaphragm clear fluorite slower imaging without lens offers element performance. ablur. beautiful The andlens’s two blur The UD ring-type effect. optical lens elements, Itsystem isUSM also and uses Closest focusing distance: 1.2 m/ 3.9 ft., 0.21 x magnification Closest focusing distance: 1.2 1.4 m/ 3.94 1.5 4.6 ft., 5.0 ft.,0.16 0.17 0.21x xmagnification magnification These lenses cover the range from a 70mm or 80mm medium zoom lenses to the test, using the zoom at all positions to find just equipped inner one offering focusing excellent with lens a system full-time element imaging deliver and manual performance quick focus UD and lens that quiet throughout elements can autofocusing. be used to the render in rangeZoom of system: Rotation type Filter size: 67 Zoomfluorite system: Rotation type Filter size: 67 mm two 77 mm Max.zoom. diameter xWith length, weight: ø 76 x 172 mm, g/ distance 3” x 6.8”, 1.6 lbs. Max. diameter x length, weight: ø 76 86.2 84.6 x 172 x 193.6 197 mm, mm, mm, 760g/ 1,470 1,310 3”g/xg/ 3.4” 6.8”, 3.3” x1.7 7.8”, x 7.6”, lbs. 3.2 2.9 lbs. lbs. telephoto focal length with a natural perspective, to 200mm thewith right composition. The EF 70-200mm telephoto zoom lensesthe autofocus Operability high-resolution, mode. is enhanced a high-contrast closest by focusing the705 full-time image quality manual of at 1.2m, all focus zoom close-up system lengths. as its substantial telephoto effect. The visual effect changes are a great all L-type, which means you can count on all of them to well as the Another photography attraction possibility at a magnification of this of autofocus lens isof its0.21x at circular 98-280mm is possible. aperture f/4 or And diaphragm, 140if used 2 deal, so if you are serious about your photography, this is the deliver unequalled picture quality, despite individual differences 400mm which along with creates f/5.6 the when beautiful EF 17-40mm used blur. together f/4L TheUSM, dust-proof with the youExtender will and bedrip-proof able EFto 1.4xI enjoy * I or ideal lens for you to experience the feeling of working with inaImage true Stabilizing or maximum aperture. EF 2xII. construction, photography with along a much with fast higher and efficiency quiet AF and than manual havingfocus to carry a telephoto lens. override, dozen lenses makes around. this lens an excellent performer in the field.





































Lens construction: 18 elements in 12 groups (GMo) in length. aspherical By employing lens, this the telephoto newly developed zoom lens triple-layered achieves high DO lens, thisquality imaging telephoto comparable zoom lenswith realises L lenses bothinhigh an ultracompact image qualityDiagonal size, angle of view: 34° - 8°15’ Focus adjustment: Ring-type USM, rear focusing system, full-time manual focus 1 comparable with approximately two-thirds an L lensthat and of anconventional ultracompactlenses design. * . It The covers DO Closest focusing distance: 1.4 m/4.6 ft., 0.19 x magnification the range lens has a from three-layer 70mm structure midrangesuited telephoto, to zoom which optics offers to resolve natural Zoom system: Rotation type perspective, the problem of tounwanted 300mm, providing diffraction full-scale flares generated telephotowhen effects.Filter Its size: 58 mm compact design zooming. While realising makes it highly a trulymobile, compact and size, it comes it compensates with an Max. fordiameter x length, weight: ø 82.4 x 99.9 mm, 720 g/3.2” x 3.9”, 1.6 lbs. advanced image chromatic and spherical stabilization aberration mechanism and offers to greatly the high-resolution expand its suitability and high-contrast for hand-held imaging telephoto performance zoom shooting. of an L lens. Whether This lens you are shooting also maximises portraits operability or scenery, with ansporting image stabilization events or birds in the wild, this lens mechanism with ensures approximately that you won’t 3 shutter missspeed a single *2 correction photo opportunity. capability, a zoom With the ringsharp lock that and maintains clear imaging the lens performance at its shortest only a DO lens length when cancarried, provide,and thealens full-time also lets manual usersfocus enjoysystem. highly This mobile lens employs lens work. environmentally friendly lead-free glass, and with an optimised lens coating and optical design, it minimises flare and ghosts, which often occur with digital cameras.





































15 elements in 9 10groups groups Diagonal Diagonalangle angleofofview: view:32°11’ 34° - 8°15’ - 8°15’ wide range ofand subject matter from with natural perspective spanning from medium background telephoto blurportraits effects focal lengths resulting for portraiture from changes from 70mm in to 300mm. The built-in image stabilizer (IS) theclass, its this zoom lens offering isring lightweight, lock ideal function cost-performance. compact, and relatively and hasA acompact lightweight high-magnification sizeglass and Lens construction: 13 Focus adjustment: Front group rotating extension system with micro USM perspective impressive telephoto with the angle beautiful of to view. natural The high expression zoom ratio toshots. full exhibits 300mm itsfocal real length strength mechanism in counteracts the effects of camera shake by weight, material zoom. Able make was toused cover thisfor athe highly the entire first advanced element range from group and75mm user-friendly - theto heaviest 300mm lens. group (the Closest focusing distance: 1.5 m/ 4.9 ft., 0.25 0.26 x magnification capable of bringing photography from limited distantshooting subjectspositions, very closesuch to provide as stage, approximately an sports, three shutter speed steps. In addition to “camera most in thecommonly optical system used- to focal reduce distances), operational it willload let you during stayautofocus on your Zoom system: Rotation type Filter size: 58 mm enhanced and wildlife perspective photography. compression It fully covers effect. theAll range forms from of expansive shake correction mode 1” suited for shooting stationary objects, feet operation. looking Combined for that perfect with the shot. micro The USM, autofocus the autofocus drive system is quick has Max. diameter x length, weight: ø 71 76.5 x 122 x 142.8 mm,mm, 480630 g/ 2.8” g/ 3.0” x 4.8”, x 5.6”, 1.1 1.4 lbs. lbs. photographic scenic vistas to expression close-up shots, are made and offers possible, the including appeal of flexibility impressive this lens is also provided with “camera shake correction mode 2”a and micro quiet. motor. The slim exterior and smooth zooming makes this lens images by enabling that take shooting full advantage at the optimal of theangle perspective of view.compression that offers the easy enjoyment of panning filled with a sense of a delight to use. effect and also those that highlight sharply focused subjects speed. by Only environmentally-friendly lead-free glass is used in the isolating them against beautifully blurred backgrounds.optical system made up of 15 elements in 10 groups and a UD lens, which achieves high image quality at all focal lengths, is employed in the first lens of the third group. Furthermore, the optimisation of lens positioning and coating minimises the flare and ghosting that often occur in digital cameras. A zoom ring lock keeps the lens at its shortest length in the wide position and prevents the lens barrel from extending and striking any objects when the lens is being carried attached to a camera with a strap. The use of micro USM lens drive, a high-speed CPU and an optimised autofocus algorithm ensures autofocusing that is both quiet and fast. The image stabilizer mechanism and the optical





































outstanding relatively easy mobility. choice For is the example, 90-300mm if you telephoto want to zoom take alens. course, The When newly these designed lensesoptical are at system their lightweight, with 13 elements compact, in 9 groups and mobile this telephoto zoom lens has high cost-performance because aLens construction: 13 elements in 9 groups Diagonal angle of view: 27° - 8°15’ Focus adjustment: Front group rotating extension system with micro motor USM used in combination photograph of children with playing a standard in a park zoom and lens, include especially the uses best the for onlysports eco-friendly photography, lead-free which glass.isThe imbued circular with aperture the tension ofmicro motor has been added to the autofocus drive. If combined Closest focusing distance: 1.5 m/ 4.9 ft., 0.25 x magnification EF 28-90mm f/4-5.6 surroundings with aIstandard II, you willlens, haveitcoverage is possible upwith to the a telephoto telephoto a compressed diaphragm brings perspective, out a characteristically or when taking beautiful natureblur photos effect. thatWith with the EF 28-90mm f/4-5.6 III or other lenses, it can cover from Zoom system: Rotation type Filter size: 58 mm Max. diameter x length, weight: ø 71 x 114.7 mm, 420 g/ 2.8” x 4.5”, 14.8 oz. range. Which means you will have the entire range of focusing bring a closest wild focusing animals distance in a distant of 1.5m field and close a maximum up. Theymagnification also have the of 28mm to 300mm without any gaps. distances from a wide angle 28mm to the super telephoto 0.25 fastest region x this autofocusing lens is greatinfor their close-up class.photography. A new high-speed at your disposal. Not only that, but at a reasonable price, CPU has been incorporated in the focus control. A new algorithm considering the range of coverage. performs optimal autofocus drive in accordance with the conditions.





































Lens construction: 23 elements in 16 groups 28mm wide-angle setting, with its broad linear perspective,from to the 28mm wide-angle to 300mm telephoto. With three UD minimises flare and ghosts, which often occur with digital Diagonal angle of view: 75° - 8°15’ powerful 300mm telephoto setting, which is extremely effective lenses and three aspherical lenses, chromatic aberration and cameras. In addition, it features a zoom ring friction control Focus adjustment: Ring-type USM, inner focusing system, full-time manual focus for pulling in faraway subjects and compressing perspective. distortions are thoroughly suppressed, realising an approximately mechanism, making it possible to freely set zoom operations, and Closest focusing distance: 0.7 m/2.3 ft., 0.3 x magnification Zoom system: Linear Because it covers a zoom ratio of approximately 11x, users need 11x zoom range with image quality suited to an L lens. And enhanced dust-proof and drip-proof *2 design for shooting under only carry this one lens to shoot almost any subject. Capturebecause the lens comes with an image stabilization mechanism severe conditions. The lens also comes with high-speed AF and Filter size: 77 mm Max. diameter x length, weight: ø 92 x 184 mm, 1,670 g/3.6” x 7.2”, 3.7 lbs. 1 magnificent landscape scenes at 28mm wide angle, and zoom that incan compensate for approximately 3 shutter speeds* , users full-time manual focus system. This ultrahigh-performance zoom on distant subjects at 300mm. Track and capture the dexterous can take advantage of its full capabilities during handheld lens meets the demands of all users from professionals to photo footwork of soccer players in a huge stadium. Take the shooting at 300mm telephoto and in locations with insufficient enthusiasts. photographs you want, of anything you can see, setting the frame lighting. The lens uses environmentally friendly lead-free glass, for close-ups or pull-away shots to get just the framing you desire.







































EF 100-300mm EF 100-400mm Telephoto zoom lenses

EF 100-300mm f/4.5-5.6 USM Focal length and maximum aperture: 100-300 mm 1:4.5-5.6

P074 EF 100-400mm F4,5-5 6 USM ,

EF 100-400mm f/4.5-5.6L IS USM·1/80sec.·f/14

lenses show you their worth. These zoom lenses can be carried by a EF 100-400mm f/4.5-5.6L IS USM Expanding the expressive region of telephoto lenses. The EF 100-400mm zoom lens is a telephoto zoom lens which Telephoto lenses which can capture a moment and keep it from dying in captivity. The tension of an image with the background encroaching on the a EF 100-300mm f/4.5-5.6 USM A 3x telephoto lens which is light, compact, and can be carried

EF 100-400mm f/4.5-5.6L IS USM Focal length and maximum aperture: 100-400 mm 1:4.5-5.6







































EF LENS WORK III

The Eyes of EOS














































The EF Lens World EF-S lenses









































EF-S 60mm Macro lens

Exclusively for EF-S compatible SLR cameras

EF-S 60mm f/2.8 Macro USM ·1/60sec.·f/11

EF-S 60mm f/2.8 Macro USM Focal length and maximum aperture: 60mm 1:2.8

a EF-S prone to occur with digital cameras. The quick and quiet inner Portraying nature's tiny universe resplendent with plants and insects. 60mm f/2.8 Macro USM * 1 This is a medium telephoto macro lens for EF-S lens-compatible

The allure of a macro lens is being able to capture the drama of the

This macro lens can be used only with cameras designed to take EF-S lenses. (It cannot be used with other EOS SLR cameras.)

(→ P.128 Special characteristics of EF-S lenses) *1 Can be used only with EOS DIGITAL SLR cameras designed to take EF-S lenses. * Compatible EOS DIGITAL SLR cameras: EOS 30D, EOS 20D, EOS 20Da, EOS 400D DIGITAL, EOS 300D DIGITAL (as of September 2006)







































EF-S 10-22mm Ultra wide-angle zoom lense


EF-S 10-22mm f/3.5-4.5 USM ·1/180sec.·f/11

EF-S 10-22mm f/3.5-4.5 USM Focal length and maximum aperture: 10-22mm 1:3.5-4.5

Ultra-wide angle EF-S zoom lens offers dramatic breadth and17-55mm f/2.8 IS USM, EF-S 17-85mm f/4-5.6 IS USM, EFas the EF-S Minimum focus is a constant 0.24m over the zoom range, and the perspective. Enabling truly creative composition of both portraits and scenery. Created to meet strong demand for an ultra-wide-angle zoom in the a EF-S 10-22mm f/3.5-4.5 USM * 1 This macro lens can be used only with cameras designed to take EF-S lenses. (It cannot be used with other EOS SLR cameras.) This lightweight, compact EF-S series ultra-wide-angle zoom lens

(→ P.128 Special characteristics of EF-S lenses) *1 Can be used only with EOS DIGITAL SLR cameras designed to take EF-S lenses. * Compatible EOS DIGITAL SLR cameras: EOS 30D, EOS 20D, EOS 20Da/ EOS 400D DIGITAL/EOS 300D DIGITAL (as of September 2006)









































EF-S 17-55mm Standard zoom lenses


f/2.8 aperture brightness and IS flexibility. This EF-S large-diameter standard zoom lens satisfies the most demanding professionals.

With its Image Stabilizer and large diameter, this lens dramatically

a EF-S 17-55mm f/2.8 IS USM *1 This large-aperture EF-S Series standard zoom lens features an

EF-S 17-55mm f/2.8 IS USM Focal length and maximum aperture: 17-55mm 1:2.8











































A 5x zoom covering wide-angle to medium telephoto. The ideal lens for traveling light while still packing a lot of punch. This is a highly versatile standard zoom lens for EF-S lens compatible

a EF-S 17-85mm f/4-5.6 IS USM *1 This lightweight, compact EF-S series standard zoom lens is

EF-S 17-85mm f/4-5.6 IS USM Focal length and maximum aperture: 17-85mm 1:4-5.6











































Standard zooms both nimble and quick. Capture both smiles and scenery beautifully in the flash of an eye. Developed exclusively for cameras supporting EF-S lenses, these

EF-S 18-55mm f/3.5-5.6@USM Focal length and maximum aperture: 18-55 mm 1:3.5-5.6

This lens can be used only with cameras designed to take EF-S lenses (Cannot be used with other EOS SLR cameras)

a EF-S 18-55mm f/3.5-5.6 @ USM * 1 This very cost-competitive standard zoom lens was developed

Aspherical lens

. The minimum focus is 0.28m throughout the zoom range. The lens 2

(→ P.128 Special characteristics of EF-S lenses) a EF-S 18-55mm f/3.5-5.6 @* 1

EF-S 18-55mm f/3.5-5.6@ Focal length and maximum aperture: 18-55 mm 1:3.5-5.6









































EF LENS WORK III

The Eyes of EOS

September 2006, Eighth edition









































EF Lens Accessories EF lens accessories

Filters that can adjust light to further optimise shooting performance. FILTER

PROTECT

POLARIZING FILTER

SKYLIGHT

PROTECT

UV

52mm 58mm 67mm 72mm 77mm

Softmat No. 1

Softmat No. 2

Softmat No.1 & No.2 52mm 58mm

Circular Polarizing Filter PL-C

Circular Polarizing Filter PL-C

52mm 58mm 67mm 72mm 77mm (@)

This neutral filter protects your valuable Softmat filters mildly soften the focus Polarizing filters enhance picture quality

SKYLIGHT

52mm 58mm 72mm

This light amber skylight filter is for use

UV

52mm 58mm 72mm

This colourless filter is for use with black-

52mm Drop-in Screw Filter Holder

52mm Drop-in Screw Filter Holder

(with protect filter)

A holder for the 52mm screw-type

Drop-in Circular Polarizing Filter PL-C 52

Drop-in Circular Polarizing Filter PL-C 52

A drop-in filter for use with lenses











































Circular PL Filter Effects Without Circular PL Filter

With Circular PL Filter

Emphasises the blue of the sky











































GELATIN FILTER HOLDER SYSTEM

CLOSE-UP LENS

TRIPOD MOUNT

Gelatin Filter Holder Adapter III

Gelatin Filter Holder Hood III

Gelatin Filter Holder III

250D

500D

500

Tripod Mount Ring A@(B)

This is a separately sold black ring-type These screw-in lenses are an easy way to 52mm 58mm 72mm*1 77mm*1

Gelatin Filter Holder Hood IV

Gelatin FilterGelatin Filter Holder IV Holder Adapter IV

This convenient holder system allows

*1 For the 500D only. * The working distance from the end of the lens is 25cm

for the 250D, and 50cm for the 500D·500. (At ∞) In

Tripod Mount Ring A@(W)

EXTENSION TUBE

This is a separately sold white ring-











































EF Lens Accessories EF lens accessories

Loupe

4x and 8x Loupes provide superb resolving power, and their Super Spectra

Included: standard rubber eyecup, rubber eyecup with strap, translucent hood, light shading hood, soft case.

Hoods

EW- 54II

EW- 78C

EW- 60II

EW- 78D

EW- 60C

EW- 60D

EW-79BII

EW- 63II

EW- 83II

EW- 63B

EW- 83BII

EW- 65II

EW- 83CII

EW- 73II

EW- 83DII

EW-73B

EW- 75II

EW- 83E

EW- 83F

EW- 75BII

EW-83G

EW-78II

EW-83H

EW-78BII

EW-83J











































Variety in the Canon Lens World Although Canon’s precision optical technology is readily visible























































































Digital Cameras and Digital Video Camcorders

Broadcast Equipment

Canon High-Performance Lens Technology also at Work in the Field of Digital Imaging

Pursuing World Events in Real-time: High-Performance Canon TV Zoom Lenses

Digital imaging devices are now mainstream and continue The to spread of satellite television broadcasts and 24-hour news













































Variety in the Canon Lens World

Semiconductor Manufacturing Equipment

Office Automation Equipment

Supporting the Progress of Electronic Technology: Ultra-High-Resolution Canon Lenses

High-Precision Optical Technology: The Heart of Laser Beam Printers

CPUs, LSIs, memory, and other high-precision electronic Canon holds an overwhelming world market share for laser

To print an image with a resolution of about 560 dots per













































Variety in the Canon Lens World

Medical Equipment

Contributing to Human Health: Another Type of Canon Lens Medical equipment contributes to healthy lives, and here, too,

























































































The Basics of Interchangeable Lens















































Relationship between SLR Camera Structure and Lens Figure-1

1. Check the subject through the viewfinder.

2. The mirror rises and the shutter opens to expose the film/image sensor

3. The shutter closes and the mirror returns to its original position.















































The Basics of Interchangeable Lenses

Photo 1

Photographed using an EF 28-135mm f/3.5-5.6 IS USM

Figure-3















































Screen change in accordance with focal length

15mm (fisheye)

14mm















































The Basics of Interchangeable Lenses

20mm

24mm















































Perspective/Depth of field

f/1.4

f/2.8

































































































































































































































































































terms of angle selected. The EF of view lenswhen seriesattached containstoathe fullEOS line 30D. of wide-angle Looking cause confusion when you first use a digital SLR camera. zoom at these lenses specs, and it would wide-angle seem possible single focal-length to take a photograph lenses,However, with once you get used to this new aspect, you will be including a shallower the depth EF 16-35mm of field than f/2.8L if theUSM, EF 135mm EF 17-40mm f/2L USM f/4L able wereto use these differences to your advantage in creating USM,with used EF 24-70mm 35mm film, f/2.8L but this USM, is not and the EF-S case. 10-22mm Since thef/3.5-4.5 focal new angles of view and depths of field for each lens. Part of USM todoes length allow not you actually to select change, the lens the that depth matches of field in the terms camera the ofappeal of the EF lens series lies in the wide range of body’s the sensors screen andsize. the blurred image in the out-of-focus areaselection they offer you with a line-up of over 50 lenses,







































the protective glass,from which those causes the subject be photographed in a position EF 300mm f/2.8L IS USM employ a the camera differ of film intothat they possess a higher Alldifferent are lit up by the bright lighting in the stands, or from the actual position. meniscus lens to suppress internal reflectionnumerous of the image that occurs light in reflectivity as well as a characteristic known as regularheadlights or on the cars, creating bright source digital cameras. “mirror” reflection, which has the effect of creating flaring Ordinary and super-telephoto lenses have protective glass in fron ghosting inside the lens when light from a bright source of the first lens unit. If this glass is flat, any light entering the enters the lens and reflects back to the image sensor. Inlens order from a bright light source will be reflected off the image to resolve this problem particular to digital cameras, a sensor new and back onto the inside of the protective element,







































EF 16-35mm f/2.8L USM and other EF 400mm f/2.8L IS USM EF 600mm f/4L IS USM particular prevents stadiums ghosting and photographic racing while circuits at conditions thecan same now might time deliver achieving mean the thathigh using to reduce a the amount of repeated reflection inside the lens. lenses to suppress the flaring and ghosting occurs easily with digital EF 400mm DO IS USM contrast expressiveness digital camera forf/4 the will needed resulting result by inimage. professional more flaringphotographers and ghosting than Further, using if the lens surface, which hasthat a large effect on reflectivity, cameras. digital a film camera SLR cameras were used. thanks If ato strong theirlight outstanding source isimaging present is treated with a special multi-layer coating with high performance. inside the frame, the light reflected off the image sensor transmittance. can This allows any light reflected off the image create complex reflective patterns inside the lens, resulting sensorinto escape out of the lens in the direction of the subject, flaring and ghosting. To prevent this effect particular to thus digital reducing flaring and ghosting. And Canon’s legendary







































cameras, models can when achieve enlarging quality a equal digitalto photograph that of gelatin many silver times, the chromatic and sizes depending super is blur UD on caused lens the difference size elements by of hand the in magnification movement to image correct in the the when digital often aberrations taking caused camera. thebyFor prints. the power Addoftothe this work the lower is largely costdetermined of printing afforded by the sharpness byexample, wide-angle mentioned photograph. a since for lenses This telephoto the isappear image a small and infactor, the photographs wide-angle EOS but30D can lenses. is as ruin smaller colours an The otherwise than which in run a printer of the image. and the Shooting ability to with manipulate a high-resolution the image lens on a produces over EF excellent 35mm 400mm dividing filmphotograph. camera, f/4lines DO IS inmaking USM the subject. and a print EFThis 70-300mm of the type same of f/4.5-5.6 colour size involves running DO IS computer, more impressive and you shots are close whento enlarging realisingdigital an ideal images in image to is more USM enlarging sizes have noticeable the DOoriginal lens the elements, image larger to the which a size greater are of the very degree. print, effective causing Andin since a reproduction. of up to A4 andItA3. is for Thethese EF lens andseries othercontains reasons that a broad there deterioration suppressing the linewill more a photograph strong in thecolour overall is enlarged, aberration. quality the of The the more image. effects blur becomes of these likely up of high-resolution be more and more lenses, chances including to experience the L-type the lenses, funevident, special of optical a similar materials amountand of hand the DO movement lenses are will most be more evident







































frequency of light reflected from the subject. This phenomenon not only reduces photo sharpness, but it can also create borders o covering the spectrum from wide-angle to super-telephoto. EFin 300mm f/4L IS USM which should not be present, at the edges of subjects the image. EF lenses designed to counter chromatic aberration make it po to achieve uniform sharpness correct colour reproduction from the center of a photo to its edges. Using the right IS lens for the scene can allow you toand achieve EF 400mm f/2.8L IS USM sharp image performance with little evident blur even when EF 400mm f/4 DO IS USM making large prints. EF 500mm f/4L IS USM

EF 600mm f/4L IS USM







































believed to be the lens and film which determine the colour is the “daylight Instead of choosing type,” film which types provides for different the correct light sources colour and reproduction. However, in the case of digital cameras, filters balance it is notforunder colour sunlight, warmth, and thethe white other balance is the “tungsten is set beforehand type,” only the lens, but rather the process of how the light received which to match provides the lighting the correct conditions. colourThe balance digital under EOS tungsten series offers by the image sensor is turned into an image that makespreset lamp the light. white Inbalance addition, modes underwhich fluorescent can belight, selected the for correct natural difference in colour reproduction. It is also possible to finecolourshade, light, cannot cloudy be obtained conditions, without incandescent using a gelatin lighting, filter, etc., t tune the colour reproduction, the white balance settingfluorescent correct and the lighting, colour temperature. and flash photography. Not only that, but the colour matrix selection. the white balance can be adjusted manually or automatically. The blue shadow-like effect seen in portraits taken in the shade using daylight-type colour film is no longer a problem, thanks to the white balance adjustment offered by digital photography.





































allow often advertised digital you camera to select and asfrom check being a the variety suitable result, offor colour you reproducing can matrices. adjustskin the A colour colour colours matrix or the bright balance isof composed the colours lens. However, ofofthree flowers, properties: SLR so cameras photographers hue,are saturation, founded choose on and film the brightness. depending on assumption Digital of being theircamera purpose. able toterminology change the lens. includes Whether another youterm: are colour using aspace, film orwhich digitalrefers camera, to which it is very part important of the region that of the visible colour reproduction light can be reproduced. (colour balance) The most of allcommon the lenses colour be space standardised. is sRGB.The Since traditional it contains standardised four hues, itcolour is possible balance to that select Canoncolour lensesreproduction are renownedcharacteristics for is also a vital aselement though in you were choosing providingfilm. an exceptionally It is also possible, convenient if the situation photographic demands, to choose environment Adobe—— RGB, even which forisdigital a colour cameras. space that can reproduce a wider range.





































Do not thethrough camera face down photographbrightness, sharpness, by touchingcontrast, up the image and other afterwards factors onusing your enter be acleaned theplace camera off the sensor surface, the lens either mount. doAny it asdust described that gets in Watch out for dust getting inside the body cap on the computer. especially computer, However, avoid with JPEG becoming formatover-dependent images, since a on onyour the the camera image manual sensoror may take appear the camera as black to aspecks Canonor service smudges computer to fix standardised type theofshortcomings “developing”of (actually your photography. a type of digital on center. The the image. To avoid this, we recommend doing the reasonprocessing) image is that mosttakes image place processing inside the is accompanied camera right when by following: a drop the photograph in the quality is taken. of theIf image. you use The a RAW basics format, of good you have to photography process the image are the on same your computer for digitalusing cameras the bundled as they are for film cameras. software (including If yourDigital goal isPhoto to take Professionals). a good photograph, This process it is of vital importance allows you to manipulate that youthe check image theas exposure you like and without focus and prevent a causing the drop camera in image from quality shaking. ——Iteven will if bethe safest same if data you only is rely on computer treated over and over. touch But ups again, as a final, no amount complementary of treatment aspect later of your can fix aphotography, picture that was if you taken wish atto a wrong get theexposure, most out of out your of EF lens’s focus, or ifimage the camera performance. shook when the picture was being taken.














































































































the standard portrait lens. The objective is to focus on the eyes and adjust the imagesufficiently using a blurblur even when photographing with the aperture the model wider the aperture, in portraitthe photography shallower the is very depth of effect to transmit a feeling of the surroundings. open.

field becomes, important. For increasing this reasonthe among blurothers, in the out-oflenses between focus areas. 50mm 85mm andlenses, 135mm which are often are often used,used in order for portrait to maintain photography, a certain can distance deliverfrom an the model. The standard impressionistic background zoom lenses blur effect whichsince are oftenare they sold much together brighter withthan camera zoom bodies lenses. cover this focal Single focal length length range, lenses and generally are therefore have a generallymaximum brighter suitable for aperture this type than of photography. zoom lenses, Sometimes, making themhowever, ideal for it photography is necessaryusing in portrait a photography shallower depth to use of field. a large-aperture And of course lens if you with a largertomaximum want reduce the aperture blur a bit than all you is offered have to with do such is close zoom thelenses. aperture It goes the required without amount, saying that gettinggives which the most large-aperture out of the lenses lensesyou a broader already have isof range a good expressiveness. thing, but the powerful effect afforded by a large-aperture lens is the ne plus





































135mm f/3.5-5.6 IS USM. The shutter speed was slow and the image is not images of the people walking in the background are blurred showing that this lenses outstanding when optical used atcharacteristics. maximum aperture Notmeans only dothat theyyou allow days any include have hand you or in using movement a studio a flash, with during high professional sensitivity the shotlighting will filmruin forequipment. film the photograph. cameras, clear due to shaking. photograph was taken with a slow shutter speed. to be emphasise extra careful the subject with focusing. with their Most shallow USMdepth lensesofare field, Often This and but atype high the of greatest ISO shaking sensitivity photo requires ops setting come the utmost for outside digital caution at cameras. dusk and or in attention a they also deliver equipped with full-time excellent manual image focusing, quality compared making it possible to zoom poorlyto especially However, lit interior. flashes when blowing can Anddestroy there up photographs are the many lighting places taken atmosphere that with don’t digital of allow a lenses. make small adjustments to the focus even when in autofocus the use ofhigh-sensitivity cameras. location, tripods. All of these film difficult is grainy,lighting and a high-sensitivity situations are mode, which can be a great help when you have to get the ideal for setting onISa digital lenses camera to showwill off their causecapabilities. noise to be generated in right focus rapidly in difficult focusing conditions.





































photography become possible in these situations, but image This can being used. be done Manyby ofusing themeither achieve a special the softsoft-focus focus effect lens or a quality is maintained because the effects of hand movement soft-focus through a clear filter.pattern on the surface of the glass, which can can be suppressed even when using low-sensitivity film. often cause the blurred areas of a photograph to appear





































is effective when you want to further emphasise impressive bodytoand image. you bring Incan contrast, abe model’s used specially with facemost completely designed EF lenses, soft-focus intoincluding the frame lenses the when EF-S deliver areas, such as the eyes or smile. a natural, using series alenses. 35mm beautiful They or digital come softening SLR in two held effect types, horizontally. that theenvelops EF 12However, II and the subject in a25 when EF soft you II,light, with want different throughout to get that thicknesses the onewhole step (approximately closer image, for and a shot the12mm with effectand can be adjusted. greater 25mm respectively), impact, Thean EFextension lens and series the EF tube includes 25 can II can bea be useful. 135mm used at Although soft-focus closer lens that using distances. oneiswill The easy cause amount to use distant in you portrait can objects getphotography, closer to go depends out of allowing focus, on the it will you to achieve reduce master the lensexpressive closest being used. focusing and beautiful distancesoft-focus of the master effects. lens.





































with their several macro standard lenses zoom withlens, different making focal it unnecessary lengths and to buy a maximum macro lens. photographic True enough,magnification many commontostandard match allzoom subjects and situations. lenses come with There a macro is always function, something and arenew designed to discover to allow when a certain youlevel glimpse of close-up into the photography. world of macro But using lenses. a macro lens which is specifically designed for close-up photography





































the background to produce a mysterious effect is the major higher photographic magnification. And not just with flowers addition, the brighter maximum aperture of macro lenses characteristic of the macro lens. EF-S 60mm f/2.8 Macro ·1/80 ·f/8.0camera either – attach a macroUSM lens tosec. your and take a provides look at a greater blur effect for backgrounds. Macro lenses (1 x magnification) some of the things around the house for some fun. It’s just are no longer just for close-up anymore, and can even be used like when you were a kid and went around looking at things for subjects which are far away. Your photographic enjoyment through a magnifying glass. Macro lenses maintain high will grow by adding a macro lens to your standard zoom lens. image quality during the high magnification photography of life-size, 0.5× size, and even 5× magnification. EF 50mm f/2.5 Compact Macro, EF 100mm f/2.8 Macro USM, EF 180mm f/3.5L Macro USM and EF-S 60 f/2.8 Macro USM can focus up to infinity, and not just to close distances, so they can be used





































converter magnification means choosing is according how muchto larger the desired the subject focusing appears distance on such thecases, a standard macro lens with a shorter focal length EF and depth film or the of photographic field. Photographing elementsstill-life than incompositions real life. Maximum can be handy. Of course, if you want to emphasise the subject (which by definition photographic magnification don’t move) is a poses lens’sno magnification particular problems, when by blurring it the background, a telephoto macro lens is a good but it is always photographs a best subject to use as large a telephoto as it can. macro Thelens EF 50mm in order option. f/2.5 to The medium telephoto EF 100mm f/2.8 Macro USM maintain reasonable Compact Macro useddistance by itselffrom has athe magnification subject when oftaking 0.5 and ×, the EF-S 60mm f/2.8 Macro USM lenses are halfway between pictures EF 100mm of insects f/2.8 Macro and other USM, living EF 180mm creatures f/3.5L thatMacro are likely USM standard to macro lens and long telephoto macro lens, making it flee at and EF-S the60mm sight of f/2.8 a photographer. Macro USM have However, equalusing magnification, a telephoto a popular, easy-to-use choice for beginners and pros alike. macro and thelens MP-E often 65mm makes f/2.8 it difficult 1-5× Macro to fit Photo the entire specially subject designed for close-up photography has a magnification of 5×. Choose a lens which best suits your subject size and purpose.





































hand shaking. Clear pictures without blurring can be shot by using a tripod andpossible, macro flash. MP-E a tripod 65mm that f/2.8 1-5x can Macro be used Photo·1/125 for low-angle pay careful depth of field attention and preventing to focusing, the camera as it canfrom be thrown shaking off the are byrisk photography. of handuse or camera shaking with lenses that have a sec.·f/11 (2x magnification) Be sure to use a remote switch and release it so as very important. even the smallest Compared adjustments withinordinary the position photography, of the focus long the focal The most common way of calculating the not length. to jar the camera. depthresulting ring, of field with in an a macro out-of-focus lens which photograph. has a short Basic focusing rules threshold of for handheld photography is to limit it to a shutter distance thumb include is extremely focusing shallow. on the1:1 center photography of a flowerwith when a 180mm speed equal to 1/focal length, but this doesn’t work for macro macro lens offers photographing flowers a depth and of the fieldeyes of less of an than animal 1mmwhen at photography, which requires the use of an electronic flash maximum aperture. photographing animals. By blurring If the location the area which before you and want behind and/or to put a solid tripod and remote shutter switch to prevent thefocus in subject is small, taking the advantage autofocus ofmay the shallow latch onto depth a different of field, bluritcaused is by camera movement. possible depending location to emphasise onthe howsubject. the photograph That said,iswhen framed. you are taking a photograph However, the full-time ofmanual merchandise focus function for an advertisement on the and want EF 100mm to make f/2.8 sure Macro the entire USM,subject EF 180mm is in focus, f/3.5L Macro close the USM aperture and EF-S and 60mm position f/2.8 Macro the camera USM so can that fix this the subject by allowing is as you parallel to make minute as possible adjustments to the camera’s to the focus focal even plane. after the autofocus lamp comes on indicating focus has been achieved.





































A three-lens set with an F value of 2.8 is optimum for photography utilising a f/2.8Lultra from USM, wide-angle EF 24-70mm to ultra f/2.8L telephoto. USM, and Driving the EFaround 70-200mm which in a is a bit smaller at f/4. None of these high-performance large aperture. In addition, the three-lens f/4 set is lightweight and compact while allowing youwill to enjoy with an L lens. car is useful f/2.8L IS USM forand getting EF 70-200mm shots of everyday f/2.8L USM. life around While they town, zoom may lenses letshooting you down no matter what conditions or but rival not if you’re a single looking focal for length scenes lens in in nature, termsyou’ll of brightness, find yourself scenes they you come across in the field. climbing are nevertheless mountains a large-aperture and trekking zoom alonglens snowy settrails, with ausing brighta lot of energy, maximum aperture so youof won’t f/2.8want covering a lot the of heavy wholeequipment range from a dragging very wide you 16mm down. to aFor telephoto these situations, 200mm. If it’s selecting light weight zoom lenses looking you’re for theirfor, mobility there are andalso easethe of carrying EF 17-40mm is the f/4L most USM, effective EF 24-105mm answer. f/4L IS USM, EF 70-200mm f/4L IS USM and





































many pinpoints of light, such as night scenes, often causes those points to appear blurry due to the effects of spherical aberration in the lens. Spherical aberration also causes wide-angle lenses to produce images which appear distorted. To eliminate these effects, the EF lens series has benefited from the development of four types of aspherical lenses, (ground aspherical lens, replica aspherical lens, glass molded aspherical lens, plastic molded aspherical lens) which correct this aberration. The L series, in particular, delivers images with little or no blurring or distortion even at wide angles and large apertures.





































goal of all photographers, but it is often hampered by the shift functions exist as a standard feature on large-format optical characteristics of the lens. For example, tall buildings cameras, in which the lens, the film, and the focusing and trees often seem to taper annoyingly when photographed adjustment are each designed independently of each other. with a wide-angle lens due to the low angle from which they





































betweenTS-E Canon’s distortion the areoptical lens corrected series axis using and offers the shift. tilt camera’s and Also, shift you withmake can focal automatic plane. sure As an the aperture added entireplus, length control. you ofcan a use receding shift and tilt subject in situations is in focus where by using it is not tilt. With ordinary required, to achieve lenses,surreal it is often effects. impossible This is to fit theas known entire reverse subject tilt and intoshift. the depth of field, even when the aperture is closed to the smallest size. The tilt function overcomes this obstacle by changing the normally





































wide-angle lenses) and macro ports (for macro lenses) are available creatures shapes underwater that inhabit do photography notthe exist area onbecause you land. will Tophotographers be take visiting photographs andare imagine no shots longer the of small creatures, or you want close-ups of the depending on the lens being used. underwater, restricted types of photographs to ahowever, measly 36 you you exposures want needto totake. put peryour roll For and example, camera also because and a 20mm, expressions lens on the different creatures’ faces, use a 100mm in a waterproof, they 14mm, canornow 15mm check pressure-proof fisheye each lens shotwould as case it is be taken. known good The if asyou only an underwater were problem macro. And if you are dealing with timid little fish like gobies, housing, that going remains to be ortaking aisblimp. the photographs impossibility These are of often switching manta sold rays, inlenses diving whichshops. can a 180mm telephoto macro would be best. underwater, forcing photographers to choose between a wideangle lens or a macro lens.





































by waiting for the creature to peek out from the coral. Location: Iriomote-jima, 17m/56ft.·EF 100mm f/2.8 Macro USM·1/125sec.·f/11·ISO/200·white balance/auto close as possible photographs of the to the subject subject, taken inwith order a to wide-angle reduce the lens amount and at how to frame it. It is probably better if you choose a slow Okinawa Prefecture (Japan)·water depth: approximately 9m/30ft.·EF 180mm white balance·flash underwater housing·2 underwater flashes·autofocus · · · · f/3.5L Macro USM 1/125sec. f/8 ISO/200 balance/auto white of water very close between distances, the or lens shots andwhite of the the subject, subjectasonly, the water usingsubject a is at first. Look through the finder and try different shots balance·underwater housing·2 underwater flashes·autofocus

macrowith filled lens. plankton In orderand to develop other flotsam your own andsense jetsam, of which whatatyou different angles. If you are using a digital camera, you can reduceyou want, theshould claritybecome of the photograph. very familiar with one kind ofsee lens. the image as you aim, so the results of your The most appropriate lenses for this purpose are the experimentation can be applied right away. EF 20mm f/2.8 USM, EF 28mm f/1.8 USM, EF 50mm f/2.5 Compact Macro, and EF 100mm f/2.8 Macro USM. The lens ports on the housing (the part of the housing that holds the lens) come in two different shapes: a dome port for widelenses and a macro port for macro lenses. When selecting one





































position in the background to take this silhouette. Location: Iriomote Island, Okinawa Prefecture body can all from cause moving your body – usually to move by standing, around, the kneeling most common or lying yourself between method. When you rocks, are underwater, or gripping with inhaling yourfills elbows. yourIflungs you are (Japan)·water depth: approximately 18m/59ft.·EF 15mm f/2.8 Fisheye·shutter speed priority AE·1/125 · · · · sec. ISO/200 white balance/electric bulb housing autofocus shooting down on the problems sea bottom. are focusing Another errors way is and to camera addunderwater weight movement. to dealing with theair, with making a sandy them bottom, act likeyou flotation can simply devices, lie down while on it Focusing weight belt, errors removing can occur some because of the air thein lens themay BCD have (thebeen diving commando-style, exhaling has the opposite with oneeffect, of yourmaking legs outyou andsink. bentFloating at the knee up aimed at something equipment which helps other tothan adjust theyour subject floatwhen as well theas picture keep (making and down the asshape you breath of a “4”) is one to stabilize factor inyourself. camera None movement, of this so wasair the taken, tank and onunwanted your back). blurring can occur if the camera should you should evertry be to done breathe on a coral as slowly reef, however, as possible, since especially this will moves during the exposure. destroy when you thepress coral, the soshutter choose button. a place without coral.





































Ishigaki Island, Okinawa Prefecture (Japan)·water depth: approximately tungsten film under natural light in order to bring out the mysteriousness of the creature. Ishigaki pointless Macro it is better USM because to–use preferences autofocus. of the low regarding Coastal precision, waters autofocus but now tend with and to 30m/98 Island, Okinawa Prefecture (Japan)·water depth: approximately 8m/26ft.·EF 15mm f/2.8 ·1/125sec.·f/8·ISO/200·white balance/auto white balance·incandescent lighting·natural Fisheye all murky, manual be the advances vary. presenting Once that you have many getbeen used problems, made to it, manual in but autofocus the focus light·underwater housing·autofocus

can be accurate sensors focusing on delivers the camera, inmore very in-focus interesting almost all photographs, underwater ways in but at photography the Okinawa same (Japan) time, employs if the or other autofocus autofocus, locations is used especially where correctly, the when seaitis using can very give clear. wide-angle you One some thing lenses. pretty you The should sharp autofocus shots. keep in The is mind, in trick factis to more set however, the accurate camera is thatthan to overusing one-shot manualthe autofocus focus autofocus when and you will use are the dealing with autofocus consume electrical lock a backlit by pressing power, situation, so the you shutter soshould depending button have on extra how you choose halfway. batteries Then, handy. move the area the camera for autofocus, forward you orshould definitely take backward untiladvantage the shot is of in elements focus, andwhich pressallow the you to focus shutter button on athe spot rest which of the willway. let you take the photographs you have in mind.





































protect it from predators. If you try to approach it, one of the adult elephants will always waterblock your mountain. view, but For you this reason yourthere distance, are few youroads, able making it animals. whiff tend to of run danger Placing at the – you them sight can in ofonly their a car,get surroundings although so closethey to them. ismight another To getground f/4.5-5.6L unapproachable way of from ISthe USM animal mayif come tokeep approach in handy you to allow ifareyou you keep toyour keep to see the elephant family in their natural habitat. difficult to position yourself as you might want to, to get the pictures you want. A lot the of triangulating is needed if you want to include the the looming form Let of overcome excited achieving and beautiful this approach obstacle, wildlife the photographers car. photographs. If a baby elephant use You telephoto won’t is with have lenses. the distance its animal and asdon’t the central move. emphasis If you succeed of in shot. making the thezoom animal Kilimanjaro as the backdrop to a photograph. So let your zoom do the walking. One technique mother, freedom she to walk won’t isaround totake lie in any and wait chances position for theand animal, thewill camera generally withat the anyget do angle the in walking, as it were. African elephants and Mt. Kilimanjaro·Amboseli National Park, Kenya·EF 70200mm distance the you way want, between predetermined, since you theare camera dealing but and if you with her are untamed offspring. new to the animals, Inlocation this type which or off/2.8L IS USM·aperture priority AE·f/4.5 the animal, situation, require delicate a 500mm you might handling. super-telephoto wantEven to test if you your lens are stealth should including and allow get the you as close as you sufficient surrounding distance can. scenery Some to capture inanimals the photograph, photos require of the distance, a telephoto elephants so you zoom without will lens need a lens alarming them. with a long focal length, which you can then use to get closer and closer until the animal fills the frame.





































thousands at one time. I was training my 500mm on the activity, when suddenly and the lion’s protective colouring, in addition to the grass in front of its face come you to go. probably really They often close. won’t hide Examples need in dense a telephoto are undergrowth, the Japanese lens to capture in macaque, the tops images like on surrounding which ofthe cage animal’s bars the and eyes. animals, fences Thisand out is aof not generally the just photograph. close-ups applicable ofThe lions, rule. shallow bears, When those gnus were right before my eyes. An alligator had approached, spooking makes the lion hard to make out with the naked eye, but if you use a 500mm the gnusafar. in crossing and runnatural up the river. I was ableway totelephoto super-telephoto lensOne anda its unrivalled shallow depth ofyou field, you canthem putcan tends from trees, to ortheir converge inFor deep instance, grasses, inmaking groups a them standard which on can orget moderate hot in the springs of in a the depth taking and good lens gazelles. of a picture field of with telephoto element a telephoto that lens no lets lens photographer at maximum blur aperture, out even of the hope capture the moment with the 70-200mm zoom I had on another camera. but the lion’s face out of focus. Be careful to make the lion’s eyes mountains, can shot. be You handy want and toababy capture clean, seals. clear horses Ifshot, you’re and but cows inyou’ve a wildlife on agot ranch, park branches taking ineverything shot, the to get depth leaving close of to field only is the becomes the sun. pacing The very focal panther shallow, length as the and of a center lens if your must of focal be your focal point.

and leaves Africa, close-ups families with andthe all of elephants sorts background of other may slightly things pass by in blurry, your the way. safari emphasising What car, attention. point very to so an long is the to Bring animal’s produce the camera nose a photograph or mouth, as close inthe which to aeyes shaded the will sun part befills out ofaof the EF 16-35mm the do? subject You canand take f/2.8L giving advantage USM thewill image ofbe the useful that shallow much in letting depth moreyou of impact. field achieve fence focus. sizable ofThe a asarea possible of theand frame. photograph The sun takes the animal up an area whenabout it is some 1% of the wide angle relatively telephoto wide lens to needed angle put everything ofto view capture gives but such you the more a subject large freedom animal of theto from ways the focal afrom length the fence. in theTframe, elephoto so its lenses diameter – they’re will be not2mm just for if the relatively close experiment photograph with outdistance, of the focus, background, thereby while including drawing such asthe capturing thesurrounding viewer’s the mountaintops lens used is a 200mm and sporting lens, orevents 5mm for anymore. a 500mm lens. So if savannahof vastness attention to too. the theopen animal plains, and not being thecareful surroundings. to exclude The longer you want it to fill half the viewfinder, you will have to use the unnecessary the focal length, elements. or the larger the aperture, the shallower the depth of field becomes. The grass that was in the way of the animal’s face as seen with the naked eye is no longer so





































off. One evening a flock of pelicans were all facing the same direction waiting for the wind to rise, when they started taking off one at a focal in a focal length length to suit. of 1200mm, There are and many giving unknowns, you a sun though, 12mmlifetime, lenses. inand The andEF some 70-200mm of themf/2.8L are pretty IS USM small is –great so small, anywhere. in fact,If time. The image was a bit too small even when I used the 500mm, so I attached the Extender EF 1.4x @. I followed the pelican with the it took off, leaving focus up toone the AImoment servo. diameter. you nevercamera And know ifasyou’re what they using will athe digital do from camera, which has tothat 200mm the a youdoesn’t will probably give you need enough a lensdistance, with a long attach focalan length extender. if smaller next. That’s image where size than a zoom a 35mm lens can filmcome camera, in very the sun handy, will The want you bright tomaximum get a reasonably aperture sized letsshot you use of one. theEven lens as larger though appear even larger, so there may be times when the Extender the extender birds, like cranes, weren’t white there. herons, And and witheagles, the EF tend 100-400mm to be f/4.5 EF 1.4xII might be the better choice. You have to placecautious, 5.6L the IS USM, and you will won’t fly away have at the anyfirst problem click finding of a shutter, the right so camera at just the right distance for an animal – say a goat angle getting on ofclose-ups view when of them you need is difficult. it thanks Photographers to the 8 x often turn top of a hill or a bird in a tree – to capture it in combination magnification to a combination it offers. of super-telephoto Speed is often lens of the plus essence extender, when which with the sun at the available focal length. The sun seen through photographing is unfortunatelyin accompanied the wild. by the drawback of making the a super-telephoto lens does not stay still, either, so therelens is but even a harder to keep still than usual. Even more care is moment when it will form the right composition with theneeded to keep the subject inside the viewfinder, requiring animal. As a reminder, these recommendations are onlycare with focusing and avoiding shaking the camera. appropriate when the sun is very low in the sky, such as at dawn or dusk. Staring at the sun at other times, whether it’s with the naked eye or through the viewfinder of your camera, is extremely dangerous unless proper precautions are taken to prevent eye damage or blindness, not to mention possible damage to your camera.





































shallow depth of field means that with each gust of wind the bird goes out of focus. This problem optical or wings the EF of characteristics, a500mm swan taking f/4LThe IS off, yet USM the their with IS true function’s theworth Extender mode (as well EF 2 is 1.4 as x that find II yourself of relying on the autofocus more than you was resolved by using an Extender EF 1.4x@ with the EF 500mm f/4L IS USM, taking advantage of its autofocus andviewfinder IS functions to keep the bird’s right in the focuswould frame. I placed the lens on the when it really isn’t andIS effective. the you function) can Keep stillthe can usebird only the in autofocus. truly the be understood When as used itwhen flies in head past you normally you make – even at times of the car to maintain more sharpness, in a halfway hand-held type of situation. combination and large use prints a shutter of with a photograph speed thewindow IS function, of frame 1/15 taken sec. you with tocan take a digital reduce multiple SLR theshots. risk camera. appropriate, ofOf such as when a fox gets behind a fern in the blurry the shots pictures you take, even one more, orallowing two are you bound to move to bethe keepers. lens undergrowth, to and the lens refuses to focus on the fox, or capture a bird suddenly taking off or a flock in flight.when the wind kicks up a cloud of dust partially hiding a herd of giraffes. At times like these, you can use the full-time manual focus (a standard feature on many USM lenses) to make slight adjustments to the autofocus without having to switch into manual focus mode, allowing you to concentrate on the photograph instead of the camera.







































EF LENS WORK III

The Eyes of EOS














































EF Lens Technology









































1 Constantly Pursuing the Best: Canon’s Lens Design Concept

The primary task of a photographic lens is to reproduce an image of objective point can be clearly seen, allowing sure a also the steady progress to the desired goal.

(

Canon’s idea of an ideal lens

)

There are three general image formation requirements of ideal photographic lens: The light rays from a single subject point should converge Put simply, the main objective of lens design is “to determine at a single point after passing through the lens. The image of a flat subject perpendicular to the optic axis should be contained in a plane behind the lens, The shape of a flat subject perpendicular to the optica should be accurately reproduced without distortion in the

A method of lens design used since the 19th century is a The colours in the subject should be accurately reproduced in the image. Although the above four requirements are “ideal” and can

In the mid-1960’s, Canon became the first company to

Since then, Canon has

methods is









































EF Lens Technology Constantly Pursuing the Best: Canon’s Lens Design Concept

(

)

Canon EF lens design fundamentals

Superior operability No matter how great a lens’s optical performance is, it must

To be able to offer EF lenses which satisfy the needs of all

High picture quality over the entire image area A lens cannot be said to have high picture quality if it

Silent operation Cameras and lenses have become increasingly noisy in recent

True colour reproduction characteristics uniform among all Reliability lenses To Colour reproduction (colour balance) is a Canon traditionensure and total reliability —— quality, precision, strength, shock

Natural blur effect These six design fundamentals are the backbone of modern While photographic lenses record three-dimensional subjects









































2 Development of High-Performance EF Lenses

1 —

Challenge to Create the Ideal Lens: Development

of

High-Performance

EF

( Actual EF lens design and development) processes

lenses

—

Optical lens design The development of an EF lens starts with careful listening Figure-1toshows the lens optical design process used by Canon the opinions and requests of actual EF lens users. While the requests of professional users are very important, the

Once the initial lens configuration is determined, a super-

Figure-1 Lens Design Process Flow (general design procedure)

Figure-2 Automated Lens Design Process Flow Computer operations Human operations

Design review

Design specifications

Focal length

Resolution

Determination of

Determination of lens type

Calculation of optical

X2 Radius of

f2 Chromatic aberration

X3 Number of elements X4 Shape of each lens element

Initial design

Ray tracing simulation

Construction factors

Aberration correction

| transmission | range | | Cost

Xn Tolerance values

| Distortion

|

| Aberration simulations

fn Manufacturing error analysis

Are all specifications

YES

satisfied?

NO

Creation of tables and

Completed











































EF Lens Technology Development of HighPerformance EF Lenses

Figure-3 Computer Simulation of Aberration Characteristics

with the movement of all groups linked to the zooming action

The next diagram, Figure-5, shows a minimum-element

Ray tracing by computer

Figure-4

Spot diagram

gradually progress toward the optimum design configuration

Figure-5 The automated design software used in this process was

Figure-8









































Photo-2 Actual Lens Barrel Design Example (Structure)

Photo-3 Actual Computer-aided Lens Design Example (Optical)

Once the final lens construction is

Lens barrel design Next, with this lens it is necessary to eliminate the aberration Now that design of the optical system is completed, the

The lens barrel must, in every conceivable situation, hol the lens elements in precise position according to the optical

Mechanisms must be positioned for superior operability. The size and weight should be appropriate for superior portability. The construction should be designed to ensure maximum mass production stability. The inner walls of the lens barrel should prevent harmful reflections. The barrel should be provided with sufficient mechanic strength, durability and weatherability. The factors listed below must be taken into consideration

An electronic mount and various electrical circuitry mus










































2

A construction which achieves both high-speed auto focus Eyes Fixed On the Future: Advanced and outstanding manual focus operation. Electronic Control System Design Incorporation of new actuators such as USM, EMD, and IS. Multi-group zoom design and rear and inner focusing lens designs. Selection of a new system with a view to the future Light weight, compact size, and low cost. Inmore the EOS system, why is rangefinding carried out in the camer Incorporating these factors has made lens barrel design body and lens drive carried out by a motor built into each lens? The answer goes back to 1985, when in order to respond to the

Since one motor must be able to handle the load of all types Thorough prototype performance checks and reliability of interchangeable lenses (which can vary in focus torque by as much as a factor of 10), system efficiency is poor evaluations an extender between the lens and body breaks After a prototype is made based on the design drawings, Inserting the the mechanical linkage used for transmitting AF drive power, impeding future system expansions. For a camera which must provide constant performance all types of environments from Arctic cold to tropical heat, In addition to these basic technological weak points, the in-

At present, even lenses in the highly-reputed EF lens group









































Fully-electronic interfaces All transfer of data between the body, lens, and flash is carried

Figure-12 Control System Basic Structure

Zoom motor

Flash microprocessor

Fully electronic mount system and data communications The key to the realization of fully electronic data transfer

Auxiliary

Information transfer between the body and lens is carried out

Battery

Data information

Data communication control Data information

Drive quantity detection

AE Sensor

Lens position information

Focus actuator

Image stabilizer unit

Send the specified lens data.

Main mirror Sub mirror Lens microprocessor

Zoom information

system AF sensor

AF ranging

Focal length information (zoom encoder) Electronic mount point (for data communication and power supply) Power supply

Primary data sent from the lens in response to command Main microprocessor

Battery

Table-1 Data Communication Content

Basic EOS system control structure The EOS system is centered around regular and digital

Purpose Type of information AF precision

AF control

AE control










































Advantages of the fully electronic mount system There is no need for the mechanical auto diaphragm Features of the large-diameter, fully electronic mount include linkage mechanism or aperture control mechanism in the the following:

Realization of quiet, high-speed, high-precision AF. Since the optimum actuator can be selected and incorporated in A lens operation self-test system using the lens’ built-in microcomputer (which displays a warning in the camera’s Realization of quiet, high-precision aperture control. By incorporating the ideal EMD in each lens, high-precision digital diaphragm control is realised. Since all control is carried out electronically, designers Built-in EMD allows the aperture to be closed down forgreat flexibility with regard to incorporating future new have checking the depth of field at the touch of a button. Moreover, Compatibility with new technologies and future system

The fully electronic aperture control system has permitted the development of TS-E lenses —— the world’s first lenses which tilt and shift with fully automatic diaphragm operation. Achievement of the large-aperture EF 50mm f/1.0L USM lens. (A feat only physically possible thanks to the largediameter EOS mount.) Realization of full-frame viewfinder coverage. (Virtually 100% coverage is realised in EOS-1 series cameras.) Elimination of viewfinder and mirror blockage with supertelephoto lenses. Photo-5 Electronic Mount — When using a zoom lens which varies the maximumBody Side aperture according to the focal length, aperture values which

Photo-6 Electronic Mount — Lens Side











































3 Sixteen Technologies Used in High-Performanc EF Lenses

1

Figure-13 Canon’s Polar Coordinate Conversion Measurement System

Transcending the Theoretical Limit of Spherical Lenses: Super-Precision Aspherical Lenses Receiver elements:

Most lenses used for photographic purposes are made by

Counter Find the amount of travel (δi) of the feelers from the electrical current

Laser interferometer Laser oscillator

Half mirror: divides and synthesises the laser beam

Fixed mirror

Laser beam Movable prism

Fixed prism

The difference between the reference sphere and the measurement lens (δi) is the aspherical amount. δi

performance of large aperture lenses,

Feeler: Converts the aspherical difference

Direction of

To remove these restrictions and realise lenses with even

Measurement lens Reference spherical surface

Angle scale Test object center of rotation

Canon started developing aspherical lens technology in the Establishment of aspherical lens processing system incorporating special grinding and uniform polishing technique











































EF Lens Technology Sixteen Technologies Used in HighPerformance EF Lenses

Figure-14 EF 85mm f/1.2L @USM Optical System - Ray Tracing Diagram

However, there were limits on the mass production of ground-

Aspherical lens

Figure-15 EF 14mm f/2.8L USM Optical System - Ray Tracing Diagram

Aspherical lens

Figure-16 EF/FD Zoom Lens: Size Comparison EF 28-105mm f/4-5,6 USM

New FD 35-105mm f/3,5

These glass-molded aspherical lenses are manufactured by











































Figure-20 EF 300mm f/2.8L USM Optical System

to Figure-16. The EF 85mm f/1.2L II USM in Figure-14 is designed with

UD lens

Fluorite

The ultra wide-angle lens in Figure-15 incorporates an

bring two wavelengths (such as red and blue) together at the

Figure-16 shows a comparison between a previous FD zoom












































Photo-12 Artificial Fluorite Crystals and Fluorite Lenses

Figure-21 Secondary Spectrum Residual chromatic aberration +

0

450

500

550

650

700 Wavelength (nm)

EF 600mm f/4L IS USM -

FD 600mm f/4,5

and bringing all three wavelengths-red, green and blue-

Figure-22 Comparison of Colour Aberration Correction Ordinary optical glass

Image quality improvement over total image area With telephoto type lenses using a front-convex/rear-concave power Fluorite

Blue Green Red Large colour aberration











































lenses. Today, the only SLR interchangeable Figure-24 lensesSurface Reflections with Non-Coated Glass incorporating fluorite are the EF lenses. 4.512 5

UD lenses The use of fluorite to improve the performance of super-

% 5%

Transmitted

light

90.25%

ht Incident lig

100%

Glass

This desire was finally satisfied in the latter half of the 1970’s Figure-25

Lens Light Absorption and Surface Reflection 100% Absorbed light

I n c id e n t li g h t

Fluorite and/or UD glass lens elements are employed in

50

0 400

Reflected light

Effect light (transmitted light)

500

600

700nm

Figure-26 Super Spectra Coating Characteristics (Reflectivity)














































Figure-27 Short Zoom Lens Construction (EF 28-80mm f/3.5-5.6 1st group (focus)

2nd group

%USM)

taken on colour film. To counteract this, surfaces which have

3rd group

All EF lenses are coated to original standards which are even 28mm

Through these exacting coating procedures, EF lenses featur













































Figure-29 Rear and lnner Focusing Systems design which is compact and low cost. There is little barrel distortion at the short focal length position. The 1st-group-focusing lens design allows focusing down EF 24-70mm f/2,8L USM Rear System to close distances. This type of design, however, presents a problem in that, if the ∞

0,38m EF 400mm f/5,6L USM Rear System ∞














































in improved rigidity. degradation occurs differs according to the lens type and Since the focusing ring can be placed in the optimum position for focusing, and since the ring does not move back and forth during focusing, superior balance can be achieved. The lens system can be made with a more compact design. The minimum focusing distance can be made shorter than with conventional focusing methods. Since the filter attachment ring does not rotate during focusing, superior operability is achieved with polarizing filters. Since the front frame does not move during focusing, not only can petal hoods with good hooding effect be used, but To ensure ideal aberration correction throughout the range of













































Figure-34 EF 300mm f/2.8L IS USM Flocked Parts to Eliminate Internal Reflections

Light blocking lines

Flocked area

Figure-35 EF 28-135mm f/3.5-5.6 IS USM flare cut moving aperture diaphragm

Anti-Reflection Construction Techniques In addition to use of special coatings and flocking, prevention














































AFD (Arc-Form Drive: circular deformation brushlessUSMs motor)still in the research and development phase, three types Coreless general-purpose DC micro motor Cored general-purpose DC micro motor Another type of actuator used in EF lenses is the EMD

9

Born With The EOS System: Advanced Ultrasonic Motor















































Figure-40 Rotor Rotation Due to Flexural Construction is extremely simple. seen that the tip moves Propagation of Waves Starting and stopping response and controllability are t=0
















































Photo-17 Micro USM (Left) Micro USM@(Right)

with each layer sandwiched above and below by metal vibrator















































Photo-18 EMD These five layers are incorporated into the base of the stator. If AC

Unit
















































The actual construction of the EMD (Figure-48) uses a manual stepping focusing originally employed an electronic focusing















































12

Microcomputer-Controlled Electronic Focus Preset

switch on the switch panel, the position of the focus lens at

















































EF Lens Technology

































































































EF Lens Technology

































































































EF Lens Technology

















































exclusively with refraction optical elements

more compact Figure-63completely innovative optical cancels , the zoom refractive elements out lenses, the chromatic which as power well. outperform of However, aberration each lens it fluorite, would element generated be UD, is in raised, the and difficult refractive aspherical and to employ thelens lens lenses. the group, elements dual-layered residual are placed chromatic DO lens closer used aberration together in the in is order to make suppressed to the extremely whole lens low more levels.compact, And since the diffractive chromatic aberration––particularly optical elements are also for characterised blue––degenerates by aspherical to a remarkab behavio degree. This spherical aberration means that is also inclusion efficiently of a diffractive corrected,optical achieving element willimage exceptional be insufficient quality with to compensate high resolution for the and chromatic contrast.







































light, even if the incidence shorter USM, light 300mm compensated entering the (142.8mm f/4.5-5.6 angle for the ofDO by DO → light 99.9mm) the IS lens USM entering triple-layered changes, lens. than the Below the no lens conventional DO unnecessary is (incidence lens an explanation placed angle) diffracted EF in 75front of is angle changes fixed light the of 300mm the processes is for forward generated, f/4-5.6 the most by IS lens. USM part. which and (Figure-65), almost Inthis zoom lens all lenses, of was which themade however, incident hascompact. only light because a refractive can be the angleas used optical ofelements, view photographic changes and itin light compensates accordance (Figure-66). for with any the remaining focal length, the incidence angle chromatic and spherical also undergoes aberration significant while achieving change.high With the conventional image qualityDO comparable lens, changes to that in the of incidence L lenses. angle would cause the generation of diffracted light that is not needed for




















































































































(Extremely 0.59 Yellow according involves creating to wavelength. vision byStarting stimulating from electric direction of indicates properties therefraction field of the of a and ray of a index medium aof magnetic medium, light of refraction changes vary expressed field according vibrate when of theby the chromatic is at a phenomenon index oflight refraction wavelengths whichto causes varywithin dependa portion the 10 VHF ultra-short wave) 0.55 Green 0.49 broadly Blueelectromagnetic optic the shortest nerves,wavelengths, and can be defined right the glass to the light formula angles with wavelength passes respect n to=each from sinofi/sin to other one light air. r. medium in “n” passing a plane is asuchof ing range asthe onlight of the 400nm wavelength, striking (purple) the surface thus to 700nm dispersing of glass (red). or 10 UHF 0.43 Violet as a type of radiation can electromagnetic be classified into wave. gammathrough perpendicular a constant vacuumthe which or air medium. to into isthe unrelated adirection different When light tomedium of the propaenters light the light. Within other medium this This range, is toalso break thesometimes difference off and propagate referred in index 0.38 SHFultraviolet 10 rays, X rays, light rays, visible gation. such ray’s a lensas angle or The glass prism, of two or incidence elements water, the dispersion or and of vice aindicates light versa. wave to an of in refraction as entirely colour dispersion. between new direction. two different The direction light rays, EHF infrared light rays, far-infrared which the refractive can actually index be ofdetected the refracting by the of wavelengths propagation isis called the same partial regardless dispersion. of light rays, microwave radiation, ultra medium human eye with arerespect the wavelength to the medium and wavelength. Most ordinary When optical light materials enters and have leaves 4 7

5 8

9







































points pass around of the spherical the edgessurfaces of an object on each anddiameter elements. optical angle the optical condition ataxis a of point Particularly axis and the of from is other group various inclined anthan in infinitely oflight zoom light at the a rays very lenses, rays optical far point. small of thein closing used diaphragm, group SLR the aperture cameras, i.e. of light the apparent rays causes referring passing its aperture to shape through a type seen toof enter side ofthe a lens. shadowed In other area words, of that theobject, optical which angle axis When passing point with these are through and constructed respect rays passes pass a to the lens. the lens through through ofCalculations optical several andadeterthe lens, axis. lens center they The are the lens. become diaphragm when looking polygonal. In interchangeable mechanism from the A circular front which of lenses remains the aperture lens, usedis caused axis is abecause hypothetical of thecenter wavelike linenaturemines groups point of converge performed oftheat diaphragm the that which inbrightness the using move paraxial shape in opening. powerful a of complex of rays athe cone Principal converge computers. subject to manner, formis acalled with single diaphragm, fully open the entrance during lens on reflex thefocusing pupil other cameras, and hand, and is equivalent this light. Diffraction connecting the center in a photographic of curvature of lens each extremely called light point image rays image the formed are paraxial precise within the onfundamental the lens focal thefocal barrel focal point. plane. plane. construction Since light The rays the mechanism optimises composition in meaningthe to istothe usually shape provide lens’ of constructed effective a the bright blades viewfinder aperture. as to an is known lens surface. for causing In photographic flare (diffraction lenses optical is necessary image used for formed aperture image toby maintain exposure a (also monochromatic called proper at allthe diaoptical effective iris diaphragm achieve image, The apparent but a nearly automatically aperture consisting perfect seen closes circle of several when even down looking blades to flare) which comprised ofoccurs severalwhen lens elements, light rays bend it is axis paraxial phragm aperture) of alignment. openings ray differs is in principle from fromthe maximum free realofaperture aberrawhich when the aperture considerably can besetting movedstopped necessary to continuously down for correct from vary aroundimportance utmost the edges offor thethe diaphragm. optical axis of tions, aperture of the the lensparaxial to inminimum that it ray depends isaperture. an important on the exposure the opening maximum when diameter. aperture. the shutter With Photography button conventional is Although each lens element diffraction to be flare perfectly tends to aligned factor in understanding diameter of the group ofthe light basic rays SLR camera with pressed a lens andthat automatically lenses, is equipped the aperture opens withis up a again appear when the diaphragm diameterpassing operation is through of lens the systems. lens rather than the adjusted circular when theaperture by exposure turning diaphragm is an completed. aperture achieves ring Although on a smaller than a certain size, it actually actual lens diameter. When a parallelconventional the lens barrel. beautiful blurlenses effect Withuse modern formechanical the background, camera depends not only on the diameter of the pencil of rays enters a lens and a group lenses, however, because linkages for thecontrolling point aperture source this adjustment is automatic circular.is diaphragm but also on various factors of these rays passes through the commonly controlled diaphragm operation,by EFoperating lenses use an such as the wavelength of the light, thediaphragm opening, the diameter of this electronic signals dial on for themore camera precise body. control. lens’s focal length and the aperture ratio. group of light rays when it enters the You can observe this instantaneous Diffraction flare causes reductions in front lens surface is the effective aperture stop-down operation by looking image contrast and resolution, resulting aperture of the lens. into the front of the lens when the shutter in a soft image. The laminated is released. diffraction optical elements developed by Canon control the direction of the light





































reference the image opticalside surface axis ofand theto diaphragm), the the diameter focal plane isof called the (film Flange along parallel the to back optical theis optical also axisreferred axis, froman theideal apex to as lens of the which parallel single-element lens is light therefore to the rays optical lens entering defined isaxis, theas distance the the the lens distance point parallel along on the exit pupil. entrance plane). Inpupil, theOf EOS the or the system, light angle raysflange between from aback the flange-focal rearmost will converge glass all distance. surface the light torays the focal to a single planethe toisthe along optical the optical optical axis axis from ataxis a from distance the from the center the focal equal lens’ ofplane the to lens the certainpoint image subject onpoint, the optical the effective axis and light the rays calledfrom point backwhich focus.the Wide-angle rays againlenses fan out with infocal side second to a itsconverge focal length principal point. measured onThis point the object center (rear backnodal side toward point ofpoint) ofthe the the which actually diameter of the form exit thepupil. image create a cone short a coneback shape. focus This cannot point at bewhich used on all SLR rayslens lens. to the is from focal called the point the focal is principal called point.the The point. focal principal However, length. of light rays with the subject point being the cameras that converge is called use athe mirror focalthat point. swings A up In simpler since point actual measured terms, photographic from the focal the front length lenses focal of consist apoint lens of point of the cone and the entrance pupil familiar before exposure examplebecause of this is the when lens a will is combinations the called distance the front of along several principal the optical convex point, axis and and from the being the base of the cone. At the other end obstruct theglass magnifying mirror is used movement. to focusWide-angle the raysprincipal the lens’ second concave lens point elements, measured principal it is point from not to visually the the rear focal of the lens, the light rays emerge in a coneof lenses the sun forto SLR a small cameras circle generally on a piece employ of focal plane apparent a point when where isthe called lens thethe center is focused rearofprincipal the atlens infinity. shape with the exit pupil forming the base retrofocus paper or other design surface; which the allows pointaatlong which back might be. of the cone and the point of the cone falling focus. the circle Theiscompact smallestsize is the offocal the quick-return point. In within the image plane. The entrance and mirror on optical terminology, the EF-S lens a focal compatible point is further digital exit pupils have the same shape as the classified SLR cameras as being makes theitrear possible or image-side to design actual diaphragm and their size is directly lenses focal point like if the it is dedicated the point EF-S at which 60mm light f/2.8 proportional to that of the diaphragm, sorays Macro from USM, the EF-S subject 10-22mm converge f/3.5-4.5 on the film USM, even if the construction of the lens system EF-S plane is 17-55mm side of thef/2.8 lens.IS It USM is the front and EF-S or 18not known, it is possible to graphically 55mm f/3.5-5.6 II USM lenses with a illustrate the effective light rays which shorter back focus than in other EF lenses. actually form the image as long as the positions and sizes of the entrance and exit





































formed principal Figure-12-A front of the by points frontmost arefracts, lens is called that passes lens isthe sharp. element, through principal and n and sensorcan which calculated always aofsmall EF-S by be dividing reproduced decimal compatible the value lens’ bydigital the less effective lens than SLR aslight square are resolution a many rays of from cases the of aFlens’ an number, where infinitely optical only meaning system. far thesubject maximum that Thethe point n’ with Interchangeable and retrofocus interval. arrives at b. type When lenses lenses this forh’ occurs, 35mm is positioned cameras. sharp aperture one and image. therefore (D) by The its focal nominal difficult length diagonal to use (f). Since angle image becomes aperture numerical converge value after aperture, passing deviates darker usually through as from the indicated this Fa number lens. series.) as The similar to format the rear angles cameras of are themust generated rearmost have between lens an image element. a-n of view the practically, value iscalculated defined lens brightness asfrom the angle D/fis isoften almost formed by increases. The NA, plane is numbers perpendicular a numerical F number in this value series, to values the calculated optical which are expressed may axis from at and n’-b circle atwith least respect as large to the as the optical diagonal axis, expressed imaginary always of a small lines for convenience’ decimal connecting valuethe less sake lens’ than as the I which as aformula first the geometrical seem contains difficult nsinthis θseries , where to point become starting is 2θcalled isfamiliar the atthe angle 1 with focala and24 the points x 36mm h andimage h’ can be area. defined EF lenses as second and inverse therefore principal of thedifficult aperture pointtowith ratio use practically, both (f/D), ends which of it common with, (angular plane. is merely In aperture) this ratio indicate plane, of √at which which values isan where which object the are point where these therefore generally angles intersect have anthe image optical circle the is called common image the F diagonal tonumber. express (43.2mm). Accordingly, the aperture Lens ratio image data on close on film the orto optical the theimage actual axissensor enters FD values isthe positioned entrance based oninthe a axis. of about These 43.2mm points, h diameter. and h’, are TS-E principal lenses, for EF the lens lenses barrelgenerally as the ratio includes of the effective the camera, diameter pupil andthe n (D) issubject the of each index issuccessive sharp of refraction and diaphragm saidofto be points indicating however, are designed the lenswith reference a larger aperture horizontal to(36mm) the focalangle length, ofwith viewthe and “in setting the focus.” medium which With indecreases which general thephotographic object the amount exists.of positions image circle withof respect 58.6mm to the to subject cover the and effective vertical (24mm) apertureangle set equal of view to 1.in(For addition light passing Although lenses consisting notthrough often of several used the lens lens with byelements, half. image.tilt lens’s h isand called shift themovements. front principal EF-S pointexample, to the diagonal the EF 85mm angle of f/1.2L view. II USM lens Thus, photographic the focus changing can be lenses, the adjusted F the number NA so that value from light is1.4 rays to (or firstfeature lenses principalapoint) smaller and image h’ is called circle the barrel is imprinted with 1 : 1.2, indicatingcommonly 2 halves the imprinted image brightness, on the objective while going rear principal than other EFpoint lenses, (or second to match principal the that the focal length is 1.2 times the effective the other lenses of microscopes, direction from where 2 to 1.4 it isdoubles used point). In general photographic lenses, the aperture when the effective aperture is more the image as anbrightness. indication of (Aresolution change ofthan this of distance from h’ to the focal point (focal equal to 1.) The brightness of an image brightness. magnitude is A generally useful relationship referred to know as “1 plane) is the focal length. Depending on produced by a lens is proportional to the is stop”.) that the With NArecent value is cameras equal toemploying half the the lens type, the front-rear relationship of square of the aperture ratio. In general, lens electronic inverse of the displays, F number. smaller For example, divisions of 1/2 the principal points may be reversed, or h’ brightness is expressed as an F number, F stop 1.0or = NA even 0.5, 1/3 F 1.4 stop = NA are 0.357, used. F2 = NA may fall outside of the lens assembly which is the inverse of the aperture ratio0.25, and so on. altogether, but in any case the distance (f/D). F number





































of depth depth 2 2 Point the Permissible Circle ofImage plane appears of spherical as aand aberration “point” in the and image. astigmatism, subject depth in which which ofthe the field image photographed =depth d·F·a can /(f image d·F·a) regardless lens hyperfocal the proximately EF is gradually 20mm of distance, 0.7m/2.3ft, the lens focused the focal all depth to subjects length. farther of field With within will focus ofRear field in of be focus — Confusion and Depth of Field they cannot sharpness asperfectly sensed byconverge the human rays eyefrom isphotographed appears f:afocalsharp. length as InF: other a sharp F number words, image. d: theminimum Depth depth modern subject extend f/2.8 a of range of USM from of distances, autofocus approximately is a set distance SLR a point cameras, equal 0.4m/1.3ft will toeventually half focusing from the subjectrelated closely point to toform the sharpness a true image of the pointfocus sharpness circle is the of to confusion same the front on both diameter and sides rear of ofthe the the is performed be hyperfocal to f/16 reached camera and the distance where tobyinfinity detecting the to will infinity. far the limit be state in This of focus.) the of (i.e., animage actual infinitely and the small “resolution” dot with zero of area). subjectplane image where (focal image plane) blur in and thecan focal be shooting focusdepth rear method in the is useful of image field for plane will presetting be (focal equivalent plane) a largeto In othereyesight. human words, images In photography, are formed image fromdetermined plane a falls within by multiplying the limits of the the minimum using aofsensor “infinity.” depth distance field isThe setand which shooting taking is both distance snapshots optically at this compositeis sharpness ofalso dots dependent (not points) onhaving the degree a permissible circle of confusion. Depth ofwithout equivalent point, i,e., having the (1:1closest magnification) to worry shooting about and adjusting distance certain of imagearea, enlargement or size. Since or projection the image field varies according to the lens’ focal the positioned at which lens focus, “infinity” out of especially the falls focal within when plane, the using and depth a becomesand distance lessthe sharp distance as thefrom sizewhich of these thelength, aperture value and shooting automatically of w ifield, d e - aisncalled g l econtrolling the hyperfocal the lens distance. to bring dots increases, image is viewed.the In other dots are words, called in “circles distance, so if these values are known, aThe the subject hyperfocal image distance within the candepth be of of confusion.” practical work Thus, it is possible one way to determine of indicating rough estimate of the depth of field can be focus area. as follows: determined the quality certain “allowances” of a lens isfor byproducing the smallest images dot calculated using the following formulas: it can form, which, although or itsactually “minimum blurred circle to a of confusion.” certain degree, Thestill maximum appear sharp allowable to thedot size in an image observer. For 35mm is called single the lens “permissible reflex circle of confusion.” cameras, the permissible circle of confusion is about 1/1000~1/1500 the length of the film diagonal, assuming the image is enlarged to a 5”×7” (12 cm× 16.5 cm) print and viewed from a distance of 25~30





































the front or back. Chromatic aberration wide-angle, light rayslens from zoom a single and telephoto subject point lenses). graphic expression, a would lens should have exhibit the following trueare colours uniformly mixed so that the eyeto aberration” noticeable ration ration determined all lenses for for two three when (since through wavelengths wavelengths using it occurs analysis entirely colour of laterally the light. film, of oflight, spherical existence itWhen with Occurrence of a constructed halo–––The image becomes flare. Astigmatism not The formed general interm the image used to as describe a perfect the point. characteristics: colour reproduction. If only light rays does not sense any particular colour and respect affects referring with of elements. five aberration lens black-and-white to to Spherical aberrations the a photographic optical reduced aberration axis). which images to lens, a occur large as causes the well, with two Curvature of field (A difference problem between unavoidable an ideal with image spherical and the Distortion entering the lens close to the optical axis thus perceives the light as white) such as appearing corrected degree monochromatic parallel particularly light wavelengths asrays a reduction (single passing in the are wavelength) through in secondary insharpness. the bluethe light. surfaces.) actual image affected bymonochromatic the above factors are used and the light is sunlight is passed through a prism, a edge violetof spectrum. These range aberrations, a lens EF and to super-telephoto converge yellow described range. at abelow, focal lenses point are are is “aberration.” Thus, to design a high(one specific wavelength), it is possiblerainbow to spectrum can be observed. This examples called closer to the the five oflens apochromatic aberrations than light rays oflenses. Seidel. passing performance lens, aberration must be phenomenon occurs because the prism’s realise virtually ideal lens performance. through the center of the lens. (The extremely small, with the ultimate With real photographic lenses, however, index of refraction (and rate of dispersion) amount of focal point shift along the objective being to obtain an image as varies depending on the wavelength (short where a large aperture is used to obtain optical axis is called longitudinal spherical close as possible to the ideal image. sufficient brightness and the lens mustwavelengths are more strongly refracted aberration.) The degree of spherical Aberration cannot be broadly divided into than long wavelengths). While most aberration tends to be larger in largeconverge light only from near the chromatic aberrations, and monooptical axis but from all areas of the visible in a prism, this phenomenon also aperture lenses. A point image affected by chromatic aberrations → Chromatic image, it is extremely difficult to satisfyoccurs in photographic lenses, and since spherical it aberration is sharply formed by aberration → Five aberrations of Seidel the above-mentioned ideal conditions due occurs at different wavelengths is called light rays near the optical axis but is to the existence of the following chromatic aberration. There are two types affected by flare from the peripheral light obstructive factors: of chromatic aberration: “axial chromatic rays (this flare is also called halo, and its aberration,” where the focal point position radius is called lateral spherical on the optical axis varies according to the aberration). As a result, spherical wavelength, and “chromatic difference of magnification,” where the image





































phenomenon from the center visible to theinedges, the periphery and produces of lens an at an angle to converge in the formcomatic center. of Coma aberration, increases a subject as thepoint angleon of the a soft, low-contrast image produced byimage a lens which whichhas looks been as a comet instead of the desired point, hence principal optical axis ray will increases, be correctly and causes reproduced a as if covered with corrected for spherical a thin veil. aberration, Correction and of the name. The comet shape is oriented a decrease point in the in contrast image, but near an the off-axis edges of the spherical aberration in spherical lensesradially is with the tail pointing either image. Apoint subject certain willdegree not appear of improvement as a point in is very difficult. Although commonly carried toward or away from the center of the the possible image, bybut stopping ratherdown as anthe ellipse lens. orComa line. out by combining two lenses –– one image. The resulting blur near the edges can also This typecause of aberration blurred areas is called of an astigmaimage convex and one concave –– based on light of the image is called comatic flare. Coma, to flare, tism, It isresulting possiblein toan observe unpleasing this pheeffect. rays with a certain height of incidence which can occur even in lenses which nomenon The elimination near the of both edges spherical of the image by (distance from the optical axis), there is correctly a reproduce a point as a point on aberration slightly shifting and coma the lens forfocus a subject to a at position a limit to the degree of correction possiblethe optical axis, is caused by a difference certain shooting distance is called using spherical lenses, so some aberration in refraction between light rays from anaplanatism, and a lens corrected as such is always remains. This remaining off-axis point passing through the edgecalled of an aplanat. aberration can be largely eliminated by the lens and the principal light ray from stopping down the diaphragm to cut the amount of peripheral light. With large aperture lenses at full aperture, the only effective way to thoroughly compensate spherical aberration is to use an aspherical lens element. → Aspherical lens





































focusing as a line oriented on a flat in surface, a direction the image radiating does at the that “the same image timeof is the Petzval’s subject condition and the height shortest tries meridional graphs toof capture that focal entry plane accompany lengths above a point is called the and outside axis test the pincushion entering report sagittal the optical the from not become the image flat,center, but where and the again image to isimage (1843).formed This condition by the lens is that arethe similar,” inverse and distortion axis plane, articles lens of and system and the inat this camera (distance optical the islongest theaxis magazines. image above is focal called plane the lengths diagonal awhere (the anotherin formed position. a bowed shape to the inside of the product deviation offrom the index this ideal of refraction where the forthe distortion meridional radial image characteristics plane. isThe at its position best. change The linked word slightly to the bowl. Therefore, when focusing on straight each the of the lines single are lenses bent isof called the lens distortion. during the comes focal from zooming), point theby Greek the butlight in word zoom ray for entering lenses arrow. that center of the frame, the circumferenceThe configuration is extended and shape theinfocal the diagonal distance added view use an through The name aspherical a lens comes of this from lens, shape the theshape aspherical is called of the the lens blurred, and conversely, when focusingangle with on the direction number(+) of single is called lenses pincushion used infocal is effective meridional point,at image which removing spreads plane.distortion, This radially. is theso The image the the circumference, the center is blurred. the lens configuration distortion, and, conversely, must produce the contracted a position correction plane where linked isthe good. toimage the This focal of difference concentric point of a islight This image bending is mainly changed shape sum of(—) 0. This is called sum isbarrel calleddistortion. Petzval’s sum. With caused circles ray thatin by passes the theframe difference through are at ain the sagittal refraction best.plane If the of using the astigmatism correction method, an ultra wide-angle lens, rarely do bothshape the spherical of principal andsurface into rays a lens of passing the is called lens through isthe compared sagittal the which creates an image between a sagittal these distortions exist together. Although center to image a portion plane, of theoflens, and the when earth’s so it cannot the curvature characteristics be and if image and a meridional image, so the this seldom occurs in lenses where the of improved the this optical image no axis matter plane is compared are how expressed much to the theusing earth’s a more the astigmatism is corrected, thelens combination configuration is at the aperture axis, MTF the characteristics meridional is stoppedplane down. graph, would etc., be it iswhere often smaller the image becomes. Because there aperture boundary, it occurs easily in abbreviated the earth’s meridian using the is,initial which“S.” is why this is almost no corrective effect from configuration lenses. Typical zoom lenses name is used. The curve that expresses the stopping down the lens, various efforts are characteristics of this image plane using a made during designing, such as changing MTF characteristics graph, etc., is often the shape of the single lenses of the lens abbreviated as “M.” configuration and selecting the aperture position, but one of the requirements for





































horizontal of incidence incidence axis (distance (distance shows the from from image the theimage image point scale percent generally computers (%) show distortion. barrel to perform distortion The curve mind-boggling atindicates wideconsideration capacity of reproduction given toeffect achieving of a subject a point Axial colour aberration Center and edges Slight offset captured center) center; of unit: themm) ray byentering of the the film ray surface the entering lensshape. system, the the angle calculations difference positions and between and high-level pincushion the simulations ideal distortion image pleasing of to the lens. blur The effect resolution (image of characteristics the final Magnification colour aberration Edges No effect The the and unithorizontal is mm. Theaxis horizontal is the amount axis of minimise and at telephoto the actual all types positions. image of aberration formed at the andfocal outside photograph the image depends formation on three plane) factors: by the Spherical Center and edges Effect present symbols shift of the are image “—“ (minus), point formed which inshows the the plane. achieve Aaberration superior minus sign image indicates formation negative, using resolution or computer of thesimulation lens, the resolution techniques of the to subject’s focal plane. side Units direction, and signs andare “+”the (plus), sameperformance. barrel, distortion Even where with the thislength technology, of the analyze film or image lens performance sensor, the at the resolution design of Comatic aberration Edges Effectand present which as in the shows spherical the film’s aberration side direction. curve. The The diagonal however, of it is the impossible actual image to completely is shorter stage. the printer As mentioned or printing in paper. the various Resolution is Astigmatism Edges Slight effect ideal lens curve for an characteristic ideal lens would is forbe the a straight horizontal than theall remove diagonal aberrations, of themeaning ideal image. thatAall aberration evaluated by descriptions, photographing, the effects at a specified of some Curvature field market Edgesaaberrations can be Slight effect axisat line zero thepoint horizontal to form axis’ a straight zero point line with plus lenses sign onofindicates the positive, still have orat pincushion, least minimised by stopping the entry respect toheight. the height Theof difference incidence. between The small distortion. amount An of ideal aberration lens would remaining. exhibit cannot. The Distortion Edges down the lens, while Noothers effect this ideal and difference between the actual the ideal lens is lens shown andasThis a aberration is called residual relationships between aperture and Ghosting/flaring Center and edges No effect curve. lens actual Spherical is indicated distortion by two correction curved lines isaberration. The type of residual aberration aberrations are shown in Table 2. in peripheral illumination Edges Effect present generally in the S direction said to be (sagittal/radial good if there direction) is a core inDrop a lens generally determines the lens’ in the and Mimage direction and(meridional/concentric the focal point moves imaging characteristics such as its little when circle direction). the lens If the is stopped difference down, between in sharpness and blur effect. Because of this, other S and words, M (astigmatic there isdifference) slightly insufficient is large, a correction point will not in the be formed middleas area a point while and at the maximum the image will entry smear. height Moreover, there is perfect the blur correction image in front where of and it returns behindnearly the image to zero. formation plane will be unnatural.





































forming subject forming different of as black a numerical and brightness white value stripes such levels as that in50 agradually photograph, lines or performance low. In general, evaluation lenses producing method used high to overall this lens book canimage. be place extracted Because imagefrom height of this, the (with MTF for the the chart EF lights (exiting) (incoming) lights (exiting) decrease 100 i.e., the lines. difference in This narrowness, value inindicates brightness thenthe using between number a determine quality images the contrast have both reproduction high resolution ratio, lens image as follows: MTF center characteristics The having closeran the image 10-line/mm presented heightinofthis 0) microscope of light lines and per dark millimeter toareas. observe For ofthe the example, negative smallest when image and or sharpness, high contrast. of a lens. When evaluating book, on curve thetwo is horizontal totypical 1, the better axis spatial and the frequencies contrast contraston and (10 the at areproduction black the magnification and white line ratio of pattern 50x. between which white can be and the electrical characteristics of audio separation lines/mm vertical axis. and ability MTF 30 lines/mm) of characteristics the lens, are and selected the are clearlyisrecorded black clear, contrast on theis film. said Tototest be high, the equipment, one important measure of closer and sophisticated provided thefor 30-line/mm spatial computer frequencies curve is simulation toof 1, 10 the resolution of a lens alone, a method is performance is frequency response. Inbetter techniques lines/mm this theand resolving are 30 used lines/mm. power to determine and Thesharpness test the MTF used in which a fine resolution chart is case, where the source sound is recorded characteristics chart’s of the lens. spatial Additionally, frequency, of the entire the lens closer image aperture the area, positioned in the location corresponding through to a microphone and then playedcharacteristics graphed value andwith direction the ofhorizontal Min and theSimage are, axis the area more are the focal plane and projected through the back through speakers, frequency corresponding as natural shown theinbackground thetofollowing the distance blur table. becomes. from the test lens onto a screen. The numerical response indicates the fidelity of the Although center of the a good image balance alongbetween the diagonal these value used for expressing resolving power reproduced sound with respect to the characteristics line, and the vertical is important, axis corresponding it can to is only an indication of the degree of source sound. If the reproduced soundgenerally contrast. is be assumed that a lens will resolution possible, and does not indicate very close to the source sound, the provide excellent image quality if the 10resolution clarity or contrast. equipment is classified as “hi-fi,” or “high line/mm curve is greater than 0.8, and that fidelity.” By thinking of the optical system satisfactory image quality can be obtained of a lens as a “system for transmitting if the l0-line/mm curve is greater than 0.6. optical signals” in the same way as an Looking at the MTF characteristics of EF audio system transmits electrical signals, super-telephoto it L-series lenses with this is possible to find out how accurately frame of reference, it is obvious from just optical signals are transmitted as long as the data that these lenses possess the frequency response of the optical extremely high-performance imaging system can be measured. In an optical characteristics. system, the equivalent of frequency is “spatial frequency,” which indicates how many patterns, or cycles, of a certain sine density are present in a 1 mm width. Accordingly, the unit of spatial frequency is lines per mm. Figure-27-A shows the MTF characteristics of an ideal “hi-fi” lens for a certain spatial frequency, with the output equal to the input. A lens of this

subject (incoming)





































0.9 photograph depends on threeCanon. factors:The the taken through a lens compared to the lens manufacturers including axis position, edges states that of the light picture i.e., fall-off at the area incenter peripheral are partially of the areas colour characteristics ofreference the film orvalue digital original subject. Colour balance in all EF resulting recommended image. blocked of ofthe image The by the brightness increases lens frames as (image theinangle front surface of of 0.8 system, themanufacturers colour temperature of behind lenses is based on ISO recommended imaging 0/5/4 is used by film as a view illuminance) and increases, the at diaphragm, even the edge if theoflens the preventing is image is 0.7 the light source illuminating the subject,completely reference values and maintained within reference a when designing the colour called all the peripheral rays free from of passing illumination vignetting. through The and periphthe is 0.6 and the light transmission characteristics of strict tolerance range narrower than ISO’s production characteristics of colour films. expressed effective eral In image aperture is asformed a percent (diaphragm by groups (%) of the of diameter) light 0.5 B:Contrast is good and resolving power is bad the lens. The if colour contribution index, rays or causing CCI allowable value range.→ CCI other words, the light transmission amount and entering of illumination light the lens fall-off atat a in certain the the image angle 0.4 CCI, is an index indicating “the amount of characteristics of a lens do not match thewith center. peripheral respect Peripheral areas to theofoptical illumination the image. axis, and This is the type 0.3 colour variation causedthe by colour filtering effect ISO reference values, affected of amount vignetting of bylight lens can fall-off vignetting be eliminated is proportional and the by cos4 to differences between lenses” when using a 0.2 reproduction characteristics of a colour film (cosine stopping the cosine 4)down law of that and the angle islens. inevitably raised tolower the standard and light source, and is than the center of the image.→ 0.1 cannot befilm obtained as intended by the expressed by three numbers in the form manufacturer. Vignetting, Cos4 law 0/5/4. These three numbers are relative values expressed as logarithms of lens transmittance at the blue-violet/green/red wavelengths corresponding to the three light sensitive emulsion layers of colour C:Resolving power is good and contrast is bad film, with larger numbers representing higher transmittance. However, since photographic lenses absorb most ultraviolet wavelengths, the blue-violet transmittance value is usually zero, so colour balance is judged by comparing the green and red values to ISO-specified reference lens values. The ISO reference lens light transmission characteristics were set according to a method proposed by Japan which involved taking the average transmittance values of 57 standard lenses





































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light propagation Extension amount Length, Extension Amount (Overall certain can straight front lens more be group group lens broadly lens backward groups groups rotates moves elements classified positioned positioned to straight and move inforward accordance into the backward between behind the front when five group with the and the subject. point optical lens subject barrel tosystem size the Theto focal and position the backward the plane subject. size ofwhen the ofand the An focal the important image forward plane lenspoint iswave, the ispolarized image itlight) can compared be thought to the of point as actual uniformly (natural direction Principal intervalsubject. interval Extension) and Magnification Shooting distance types focusing forward backward front diaphragm. the extension lens described during isand group carried → amount P forward .177 focusing. and below. out. the inThis during order Examples diaphragm. is the focusing. to comsimplest of reproduced indicated focused during factor especially focusing, onon aon subject thefilm. top the when A of at amount macro most ashooting certain cameras lens of distance. lens closewithby avibrating (For a example, in alladirections magnification in a plane of 1:4 is Subject size Subject size on the type type front This pensate of group focusing for of aberration focusing linear used extension is inused fluctuation mainly only lenses inin widecaused zoom aremagnification “the ”symbol. movement ups and enlargements. necessary indication to focus of 1:1 can a subject expressed as 0.25x.) perpendicular to theMagnification direction offilm plane angle EF lenses by camera 50mm through andf/2.5 distance. is not standard Compact found This insingle Macro, single method focal focal is also length at a limitedan reproduce distance image on from filmthe theinfinity same size propagation. This type of light is called lenses,lenses. MP-E length referred Such 65mm to asas aRepresentative f/2.8 close-distance the EF Macro 15mm Photo f/2.8 examples aberration and as focus of the position. original subject (actual size). natural light (or natural polarized light). If Fisheye, EF lenses compensation 85mm using lense, f/1.2L this mechanism. the method II EF USM. 50mm are→the f/1.4 P.177 EF USM, 28-Magnification is generally expressed as the a direction of vibration of natural light the TS-E 90mm f/4-5.6 90mm III,f/2.8, EF 75-300mm and other EF f/4-5.6 lenses. IS becomes polarized for some reason, that USM and EF 90-300mm f/4.5-5.6 USM light is called polarized light. When and other EF lenses.





































(Complementary of vibrational the image glass same data oras water, locus into a linear an for ofMetal-Oxide electric the polarizing example, lightsignal, allowed the filter Semiplaying as toit variations digital of an object’s cameras, in light shape. RGB into Expressed or electric CMYGsignals. colour as a The power of having bundles the an infinitely eye in normal leaving order to focus to distant vision the form decreases viewfinder can an point image observe is asformed converge a ofperson an an reflected pass only the conductors). role passes through oflight the light the Both film vibrates vibrating filter in are a is regular in area linear one in sensors adirection certain film in nature, higher the value information numerical number is collected which of receptors, indicates for each the receptor themore object on to in becomes object or front the disperse. therear on retina without ofthe older. the ofThe retina. when the retina straining. In standard retina camera the The when eye when state This diopter terms, the is in the distance eye which the this eye of isall in is is the is onlyfilter the direction. camera. containing and Also isHowever, completely called a known large a linear number the aspolarized. an light polarizing imager. of passing receptors Also, The filter. on accurate arranged inverse ofthe on thethe image minimum surface. reproduction visual This means angle is. Since at that eyethe accommodation in the similar normally EOS is accommodation cameras at accommodation to itshaving assumed minimum is set a rest fixed at to refractive rest —1 state. be rest focal dpt. 25 state. state. cm/0.8 point This powerft. is a sunny This through two most type day aof common circular filter the light eliminate polarizing image fromelements the reflections filter area differs of used the these receptors when which light the eye with can aare high clearly only spatial sensitive distinguish frequency to two calleda the with setting shallow is designed accommodation depth to allow of field. rest the finder state. sky from in digital atlight glass a 90° cameras passing and angle water from through arethe CCD the same sun a(Chargelinear becomes way as apoints brightness hits a single or lines, and pixel, i.e. notfalse the colour, resolution colours, RGB or moiré, ofCMYG the image eye and to appear to be seen from a polarized circular polarizing Coupled polarizing due filter toin the that filter, effect the but of vibrational it air cannot molecules be colour other in reference colours filtersto are which a resolution placed do not before exist of 1’.them in (Ratio theindistance of 1 m. Thus, if a person and particles used locus effectively rotates in a the with spiral atmosphere. most pattern auto as exposure The it halforderato subject with resolution appear capture inboth the of 1’ image. brightness assumed In order as and 1.) tocannot see the viewfinder image clearly, mirrors and propagates. autofous usedThus, in cameras autofocus the effect as itSLR will of cameras the cause filterreduce colour data the occurrence at the same oftime. these types ofthe person should attach to the camera’s also cause exposure does not interfere errors light in polarization. with AE cameras the effect equipped of halffalse colours, the light must made to enter eyepiece a dioptric adjustment lens with TTLallowing mirrors, meteringnormal systems operation using halfof many different receptors, and in order having to a power which, when added to mirrors,and TTL-AE andAF will functions. cause focusing When errors using ado in that, the receptors used are low-pass the viewfinder’s standard diopter, AF cameras polarizing filter incorporating with an EOS AF camera, range- be filters. Low-pass filters use liquid crystal makes it possible to easily see an object finding sure to always systems use using a circular half-mirrors. polarizingand other crystal structures which are at one meter. The numerical values filter. The effectiveness of a circular characterised by double refraction (a printed on EOS dioptric adjustment polarizing filter in eliminating reflectedphenomenon where two streams of lenses indicate the total diopter light is the same as that of a linear refracted light are created), placed before obtained when the dioptric adjustment polarizing filter. the image elements. By double-refracting lens is attached to the camera. light with a high spatial frequency using low-pass filters, it becomes possible to receive light using multiple elements.





































o off 0.8 0.6 or more at 10 lines/mm indicates a superior satisfactory lens. image.





































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EF 180mm 14mm f/2.8L f/3.5LUSM Macro USM MP-E EF 20mm 65mm f/2.8 f/2.8 USM 1-5 x Macro Photo TS-E EF 24mm 24mm f/1.4L f/3.5L USM TS-E EF 24mm 45mm f/2.8 f/2.8 TS-E EF 28mm 90mm f/1.8 f/2.8 USM Extender EF 28mm EF f/2.8 1.4

x@

Extender EF 35mm EF f/1.4L 2 x@USM EF 16-35mm 35mm f/2 f/2.8L USM EF 17-40mm 50mm f/1.2L f/4L USM EF 20-35mm 50mm f/1.4 f/3.5-4.5 USM USM EF 24-70mm 50mm f/1.8 f/2.8L @ USM

10-13 15-20 9-11

32~45 22~27 22~32 22-36 22 32

74°·53°·84 5°10’·3 °15 74 (without °·10 ·53 °30’·6 °·18 ·84 tilt °°10’ or shift)*1

12-19 10-15 9-11

22~27 22~36 22~32 16 32 22

D istance 0.45/1.48 0.48/1.6 0.25/0.8 0.28/0.9 (m/ft) 0.48/1.6 0.38/1.3 0.25/0.8 0.34/1.1

156 °40’·10 °50’·4 84°·14 20 ·62 °35’·8 35’·18 °·24 ·94°°15’ °40’ 44°·30°·51 5°10’·3 °15 74 (without °·10 ·53 °30’·6 °·18 ·84 tilt °°10’ or shift)*1

12-18 12-17 10-10

)*2~45 38(22~32 22~36 3632 22 16

)/1.6(Macro) 0.5(Macro 0.38/1.3 0.25/0.8

22°37’·15°11’·27 5°10’·3 65°(without ·46 °30’·6 °·75°°10’ tilt or shift)*1

9-13 9-11 9-10

)*2~45 38(22~36 3632 22

0.45/1.5 0.25/0.8

65 4— °°·2 ·46 °45’·5 °··75 — °° ·—

9-13 9-11 5-5

22~32 22~36 16 22

0.45/1.5 0.25/0.8

3°30’·2 54— °·38 20’·4 °··63 — °°10’ ·°—

7-10 9-11

22~32 22 32

0.7/2.3 0.3/1.0

98°~54°·7454 °40 10’~38 °·38 °·27 °·63 °·46 °·108 ° ° °10’~63°

9-13 5-7

22

1.2/3.9 0.3/1.0

93°~49°20’·70 40°°30’~34 ·27°·46°°·104°~57°30’

9-13 6-8

32

0.25/0.8 1.4/4.6

84°~5440 °·62 °·27 °~38 °·46 °·94 ° °~63°

10-13 6-7

32

0.45/1.5 1.5/5.0

74°~29°·53 40°·27 ~19 °·46 °30’·84 ° °~34°

14-17 5-6

32

0.45/1.5 1.2/3.9

7-8

32

0.45/1.5 1.2/3.9

74°~24°·53°~16°·84°~28°30’

EF 24-85mm 85mm f/1.2L f/3.5-4.5 @USMUSM

74°~19°20’·53°~13°·84°~23°20’

7-9

32

0.95/3.1 1.5/4.9

EF 24-105mm 85mm f/1.8f/4L USM IS USM

65°~22°40’·46°~15°10’·75°~27°

6-8

32

0.85/2.8 1.5/4.9

EF 28-90mm 100mm f/2f/4-5.6 USM@USM

65°~22°40’·46°~15°10’·75°~27°

8-10

32

1.5/4.9 0.9/3.0

EF 28-90mm 135mm f/2L f/4-5.6 USM #

65°~19°20’·46°~13°·75°~23°20’

6-7

32

1.5/4.9 0.9/3.0

EF 28-105mm 135mm f/2.8 f/3.5-4.5 (with Softfocus) @USM

65°~19°20’·46°~13°·75°~23°20’

7-9

32

1.5/4.9 1.3/4.3

EF 28-105mm 200mm f/2.8L f/4-5.6 @USM USM

65°~19°20’·46°~13°·75°~23°20’

13-17

32

1.5/4.9 1.5/4.9

EF 28-105mm 300mm f/2.8L f/4-5.6 IS USM

65°~15°·46°~10°·75°~18°

11-15

32

65°~10°·46°~7°·75°~12°

13-17

EF 28-135mm 300mm f/4Lf/3.5-5.6 IS USMIS USM EF 28-200mm 400mm f/2.8L f/3.5-5.6 IS USM USM EF 28-200mm 400mm f/4 f/3.5-5.6 DO IS USM EF 28-300mm 400mm f/5.6L f/3.5-5.6L USM IS USM

1.5/4.9 2.5/8.2 )/4.9(Macro) 1.5(Macro 1.5/4.9

65°~10°·46°~7°·75°~12°

13-17

1.8/5.9 3/9.8

65°~6°50’·46°~4°35’·75°~8°15’

6-7

3.5/11.5 0.2

36°~10°·25°~7°·43°~12°

13-17

3.5/11.5 0.24/0.8

EF 55-200mm 500mm f/4Lf/4.5-5.6 IS USM@ USM

29°~10°·19°30’~7°·34°~12°

13-17

4.5/14.8 0.35/1.2

EF 70-200mm 600mm f/4Lf/2.8L IS USM IS USM

29°~10°·19°30’~7°·34°~12°

8-9

5.5/18.0 0.35/1.2

EF 70-200mm 50mm f/2.5f/2.8L Compact USM Macro

29°~10°·19°30’~7°·34°~12°

3-4

0.23/0.8 0.28/0.9

EF 70-200mm f/4L USM

29°~10°·19°30’~7°·34°~12°

8-12

0.24/0.8 0.28/0.9

EF 70-200mm f/4L IS USM

29°~6°50’·19°30’~4°35’·34°~8°15’

12-14

0.31/1.0

EF 70-300mm f/4-5.6 IS USM

29°~6°50’·19°30’~4°35’·34°~8°15’

8-10

0.48/1.6

EF 70-300mm f/4.5-5.6 DO IS USM

27°~6°50’·18°11’~4°35’·32°11’~8°15’

9-11

0.24/0.8

EF 75-300mm f/4-5.6# USM

27°~6°50’·18°11’~4°35’·32°11’~8°15’

9-10

0.3/1.0

5-6

0.4/1.3 0.5/1.6

EF 75-300mm f/4-5.6#

25°~10°·17°~7°·30°~12°

EF 80-200mm f/4.5-5.6@

22°40’~6°50’·15°10’~4°35’·27°~8°15’

4-5

EF 90-300mm f/4.5-5.6 USM

22°40’~6°50’·15°10’~4°35’·27°~8°15’

5-7

EF 90-300mm f/4.5-5.6

20°~6°50’·14°~4°35’·24°~8°15’

EF 100-300mm f/4.5-5.6 USM

20°~5°10’·14°~3°30’·24°~6°10’

9-12

20°40’·14°10’·24°30’

11-12

97°10’~54°30’·74°10’~37°50’·107°30’~63°30’

13-16

EF 100-400mm f/4.5-5.6L IS USM EF-S 60mm f/2.8 Macro USM

10-14

EF-S 10-22mm f/3.5-4.5 USM*5

68°40’~23°20’·48°~15°40’·78°30’~27°50’

12-15

EF-S 17-55mm f/2.8 IS USM

68°40’~15°25’·48~10°25’·78°30’~18°25’

13-18

EF-S 17-85mm f/4-5.6 IS USM*5

64°30’~23°20’·45°30’~15°40’·74°20’~27°50’

8-10

EF-S 18-55mm f/3.5-5.6@ USM*5

64°30’~23°20’·45°30’~15°40’·74°20’~27°50’

EF-S 18-55mm f/3.5-5.6@*5

8-10 12-15 9-10 9-10 12-16 12-16 12-16 16-23 13-13 18-23 15-18





































EF 180mm 14mm f/2.8L f/3.5LUSM Macro USM

0.19(at 0.24(at 0.3(at 0.16 0.1 135mm) 90mm) 40mm)

Ring-type USM*3

EF 20mm MP-E 65mm f/2.8 f/2.8 USM 1-5 x Macro Photo

0.19(at 0.28(at 0.13(at 0.14 0.29 105mm) 200mm) 35mm)

Ring-type USM*3

EF 24mm TS-E 24mm f/1.4L f/3.5L USM

0.28(at 0.29(at 0.16 200mm) 70mm)

Ring-type USM*3

EF 24mm TS-E 45mm f/2.8 f/2.8

0.3(at 0.16(at 0.16 300mm) 85mm)

Micro AFD USM

— O — O

72 52 77

77x89/3”x3.5”

52 drop-in — 77

77.5x70.6/3.1”x2.8”

560/1.2 475/1 lb. lbs. 405/14.3 190/6.7

52 drop-in 58 67

83.5x77.4/3.3”x3.1”

550/1.2 190/6.7 lbs.

58 72 77

67.5x48.5/2.7”x1.9”

270/9.5

52 58

73.6x55.6/2.9”x2.2”

310/10.9

72 58

67.4x42.5/2.7”x1.7”

185/6.5

52 72 58

79x86/3.1”x3.4”

580/1.3 lbs.

72 58

67.4x42.5/2.7”x1.7”

210/7.4

— 58

85.4x65.5/3.4”x2.6”

545/1.2 lbs.

— 52 72

73.8x50.5/2.9”x2”

290/10.2

72

68.2x41/2.7”x1.6”

130/4.6 1,025/2.3 lbs.

EF 28mm TS-E 90mm f/1.8 f/2.8 USM

0.21(at 0.18 200mm)

4 3 Ring-type MM*USM*

EF 28mm EF Extender f/2.8 1.4

0.17(at 0.13 200mm)

Ring-type AFD USM*3

EF 35mm EF Extender f/1.4L 2 x@USM

0.16(at 0.18 200mm)

Ring-type Micro USM USM* @

EF 16-35mm 35mm f/2 f/2.8L USM

0.21(at 0.23 200mm)

MM* AFD4

EF 17-40mm 50mm f/1.2L f/4L USM

0.21(at 0.11 200mm)

Ring-type USM*3

EF 20-35mm 50mm f/1.4 f/3.5-4.5 USM USM

0.26(at 0.15 300mm)

Micro Micro USM* USM 3

EF 24-70mm 50mm f/1.8 f/2.8L @ USM

0.19(at 0.15 300mm)

MM*4

EF 24-85mm 85mm f/1.2L f/3.5-4.5 @USMUSM

0.25(at 0.11 300mm)

Ring-type USM*3

58 72

91.5x84/3.6”x3.3”

EF 24-105mm 85mm f/1.8f/4L USM IS USM

0.25(at 0.13 300mm)

Ring-type Micro USM USM*3

58 77

75x71.5/3”x2.8”

425/15

EF 28-90mm 100mm f/2f/4-5.6 USM @USM

0.16(at 0.14 200mm)

Ring-type USM*3

72 52

75x73.5/3”x2.9”

460/1 lb.

EF 28-90mm 135mm f/2L f/4-5.6 USM #

0.25(at 0.19 300mm)

Ring-type USM*3

52 77

82.5x112/3.2”x4.4”

750/1.7 lbs.

EF 28-105mm 135mm f/2.8 f/3.5-4.5 (with Softfocus) @USM

0.25(at 0.12 300mm)

Ring-type AFDUSM*3

72 77

69.2x98.4/2.7”x3.9”

390/13.8

EF 28-105mm 200mm f/2.8L f/4-5.6 @USM USM

0.2(at0.16 300mm)

Ring-type USM*3

67

83.2x136.2/3.3”x5.4”

765/1.7 lbs.

EF 28-105mm 300mm f/2.8L f/4-5.6 IS USM

0.2(at0.13 400mm)


67

128x252/5”x9.9”

2,550/5.6 lbs.

0.24 1

Ring-type USM*3

58

90x221/3.5”x8.7”

1,190/2.6 lbs.

0.17(at 0.15 22mm)

Ring-type Micro USM USM*

3

58

163x349/6.4”x13.7”

5,370/11.8 lbs.

0.17(at 0.12 55mm)


58

128x232.7/5”x9.4”

1,940/4.3 lbs.

0.2(at 0.12 85mm)


58

90x256.5/3.5”x10.1”

1,250/2.8 lbs.

EF 55-200mm 500mm f/4Lf/4.5-5.6 IS USM@ USM

0.28(at 0.12 55mm)


52

146x387/5.8”x15.2”

3,870/8.5 lbs.

EF 70-200mm 600mm f/4Lf/2.8L IS USM IS USM

0.28(at 0.12 55mm)


58

168x456/6.6”x18”

5,360/11.8 lbs.

Ring-type AFDUSM*3

58

67.6x63/2.7”x2.5”

280/9.9

EF 70-200mm f/4L USM

Ring-type — USM*3

58

67.6x34.9/2.7”x1.4”

160/5.6

EF 70-200mm f/4L IS USM

Ring-type Ring-type USM* USM 3

77

78.6x118.6/3.1”x4.7”

580/1.3 lbs.

EF 70-300mm f/4-5.6 IS USM

Ring-type USM*3

52

82.5x186.6/3.3”x7.4”

1,090/2.6 lbs.

EF 70-300mm f/4.5-5.6 DO IS USM

Ring-type USM*3

77

81x98/3.2”x3.9”

710/1.6 lbs.

EF 75-300mm f/4-5.6# USM

Ring-type USM*3

77

78x86.7/3.1”x3.4”

570/1.3 lbs.

Micro USM@

67

81x90.1/3.2”x3.5”

645/1.4 lbs.

MM*4

58

73.6x88/2.9”x3.5”

565/1.2 lbs.

58

72.8x27.2/2.9”x1.1”

220/7.8

x

@

EF 28-135mm 300mm f/4Lf/3.5-5.6 IS USMIS USM EF 28-200mm 400mm f/2.8L f/3.5-5.6 IS USM USM EF 28-200mm 400mm f/4 f/3.5-5.6 DO IS USM EF 28-300mm 400mm f/5.6L f/3.5-5.6L USM IS USM

EF 70-200mm 50mm f/2.5f/2.8L Compact USM Macro

EF 75-300mm f/4-5.6# EF 80-200mm f/4.5-5.6@ EF 90-300mm f/4.5-5.6 USM

0.5

3

— — — O O O

EF 90-300mm f/4.5-5.6

71.8x57.9/2.8”x2.3”

265/9.3

EF 100-300mm f/4.5-5.6 USM

83.5x103/3.3”x4.1”

600/1.3 lbs.

EF 100-400mm f/4.5-5.6L IS USM

83.5x96.8/3.3”x3.8”

475/1 lb.

EF-S 60mm f/2.8 Macro USM

83.5x68.9/3.3”x2.7”

340/12

EF-S 10-22mm f/3.5-4.5 USM

83.2x123.5/3.3”x4.9”

950/2.1 lbs.

EF-S 17-55mm f/2.8 IS USM

73x69.5/2.9”x2.7”

380/13.4

EF-S 17-85mm f/4-5.6 IS USM

83.5x107/3.3”x4.2”

670/23.6

EF-S 18-55mm f/3.5-5.6@ USM

67x71/2.6”x2.8”

190/6.7

EF-S 18-55mm f/3.5-5.6@

67x71.2/2.6”x2.8”

190/6.7

72x75/2.8”x3”

375/13.2

67x68/2.6”x2.7”

210/7.4

67x68/2.6”x2.7”

210/7.4

78.4x96.8/3.1”x3.8”

540/1.2 lbs.

78.4x89.6/3.1”x3.5”

500/1.1 lbs.

78.4x89.6/3.1”x3.5”

495/1.1 lbs.

92x184/3.6”x7.2”

1,670/3.7 lbs.

70.4x97.3/2.8”x3.8”

310/10.9

86.2x197/3.4”x7.8”

1,470/3.2 lbs.

84.6x193.6/3.3”x7.6”

1,310/2.9 lbs.

76x172/3”x6.8”

705/1.6 lbs.

76x172/3”x6.8”

760/1.7 lbs.

76.5x142.8/3.0”x5.6”

630/22.2

82.4x99.9/3.2”x3.9”

720/1.6 lbs.

71x122/2.8”x4.8”

480/1.1 lbs.

71x122/2.8”x4.8”

480/1.1 lbs.

69x78.5/2.7”x3.1”

250/8.8

71x114.7/2.8”x4.5”

420/14.8

71x114.7/2.8”x4.5”

420/14.8

73x121.5/2.9”x4.8”

540/1.2 lbs.

92x189/3.6”x7.4”

1,380/3 lbs.

73x69.8/2.9”x2.8”

335/11.8

83.5x89.8/3.3”x3.5”

385/13.6

83.5x110.6/3.3”x4.4” 78.5x92/3.1”x3.6” 68.5x66/2.7”x2.6” 68.5x66/2.7”x2.6”







































When using the Extender EF 1.4xII the autofocus drops in speed by approximately one half, and when using the Extender EF 2xII, it drops 1/4.

*3 AF can be used only with the center measuring point when using the EOS-1V/HS, EOS-3, EOS-1Ds Mark II, EOS-1Ds, EOS-1D Mark II N, EOS-1D Mark II, EOS-1D, EOS 5D. With othe available.









































EF Lens Accessory Chart Extension Tube

Lens

EF 12@

Extension Tube EF 25@

LENS HOOD

EF

15mm

f/2.8 Fisheye

—

—

Built-in

EF

14mm

f/2.8L USM

—

—

Built-in

EF

20mm

f/2.8 USM

EF

24mm

f/1.4L USM

EF

24mm

f/2.8

0.72~0.60X

—

LENS CAP

Exclusive

35mm

f/1.4L USM

EF

35mm

f/2

EF

50mm

f/1.2L USM

EF

50mm

f/1.4 USM

Case

LP814

Gelatin Filter Holder # Gelatin Filter Holder$ (Hood#*1) (Hood$*1) NC*

2

NC*

2

EW-75@

NC*

2

NC*

2

0 0

— 1.22~1.11X

EF

Lens Pourch/

LP811

0

0

LP814

0

0

LP1011

1

1

NC

0

2

2

ES-78

0

1

2*

2

2

1

4

4

3

LP1219 ET-65#

5

4

5

4

EF

135mm

f/2L USM

LP1219

5

5

EF

135mm

f/2.8 (with Softfocus)

LP1016

5

4

EF

200mm

f/2.8L@USM

LP1222

5

EF

300mm

f/2.8L IS USM

Lens Case 300

NC*

Built-in

LZ1128 Lens Case 400 Lens Case 400B

Built-in

LZ1132 Lens Case 500 Lens Case 600 LP814

— —) Life-size Converter EF (exclusive for EF 50mm f/2.5 Compact Macro

EF

100mm

f/2.8 Macro USM

EF

180mm

f/3.5L Macro USM

MP-E

65mm

EF

17-40mm

f/4L USM

EF

20-35mm

f/3.5-4.5 USM

EF

24-70mm

f/2.8L USM

EF

24-85mm

f/3.5-4.5

5

NC*

5

5*6

NC*

5

NC*

5

2

NC*

5

NC*

5

5 NC*

5

NC*

5

2

ET-78@ Exclusive

LP1216

EW-75B@

LP1216

ES-65#

f/2.8L USM

NC*

5

4

ET-67

1.19~0.12X

EW-79B@

16-35mm

5*

6

NC*

—

f/2.8 1-5 x Macro Photo

EF

5 5

0.87~0.36X

1.09~0.80X

0*

0*

0

0

9

9

1

1

—

Extender Cap E@

—

—

—

Extender Cap E@

—

—

NC

0*8

EW-83E

E-77U

0*8 0*8 0*

8

NC

USM

NC

0

EW-60C

0

0

EW-63@

EF

28-105mm

f/3.5-4.5@USM

0

0

EF

28-105mm

f/4-5.6 USM

0

0

EF

28-105mm

f/4-5.6

0

0

EF

28-135mm

f/3.5-5.6 IS USM

NC

0

EF

28-200mm

f/3.5-5.6 USM

EF

28-300mm

f/3.5-5.6L IS USM

EF

55-200mm

f/4.5-5.6@ USM

ET-54

EF

70-200mm

f/2.8L IS USM

ET-86

0 6*8 3

3

0

1

ET-83@

2

2

ET-74

2

3

ET-74

2

3

LP1222

2

3

LP1116

4

4

LZ1324

EF

75-300mm

f/4-5.6# USM

5

4

EF

75-300mm

f/4-5.6#

5

4

EF

90-300mm

f/4.5-5.6 USM

5

4

EF

90-300mm

f/4.5-5.6

5

4

EF

100-300mm

f/4.5-5.6 USM

EF

100-400mm

f/4.5-5.6L IS USM

EF-S

60mm

ET-65#

f/2.8 Macro USM Not recommended Not recommended

EF-S

17-85mm

f/4-5.6 IS USM

EF-S

18-55mm

f/3.5-5.6@ USM

0.72~0.33X

EW-83E

5

4

4

5

6

6

NC

0 0 0 0









































EF Lens Map

EF 15mm f/2.8 Fisheye

EF 28mm f/2.8

EF 14mm f/2.8L USM

EF 35mm f/1.4L USM

MP - E 65mm f/2.8 1.5 x Macro Photo

EF 135mm f/2L USM

EF 35mm f/2

EF 20mm f/2.8 USM

EF 24mm f/1.4L USM

EF 50mm f/1.2L USMEF 50mm f/1.4 USM

EF 85mm f/1.2L II USM

EF 135mm f/2.8 (with Softfocus)

EF 85mm f/1.8 USM

EF 24mm f/2.8

EF 50mm f/1.8 II

EF 100mm f/2 USM

EF 180mm f/3.5L Macro USM

EF 50mm f/2.5 Compact Macro

EF 28mm f/1.8 USM

Life-Size Converter EF

EF 100mm f/2.8 Macro USM

EF 200mm f/2.8L II USM









































EF 300mm f/4L IS USM EF 300mm f/2.8L IS USM

EF 400mm f/4 DO IS USM EF 400mm f/2.8L IS USM

EF 400mm f/5.6L USM EF 500mm f/4L IS USM









































EF 16 - 35mm f/2.8L USM

EF 28-90mm f/4-5.6 III

EF 17- 40mm f/4L USM

EF 24-105mm f/4L IS USM EF 20 - 35mm f/3.5 - 4.5 USM EF 24 - 70mm f/2.8L USM EF 24 - 85mm f/3.5 - 4.5 USM

EF 28 - 105mm f/3.5 - 4.5 II USM EF 28 - 105mm f/4-5.6 USM EF 28 - 105mm f/4 - 5.6

EF 28-300mm f/3.5-5.6L IS USM

EF 90 - 300mm f/4.5 - 5.6 USM

EF 70 - 200mm f/2.8L IS USM

EF 55- 200mm f/4.5 - 5.6 II USM

EF 70 - 200mm f/2.8L USM

EF 70 - 300mm f/4 - 5.6 IS USM

EF 28 - 135mm f/3.5 - 5.6 IS USM EF 28 - 200mm f/3.5 - 5.6 USM

EF 70 - 200mm f/4L IS USM

EF 70-300mm f/4.5-5.6 DO IS USM

EF 90 - 300mm f/4.5 - 5.6

EF 70 - 200mm f/4L USM

EF 75 - 300mm f/4-5.6 III USM

EF 100 - 300mm f/4.5 - 5.6 USM

EF 75 - 300mm f/4 - 5.6 III

EF 100 - 400mm f/4.5 - 5.6L IS USM

Exclusively for EF-S compatible DIGITAL SLR cameras EF-S lenses Compatible EOS SLR cameras: EOS 30D, EOS 20D, EOS 20Da, EOS 300D DIGITAL. (as of September 2006)











































EF LENS WORK III

The Eyes of EOS

September 2006, Eighth edition

Canon EF Lens Work III - The Eyes of EOS [Sept

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