Precautions when using digital cameras

If there is dust on the image sensor, it will be recorded in the photograph. This will especially stand out in large prints. If there is dust on the image sensor, it will be recorded in the photograph. This will especially stand out in large prints. Do not depend on your computer to fix your images Images taken using a digital camera can be adjusted for sharpness, brightness, contrast, and other factors using a computer. However, avoid becoming over-dependent on your computer to fix the...

Info

Extracting the Utmost in Lens Performance Elimination of Internal Reflections Ghosting and flare are caused by harmful light reflections within the lens, adversely affecting picture quality. EF lenses are therefore designed to eliminate reflections both in the lenses and barrel. Each lens element is treated with a special coating to prevent harmful light from occurring by suppressing lens surface reflection. Lens barrel reflection is taken care of by selecting the best anti-reflection methods...

Ef Lens Work Iii The Eyes of EOS

Lens Products Group Production and Editorial Canon Inc. Lens Products Group Printer Nikko Graphic Arts Co., Ltd. Thanks for the Cooperation of Brasserie Le Solf rino Restaurant de la Maison Fouraise, Chatou Hippodrome de Marseille Bor ly Cyrille Varet Cr ations, Paris Jean Pavie, artisan luthier, Paris Participation de la Mairie de Paris JeanMichel OTHONIEL, sculpteur Canon Inc. 2003 Products and specifications are subject to change without notice. The...

B

Reflection differs from refraction in that it is a phenomenon which causes a portion of the light striking the surface of glass or other medium to break off and propagate in an entirely new direction. The direction of propagation is the same regardless of wavelength. When light enters and leaves a lens which does not have an anti-reflection coating, approximately 5 of the light is reflected at the glass-air boundary. The amount of light reflected depends on the glass material's index of...

EF mm

EF 400mm f 4 DO IS USM-1 320sec.-f 6.3 elements. It delivers unrivaled imaging performance while keeping size and weight down to manageable levels. By combining DO lens elements with normal refraction elements, colour aberration is corrected to levels even higher than is possible with fluorite elements. This lens also has the fastest autofocusing in the world*1. Equipped with an Image Stabilizing mechanism and a thoroughgoing dust-proof and drip-proof*2 construction, it can be used in even the...

EF Lens Accessories

4x and 8x Loupes provide superb resolving power, and their Super Spectra Coating produces a clearer-than-ever image, enabling effective evaluation of image quality. Loupe 4x completely eliminates astigmatic aberration, allowing every detail in the 24mm x 36mm surface of a negative frame to be viewed. Loupe 8x provides a field of vision with a 24mm diameter and can accurately pick out details even when checking under extreme enlargement. When 4x and 8x are used together, the quality evaluation...

EF mm fL Is Usm

Focal length and maximum aperture 70-200 mm 1 4 Lens construction 20 elements in 15 groups Diagonal angle of view 34 -12 Focus adjustment Ring-type USM, inner focusing system, full-time manual focus Closest focusing distance 1.2 m 3.94 ft., 0.21 x magnification Zoom system Rotation type Filter size 67 mm Max. diameter x length, weight 0 76 x 172 mm, 760g 3 x 6.8, 1.7 lbs. Newly developed triple-layered DO lens realising a high-image-quality ultracompact telephoto zoom lens Covering the 300mm...

Fmm f

Focal length and maximum aperture 28-90 mm 1 4-5.6 Lens construction 10 elements in 8 groups Diagonal angle of view 75 - 27 Focus adjustment Front group rotating extension system with micro motor Closest focusing distance 0.38 m 1.3 ft., 0.3 x magnification Zoom system Rotating type Filter size 58 mm Max. diameter x length, weight 0 67 x 71.2 mm, 190 g 2.6 x 2.8, 6.7 oz. Clearly defining the range of use as a wide-angle lens and as a telephoto lens. The 28-105mm standard zoom - more fun with...

EF mm EF mm

Focal length and maximum aperture 17-40 mm 1 4 Lens construction 12 elements in 9 groups Diagonal angle of view 104 -57 30' Focus adjustment Ring-type USM, inner focusing system, full-time manual focus Closest focusing distance 0.28 m 0.9 ft., 024 x magnification Zoom system Rotating type Filter size 77 mm Max. diameter x length, weight 0 83.5 x 96.8 mm, 475 g 3.3 x 3.8, 1 lb. Focal length and maximum aperture 17-40 mm 1 4 Lens construction 12 elements in 9 groups Diagonal angle of view 104...

EF mm Macro

Focal length and maximum aperture 180 mm 1 3.5 Lens construction 14 elements in 12 groups Diagonal angle of view 13 40' Focus adjustment Ring-type USM, inner focusing system, full-time manual focus Closest focusing distance 0.48 m 1.6 ft., 1 x magnification Filter size 72 mm Max. diameter x length, weight 0 82.5 x 186.6 mm, 1,090 g 3.3 x 7.4, 38.5 oz. to infinity. Use of three UD elements effectively corrects secondary spectrum. Employing an internal floating construction ensures sharp...

Where Dreams Are Crystal Clear

The bright red line engraved on the lens barrel. And an L for luxury. The Canon EF lens L series possesses a level of quality sufficiently high to be called professional, designed to include groundbreaking image performance, outstanding operability, and resistance to weather and aging. L. This name is reserved only for those few lenses that can meet stringent standards of performance, using fluorite (an artificial crystal), a ground and polished aspherical surface, UD, super UD lenses, or other...

The power of lenses only visible in extreme enlargements

Even when combined with a digital camera, an EF lens has high potential. In this photo of a harbor crowded with yachts, high resolution reveals the fine detail in individual boats. Photographing images with detailed subject matter, such as landscapes, is possible without having to differentiate between a digital camera and a 35mm film camera. Even when combined with a digital camera, an EF lens has high potential. In this photo of a harbor crowded with yachts, high resolution reveals the fine...

Taking up the challenge of Canon lenses

Already more than half a century has passed since Canon developed its first camera lens. And now, while making astounding breakthroughs in cutting edge digital technology, Canon is raising the design specification bar for the possibilities expected of each lens in the world of SLR cameras, already advancing-by-leaps and bounds. Our challenge now is to make the perfect lens, to meet the high level needs and desires of photographers jwho want the best from their EOS cameras. The Canon EF Lens....

How to deal with flaring and ghosting particular to digital photography

In lenses employing flat protective glass, a reflection occurs between the image sensor and the protective glass, which causes the subject to be photographed in a position different from the actual position. In lenses employing flat protective glass, a reflection occurs between the image sensor and the protective glass, which causes the subject to be photographed in a position different from the actual position. In lenses employing a meniscus lens, no reflection like that seen to the left...

Relationship between SLR Camera Structure and Lens

Slr Camera Strcture

Check the subject through the viewfinder. 2. The mirror rises and the shutter opens to expose the 3. The shutter closes and the mirror returns to its original 1. Check the subject through the viewfinder. 2. The mirror rises and the shutter opens to expose the 3. The shutter closes and the mirror returns to its original What does the world look like through a lens Construction and characteristics of the SLR camera. The single-lens reflex (SLR) camera construction makes it possible to use a wide...

Colour reproduction in digital cameras

When photographing subjects under fluorescent light using AWB (Auto White Balance) When photographing subjects under fluorescent light using AWB (Auto White Balance) The true colour can be reproduced even when under fluorescent lighting. The true colour can be reproduced even when under fluorescent lighting. When photographing subjects under fluorescent light using the white balance mode (sunlight) When photographing subjects under fluorescent light using the white balance mode (sunlight) The...

D

Gelatin Filter Gelatin Filter Holder IV Holder Adapter IV This convenient holder system allows the use of commercially available square filters without the need for cutting. The holder attaches to the lens through an adapter that fits the filter diameter. A special hood is available for use with the system. Use with 3-inch square type III and 4-inch square type IV gelatin filters. Gelatin filters can be used with most EF lenses. Refer to the Specifications Chart in the back for lens...

TSE mm f

Focal length and maximum aperture 90 mm 1 2.8 Lens construction 6 elements in 5 groups Diagonal angle of view 27 Image circle diameter 58.6 mm Tilt shift amount 8 11 mm Angle of revolution 0 90 Focus adjustment Manual focus, overall linear extension system Closest focusing distance 0.5 m 1.6 ft., 0.29 x magnification Filter size 58 mm Max. diameter x length, weight 0 73.6 x 88 mm, 565 g 2.9 x 3.5, 1.2 lbs.