• Anglický jazyk

Canon lenses

Autor: Source: Wikipedia

Source: Wikipedia. Pages: 42. Chapters: Canon EF-S lenses, Canon EF lenses, Canon FD lenses, Canon FL lenses, Canon L-Series lenses, Canon kit lenses, Canon EF lens mount, Canon EF 50mm lens, Canon FD lens mount, Canon Extender EF, Canon EF 85mm lens, Canon... Viac o knihe

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Source: Wikipedia. Pages: 42. Chapters: Canon EF-S lenses, Canon EF lenses, Canon FD lenses, Canon FL lenses, Canon L-Series lenses, Canon kit lenses, Canon EF lens mount, Canon EF 50mm lens, Canon FD lens mount, Canon Extender EF, Canon EF 85mm lens, Canon EF 70-200mm lens, Canon L lens, Canon EF 70-300mm lens, Canon EF 200mm lens, Canon EF 35mm lens, Canon EF-S lens mount, Canon FD 200 mm lens, Canon EF-S 18-55mm lens, Canon EF-S 10-22mm lens, Canon EF 135mm lens, Canon EF 300mm lens, Canon EF 1200mm lens, Canon EF 28-80mm lens, Canon EF-S 17-55mm lens, Canon TS-E 24mm lens, Canon EF 100mm lens, Canon EF 500mm lens, Canon EF 28-105mm lens, Canon EF 16-35mm lens, Canon EF 24-70mm lens, Canon EF 75-300mm lens, Canon EF 80-200mm lens, Canon MP-E 65mm f/2.8 1-5x Macro lens, Canon TS-E 90mm lens, Canon TS-E 17mm lens, Canon TS-E 45mm lens, Canon EF 100-300mm lens, Canon EF Portrait Lenses, Canon EF-S 18-200mm lens, Canon EF 20-35mm lens, Canon EF 24-105mm lens, Canon EF 28-300mm lens, Canon FD 135 mm lens, Canon EF 17-40mm lens, Canon EF 35-350mm lens, Canon EF-S 60mm f/2.8 Macro USM lens, Canon EF 400mm lens, Canon EF 28-70mm lens, Canon EF 28-135mm lens, Canon EF-S 17-85mm lens, Canon EF 28mm lens, Canon EF 800mm lens, Canon EF-S 55-250mm lens, Canon FD 35mm f/2, Canon EF 600mm lens, Canon EF 24mm lens, Canon EF 100-400mm lens, Canon EF-S 15-85mm lens, Canon EF 28-90mm lens, Canon EF 24-85mm lens, Canon EF 14mm lens, Canon EF-S 18-135mm lens, Canon EF 22-55mm lens, Canon FL 85-300mm lens, Canon EF 15mm lens, Canon EF 180mm f/3.5L Macro USM lens, Canon New FD 35-70 mm f/4 AF, Canon EF 17-35mm lens, Canon FL 1200mm lens, Canon FD 300mm f/2.8 S.S.C. Fluorite, Canon EF 20mm lens, Canon EF 70-210mm lens, Canon New Fisheye FD 15mm f/2.8, Canon EF 90-300mm lens. Excerpt: Introduced in 1987, the EF lens mount is the standard lens mount on the Canon EOS family of SLR film and digital cameras. EF stands for "Electro-Focus": automatic focusing on EF lenses is handled by a dedicated electric motor built into the lens. Mechanically, it is a bayonet-style mount, and all communication between camera and lens takes place through electrical contacts; there are no mechanical levers or plungers. In 2003, Canon introduced the EF-S lens mount, a derivative of the EF mount that is strictly for digital EOS cameras with a 1.6x crop released after 2003. EF lenses can be mounted on EF-S bodies but may not work on all function settings resulting in communications error, albeit with cropped image, while EF-S lenses cannot be mounted on EF bodies. The EF mount of a Canon EOS 50The EF mount replaces its predecessor, the FD mount. The standard autofocus lens mounting technology of the time used a motor in the camera body to drive the mechanics of the focus helicoid in the lens by using a transfer lever. The key innovation of the EF series was to use a motor inside the lens itself for focusing. This allowed for autofocusing lenses which did not require mechanical levers in the mount mechanism, only electrical contacts to supply power and instructions to the lens motor. The motors were designed for the particular lens they were installed in. When the EF mount was introduced in 1987, it had the largest mount diameter (54 mm internal) among all 35 mm SLR cameras. The EF series includes over sixty lenses. The EF series has encompassed focal lengths from 8 to 1200 mm (and as wide as 10 mm for EF-S lenses). Many EF lenses include such features as Canon's ultrasonic motor (US...

  • Vydavateľstvo: Books LLC, Reference Series
  • Rok vydania: 2011
  • Formát: Paperback
  • Rozmer: 246 x 189 mm
  • Jazyk: Anglický jazyk
  • ISBN: 9781157084037

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