canon カメラ

シグマ/Sigma 300mm f/2.8 APO EX DG Lens Canon EOS 195101 SG30028EOS

Construction:9 Groups/11 ElementsAngle of view:8.2°F stop range:32Closest Focusing Distance:250cm / 98.4''Maximum Magnification:1:7.5Filter Size:46mm (drop-in type)Dimensions (Length x Diameter):214.5mm (8.4'') x Diameter 119mm (4.6'')Weight:2 400g / 84.7oz.・Fast maximum aperture F2.8 telephoto lens optimized for digital SLR cameras.・Multi layer lens coating minimizes flare and ghost.・Two ELD (extraordinary low dispersion) glass elements produce excellent imaging capability・Accepts both 1.4x and 2.0x EX Teleconverters to produce 420mm F4 and 600mm F5.6 Autofocus ultra telephoto optics.A versatile fast aperture telephoto lens for both digital and film SLR cameras.Two ELD glass elements reduce chromatic aberration to a minimum and also ensure sharp quality images of high contrast. The new multi layer lens coating reduces flare and ghost which is a common problem with digital SLR cameras. The overall length of the lens does not changeduring focusing ensuring convenient handling and ease of use. The HSM (Hyper Sonic Motor) models provide fast silent AF function as well as full- time manual focus override. A drop-in 46mm filter holder in the rear part of the lens barrel can be rotated to facilitate the use of filters including a polarizing filter Simply adding an APO teleconverter (optional extra) means that this lens can be used as a 420..m ..4 AF ultra-telephoto lens with a 1.4X EX teleconverter or a 600mm F5.6 AF ultra-telephoto lens with a 2X teleconverter.

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