Canon SLR Lens Overview – EF-S 17mm – 85 mm F-4 0.0-5, 6 IS USM lens with image stabilization Autofocus Zoom Lens

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Canon SLR Lens Overview – EF-S 17mm – 85 mm F-4 0.0-5, 6 IS USM lens with image stabilization Autofocus Zoom Lens Posted: 15 Jul 2011 06:20 PM PDT The EF-S series lenses are Canon, Canon Lenses for exceptional digital SLR cameras such as the EOS 20D and Rebel models. Why? The key design feature aimed at the APS-C size image sensor that matches the image circle. How? This goal is the adaptation, by reducing the distance between the back of the lens and reaches the image plane, and reduces the size of the image circle. The result? Canon EF-S> Objectives are more efficient in terms of: weight and cost of wide-angle lenses and the same outstanding image quality, resolution and contrast at all focal lengths. . As a member of the EF-S family of lenses, the 17-85 F4 USM running strong wide-angle to telephoto, but the feature list is as follows: image stabilizer for handheld situations and optical for the digital SLR camera for an ideal, a ring-type USM for fast and quiet auto designto concentrate. The full-time manual focus in AF mode is also useful addition. The EF-S 17-85mm f/4-5.6 IS USM lens offers a 5x zoom ratio and an angle of a 27-136mm equivalent lens on a 35mm camera. Even this goal is a glass aspherical lens with aspherical surfaces on both sides. The result, an excellent image quality throughout the zoom range. The minimum focusing distance of 12 cm is impressive at all focal lengthsLengths. Finally, the EF-S 17-85mm EF 28-135mm when the IS is compared, is 5% shorter and 12% lighter and accepts 67mm filters.

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