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This exciting new zoom lens provides ultra wide-angle coverage to the EOS 20D and Digital Rebel shooter. Equivalent to a 16-35mm zoom, it offers excellent performance and optics designed from the ground-up for digital SLR use. Three Aspherical lens elements, plus a Super-UD element, assure image quality. Its ring-type USM means fast and silent AF along with full-time manual focus. It focuses as close as 9.5 inches.
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Features:
* Excellent optical quality and true wide-angle coverage with select digital SLRs
* Superior AF performance and speed, with full-time manual focus by simply turning ring
* Close-focusing to 9.5 inches -- fill the frame with subjects as small as 3.6 x 5.4 inches
* Relatively compact size and light weight for an ultra-wide zoom lens
Inner focusing system (no front element rotation); length doesn't change if zoomed
* Circular aperture design -- natural highlights, even stopped down two stops
* Electronic diaphragm -- manually-set apertures stay constant from f/4.5 thru f/22
* EF-S lens mount -- exclusivelyfor EOS 20D and Digital Rebel bodies
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