Canon EF-S 17-85mm f/4-5.6 IS USM specs
Lens Construction - 17 elements in 12 groups
Diagonal Angle of View - 78° 30' - 18° 25'
Focus Adjustment - Inner focusing system, with focusing cam
Closest Focusing Distance - 0.35m - 1.15 ft.
Zoom System - Ring USM
Filter Size - 67mm
Max. Diameter x Length, Weight - 3.1" x 3.6", 16.8 oz. / 78.5 x 92mm, 475g
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Filed in: Canon Camera Lenses
Description: Equivalent to a 28-135mm lens, this new EF-S lens brings true wide-angle to tele coverage to EOS 20D and Digital Rebel shooters. It has Canon's Image Stabilization system, allowing safe hand-holding at speeds up to three stops slower than otherwise possible. And of course, it's optically optimized for digital SLRs. A ring-type USM means both fast and silent AF, as well as full-time manual focus when in the AF mode.