The function and design of this Canon lens are excellent, and a lot of care has gone into its construction. The lens' auto-focus is virtually silent and incredibly fast. Moving from close up to far out is effortless, and almost feels like you're adjusting like a real pair of eyes.
- 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 -- exclusively for EOS 20D and Digital Rebel bodies
- Focal Length & Maximum Aperture: 10 - 22mm; 1:3.5-4.5
- Lens Construction: 13 elements in 10 groups
- Diagonal Angle of View: 107° 30' - 63° 30'
- Focus Adjustment: Inner focusing system, with focusing cam
- Closest Focusing Distance: 0.24m / 0.79 ft.
- Zoom System: Ring USM
- Filter Size: 77mm
- Max. Diameter x Length, Weight: 3.3" x 3.5", 13.6 oz. / 83.5 x 89.8mm, 385g
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