This exciting zoom lens provides ultra wide-angle coverage to the EOS 20D, 30D, 40D, 50D and Digital Rebel SLRs. 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.
| 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 |