Wide zoom focal range of 10-22mm (equivalent to 16-35mm on APS-C DSLRs)
Ring-type Ultra-Sonic Motor (USM)
13 lens elements arranged in 10 groups
Filter thread specification of 77mm
Full-time manual focusing
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 DSLR 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
13 elements in 10 groups
Diagonal Angle of View
107° 30' - 63° 30'
Inner focusing system, with focusing cam
Closest Focusing Distance
0.24m / 0.79 ft.
Max. Diameter x Length, Weight
3.3" x 3.5", 13.6 oz. / 83.5 x 89.8mm, 385g