Canon EF-S 10-22mm f3.5-4.5 USM

Canon EF-S 10-22mm f3.5-4.5 USM Description

The Canon EF-S 10-22mm f/3.5-4.5 USM is an ultra-wide-angle zoom lens designed for APS-C digital SLRs, with an equivalent focal length of 16 to 35mm. Covering a focal length of 10 to 22mm, this lens features an optical structure of 13 elements in 10 groups and is equipped with a 77mm filter thread. The lens is designed with internal zoom and internal focusing, maintaining a constant barrel length during zooming and focusing, and the front group lenses do not rotate, which aids in dust protection and filter mounting. The lens body is made of technical plastic and weighs 385 grams. The optical system includes super UD (super Ultra Low Dispersion) lenses and several aspherical lenses, and it applies an optimized coating to reduce chromatic aberrations, ghosting, and flare. It is equipped with a ring-type ultrasonic motor (USM) that supports fast autofocus compared to full-time manual focus and uses an electromagnetic diaphragm (EMD) for a circular aperture.