Canon EF-S 10–22mm f/3.5–4.5 USM is designed for APS-C cameras and wide-angle shooting such as landscapes and architecture. The optical design includes three aspherical elements and one low-dispersion element. Ring-type USM autofocus is fast, quiet, and accurate. A rounded diaphragm provides artistic background blur at wide apertures. The lens is compact and lightweight. Included: Canon EF-S 10–22mm f/3.5–4.5 USM lens, front and rear caps, UV filter, pouch.