Canon EF-S 10-22mm f/3.5-4.5 USM Lens

The Canon EF‑S 10‑22mm f/3.5‑4.5 USM is a high‑quality ultra‑wide‑angle zoom lens designed specifically for Canon APS‑C DSLR cameras with an EF‑S mount. Its focal length range of 10–22mm provides a 35mm‑equivalent field of view of roughly 16–35mm, making it an excellent choice for photographers who need expansive perspective coverage for landscape, architecture, interiors, real estate, and travel photography.

Optically, the lens is built with 13 elements in 10 groups, including three aspherical elements and one Super Ultra‑Low Dispersion (Super‑UD) glass element. These specialized elements work together to reduce chromatic and spherical aberrations while maintaining high sharpness, good contrast, and accurate rendering across the zoom range. Canon’s Super Spectra coatings are applied to help minimize flare and ghosting when shooting in bright conditions or against strong light sources, boosting clarity and color fidelity.

Focusing performance is powered by Canon’s ring‑type Ultrasonic Motor (USM), which delivers fast, smooth, and quiet autofocus along with a full‑time manual focus override. The internal focusing design means the lens does not change length while focusing, and the front element does not rotate — a benefit when using polarizing or graduated filters.

The lens maintains a minimum focusing distance of 0.24 m (24 cm) throughout the zoom range, enabling photographers to capture expansive wide scenes while still getting relatively close to subjects for creative compositions. The rounded six‑blade diaphragm contributes to smoother out‑of‑focus areas when shooting with selective focus techniques.

Although this lens does not feature image stabilization, its wide field of view helps reduce the visible effects of camera shake at typical shooting distances. The lens has a 77 mm front filter thread, making it compatible with a wide range of standard filters such as UV, polarizing, and neutral density filters without requiring step‑up rings.

Photographers appreciate the EF‑S 10‑22mm for its combination of versatility, optical quality, and build, especially considering its relatively compact and lightweight design (~385 g). The ultra‑wide angle makes it ideal for capturing broad landscapes, dramatic skies, and detailed interior spaces where a normal zoom can’t capture the full scene. While newer lenses have been introduced for Canon’s mirrorless line and stabilized alternatives exist, the 10‑22mm remains a respected choice among enthusiasts and professionals shooting on APS‑C bodies.