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

The Canon EF-S 10-22mm f/3.5-4.5 USM lens is a versatile wide-angle zoom lens designed specifically for Canon EF-S-mount APS-C DSLR cameras. It offers a focal length range equivalent to 16-35.2mm in 35mm format, making it suitable for a wide range of shooting situations.

The lens features a sophisticated optical design that includes one Super-UD (Ultra-low Dispersion) element and three aspherical elements. These elements work together to effectively control chromatic and spherical aberrations, resulting in sharp and high-quality images. Additionally, a Super Spectra coating is applied to minimize flare and ghosting, enhancing contrast and color accuracy.

For autofocus, the lens utilizes a ring-type Ultrasonic Motor (USM) that delivers fast and quiet performance. It also allows for full-time manual focus override, giving you the flexibility to make precise focus adjustments manually. The lens features an internal focus design, which not only speeds up autofocus but also maintains the overall length of the lens during focusing.

Overall, the EF-S 10-22mm f/3.5-4.5 USM lens combines versatility, optical excellence, and quick autofocus capabilities, making it a great choice for wide-angle photography on Canon EF-S-mount APS-C DSLR cameras.