Wide-angle lenses let you capture more of the image by broadening the angle of view and increasing the depth of field, thereby bringing more of the area into focus. The lenses also provide a unique perspective by expanding the apparent distance between the foreground and the background. This Canon 20mm f/2.8 is no exception, with such additional features as a floating rear focusing system with an Ultra Sonic Motor (USM), a 0.8-foot close focusing distance, and a 94-degree diagonal angle of view.

Ultra-wide-angle lens for serious applications. Easy to hold and carry at 14.3 oz. (405g). Floating rear focusing system. Sharp images are obtained at all subject distances.

The optical performance, fast f/2.8 speed and ultra-wide-angle coverage make this a great choice for many applications, like interiors, scenics, travel and photojournalism. It uses a “floating” optical system for excellent sharpness even at its minimum focusing distance of under 10 inches (0.25m), and with a ring-type USM and full-time manual focusing capability, offers the speed and handling pros expect.

Focal length: 20mm

Maximum aperture: f/2.8

Lens construction: 11 elements in 9 groups

Angle of view: 94 degrees

Focus adjustment: Rear focusing system with USM

Close focusing distance: 0.8 feet

Filter size: 72mm

Corresponding mounts: Canon

Dimensions: 3.1 inches in diameter and 2.8 inches long

Weight: 14.3 ounces