Description
Offering an impressively wide field of view, the EF 20mm f/2.8 USM from Canon is a well-corrected wide-angle prime also featuring a bright f/2.8 maximum aperture and sophisticated optical design. Four aspherical elements are featured, to limit spherical aberrations and distortion, and two Super UD elements are also used to reduce color fringing for greater clarity. A Super Spectra coating has been applied, too, in order to minimize flare and ghosting for improved contrast and color fidelity. Complementing the optical traits is a ring-type USM for quick and quiet autofocus performance, along with full-time manual focus override, and a floating rear focusing group helps to maintain consistent image quality throughout the focusing range.
Focal Length 20mm
Maximum Aperture f/2.8
Minimum Aperture f/22
Lens Mount Canon EF
Format Compatibility Full-Frame
Angle of View 94°
Minimum Focus Distance 9.84″ / 25 cm
Maximum Magnification 0.14x
Optical Design 11 Elements in 9 Groups
Diaphragm Blades 5, Rounded
Focus Type Autofocus
Image Stabilization None
Filter Size 72 mm (Front)
Dimensions (ø x L) 3.05 x 2.78″ / 77.47 x 70.61 mm
Weight 14.29 oz / 405 g
Packaging Info
Package Weight 1.28 lb
Box Dimensions (LxWxH) 6.25 x 5.45 x 5.45″
