Canon EF 20mm f/2.8 USM

Weight: 405 g
Brand: Canon
Description: Mount: Canon EF, lens type: wide-angle, focal length: fixed, auto focus, prime lens focal length: 20 mm, aperture F at min. focal length: 2.80, functions: focusing
Type: Lens
Functions: Focusing motor for Nikon F, ultrasonic motor, internal focusing
Length: 70.6 mm
Diameter: 77.5 mm
Focal length: Permanent
Lens type: Wide angle
Max viewing angle: 94 degrees min
Minimum focus distance: 0.25 m
Auto focus: There is
Focal length of prime lens: 20 mm
Bayonet: Canon EF
Filter thread diameter: 72 mm
Aperture F at min. focal length: 2.8
Minimum aperture F: 22
Number of aperture blades: 6
Number of element groups: 9
Number of elements: 11