Canon EF 85mm f/1.8 USM

Weight: 425 g
Brand: Canon
Description: Mount: Mamiya 645, lens type: standard, focal length: variable, min. focal length: 55 mm, max. focal length: 110 mm, aperture F at min. focal length: 4.50, aperture F at max. focal length
Type: Lens
Functions: Focusing motor for Nikon F, ultrasonic motor, internal focusing
Length: 71.5 mm
Diameter: 75 mm
Max. focal length: 85 mm
Min. focal length: 18 mm
Focal length: Permanent
Lens type: Standard
Zoom ratio: 47.2x
Max viewing angle: 28.3 deg.min
Minimum focus distance: 0.85 m
Auto focus: There is
Focal length of prime lens: 85 mm
Bayonet: Canon EF
Filter thread diameter: 58 mm
Aperture F at min. focal length: 1.8
Minimum aperture F: 22
Number of aperture blades: 8
Number of element groups: 7
Number of elements: 9