Canon EF 400mm f/4 DO IS II USM

Weight: 2100 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
Additional Information: Moisture resistant case
Type: Lens
Functions: Focusing motor for Nikon F, ultrasonic motor
Length: 232.7 mm
Diameter: 128 mm
Focal length: Permanent
Lens type: Telephoto lens
Minimum focus distance: 3.3 m
Auto focus: There is
Image stabilization: There is
Focal length of prime lens: 400 mm
Bayonet: Canon EF
Filter thread diameter: 52 mm
Aperture F at min. focal length: 4
Minimum aperture F: 32
Number of aperture blades: 9
Number of element groups: 12
Number of elements: 18