Pentax SMC FA 400mm f/5.6 ED IF

Weight: 1140 g
Brand: Pentax
Description: Mount: Pentax KA/KAF/KAF2/KAF3, lens type: telephoto, focal length: fixed, autofocus, prime lens focal length: 400 mm, aperture F at min. focal length: 5.60, functions: focus
Type: Lens
Functions: Focusing motor for Nikon F, internal focusing
Length: 225 mm
Diameter: 150 mm
Focal length: Permanent
Lens type: Telephoto lens
Max viewing angle: 62 degrees min
Minimum focus distance: 2 m
Auto focus: There is
Focal length of prime lens: 400 mm
Bayonet: Pentax KA/KAF/KAF2/KAF3
Filter thread diameter: 77 mm
Aperture F at min. focal length: 5.6
Minimum aperture F: 45
Number of element groups: 8
Number of elements: 9