Pentax SMC D FA 645 55mm f/2.8 AL IF SDM AW

Weight: 416 g
Brand: Pentax
Description: Bayonet mount: Pentax 645, lens type: standard, focal length: fixed, autofocus, prime lens focal length: 55 mm, aperture F at min. focal length: 2.80, aperture F at max. focu
Type: Lens
Functions: Ultrasonic motor
Length: 81.3 mm
Diameter: 68.2 mm
Focal length: Permanent
Lens type: Standard
Minimum focus distance: 0.5 m
Auto focus: There is
Focal length of prime lens: 55 mm
Bayonet: Pentax 645
Filter thread diameter: 67 mm
Aperture F at max. focal length: 2.8
Aperture F at min. focal length: 2.8
Minimum aperture F: 22
Number of aperture blades: 9
Number of element groups: 7
Number of elements: 9