Mamiya Sekor C 45mm f/2.8 M645

Weight: 475 g
Brand: Mamiya
Description: Mount: Mamiya 645, lens type: wide-angle, focal length: fixed, prime lens focal length: 45 mm, aperture F at min. focal length: 2.80
Type: Lens
Length: 75 mm
Diameter: 70.5 mm
Focal length: Permanent
Lens type: Wide angle
Max viewing angle: 76 degrees min
Minimum focus distance: 0.45 m
Focal length of prime lens: 45 mm
Bayonet: Mamiya 645
Filter thread diameter: 67 mm
Aperture F at min. focal length: 2.8
Minimum aperture F: 22
Number of element groups: 7
Number of elements: 9