Sigma AF 50mm f/1.4 DG HSM Art Minolta A

Weight: 815 g
Brand: Sigma
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
Length: 100 mm
Diameter: 85 mm
Focal length: Permanent
Lens type: Standard
Minimum focus distance: 0.4 m
Auto focus: There is
Focal length of prime lens: 50 mm
Bayonet: Minolta A
Filter thread diameter: 77 mm
Aperture F at max. focal length: 1.4
Aperture F at min. focal length: 1.4
Minimum aperture F: 16
Number of aperture blades: 9
Number of element groups: 8
Number of elements: 13