Sigma AF 50mm f/1.4 EX DG HSM Canon EF

Weight: 505 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: 68.2 mm
Diameter: 84.5 mm
Focal length: Permanent
Lens type: Standard
Max viewing angle: 46.8 deg.min
Minimum focus distance: 0.45 m
Auto focus: There is
Focal length of prime lens: 50 mm
Bayonet: Canon EF
Filter thread diameter: 77 mm
Aperture F at min. focal length: 1.4
Minimum aperture F: 16
Number of aperture blades: 9
Number of aspherical elements: 1
Number of element groups: 6
Number of elements: 8