Sigma 45mm f/2.8 DG DN Contemporary Leica L

Weight: 215 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
Length: 46.2 mm
Diameter: 64 mm
Focal length: Permanent
Lens type: Wide angle
Minimum focus distance: 0.24 m
Auto focus: There is
Focal length of prime lens: 45 mm
Bayonet: Leica L
Filter thread diameter: 55 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: 7
Number of aspherical elements: 2
Number of element groups: 7
Number of elements: 8