Sigma AF 15mm f/2.8 EX DG DIAGONAL FISHEYE Minolta A

Weight: 370 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: 65 mm
Diameter: 73.5 mm
Focal length: Permanent
Lens type: Ultra wide angle fisheye
Minimum focus distance: 0.15 m
Auto focus: There is
Focal length of prime lens: 15 mm
Bayonet: Minolta A
Aperture F at min. focal length: 2.8
Minimum aperture F: 22
Number of aperture blades: 7
Minimum viewing angle: 180 deg.min
Number of element groups: 6
Number of elements: 7