Sigma AF 105mm f/2.8 EX MACRO Nikon F

Weight: 460 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: Macro mode
Length: 97.5 mm
Diameter: 74 mm
Focal length: Permanent
Lens type: Macro lens
Auto focus: There is
Focal length of prime lens: 105 mm
Bayonet: Nikon F
Filter thread diameter: 58 mm
Aperture F at min. focal length: 2.8
Minimum aperture F: 45
Number of aperture blades: 8
Minimum viewing angle: 23.3 deg.min
Zoom in macro mode: 1
Minimum focusing distance in macro mode: 0.313 m
Number of element groups: 9
Number of elements: 10