Sigma 105mm f/1.4 DG HSM Art Sony E

Weight: 1645
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: 131.5 mm
Diameter: 115.9 mm
Focal length: Permanent
Lens type: Telephoto lens
Minimum focus distance: 1m
Auto focus: There is
Focal length of prime lens: 105 mm
Bayonet: Sony E
Filter thread diameter: 105 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
Security: Dustproof, waterproof
Number of aspherical elements: 1
Number of element groups: 12
Number of low dispersion elements: 5
Number of elements: 17