Sigma AF 30mm f/2.8 EX DN Sony E

Weight: 135 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: 38.6mm
Diameter: 60.6mm
Focal length: Permanent
Lens type: Standard
Minimum focus distance: 0.3 m
Auto focus: There is
For non-full frame cameras only: Yes
Focal length of prime lens: 30 mm
Bayonet: Sony E
Filter thread diameter: 46 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
Minimum viewing angle: 50.7 deg.min
Number of element groups: 5
Number of elements: 7