Sigma AF 30mm f/1.4 EX DC Pentax KA/KAF/KAF2

Weight: 430 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: 59 mm
Diameter: 75.5 mm
Focal length: Permanent
Lens type: Standard
Minimum focus distance: 0.4 m
Auto focus: There is
For non-full frame cameras only: Yes
Focal length of prime lens: 30 mm
Bayonet: Pentax KA/KAF/KAF2/KAF3
Filter thread diameter: 62 mm
Aperture F at min. focal length: 1.4
Minimum aperture F: 16
Number of aperture blades: 8
Minimum viewing angle: 45 degrees min
Number of aspherical elements: 1
Number of element groups: 7
Number of low dispersion elements: 2
Number of elements: 7