Pentax SMC DA 12-24mm f/4 ED ALIF

Weight: 430 g
Brand: Pentax
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, internal focusing
Length: 87.5 mm
Diameter: 84 mm
Min. focal length: 12 mm
Focal length: Variable
Lens type: Wide angle
Max viewing angle: 99 deg.min
Minimum focus distance: 0.3 m
Auto focus: There is
For non-full frame cameras only: Yes
Bayonet: Pentax KA/KAF/KAF2/KAF3
Filter thread diameter: 77 mm
Aperture F at max. focal length: 4
Aperture F at min. focal length: 4
Minimum aperture F: 22
Number of aperture blades: 8
Minimum viewing angle: 6.1 deg.min
Number of element groups: 11
Number of elements: 13