Pentax DA 11-18mm f/2.8 HD

Weight: 704 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
Length: 90 mm
Diameter: 100 mm
Max. focal length: 18 mm
Min. focal length: 11 mm
Focal length: Variable
Lens type: Wide angle
Zoom ratio: 1.6x
Max viewing angle: 106 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: 82 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: 9
Security: Dustproof, waterproof
Minimum viewing angle: 74 degrees min
Number of aspherical elements: 2
Number of element groups: 11
Number of low dispersion elements: 2
Number of elements: 16