Pentax DA 645 28-45mm f/4.5 ED AW SR

Weight: 1470
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
Additional Information: Dust and moisture resistant design
Type: Lens
Functions: Adapted for video shooting, focusing motor for Nikon F
Length: 151.5 mm
Diameter: 99 mm
Max. focal length: 45 mm
Min. focal length: 28 mm
Focal length: Variable
Lens type: Wide angle
Zoom ratio: 1.6x
Max viewing angle: 89 deg.min
Minimum focus distance: 0.4 m
Auto focus: There is
Image stabilization: There is
For non-full frame cameras only: Yes
Bayonet: Pentax 645
Filter thread diameter: 82 mm
Aperture F at max. focal length: 4.5
Aperture F at min. focal length: 4.5
Minimum aperture F: 22
Number of aperture blades: 9
Minimum viewing angle: 63 degrees min
Number of aspherical elements: 2
Number of element groups: 12
Number of low dispersion elements: 2
Number of elements: 17