Olympus M.Zuiko Digital ED 12‑40mm F2.8 PRO II

Brand: Olympus
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: 69.9 mm
Diameter: 84 mm
Max. focal length: 40 mm
Min. focal length: 12 mm
Focal length: Variable
Lens type: Standard
Zoom ratio: 3.3x
Max viewing angle: 30 degrees min
Minimum focus distance: 0.2 m
Auto focus: There is
Bayonet: Micro 4/3
Filter thread diameter: 62 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: 84 degrees min
Number of aspherical elements: 1
Number of element groups: 9
Number of low dispersion elements: 2
Number of elements: 14