Olympus ED 12-50mm f/3.5-6.3 EZ

Weight: 211 g
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: Internal focus
Length: 83 mm
Diameter: 57 mm
Max. focal length: 50 mm
Min. focal length: 12 mm
Focal length: Variable
Lens type: Wide angle
Zoom ratio: 4.2x
Max viewing angle: 84 degrees min
Minimum focus distance: 0.2 m
Auto focus: There is
Bayonet: Micro 4/3
Filter thread diameter: 52 mm
Aperture F at max. focal length: 6.3
Aperture F at min. focal length: 3.5
Minimum aperture F: 22
Number of aperture blades: 5
Minimum viewing angle: 24 degrees min
Number of aspherical elements: 1
Number of element groups: 9
Number of low dispersion elements: 1
Number of elements: 10