Olympus ED 50mm f/2.0 MACRO 1:2

Weight: 300 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: Focusing motor for Nikon F, macro mode
Length: 61.5 mm
Diameter: 71 mm
Focal length: Permanent
Lens type: Macro lens
Max viewing angle: 24 degrees min
Auto focus: There is
Focal length of prime lens: 50 mm
Bayonet: 4/3
Filter thread diameter: 52 mm
Aperture F at min. focal length: 2
Minimum aperture F: 22
Number of aperture blades: 7
Security: Dustproof, frost resistance, moisture protection
Zoom in macro mode: 0.52
Minimum focusing distance in macro mode: 0.24 m
Number of element groups: 10
Number of low dispersion elements: 1
Number of elements: 11