Olympus ED 30mm f/3.5 Macro

Weight: 128 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, internal focusing
Length: 60 mm
Diameter: 57 mm
Focal length: Permanent
Lens type: Wide-angle, macro lens
Minimum focus distance: 0.1 m
Auto focus: There is
Focal length of prime lens: 30 mm
Bayonet: Micro 4/3
Filter thread diameter: 46 mm
Aperture F at max. focal length: 3.5
Aperture F at min. focal length: 3.5
Minimum aperture F: 22
Number of aperture blades: 7
Zoom in macro mode: 1
Number of aspherical elements: 2
Number of element groups: 6
Number of low dispersion elements: 1
Number of elements: 7