Olympus ED 9-18mm f/4.0-5.6 Micro 4/3

Weight: 155 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
Length: 49 mm
Diameter: 56 mm
Max. focal length: 18 mm
Min. focal length: 9 mm
Focal length: Variable
Lens type: Wide angle
Zoom ratio: 2x
Max viewing angle: 100 deg.min
Minimum focus distance: 0.25 m
Auto focus: There is
Bayonet: Micro 4/3
Aperture F at max. focal length: 5.6
Aperture F at min. focal length: 4
Number of aperture blades: 7
Minimum viewing angle: 62 degrees min
Number of aspherical elements: 2
Number of element groups: 9
Number of elements: 13