Sigma 30mm f/1.4 DC DN Contemporary Micro 4/3

Weight: 265 g
Brand: Sigma
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: 73 mm
Diameter: 65 mm
Max. focal length: 16 mm
Min. focal length: 14 mm
Focal length: Permanent
Lens type: Wide angle
Zoom ratio: 11.4x
Minimum focus distance: 0.3 m
Auto focus: There is
For non-full frame cameras only: Yes
Focal length of prime lens: 30 mm
Bayonet: Micro 4/3
Filter thread diameter: 52 mm
Aperture F at max. focal length: 1.4
Aperture F at min. focal length: 1.4
Minimum aperture F: 16
Number of aperture blades: 9
Number of aspherical elements: 2
Number of element groups: 7
Number of elements: 9