Samyang 12mm f/2.8 ED AS NCS Fish-eye 4/3

Weight: 530 g
Brand: Samyang
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
Length: 78 mm
Diameter: 77.3 mm
Focal length: Permanent
Lens type: Ultra wide angle fisheye
Minimum focus distance: 0.2 m
Focal length of prime lens: 12 mm
Bayonet: 4/3
Aperture F at max. focal length: 2.8
Aperture F at min. focal length: 2.8
Minimum aperture F: 22
Number of aperture blades: 7
Number of aspherical elements: 2
Number of element groups: 8
Number of low dispersion elements: 3
Number of elements: 12