Rokinon 8mm f/2.8 UMC Fisheye II Samsung NX RK8MBK28-NX

Weight: 290 g
Brand: Rokinon
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: Internal focus
Length: 64.4 mm
Diameter: 60 mm
Focal length: Permanent
Lens type: Ultra wide angle fisheye
Minimum focus distance: 0.3 m
For non-full frame cameras only: Yes
Focal length of prime lens: 8 mm
Bayonet: Samsung NX
Aperture F at max. focal length: 2.8
Aperture F at min. focal length: 2.8
Minimum aperture F: 22
Number of aperture blades: 6
Number of aspherical elements: 2
Number of element groups: 8
Number of low dispersion elements: 3
Number of elements: 11