Laowa 100mm f/2.8 2X Ultra Macro APO Lens Canon RF

Weight: 650 g
Brand: Laowa
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: Macro mode
Length: 155 mm
Diameter: 72 mm
Focal length: Permanent
Lens type: Macro lens
Focal length of prime lens: 100 mm
Bayonet: Canon RF
Filter thread diameter: 67 mm
Aperture F at max. focal length: 2.8
Aperture F at min. focal length: 2.8
Minimum aperture F: 22
Number of aperture blades: 13
Number of element groups: 10
Number of elements: 12