Samyang 100mm f/2.8 ED UMC Macro Pentax K

Weight: 710 g
Brand: Samyang
Description: Mount: Pentax KA/KAF/KAF2/KAF3, lens type: macro lens, focal length: fixed, prime lens focal length: 100 mm, aperture F at min. focal length: 2.80, aperture F at max. focal length: 2.80
Type: Lens
Functions: Macro mode
Length: 121.6 mm
Diameter: 72.5 mm
Focal length: Permanent
Lens type: Macro lens
Minimum focus distance: 0.307 m
Focal length of prime lens: 100 mm
Bayonet: Pentax KA/KAF/KAF2/KAF3
Filter thread diameter: 67 mm
Aperture F at max. focal length: 2.8
Aperture F at min. focal length: 2.8
Minimum aperture F: 32
Number of aperture blades: 9
Zoom in macro mode: 1
Number of element groups: 12
Number of low dispersion elements: 1
Number of elements: 15