Sigma AF 300mm f/2.8 EX DG APO Pentax K/KAF/KAF2

Weight: 2400 g
Brand: Sigma
Description: Mount: Pentax KA/KAF/KAF2/KAF3, lens type: telephoto, focal length: fixed, autofocus, prime lens focal length: 300 mm, aperture F at min. focal length: 2.80, Aperture F at m
Type: Lens
Functions: Focusing motor for Nikon F, internal focusing
Length: 214 mm
Diameter: 119 mm
Focal length: Permanent
Lens type: Telephoto lens
Minimum focus distance: 2.5 m
Auto focus: There is
Focal length of prime lens: 300 mm
Bayonet: Pentax KA/KAF/KAF2/KAF3
Filter thread diameter: 46 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
Number of element groups: 9
Number of low dispersion elements: 2
Number of elements: 11