Sigma AF 28-300mm f/3.5-6.3 DG MACRO Pentax KA/KAF/KAF2

Weight: 460 g
Brand: Sigma
Description: Mount: Pentax KA/KAF/KAF2/KAF3, lens type: standard, focal length: variable, autofocus, min. focal length: 28 mm, max. focal length: 300 mm, aperture F at min. focal length: 3.
Type: Lens
Functions: Focusing motor for Nikon F, macro mode, internal focusing
Length: 86 mm
Diameter: 74 mm
Max. focal length: 300 mm
Min. focal length: 28 mm
Focal length: Variable
Lens type: Standard
Zoom ratio: 10.7x
Max viewing angle: 75.4 deg.min
Minimum focus distance: 0.5 m
Auto focus: There is
Bayonet: Pentax KA/KAF/KAF2/KAF3
Filter thread diameter: 62 mm
Aperture F at max. focal length: 6.3
Aperture F at min. focal length: 3.5
Minimum aperture F: 22
Number of aperture blades: 8
Minimum viewing angle: 82 deg.min
Number of aspherical elements: 4
Number of element groups: 13
Number of low dispersion elements: 2
Number of elements: 15