Sigma AF 28-135mm f/3.8-5.6 ASPHERICAL IF MACRO Pentax KA/KAF/KAF2

Weight: 410 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: 135 mm, aperture F at min. focal length: 3.
Type: Lens
Functions: Focusing motor for Nikon F, macro mode, internal focusing
Length: 75 mm
Diameter: 75 mm
Max. focal length: 135 mm
Min. focal length: 28 mm
Focal length: Variable
Lens type: Standard
Zoom ratio: 4.8x
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: 5.6
Aperture F at min. focal length: 3.8
Minimum aperture F: 22
Number of aperture blades: 7
Minimum viewing angle: 18.2 deg.min
Number of aspherical elements: 1
Number of element groups: 12
Number of elements: 13