Sigma AF 55-200mm f/4-5.6 DC HSM Pentax KA/KAF/KAF2

Weight: 310 g
Brand: Sigma
Description: Bayonet mount: Pentax KA/KAF/KAF2/KAF3, lens type: telephoto, focal length: variable, auto focus, for non-full frame cameras only, min. focal length: 55 mm, max. focal length: 200mm
Type: Lens
Functions: Focusing motor for Nikon F, macro mode
Length: 87.1 mm
Diameter: 71.5 mm
Max. focal length: 200 mm
Min. focal length: 55 mm
Focal length: Variable
Lens type: Telephoto lens
Zoom ratio: 3.6x
Max viewing angle: 25.5 deg.min
Minimum focus distance: 1.1 m
Auto focus: There is
For non-full frame cameras only: Yes
Bayonet: Pentax KA/KAF/KAF2/KAF3
Filter thread diameter: 55 mm
Aperture F at max. focal length: 5.6
Aperture F at min. focal length: 4
Minimum aperture F: 22
Number of aperture blades: 8
Minimum viewing angle: 7.1 deg.min
Number of element groups: 9
Number of elements: 12