Tamron SP AF 17-50mm f/2.8 XR Di II LD VC Aspherical IF B005E Pentax KA/KAF/KAF2

Brand: Tamron
Description: Mount: Pentax KA/KAF/KAF2/KAF3, lens type: standard, focal length: variable, autofocus, for non-full-frame cameras only, image stabilization, min. focal length: 17 mm, max.
Type: Lens
Functions: Focusing motor for Nikon F, ultrasonic motor, internal focusing
Length: 94.5 mm
Diameter: 79.6 mm
Max. focal length: 50 mm
Min. focal length: 17 mm
Focal length: Variable
Lens type: Standard
Zoom ratio: 2.9x
Max viewing angle: 78.45 deg.min
Minimum focus distance: 0.29 m
Auto focus: There is
Image stabilization: There is
For non-full frame cameras only: Yes
Bayonet: Pentax KA/KAF/KAF2/KAF3
Filter thread diameter: 72 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: 7
Minimum viewing angle: 31.11 degrees min
Number of element groups: 14
Number of elements: 19