TAMRON SP AF 17-50mm f/2.8 for Pentax XR Di II LD Asp. (IF)

The new SP AF 17-50mm f/2.8 for Pentax XR Di II LD Asp. (IF) is a high power zoom lens designed exclusively for digital SLR cameras. It provides very high image quality and a high aperture at a total of f/2.8 that is indispensable for portrait photography. It covers a range of 17-50mm or 25-75mm when recalculated on 35mm film.
Specifications:
Mounting type:Pentax-Samsung
Lens Type:
AF lens with variable focus
Minimum focal distance:
17mm
Maximum focal length:
50mm
Number of lenses/groups:
16/13
Maximum aperture:
32
Maximum zoom ratio (1:x):
4.5
Minimum focusing distance:
27cm
Length:
83.2mm
Thread Diameter:
67mm
Weight:
430g
Lens hood type:
Round