Tamron SP AF 17-50mm f/2,8 XR DI II Pentax AF
Di II: Lenses are designed for exclusive use on digital cameras with smaller-size imagers and inherit all of the benefits of our Di products. These lenses are not designed for 35mm film cameras and digital cameras with image sensors larger than 24mm x 16mm.

The SP AF17-50mm F/2.8 is a lightweight, compact, fast standard zoom lens designed exclusively for digital SLR cameras, expanding the product concept of the popular SP AF28-75mm F/2.8 zoom lens.

In addition, portrait shots are made beautiful with the natural out-of-focus effect characteristic provided by the fast F/2.8 aperture. Additionally, a broader photographic expression through the use of faster shutter speeds as a result of the maximum aperture offers enhanced photographic pleasure. The lens boasts one of the best close-up shooting performances in the class of fast standard zoom lenses designed exclusively for digital cameras and featuring an F/2.8 maximum aperture throughout the entire zoom range, to ensure stress-free photographic shots at all focal lengths and distances.

Lens Construction (Groups/Elements) 13/16
Angle of View 78°45'-31°11' (APS-C size equivalent)
Type of Zooming Rotation
Diaphragm Blade Number 7 (Circular apertures)
Minimum Aperture F/32
Minimum Focus Distance 10.6in.(0.27m)
Macro Magnification Ratio 1:4.5 (at f=50mm MFD 0.27m)
Filter Diameter ø67
Weight 430g (15.2oz)
Diameter x Length ø2.9 x 3.2in.
(ø74.0 x 81.7mm)
Accessory Flower shaped lens hood