When it comes to fast tele zooms, there is only a very limited selection of dedicated DX lenses. One of these rare species is the Tokina AT-X 50-135mm f/2.8... or to be precise, it was, since it is discontinued for a while already.
The AT-X 50-135mm is the result of a cooperation between Tokina and Pentax, which leads to the interesting situation that a Pentax design is also available to users of competing systems. However, the Pentax and Tokina lenses are not completely identical, at least mechanically.
In this review we will have a look at how the lens performs on our current DX test camera, the Nikon D7000.