Had bought at Saturn for my Nikon D5100 me the Tamron. Primarily, of course, to "play" at the telephoto end to even with perfect weather and sunshine, the rejection rate for me was unacceptable. As for the processing there is nothing to complain about, but I'll buy it not to "touch up" to a telephoto it should fulfill its function Simple tile. And this is where I can unfortunately nothing positive to report. Blurred images and an AF does not know which way I drive because now times not excuse the competitive price. Did it immediately to a Nikon AF-S DX Nikkor 55-300mm 1: 4,5-5,6G ED VR exchanged. Sure, in every respect a different class, of course, price. But who had both lenses times on the camera and the difference sowol compares the handling as well as in the quality of the photos, the like waiting a little longer, saving on the more expensive Nikon. I can in any case despite the many good reviews only this lens, at least for the D5100, advise.