A very interesting supertelephoto zoom with a marvelous range. It does not have Vibration Reduction and its widest aperture is f/5 so a tripod is recommended when the lighting is less than good. We don’t recommend it for sports shooting because of the small maximum aperture. However, the Tamron is reasonably lightweight (quite a bit lighter than the Nikon 80-400), quite sharp throughout its zoom range, and can focus as closely as 2.5 meters which can be quite interesting at the 500mm length.
Please note: This lens does not have a built-in autofocus motor. Therefore, it is not fully compatible with Nikon DSLRs such as the Nikon D40, D60, D3100, D5100, etc.