I'm very satisfied with the lens facing extensive testing. Image quality is surprisingly good for a lens with this focal length range. Very good indeed. In my view, the quality of minimally weaker until full focal length. Minimal to say that it only noticeable upon close inspection on the PC at high magnification. Autofocus is fast and reliable. The ring for the focal length is relatively stiff - I think that's very good. But is sicherlcih taste. Contrast, manual focusing smoothly. Value for money is outstanding with this lens. Lens Hood is also included. This is my first Tamron lens and has fully convinced me. With this lens, you can see it really left, if any self-proclaimed professionals gossip about soup zoom.