| Latest Review Posted | Tamron SP AF XR LD Aspherical IF Di II 17-50mm F2.8
This lens can get very good pictures when everything aligns. When the focus is right, sharpness and image quality are great, although can accent the greens a bit too much. However, I want to highlight 2 major issues:
1. Autofocus is terribly inconsistent. It often misses focus, especially if light is at all low. This means shots are often very soft, undercutting the potential sharpness. I got a much higher keeper rate with the 18-135. Also, the autofocus is noisy - and when it is noisy and inaccurate, there is truly nothing to like about the autofocus.
2. There is a screw inside the lens which keeps getting loose and locks the zoom up. I've had to take the lens apart twice to reattach the screw, and I can feel it starting to catch a third time. Too much cost cutting with this lens. Because of its decent wide open performance, I plan to lock the whole lens to 17mm @ infinity focus, and use it only as an Astro lens for Milky way shots. |
