| Latest Review Posted | Sigma APO 170-500mm F5-6.3
I choose this lens because I wanted to get some experience with bird photography. In the 8 months that I now own this lens I can only say that the results are disappointing enough to start looking for an alternative, even though the price for something with comparable focal length will probably go through the roof. With my K100D Super and at 500mm maybe 1 out of 10 pictures is sharp, even when shutter times are in the 1/300 or shorter range and when using a tripod. On a forum I found somewhere that this lens really softens above 400mm, so now I try to not go above that to see if that improves sharpness.
I can confirm that there is indeed something wrong with the diaphragma range, at 500mm I cannot go below 6.7. |
