Most helpful critical review
26 of 37 people found the following review helpful
Very practical lens, if it wasn't for purple fringing and zoom creep
on January 13, 2011
My wife and I used this lens with pleasure for several months at the beginning of 2010, riight into the summer, on a Sony A100, A300 and A330. We didn't know what purple fringing (CA) was and didn't know about many other image quality aspects either, so we didn't look too closely. But you learn and get to be more demanding. Somewhere in the summer I was trying to photograph a sapsucker in a tree with the lens fully extended and aperture at 6.3. Looking at the result, I could hardly find the bird for the purple/dark blue in the picture. Then zoom creep started to set in. Before the lens would lose value too much, we sold it again. We now use a Sigma 70-300mm APO for telelens and have to switch lenses more often, but CA is a thing of the past. Definitely not as practical as before, and I will consider a hyperzoom again for practical reasons, but not this particular model. A newer Tamron model may have better lens coating.
Sigma has its own issues, especially with build quality, so make sure you keep your Amazon receipt for warranty claims if you want to go that route.