I have a sigma 28-300 and although I didn't expect much from this kind of superzoom I must say that I was disapointed. All photos where both soft and fuzzy (kind of hard to explain it).
Regarding photos you have posted in the other thread, I just have 2 simple questions:
1. Did you use lens hood?
2. Did you use any filter (UV, protective, etc).
The softness comes many times if you have a well lit scene, with rather high dynamic range (shooting towards the source of light), perhaps with some light coming from the side and get diffuzed on a protective filter giving that "hazy" look you seem to have in your photos. So try to take a photo with lens hood, no filter and with your main source of light in the back. Add then filter and compare the result and so on...
Regarding those "superzooms" thus far I have found one that is virtually a stellar performer: Sigma 50-500mm f4-6.3 (nicknamed Bigma). But it is by no means a cheap lens.
On the other hand if you still want to keep your kit to a couple of zooms, you can try tamron or sigma 17-50mm f2.8, tamron 28-70mm or some 17/18-70mm f2.8-4. For longer focal range there is DA 55-300mm, but even a Sigma 70-300mm f4-5.6 APO macro (super of you can find it) is a great lens.
Last edited by stanislav; 03-19-2012 at 07:44 AM.
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