So I purchased a sigma 10-20 4-5.6 about a month ago. After using it for a bit it seems to have a decentering issue, the sharpness of the left side is looks pretty off to me. Anyway, the store I purchased from won't let me return it telling me its now sigma's problem, which means dealing with CRKennedy. So I've called them up and they want me to send in both my body and the lens.
Now I'm not willing to go through the trouble of sending in my body as well. From all the threads ive read about the 10-20 and decentering (and there are heaps) the issue has been fixed with replacing the lens. From my understanding, decentering occurs when the elements within the lens are not aligned properly, so I fail to see how this has anything to do with my body.
Has anyone had a similar experience? Did you have to send your body in as well? Any other possible ways I can get it fixed?
Argh, I'm just so frustrated!!!