Sigma customer service is excellent!
Started Feb 21, 2004 | Discussions thread
Senior Member • Posts: 1,487
I also had a 15-30 which was very soft in the lower corners. I took it back, and yesterday bought the new 17-30 EX DG. It appears to be ok, but I havent adequately tested it yet. In fact, I'm off out to do just that now.
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