I have the Sigma 50mm Macro EX and couldn't be more pleased with it. Sure I would prefer the equivalent Pentax but I'm happy to have paid 1/3 the price. Sigma has had poor, lower quality, non compatible lenses in the past but do any of the newer Sigmas still have these problems? Most reviews I have seen of the EX and DG seem to report at least good results.
So has anyone had poor results with a late model Sigma lens? Powell
