D5100 + Sigma 50-200 lens vignetting problem
I just bought the 5100 and SIGMA 18-200mm F3.5-6.3 II DC OS HSM lens. Tested it with a Hoya polarizer and found the vignetting to be quite bad. I returned the filter and am not sure if I should get another one or what to get. Do others using the same camera / lens combo use a polarizer as well, and can you recommend a filter that works well with the lens?