Canon EF-S 18-200mm f/3.5-5.6 IS or Sigma 18-250mm f3.5-6.3 DC for EOS 50D?
Thinking of swapping my Canon EF-S 18-135mm for something with a bit more zoom. Saw an article that recommended Canon EF-S 18-200mm f/3.5-5.6 IS or Sigma 18-250mm f3.5-6.3 DC for my 50D. Anything that makes one stand out over the other? Or other reco...