| I had concidered the Sigma and bought the Tamron because of the price and reviews. I have now had the lens 2 weeks and it is going back also because of front focus issues, no test charts just looking at the shots was enough, I tried differant settings and techniques but not much better, shot comparitive pics this morning against my 70-300 Sigma 4.5-5.6 and the Sigma won hands down this should not have happened. |