Was at harvey norman today, and noticed a big sigma sitting in the cabinet, it was begging me to try it out. Turns out it was the Sigma 120-400. I Loved it, after i asked the salesman to stick it on the 5D i took some shots with it instore. I was very impressed with the quality of the actual lens and very impressed with the speed of the AF. i think i shot at 1/60 F5.6 400mm with ISO400. I'm not sure if OS was on or not, but it was crystal clear.
Just wondering if anyone has actually purchased this lens, if so any pro's or con's with it i should be aware of before i decide to waltz down there and purchase it?