Yep, that's how I feel after taking my Canon 60D to the nearest hockey rink near my home.
After trying 4 lenses none of em could do a good job at having a good exposure.
Got a 28-105mm, a 50mm, a 28-200mm and my Tokina wideangle 11-16.
The best I could get from the 10th row, was 1/30....iso 6400 even at f2.8
So now I know I need a monster lens, gee, that means big buck...but I will rent one before doing any moves...
Is there a major difference over the Canon 100-400 4,5 vs 100-400 2,8
And how about Sigma lens? Any good for sharp pics???