Well today I rented a lens to see what it is like to shoot with the big dog, I rented the 400mm 2.8 . Man I love this lens too bad it cost too much. A local shop rents them for 40 bucks a day.i found it was tooooooo big for some shots and the umpires refused to let me on the inside of the fence. so once again these are all shot through the fence. I have new respect for sports photogs. this stuff is not easy