I have a Canon EOS 3 and Elan 7 and I am soon going to Dallas to see a couple of MLB baseball games, A's at Rangers. I was wondering how you go about renting big white lenses and monopods for Canon cameras in such a place as Dallas. Also, would taking such a lens inside a ballpark be acceptable if I am not press? I was thinking a Canon 400mm f/4 and Kodak 800 film would be sufficient. Any civilian ever rented lenses and brought them into a sporting event in a stadium? Thanks, J.D.