If you don't have a field or press pass, might as well forget about it. If you have either, that set up around an end zone for the better opportunity for pictures.
Worst place to try and take pictures (from my experience as player and field guest), if your a paying customer and sitting in the stands, is the the LA Coliseum. Never knew why they never moved the stands closer in the playing field, specially the eastern end, where the clock is.