Okay, so I will be getting a d80 soon (I have a d40 now) and decided to help out my local airsoft forum by photographing a big event in feb. So I am wondering if I should buy a new lens or if my 50mm is perfect. Just for people who dont know what airsoft is, its like paintball, and would be held outdoor in the snow. I would like to keep a distance from the players (20-40 feet). If the 50mm is not good, what lens would I be able to use for this + a general use lens when I go on vacation. Help is appreciated.