This saturday my cousin has an indoor track meet. He's a pole vaulter, and I promised I'd be there with my camera. I'm not sure how well the lighting will be. It's at a prestigious college with a huge football stadium and hockey rink, but i've never been inside their other sports facility. I'm not sure how far away from the action I will be. I'm definitely going to take my tripod and the only 2 lenses i own. does anyone have any tips/pointers that would help me in low light indoor action shots?