I'm on my school's newspaper and the swim team, and since this is my school's first year having a team, my editors want me to get some good shots of the swim meets. Tonight we had one, and my dad took some shots for me since i couldn't because of my events. I looked at them later, and they were all black. It was shot in RAW at 1/2000 in Tv mode. He told me that the pixels were dancing around when he was taking the pictures on the LCD. I'm guessing that was from the heat up there. If not, what could that be from? And another question, can anyone give me some tips so i can take the pics myself, like is the speed he chose a good one, and should i use a flash?

