[Cuog]

I would check to make sure that your camera is focused. When you are a large distance away(like on the field) that makes a difference but when you are closer like in the pits its much easier for the camera to see the lights.

Also check the camera manual to see if there is anything that may help you adjust for the different light, I know there are some but I don't remember how to use them atm, and my copy of the manual is AWOL.