I am not a professional photographer by any stretch of the imagination, I am a lowly Dad trying to take better images of his children in their quest for manhood. The problem I have is, how to improve images taken under sodium vapor lighting. The boys, 17 and 19 compete in Karate. Every single auditorium we go to uses the same style of lighting, which gives the images a ghastly yellow cast which I cannot improve. They competition has 4-10 rings going on at the same time, so you have to move around to get a clear shot of the various age groups and directions that they will perform. The lights also change so much based on where you are at within the auditorium, that it can range from a jaundice color to the ghastly color I spoke of. I have tried every setting on my Nikon Coolpix 8800, and every thing I know about Photoshop, which is not much. Would someone suggest a white balance setting for this light, or point me in a direction to learn more. I have searched the forum before I added the post, but I did not find anything that helped my plight. Thank you. Vince