My apologies if this has been discussed already. I shoot video for a local roller derby league and their events occur in at various arenas so I don't have control over lighting. One problem that I have run into frequently is the colour of the light changing. In the course of a few seconds it will go from a cool blue to an orange/pink. I see it happening in the view finder as I film. This makes post production a nightmare. I have tried every setting I can adjust on the camera with little to no effect. My wife shoots stills for the League and while in burst mode she can see the light changing from picture to picture. Anyone have any ideas?