I was the official photographer for an international magicians convention. I was offered the job because of my long experience in photography (35 years) and because I am a full-time magician and know what to look for in photos. At the convention, I dealt with something new. They were using LED stage lights in some of the performing venues. This caused me a lot of extra work!
Initially, I was excited at how bright the lighting was. I didn't have to crank the ISO too high on my 7D. Then, I started noticing the color balance changing from shot to shot. I hadn't paid attention to the lights themselves so I took a look and confirmed that they were using LED lights.
Here's what I ran into. If I shot at a shutter speed of greater than 1/200 of second, the color balance was all over the place. If I shot at 1/200 of second or below, it was much more consistent - mostly daylight balanced. Unfortunately, I had to drop to 1/160 the of a second to get the most consistency but then I had problems with motion. The performers do move!
The real killer was when they dimmed the lights. Then, the color balance went crazy. Really deep blue/magenta. (Fortunately, not too many acts when with dim lights.)
Now, I basically know what causes the irregular color balance so here's my question: how do I deal with this next year so it's not so much work? I shot all of this in RAW but there was no way to adjust a group of photos all at once because of the differences so I had to work on each photo individually. I had over 1,100 final images and about 20% of those were under the LEDs.
The worst part was that some of the images had three different color balances in a single photo. See the samples below.
If you have dealt with this and have some answers on how to avoid the problems, please post them! (I will be doing this convention again in 2013 and they'll be using the same production company!)
Please keep in mind that the light appeared white on all the performers, even the really dark one was white light just dimmed. These are uncorrected to show you where I started. All of them, except the last one, have at least two different color balances. The last one is the one that was with dim light and you should have seen what using the white balance tool did when you clicked on his black jacket: the temperature slider went all the way to the left and the tint slider went all the way to the right in Adobe Camera Raw.









(I'm not sure of the technology but I do know this doesn't occur with the higher end LED stage lights.)

