Our studio was equipped with 9 cameras with red light strobe rings and 6 cameras with IR rings. We decided to upgrade the setup so that the IR cameras are now switchable to red light strobes. Red light strobes are better for general motion capturing, IR light is better for facial mocap.

This improves the data quality of general mocap takes as all the cameras can be equipped with red light strobes. Camera's CCDs are more sensitive to this color of light, also the cameras aren't so sensitive to any heat sources in the scene - they generally "see farther".

For facial mocap, IR light is essential as red light reflects off the skin and the reflection is almost as strong as the marker's, which makes it very hard to record any reasonable data, on the other hand.