[Chris Hibner]

The retro-reflective tape is very good at only reflecting light back to it's source. That means if you shine a colored light that is right next to the camera at the tape, your camera should only see that color coming from the tape. A ring light that is placed around the lens works best. We've experimented with a ring light and even in horrible lighting conditions (by horrible, I mean bright lights all around and behind the target), the camera was able to pick up the tape quite reliably.