Thank you for the quick reply.

As I explained, the 4 cameras all have 30 IR light emitting bulbs/diodes. They most certainly do emit light, at a frequency of 850 nm. It is not a camera with just a "film" or something, it actually projects a fairly large amount of infrared light onto whatever it is pointed at, causing it to become illuminated in night vision mode. To the human eye, this light being projected is invisible (a red glow can be seen from the bulbs) but that light is most certainly landing on whatever you point it at.

Without the lights on, the camera becomes useless at night lol. So motion capture would then be out of the question unfortunately, but good idea!!

I hate to say it, but Ed's article (which I had found also) is very misleading as absolutely every commercially available night vision camera has the IR light emitters. None of them are the type that "records a photo of the infrared rays emitted by the objects in the picture." They all actually emit artifical IR rays at a frequency of 850 nm, and then are able to pick up the reflections of the artificial light.

Does anybody know how to get ahold of this Ed guy? He seems to be the expert in these matters.

Thanks again for your help, and will be glad to hear any other opinions as well!!

Sincerely,
Jason