Attached Link: http://en.wikipedia.org/wiki/Infra_red

IR=InfraRed. http://en.wikipedia.org/wiki/Infra_red Some people use an old cheap camera to shoot in IR. All you have to do is take off the low-pass filter (voids warranty - may damage camera*) and put an Infra_Red passthrough filter on the lens. *Do NOT attempt with an expensive camera!

Question the question. Answer the question. Question the answer...

I wish I knew what I was gonna say :oP