Here is a photo of an item many have in North America. It is an infrared diode which emits a beam on infrared light that is invisible to the average human. This type of light is whats common on a standard remote control used for telivisions, stereos and many other electronics. This remote light is about the size of three pieces of rice but with the use of a macro lens its able to take up the whole photo. Technical Details Camera - Canon EOS 40D Film / Media - SanDisk Ultra II 2.0GB Lens - Canon MP-E 65mm f/2.8 1-5x macro Shooting Mode - Manual Tv( Shutter Speed ) - 1/250 Av( Aperture Value ) - 14 Metering Mode - Spot ISO Speed - 100 Focal Length - 65 mm Flash - Off Flash Type - External E-TTL 580ex Flash Exposure Compensation - 0 White Balance - Auto AF Mode - Manual Color Space - sRGB |