All CMOS cameras have an IR filter, for reasons that have nothing to do with people using IR LEDs to fool (some) cameras. In fact, removing the IR filter and re

All CMOS cameras have an IR filter, for reasons that have nothing to do with people using IR LEDs to fool (some) cameras. In fact, removing the IR filter and replacing it with a visible light filter is a cheap way to turn a cheap webcam into a (crappy) night vision camera.