Sony DCR-TRV110 - Receive Infrared & Visible Light

The Sony DCR-TRV110 Nightshot switch can be jammed half-way between "Off" and "On" which disables the infrared LEDs and allows both visible light and infrared light to hit the CCD.

This is handy for shooting in low-light conditions, when you want to use all the available light possible, but don't want the distracting "beam" of infrared shooting from the front of the camera.

MPEG-4 (QuickTime preview),  MPEG-2 (original).

Searching Google for infrared webcam hack turns up articles on how to enable webcams to receive infrared.