You may have heard rumours about something we’re calling Pi NoIR ( Pi , no i nfra r ed) – it’s been a very badly kept secret. Some months ago we featured some work that was being done at Reading Hackspace , where members were removing the infrared filter to use the camera to sense infrared signals, and for low-light work, especially with wildlife.

See original here:
Infrared camera – you asked us, so we’re making them!