These were taken with a point-and-shoot (Kodak Easyshare M863) that I modified. It's actually quite easy to modify a camera to capture a wide spectrum of light: you just have to take it apart, remove a little tiny filter, and manage to put it back together. Then, to capture in infrared (or any other band) you add your own filter. (I used Blue Tack and the cheapest one I could get on AliExpress.)
