Digital Cameras, well some of the older ones, are good for Infrared Photography.
The sensors in digicams are naturally sensitive way into the IR typically 900nm or 1000nm. But, the camera manufacturers have to cut everything out above about 720nm else the pictures won't look right. They use an IR 'cut' filter.
But some cameras don't have very efficient IR cut filters, including my favorite for Digital IR - the Olympus Camedia C2020Z. Get one from eBay, get a Hoya R72 filter for 'standard' IR or the B+W 093 filter for 'extreme' IR, and off you go! It is sufficiently sensitive to IR that you can handhold.
With the Hoya you can leave the camera set to take (false) color, or you can use black and white. The B+W filter really does need to have the camera on black and white.
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