Instead of expensive silicon, this thermal camera uses a flashlight with an RGB LED, a cheap IR temperature sensor, and a camera set up to take long exposures. By shining this flashlight/IR sensor ...
In traditional photography, long exposure photos are exactly like they sound. The camera shutter is kept open for a longer period than usual, keeping the film or sensor exposed for an extended ...
This opens up a log of possibilities for long-exposure photography, and [Jippo] has found the best use so far: long exposure astrophotography for capturing meteors, satellites, and star trails.