general explanations of full spectrum and infrared cameras
Normal digital cameras use filters to limit the color spectrum that reaches the sensor to the Spektrum visible to humans (~380-780nm). By expanding or Replacing the filter turns it into a “full spectrum camera” that records the entire Spektrum that the sensor can capture (~350-1100nm). Cameras that have a filter thread in front of the lens can use an infrared filter to block Spektrum that is visible to people and then "see" - depending on the filter selected, 680..720..800-1100nm, i.e. a range that is otherwise not visible to people. In the "infrared camera" conversions in my shop, a ~700nm blocking filter has already been installed.
For full spectrum or There are various applications for infrared cameras. In addition to surreal recordings for artistic purposes, museums and auction houses can “examine” individual layers of paint in old paintings in order to better understand how a painting was created. In astrophotography, space has long been recorded in the infrared Spektrum ; solar panels can be examined for their quality by being energized and then glowing slightly in the infrared Spektrum ("electroluminescence"). In conjunction with an infrared illuminator, the cameras are also often used as night vision cameras by hunters. Full-spectrum cameras are also part of the basic equipment for paranormal investigators/ghost hunters for investigating old walls and lost places.