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 that is visible to humans (~380-780nm). Through expansion or Replacing the filter turns it into a "Full Spectrum" camera, capturing 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 the Spektrum that is visible to humans and then "see" - depending on the selected attachment filter - 680..720..800-1100nm, i.e. an area otherwise not visible to humans. A ~700nm blocking filter has already been installed in the "infrared camera" conversions in my shop. 

For full-spectrum There are various applications for infrared cameras. In addition to surreal recordings for artistic purposes, museums and auction houses can "xray" individual layers of paint from old paintings in order to better understand how a painting was created. In astrophotography, space has long been recorded in the infrared Spektrum , the quality of solar panels can be examined by energizing them and then emitting something in the infrared Spektrum ("electroluminescence"). In conjunction with an infrared radiator, the cameras are also often used by hunters as night vision cameras. Full-spectrum cameras are also part of the basic equipment for paranormal investigators / ghost hunters to examine old walls and lost places.