Normal digital cameras limit the color spectrum by filters that arrive at the sensor to the Spektrum visible to humans (~ 380-780NM). By expansion or Exchange of the filter becomes a "full spectrum (full spectrum) camera", which takes up the entire Spektrum , which the sensor can capture (~ 350-1100NM). Cameras that have a filter thread in front of the lens can use infrared filters to block the Spektrum visible to humans and then "see" - depending on the selected intent filter 680..800-1100NM, i.e. an area that is otherwise not visible. A ~ 700NM blocking filter has already been installed in the "infrared camera" conversions in my shop. For full spectrum or There are various applications. In addition to surreal recordings for artistic purposes, individual layers of color of old paintings.
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