... light situations 2.Various Diameters Infrared Filter(Infra-red filter)Camera filter Specification:Infrared Filter IR950,IR850,IR760,IR720Material: High quality ... to filterout all but the infrared rays.2. Infrared filter often used in crime detection, medical photography, detection ... ofdistribution of vegetation, etc.3. For photographer, this filter can be used with infrared film or digital photography ...