Neewer 72MM Infrared IR Filter Kit - IR720 + IR760 + IR850 + IR950 - for Canon, Nikon, Pentax, JVC + ANY Camera with a 72MM Filter Thread! Size: 72mm. Compatible with Any filter with a 72mm thread. Material: high quality optical glass The Infrared Filter Kit includes 4 pieces of Infrared filters: 720nm, 760nm, 850nm and 950nm(IR720 IR760 IR850 IR950). Used for photography with infrared films. Infrared film is also sensitive to ultraviolet rays and the shorter wavelengths of the visible spectrum so it is necessary to filter out all but the infrared rays. Infrared filter often used in crime detection, medical photography, detection of distribution of vegetation, etc. For photographer, this filter can be used with infrared film or digital photography to get interesting artistic and sometimes creative photos.