_x005f_x000D_ _x005f_x000D_ RYH 52-82mm IR680 IR720 IR760 IR850 IR950 Infrared Infra-red IR Filter 720nm Fun Artistic Photography Camera Lens Filter _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ The infrared filter is used to block visible light, only through infrared ray, take pictures out like black and white photos, but has a unique color again. _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ This IR filter can block all visible light under 720 nm. 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. _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ 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 photos. _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ You need to know: _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ 1000nm is suitable for low latitudes and strong light use. _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ 950nm is suitable for outdoor and strong light use. _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ 850nm is suitable for outdoor and not too strong light use. _x005f_x000D_ _x005f_x000D_