NIR-pass filters
All the near-infrared (NIR) long-pass filters described in this post are absorptive glass filters and sold for special photography effects. All modern photography digital cameras have internal UVIR-cut filters. Use of these filters requires special film, special digital cameras or modified DSLR or DML cameras. Some filters can be used with unmodified digital cameras with very long exposure times. Few normal camera objectives are designed to work well in NIR. …