These external 5 Stop IR ND filters are perfect for adding to an IR conversion to slow down exposure time without stepping down. Useful for long exposure photography. These are high quality polished glass filters, each with standard front and back threads. Available now with anti-reflective coatings. The filters are neutral color, but may change white balance slightly. You may have to set a custom white balance again when using this filter.
Check out our even stronger 9 stop ND filter available here.