The Tiffen 4 x 4" Full Spectrum IRND 0.9 filter is a combination of an infrared control filter and a 0.9 neutral density filter. An IRND is ideal for HD cameras, which have greater sensitivity to low light and, consequently, increased susceptibility to IR contamination. When using a standard neutral density filter to counter the increased light sensitivity offered by the HD sensor, the effects of infrared pollution become more apparent. This filter combines an ND filter with a comparable IR control filter to eliminate infrared light leakage reaching the sensor whilst maintaining the additional exposure benefits of a neutral density filter.

This filter is constructed from Water White glass and is manufactured using ColorCore technology, a process that involves laminating the filter substrate between 2 pieces of optical glass and polishing it flat to a tolerance of 1/10,000th of an inch. This filter measures 4 x 4" / 101.6 x 101.6 mm.


- The infrared control filter helps block infrared pollution affecting the colour fidelity of images; this allows for a wider colour gamut and truer colours, particularly noticeable in the darker regions of the image.
- The 0.9 neutral density filter offers a 3-stop exposure reduction.
- Water White optical glass for excellent clarity.


Specifications