The Tiffen 105mm Coarse Thread Full Spectrum IRND 1.5 Filter is a combination of both an infrared control filter and a 1.5 neutral density filter. An IRND is ideal for HD cameras, which have greater low-light sensitivity and, subsequently, an increased susceptibility to IR contamination. When using a standard neutral density filter to counter the increased light sensitivity afforded 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 the spill of infrared light reaching the sensor while still maintaining the extra exposure benefits of a neutral density filter.
This filter is constructed from Water White glass and is made using ColorCore technology, a process that involves laminating the filter substrate between 2 pieces of optical glass, grinding flat to a tolerance of 1/10,000th of an inch, and mounting to precision metal rings.
- Infrared control filter helps to block infrared pollution from affecting the color fidelity of imagery; this enables a wider color gamut and truer colors, especially noticeable in the darker regions of the image. - 1.5 neutral density filter requires a 5 stop increase in exposure for normal results. - Water White optical glass for excellent clarity.
IR control / neutral density
105 mm (coarse threads)
1.5 (5 stop)
Helps to balance HD camera's increased low-light sensitivity and susceptibility to red light/IR pollution