The Tiffen 4 x 4" IR T1 filter is a near-infrared to infrared control filter designed for digital cinematography. Many digital cameras are designed to maximise their ability to capture red hues, and in this process, near-infrared or infrared contamination can occur. If the proportion of near-infrared or infrared light reaching the sensor of a digital cinematography camera becomes too significant, the results can show undesirable colour shifts, particularly in dark areas of the frame such as shadows where the appearance of black is dominant.

When the Tiffen 4 x 4" IR T1 filter is used, near-infrared light waves starting at 680nm are blocked by approximately 55%. Infrared light waves at higher frequencies are further hindered until an almost flat attenuation is reached at 725-800nm. This process helps ensure that the light falling on the camera sensor is limited to the visible spectrum. Potential near-infrared or infrared colour shifts are prevented or minimised, which preserves colour accuracy throughout the frame. Whilst a Tiffen IR T1/2 filter that blocks infrared light waves up to 775 nanometres is sufficient for many cameras, others may have sensors that require a higher degree of near-infrared and infrared control, such as that provided by a Tiffen IR T1 filter.

This filter is constructed from Water White glass for increased clarity as well as colour fidelity. It is manufactured using ColorCore technology, a process that involves laminating the filter substrate between 2 pieces of optical glass, ground flat to a tolerance of 1/10,000th of an inch.


- Designed for use with CCD or CMOS sensors to filter near-infrared and infrared light pollution that causes colour shifts frequently associated with high-definition recording
- Blocks near-infrared light waves starting at 680nm by approximately 55% until an almost flat infrared attenuation is reached at 725-800nm
- Constructed from Water White glass for increased optical clarity
- No dichroic coatings to further ensure colour accuracy
- 1.5x filter factor reduces exposure by 0.6 stops
- Padded pouch included for storage and transport


Specifications