The Tiffen 4 x 5.65" 85B colour conversion filter helps reduce colour temperature from 5500 to 3200K, allowing the use of tungsten-balanced film in daylight conditions. The warming effect of this filter requires an exposure increase of 0.6 stops for normal results.

This filter is manufactured using ColorCore technology, a process that involves laminating the filter substrate between 2 pieces of optical glass and grinding it flat to a tolerance of 1/10,000th of an inch. It measures 4 x 5.65" / 101.6 x 143.5 mm.


- The colour conversion filter reduces colour temperature and provides a warming effect.
- Converts 5500 to 3200K for using tungsten-balanced film in daylight conditions.
- Filter factor of 1.6 requires an exposure increase of 0.6 stops.


Specifications