The Tiffen 6.6 x 6.6" 81EF Light Balancing Filter reduces colour temperature by 650K to slightly warm the image to match the colour quality of the lighting. By using an 81EF filter, you can achieve a 3200K balance when the dominant light source is 3850K. The warming effect of this filter requires a 0.6 stop exposure increase 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 6.6 x 6.6" / 167.6 x 167.6 mm.


- Light balancing filter reduces colour temperature and provides a warming effect.
- Subtracts 650K to achieve 3200K colour balance from 3850K lighting.
- Filter factor of 1.5 requires a 0.6 stop exposure increase.


Specifications