The Tiffen 4 x 5.65" 81A Light Balancing Filter reduces colour temperature by 200K to slightly warm the image to match the colour quality of the lighting. By using an 81A filter, you can achieve a 3200K balance when the dominant light source is 3400K. The warming effect of this filter requires a 0.3 stop increase in exposure for normal results.

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


- Light balancing filter that decreases colour temperature and provides a warming effect.
- Subtracts 200K to achieve a 3200K colour balance from 3400K lighting.
- Filter factor of 1.3 requires a 0.3 stop increase in exposure.


Specifications