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The Tiffen 4.5" Round 85B Color Conversion Filter helps to decrease the color temperature from 5500 to 3200K, allowing the use of tungsten-balanced film in daylight conditions. The warming effect of this filter requires a 0.6-stop increase in exposure for normal results.
This filter is made using ColorCore technology, a process that involves laminating the filter substrate between 2 pieces of optical glass and grinding flat to a tolerance of 1/10,000th of an inch.
Color conversion filter decreases color temperature and provides a warming effect.
Converts 5500 to 3200K for using tungsten-balanced film in daylight conditions.
Filter factor of 1.6 requires a 0.6-stop increase in exposure.
In the Box
Tiffen 4.5" Round 85B Color Conversion Filter
Limited 10-Year Warranty
Table of Contents
Amber color conversion
4.5" / 143.5 mm (diameter)
1.6 (0.6 stop)
Decreases color temperature
For use when photographing with tungsten-balanced film in daylight conditions
5500 to 3200K
Tiffen 4.5" Round 85B Color Conversion Filter Review