Light Balancing Filters
81 Series
The 81 series filters are useful with daylight corrected film in cool light conditions. As letters advance, density and warmth increases.
81A, 81B, 81C, & 81EF
- Creates warmer tones and brighter colors on overcast days or when shooting with electronic flash
- Great for improving flesh tones
- 81A converts tungsten 3200 K film to 3400 K lighting
Filter | Conversion | Exposure increase |
81A | 3,400 to 3,200 K | 1/3 stop |
81B | 3,500 to 3,200 K | 1/3 stop |
81C | 3,600 to 3,850 K | 1/3 stop |
81EF | 3,850 to 4,140 K | 2/3 stop |