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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
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