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The Grip Book, 5th Edition by Michael G. Uva

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6 Filters and Gels

Fluorescent Light Filters

Standard cool-white or daylight fluorescent tubes offer a reasonable approximation of photographic daylight except for their excessive green content. Two separate techniques are available to deal with this situation: (1) balance all sources to the fluorescent or (2) balance the fluorescent to the sources.

Tungsten Conversion Filters

Rosco Tungsten Conversion Filters convert incandescent 3200 K sources to nominal daylight (aka 5600 K). These filters offer a deep-dyed base for optical clarity and high-heat stability. They are about 100 sq. ft. (54 in. wide).

Rosco Product 3304 is applied to windows or daylight sources and 3306 is applied to 3200 K sources to balance them to the fluorescent lights. Rosco ...

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