Color Conversion Filters

Color Conversion Filters:

Sunlight, daylight, incandescent, fluorescent, and other artificial light sources all have color characteristics that vary significantly. Filters give you better images by adjusting for these light variations.

Film and video are rated for a particular color temperature such as that of daylight or tungsten light. Filters are used to correct differences in color temperature between the recording medium and the light source.
 
80 Series
Get the right colors with daylight film when shooting indoors, with tungsten lighting, and without a flash.
 
80A - Balances daylight film for use with most standard tungsten lighting,
          studio lighting and copy stand lighting

80B - Balances daylight film for use with photo flood lamps
 
Filter           Conversion                  Exposure increase

80A          3.200 to 5.500K                     2 stops
80B          3.400 to 5.500K                     2 stops

 
85 Series
Using tungsten film in daylight will produce a bluish cast. The 85 Series will produce natural colors when shooting with tungsten film outdoors. For best results use the filter that most accurately matches your film type.
 
85 - Produces slightly cooler results than the 85B

85B - Converts tungsten film to daylight

85C - Useful as creative warming effect with daylight film in daylight
          Designed to produce cooler results with tungsten film in daylight than
          the 85 or 85B
 
Filter           Conversion                  Exposure increase

85            5.500 to 3.400K                      2/3 stop
85B          5.500 to 3.200K                      2/3 stop
85C          5.500 to 3.800K                      2/3 stop