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      Filters that change, alter, or balance the color content of light . 

   Note-Worthy  C O L O R S     
  Corals
 Corals were established in 1938 by the Harrison Optical company. They are a variation of the Kodak 85 and are used as a dual purpose filter.
 First and foremost, they serve as color-balancing filter for cinematographers when they need to maintain the same color(Kelvin) temperature throughout a day’s shoot .
Second, because of their unique pastel range, corals are used to produce various sunset and warming effects. A complete set of Corals can include up to 12 densities and are available in solids graduates, attenuators, and horizon stripes.
 

             
   Coral 2 at noon              Coral ½ at 4:30             Coral Grad  at 6:30  
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 • Color Compensating  Filters

CC filters are used to compensate for unusual lighting situations, some of which may employ two or more different types of illumination in the same scene. Because of their extended range, as well as their full and half-incremental densities, CC filters are a great tool for creating delicate adjustments of the primary and secondary colors. . . . The Filter Gallery is pleased to offer complete sets of glass cc filters in the
primary
(blue, red, green) and secondary (magenta, cyan, yellow) colors.
 
                   
          Primary colors                              Secondary colors 
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  Color Effects Filters
Color-effects filters are an interesting range of warming, cooling, and enhancing colors used to achieve a desired look. Three classic examples are: the sepia filter, the red enhancer, and the cool-day-for-night.
The sepia filter, with its light brown tone, is often a preferred choice for achieving a “turn-of-the-century” look. The red enhancer, with its dramatic-producing properties, is an ideal filter for intensifying reds, oranges, and earth-tone colors. The cool day-for-night filter, with its striking blue tone, enables camera professionals to replicate a moonlight effect during day-time shooting. 

                 
   Tiffen Sepia 2             Schneider Red Enhancer        Tiffen Cool-day-4-Night
 
Other popular effect colors  include: Tobacco, Chocolate, Straw, Gold, Antique Suede, Whiskey, Tropical Blue, Storm Blue, Cool Blue, Artic Blue, Gray/Blue, and Peacock Blue, most of which are available in 3 grades (light, medium, and dark). 

                     

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 •  Graduated Colors
Graduated color filters are half clear and half color with the color portion gradually progressing into its identifying density. 
They are used to spice-up a washed-out sky or add color to a half a scene. They are available in a wide range of colors and are supplied in soft or hard edges. A soft edge is used with wide lenses, while the hard edge is designed  for long lenses.
    
  
   
          
Harrison Graduated Sunset                                                 

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   Color Conversion Filters
Conversion filters are used to “convert” the light reaching the film or chip to match the light source being used to illuminate the subject.
They come in two strong colors: the 85 (orange) series which permits tungsten film (3200 – 3400 K) to be used in outdoor lighting and the 80 (deep blue) series which permits daylight film (5500-5600 K) to be used under tungsten lighting condition.

             85 Series                                                 80  Series
                       
     85          85C         85B                 80A        80B           80C         80D

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   Color Balancing Filters
color balancing filters are a lighter version of the 85 and 80 series. They are used to selectively add a small amount of warmth or coolness to an already balanced scene. They are identified as the 81 (amber) series and the 82 (light blue) series and are often referred to as warming and cooling  filters. 
                  
   81A        81B         81C         81D               82A         82B         82C         82D

     
                           
   81 Warming Series          
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  • Tiffen 812 Filter                  
                   
Developed in the early 1980s, the Tiffen 812 filter warms skintones to produce a more natural-looking complexion. It is particularly effective on caucasians with pale white skin and is ideal for photographing people in open shade. 


Tiffen 812

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• Vari-COLOR Polarizers
are two color polarizing foils, carefully positioned and laminated between two pieces of optical glass. These unique foils cause light-reflecting areas in outdoor scenes to produce dramatic color effects, even under low-light situations.
The Filter Gallery is pleased to make available three exciting blue combinations: Lime/Blue, Red/Blue, and Yellow/Blue
For motion-picture and broadcast professionals, the Filter Gallery supplies Vari-color polarizers in 138mm mounts and  4x5.650 pola frames.
               
                                  Lime-Blue      Red-Blue      Yellow-Blue
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 • Combination Color Filters

  Camera professionals very often experience situations that require the use of two or more necessity-type filters in a scene, but in certain instances, like arieal shoots, they are limited to the number of filters that can be mounted in front of the lens.
 To help accomplish this, filter manufacturers offer combination color filters. These filter types generally constitute a polarizer or a neutral density filter in combination with a popular conversion or light balancing filter. 
Classic examples include an 85/Pola and 81EF/ND as shown in the following graphic.

                
      85/Pola       81EF/ND        812/Pola

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