Black and White Filter Guide
 
 
 
Color Temperature of light sources

Filter Exposure Factor

Black and White Contrast control Filters

Conversion filters for color films

Light balancing filters

Neutral Density filters

Ultraviolet- Absorbing Filters

Infrared transmitting Filters

Color compensating filters

Safelight filters

Contrast Control-Printing Filters

Color Printing Filters

  Light balancing filters

These filters used to increase the color temperature slightly for a warmer (redder) or decrease the color temperature slightly for a cooler (bluer) tone. They are intended for use over the camera lens. If the color temperature is already known, using the Mired Nomograph, you can obtain the required Light Balancing filters.

The number in brackets () shows the corresponding Kodak Wratten filters.
The number in brackets [] shows the corresponding B+W filters.
 

Filter Color Filter Number Exposure Increase 

In Stops

Mired Shift Value
  

  

  

Bluish

82C+82C 

82C+82B 

82C+82A 

82C+82 

82C 

82B 

82A 

82

1 1/3 

1 1/3 

1 

1 

2/3 

2/3 

1/3 

1/3

-89 

-77 

-65 

-55 

-45 

-32 

-21 

-10

  

  

Yellowish

81 

81A 

81B 

81C 

81D 

81EF

1/3 

1/3 

1/3 

1/3 

2/3 

2/3

9 

18 

27 

35 

42 

52

 
(81A) [81A] 
 
 
 
  This filter balances color temperature from artificial light sources to the color tungsten film standard of 3200 degrees and balances the difference up to 3400 degrees. Due to this characteristic, a noticeable warmer color reproduction is produced. 3400K -> 3200K Filter Factor: 1,2x 
 
(81B) [81B] 
 
 
  This filter makes possible a stronger color temperature balance from artificial light sources to 3500 degrees which also results in a slightly warmer color reproduction. 3500K -> 3200K Filter Factor: 1,2x 
 
(81C) [KR3] 
 
 
 
  This filter recommended for daylight photography, especially in spring and summer with cloudless skies and clear air. It helps eliminate the strong blue tone and haziness, which is produced by this level of ultraviolet radiation. It will reduce the unwanted blue tone in shadow areas with an overcast sky. 3600K -> 3200K Filter Factor: 1,2x 
 
(81EF) [KR6] 
 
 
 
  This filter recommended for daylight photography, with high percentage of blue (as midday in the mountains during the summer). It block ultraviolet radiation and reduce blue tones in the shade. Also penetrates light fog. 3900K -> 3200K Filter Factor: 1,4x 
 
(82A) [KB1.5] 
 
 
  This light blue filter absorbs the excess yellow-red light from daylight in the morning and evening hours. 3000K -> 3200K Filter Factor: 1,1x 
 
(82C) [KB 3] 
 
 
  This filter corrects red tones when using 500Watt flood lights with tungten film. 2800K -> 3200K Filter Factor: 1,2x 
 
   





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