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

  Conversion filters for color films

These filters balance the spectral composition of the photographic light source to the temperature balance of photographic films

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
 
Conversion
In Kelvin
Mired
Shift
Value
Blue
80A
80B
80C
80D
2
1 2/3
1
1/3
3200 to 5500
3400 to 5500
3800 to 5500
4200 to 5500
-131
-112
-81
-56
Amber
85C
85
85N3
85N6
85N9
85B
85BN3
85BN6
1/3
2/3
1 2/3
2 2/3
3 2/3
2/3
1 2/3
2 2/3
5500 to 3800
5500 to 3400
5500 to 3400
5500 to 3400
5500 to 3400
5500 to 3200
5500 to 3200
5500 to 3200
81
112
112
112
112
131
131
131
 
(80A) [KB15] 
 
 
  This filter makes possible the use of daylight film in artificial light with a color temperature about 3000 degrees K without the color overtones. 3200K ->  5500K Filter Factor: 4x 
 
(80B) [KB12] 
 
 
  This filter converts artificial light of color temperature 3400 K to daylight color film. 3400K -> 5500K Filter Factor: 3x 
 
(80D) [KB6] 
 
 
  This filter reduces the strong red tendency of morning and evening light. It used for the optical reduction of extreme yellow, orange and red elements of scenes. 4100K -> 5500K Filter Factor: 1.5x 
 
(85) [KR12] 
 
 
  This filter makes possible the use of tungten color film in daylight or with flash illumination. This eliminates the strong overall bluish cast which would be present otherwise. 5500K -> 3400K Filter Factor: 2x 
 
(85B) [KR15] 
 
 
  This filter has the same usage as 85, but has better results when photographing areas with very clear air or high daylight temperature. 5500K -> 3200K Filter Factor: 2.3x 
 
 





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