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
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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]
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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
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(81B) [81B]
|
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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
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(81C) [KR3]
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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
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(81EF) [KR6]
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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
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(82A) [KB1.5]
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This light blue filter absorbs the excess yellow-red light from daylight
in the morning and evening hours. 3000K -> 3200K Filter Factor: 1,1x
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(82C) [KB 3]
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This filter corrects red tones when using 500Watt flood lights with
tungten film. 2800K -> 3200K Filter Factor: 1,2x
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© 1998 Black & White Art Zone - Filterzone. All Rights Reserved.
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