Kodak light balancing filters – Kodak ISBN 0-87985-749-8 User Manual
Page 55

5
KODAK Light Balancing Filters
Light-balancing filters enable the photographer to make
m i n o r adjustments in the color quality of illumination to
obtain cooler (bluer) or warmer (yellower) color re n d e r i n g .
One of the principle uses for KODAK Light Balancing
Filters is where light sources frequently exhibit color
t e m p e r a t u res diff e rent than that for which a color film is
balanced. When using a color temperature meter to deter-
mine the color temperature of prevailing light, you can use
the table below, which converts the prevailing temperature
to either 3200 K or 3400 K.
*These values are approximate. For critical work, check by accurate tests, especially
if you use more than one fil t e r .
Exposure
To Obtain
To Obtain
Filter
Filter
Increase
3200 K
3400 K
Color
Number
in Stops*
from:
from:
82C + 82C
1
1
/
3
2490 K
2610 K
82C + 82B
1
1
/
3
2570 K
2700 K
82C = 82A
1
2650 K
2780 K
82C + 82
1
2720 K
2870 K
Bluish
82C
2
/
3
2800 K
2950 K
82B
2
/
3
2900 K
3060 K
82A
1
/
3
3000 K
3180 K
82
1
/
3
3100 K
3290 K
81
1
/
3
3300 K
3510 K
81A
1
/
3
3400 K
3630 K
81B
1
/
3
3500 K
3740 K
Yellowish
81C
1
/
3
3600 K
3850 K
81D
2
/
3
3700 K
3970 K
81EF
2
/
3
3850 K
4140 K
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