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Reference Section
C Color Temperature
The perceived color of a light source varies with the viewer and other conditions. Color temperature
is an objective measure of the color of a light source, defined with reference to the temperature to
which an object would have to be heated to radiate light in the same wavelengths. While light
sources with a color temperature in the neighborhood of 5000–5500K appear white, light sources
with a lower color temperature, such as incandescent light bulbs, appear slightly yellow or red. Light
sources with a higher color temperature appear tinged with blue. The camera white balance options
are adapted to the following color temperatures.
1
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Red Blue
1
Sodium-vapor lamps: 2700K
2
Incandescent/
Warm-white fluorescent: 3000K
3
White fluorescent: 3700K
4
Cool-white fluorescent: 4200K
5
Day white fluorescent: 5000K
6
Direct sunlight: 5200K
7
Flash: 5400K
8
Cloudy: 6000K
9
Daylight fluorescent: 6500K
0
High temp. mercury-vapor: 7200K
a
Shade: 8000K