Nikon D300 User Manual page 31

[] Studio Flash Lighting
Auto white balance may not produce the desired results with large studio
flash units. Choose a color temperature, use preset white balance, or set
white balance to [Flash] and use fine tuning to adjust white balance.
[] 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
5,000-5,500K 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.
[] See Also
When [WB bracketing] is selected for Custom Setting e5 ([Auto bracketing
set], pg. 297), the camera will create several images each time the shutter
is released. White balance will be varied with each image, "bracketing"
the value currently selected for white balance. See page 116 for more
information.
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