Nikon D300 User Manual page 679

On the other hand, if you want to make the image appear cool
or bluish, try using the
(3000K) settings in normal daylight.
Remember, the color temperature shifts from cool values to
warm values. The D300(S) can record your images with any
color temperature from 2500K (very cool or bluish) to
10,000K (very warm or reddish) and any major value in
between. There's no need to carry different film emulsions or
filters to deal with light color range. The D300(S) has very
easy-to-use color temperature controls and a full range of
color temperatures available.
There are two separate methods for setting the
on the D300(S):
▪ Method 1 – Manual WB using the
selecting options
▪ Method 2 – Manual WB using the
selecting options
We'll consider each of these methods since you may prefer to
use different methods according to the amount of time you
have to shoot and the color accuracy you want. Most critical
photographers will use method number two, the
measurement method.
Fluorescent (4200K) or
679
Incandescent
white balance
WB button
Shooting Menu
PRE
and
and
(PrE)