Nikon D90 - Manual (Page 122)

102
t
4
Measure white balance.
Before the indicators stop flashing, frame the reference object so that
it fills the viewfinder and press the shutter-release button all the way
down. The camera will measure a value for white balance and store it in preset
d-0. No photograph will be recorded; white balance can be measured
accurately even when the camera is not in focus.
5
Check the results.
If the camera was able to measure a value for white
balance,
C will flash in the control panel, while the
viewfinder will show a flashing a. At default settings,
the displays will flash for about six seconds.
If lighting is too dark or too bright, the camera may be
unable to measure white balance. A flashing
b a will
appear in the control panel and viewfinder (at default
settings, the displays will flash for about six seconds).
Press the shutter-release button halfway to return to
Step 4 and measure white balance again.
6
Select preset d-0.
If the new value for preset white balance will be used immediately, select preset
d-0 by pressing the WB button and rotating the sub-command dial until d-0 is
displayed in the control panel.
D Direct Measurement Mode
If no operations are performed while the displays are flashing, direct measurement mode will
end in the time selected for Custom Setting c2 (Auto meter-off delay, pg. 179). The default
setting is six seconds.
Viewfinder
Control panel
Viewfinder
Control panel