Taking Photographs—White Balance
White Balance
56
Measuring Preset White Balance
To measure a value for preset white balance:
1
Place a neutral gray or white object under the lighting that will be used in
the final photograph.
2
Set the function dial to
WB
. If preset white balance is not selected, rotate
the main command dial until
PRE
appears in the control panel.
I
I I I
I
I
I
3
Rotate the sub-command dial. A flashing
will appear in the exposure-
count displays, and the
PRE
icon in the control panel will flash.
4
The camera will be set to the exposure mode chosen in the
WB Preset
>
Exposure Mode
menu; adjust focus, exposure, and flash settings. Note
that settings that would result in extreme under- or over-exposure could
prevent the camera from measuring a value for white balance. Under
studio lighting, use an 18% diffusion panel to make the reference object
appear gray. If you are using a white object as the reference for setting
white balance, exposure should be set to a value that would cause the
reference object to appear gray.
Use Manual Focus
When measuring preset white balance the focus-mode selector to
M
(manual focus;
74)
and focus manually. At a setting of single-servo autofocus, lack of contrast may
prevent the camera focusing on a neutral gray reference object, and the shutter-release
will be disabled.
