Sigma DP1 user manual Advanced Operation, Setting the White Balance WB

ADVANCED OPERATION

This section explains the application of the more advanced functions of your camera, when composing the expressions of your picture.

SETTING THE WHITE BALANCE WB

The color of light reflected by an object can vary depending on the color of the light source illuminating it. For example, a neutral colored object will reflect reddish light under incandescent lighting, and greenish light under fluorescent lighting. The human brain is able to compensate for differences in the color of a light source, allowing us to see white objects as white, independent of the lighting condition. Film cameras rely on special color-correcting filters and film types to adjust for these differences in lighting. Digital cameras, however, are able to use software to mimic the adjustments made by the brain, so that colors that appear white to the human eye also appear white in your photographs.

WHITE BALANCE OPTIONS

OPTION	COLOR TEMP.	DESCRIPTION
Auto		Select this setting to allow the camera to
	̛	automatically determine the appropriate white
(Default)
		balance adjustments.
Sunlight	Approx.	Select this setting when taking pictures in full
	5400 K	sunlight.
Shade	Approx.	Select this setting when taking pictures in the
	8000 K	shade under sunny skies.
Overcast	Approx.	Select this setting when taking pictures under
	6500 K	cloudy, overcast skies.
Incandescent	Approx.	Select this setting when taking pictures indoors
	3000 K	under incandescent (tungsten) lighting.
Fluorescent	Approx.	Select this setting when taking pictures indoors
	4100 K	under fluorescent lighting.
Flash	Approx.	Select this setting when taking pictures with
	7000 K	the Sigma EF-140 DG SA-STTL flash.
		Select this setting when using a custom white
		balance. Use the "Set Custom WB" menu
Custom	̛	option to create a custom white balance setting.
		The "Custom" option will not be available if no
		custom white balance has been set.

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