Nikon D90 user manual White Balance

White Balance

White balance ensures that colors are unaffected by the color of the light source. Auto white balance is recommended for most light sources; if necessary, other values can be selected according to the type of source. The following options are available in P, S, A, and M modes (auto white balance is used in auto and scene modes):

	Option	Color temp. (K)	Description
			Camera sets white balance automatically;
F Auto		3,500–	recommended in most situations. For best results,
			use type G or D lens. If built-in or optional flash is
	(default)	8,000*	used, white balance reflects conditions in effect
			when flash fires.
J Incandescent		3,000*	Use under incandescent lighting.	t
I Fluorescent			Use with the following seven light sources:
	Sodium-vapor lamps	2,700*	Use under sodium-vapor lighting (found in sports
			venues).
	Warm-white fluorescent	3,000*	Use under warm-white fluorescent lights.
	White fluorescent	3,700*	Use under white fluorescent lights.
	Cool-white fluorescent	4,200*	Use under cool-white fluorescent lights.
	(default for Fluorescent)
	Day white fluorescent	5,000*	Use under daylight white fluorescent lights.
	Daylight fluorescent	6,500*	Use under daylight fluorescent lights.
	High temp. mercury-vapor	7,200*	Use under high color temperature light sources (e.g.
			mercury-vapor lamps).
H	Direct sunlight	5,200*	Use with subjects lit by direct sunlight.
N Flash		5,400*	Use with built-in or optional flash.
G Cloudy		6,000*	Use in daylight under overcast skies.
M Shade		8,000*	Use in daylight with subjects in the shade.
K Choose color temp.		2,500–	Choose color temperature from list of values (pg. 99).
		10,000
LPreset manual		—	Use subject, light source, or existing photograph as
			reference for white balance (pg. 100).

* All values are approximate. Fine-tuning set to 0.

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