AThe Shooting Menu

White balance can be selected using the White balance option in the shooting menu (0 131), which also can be used to fine-tune white balance (0 89) or measure a value for preset white balance (0 90).

The I Fluorescent option in the White balance menu can be used to select the light source from the bulb types shown at right.

AColor Temperature

 

The perceived color of a light source varies with the viewer and other conditions. Color

 

temperature is an objective measure of the color of a light source, defined with reference to

 

the temperature to which an object would have to be heated to radiate light in the same

 

wavelengths. While light sources with a color temperature in the neighborhood of 5,000–

 

5,500 K appear white, light sources with a lower color temperature, such as incandescent

 

light bulbs, appear slightly yellow or red. Light sources with a higher color temperature

 

appear tinged with blue. The camera white balance options are adapted to the following

 

color temperatures:

 

 

 

 

I (sodium-vapor lamps): 2,700 K

 

H (direct sunlight): 5,200 K

 

 

 

J (incandescent)/

 

N (flash): 5,400 K

 

 

I (warm-white fl.): 3,000 K

 

G (cloudy): 6,000 K

t

 

I (white fluorescent): 3,700 K

 

I (daylight fluorescent): 6,500 K

 

I (cool-white fl.): 4,200 K

 

I (mercury-vapor lamps): 7,200 K

 

I (day white fluorescent): 5,000 K

 

M (shade): 8,000 K

 

 

 

 

 

 

AThe Fn Button

For information on using the Fn button and the command dial for white balance, see page 146.

88