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The Shooting
Menu
White balance can be selected using the White balance option
in
the shooting
menu (_
148), which also can be used to fine-tune
white
balance (_ 98) or measure a value for preset white
balance
(_ 99).
The _ Fluorescent
option
in the White balance menu can be used
to select the light source from the bulb types shown at right.
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Color 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:
• _ (sodium-vapor
lamps): 2,700 K
• ;_ (incandescent)/
(warm-white
fluorescent):
3,000 K
• _ (white fluorescent):
3,700 K
• _ (cool-white
fluorescent):
4,200K
• _ (day white fluorescent):
5,000 K
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The Fn Button
•
;_ (direct sunlight):
S,200K
•
_ (flash): 5,400 K
•
=1.(cloudy):
6,000K
•
_ (daylight
fluorescent):
6,500 K
•
_ (high temp. mercury-vapor):
7,200K
•
_,, (shade): 8,000 K
For information
on using the Fn (_) button
and the command
dial for white balance, see
page _ 163.
97
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