166
White Balance
A
The Information Display
To choose a white balance setting using the
command dials, press the
U
button while
shooting information is displayed. The selected
setting can be fine-tuned using the multi
selector.
A
White Balance Fine-Tuning
The colors on the fine-tuning axes are relative, not absolute. Selecting more
of a color on a given axis does not necessarily result in that color appearing
in pictures. For example, moving the cursor to B (blue) when a “warm”
setting such as
J
[Incandescent] is selected will make pictures slightly
“colder” but will not actually make them blue.
A
“Mired”
Values in mired are calculated by multiplying the inverse of the color
temperature by 10
6
. Any given change in color temperature produces a
greater difference in color at low color temperatures than it would at higher
color temperatures. For example, a change of 1000 K produces a much
greater change in color at 3000 K than at 6000 K. Mired is a measure of color
temperature that takes such variation into account, and as such is the unit
used in color-temperature compensation filters.
E.g.: Change in color temperature (in Kelvin) : Value in mired
•
4000 K–3000 K = 1000 K : 83 mired
•
7000 K–6000 K = 1000 K : 24 mired
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