C
The photo shooting menu: Shooting options
250
3
Save changes.
･
Press
J
to save changes and exit to the menus.
･
If white balance has been fine-tuned, an asterisk (“
U
”) will be
displayed in the icon.
D
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.
D
“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
