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A White Balance Fine-Tuning
The colors on the fine-tuning axes are relative, not absolute. For example, moving the cursor
to B (blue) when a “warm” setting such as J (incandescent) is selected for white balance will
make photographs slightly “colder” but will not actually make them blue.
A Color Temperature Fine-Tuning
When Choose color temp. is selected, you can view the
color temperature while fine-tuning white balance.
A “Mired”
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, calculated by
multiplying the inverse of the color temperature by 10
6
, 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.:
• 4000 K–3000 K (a difference of 1000 K)=83 mired
• 7000 K–6000 K (a difference of 1000 K)=24 mired