Nikon D610 - Manual (Page 145)

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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.
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Color Temperature Fine-Tuning
When Choose color temp. is selected, you can view the
color temperature while fine-tuning white balance.
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“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