Nikon 4 user manual White Balance, Specifying a Color Temperature, Select Set Color Temperature

7000 K – 6000 K = 1000 K

4000 K – 3000 K = 1000 K

Change in Color Temp.

Mired

24 mired

83 mired

Enhancing Images

White Balance

The tools in the White Balance palette are used to adjust white balance for RAW images. Using these tools, not only can you correct white balance when the setting chosen with the camera failed to produce the desired effect, you can also deliberately alter white balance to introduce a cold or warm cast into the image. Users of D2-series, D200, D70s, D70, and D50 cameras can copy white-balance settings to the camera or memory card ( 36). White bal- ance can be adjusted by specifying the desired color temperature or by sampling the image for the gray point.

Specifying a Color Temperature

1Display the White Balance palette

Select the tool palette containing the White Balance palette from the View menu (the default location for the White Balance palette is Tool Palette 2) and click the triangle at the top left corner of the palette.

Apply button Settings menu

Pop-up menu

Slider

Color temperature

2 If the Apply button is off () , turn it on ()

If the Apply button is off, the image in the active image window will reflect the white balance settings in effect at the time the photograph is taken.

3 Select Set Color Temperature

Select Set Color Temperature from the pop-up menu at the top of the palette.

White Balance

White balance can be performed on RAW images only. If the image in the active window is JPEG or TIFF, the Apply button in the White Balance palette will be grayed out and inactive.

“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, at a color temperature of 6000 K, a change of 1000 K produces almost no change in color, while a change of the same amount at 3000 K would produce a large difference in color. 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.

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