The function dial, Mired – Nikon D100 User Manual

Page 64

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Taking Photographs—White Balance

White Balance

52

The Function Dial
With the function dial set to WB, rotate the main command dial to cycle
through white-balance settings as shown below.

The Function Dial

Pictures can only be taken when the function dial is set to P, S, A, or M. When the
function dial set to ISO, the shutter release will be disabled. At settings of QUAL, WB,
and ISO, White Bal can not be selected in the shooting menu.

“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 100 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.

(Fluorescent)

(Incandescent)

(Direct Sunlight)

(Cloudy)

(Preset)

(Shade)

(Flash)

(Auto)

4000 K – 3000 K = 1000 K

Change in Color Temp.

7000 K – 6000 K = 1000 K

83 mired

Mired

23 mired

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