Nikon D70 User Manual download pdf (Page 61)

Taking Photographs—White Balance

The WB Button

When the monitor is off, white balance can be

ﬁ ne tuned by pressing the WB button and rotating

the sub-command dial.

Fine-Tuning and Color Temperature

Approximate color-temperatures for settings other than A (auto) are given below (val-

ues may differ from color temperatures given by pho to color meters):

+3 2,700 K 2,700 K 4,800 K 4,800 K 5,400 K 6,700 K

Shade

(daylight)

Cloudy

(daylight)

Direct

sunlight FlashFluorescent

Incandescent

+2 2,800 K 3,000 K 4,900 K 5,000 K 5,600 K 7,100 K

+1 2,900 K 3,700 K 5,000 K 5,200 K 5,800 K 7,500 K

±0 3,000 K 4,200 K 5,200 K 5,400 K 6,000 K 8,000 K

–1 3,100 K 5,000 K 5,300 K 5,600 K 6,200 K 8,400 K

–2 3,200 K 6,500 K 5,400 K 5,800 K 6,400 K 8,800 K

–3 3,300 K 7,200 K 5,600 K 6,000 K 6,600 K 9,200 K

* The size of the increments for Fluorescent reﬂ ects the wide variations in color tem-

per a ture among the many different types of ﬂ uorescent light source, ranging from

low-tem per a ture sta di um lighting to high-temperature mer cu ry-vapor lamps.

“Mired”

Any given change in color temperature produces a greater difference in color at low

color tem per a tures than it would at higher color temperatures. For example, a change

of 100 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

, is a measure of

color temperature that takes such variation into account, and as such is the unit used

in color-temperature compensation ﬁ lters. E.g.:

• 4000 K – 3000 K (a difference of 1000 K) = 83 mired

• 7000 K – 6000 K (a difference of 1000 K) = 24 mired

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Nikon D70 User Manual Page 61