Nikon D70s D70s User's Manual - Page 61
Taking Photographs-White Balance, Shade, daylight, Cloudy, Direct, sunlight, Flash, Fluorescent
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The WB Button When the monitor is off, white balance can be fine tuned by pressing the WB button and rotating the sub-command dial. Taking Photographs-White Balance Fine-Tuning and Color Temperature Approximate color-temperatures for settings other than A (auto) are given below (values may differ from color temperatures given by photo color meters): Direct Incandescent Fluorescent* sunlight Flash Cloudy Shade (daylight) (daylight) +3 2,700 K +2 2,800 K +1 2,900 K ±0 3,000 K -1 3,100 K -2 3,200 K -3 3,300 K 2,700 K 3,000 K 3,700 K 4,200 K 5,000 K 6,500 K 7,200 K 4,800 K 4,900 K 5,000 K 5,200 K 5,300 K 5,400 K 5,600 K 4,800 K 5,000 K 5,200 K 5,400 K 5,600 K 5,800 K 6,000 K 5,400 K 5,600 K 5,800 K 6,000 K 6,200 K 6,400 K 6,600 K 6,700 K 7,100 K 7,500 K 8,000 K 8,400 K 8,800 K 9,200 K * The size of the increments for Fluorescent reflects the wide variations in color temperature among the many different types of fluorescent light source, ranging from low-temperature stadium lighting to high-temperature mercury-vapor lamps. "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 51