Nikon D100 Product Manual - Page 64

White Balance The Function Dial With the function dial set to WB, rotate the main command dial to cycle through white-balance settings as shown below. Taking Photographs-White Balance (Auto) (Incandescent) (Fluorescent) (Direct Sunlight) (Preset) (Shade) (Cloudy) (Flash) 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. Change in Color Temp. Mired 4000 K - 3000 K = 1000 K 83 mired 7000 K - 6000 K = 1000 K 23 mired 52