54Taking Photographs—White Balance2 Press the multi selector up or down to choosethe desired value and press the multi selectorto the right. The shooting menu will be dis-played.Fine-Tuning White BalanceAt settings other than (Choose color temp.) and PRE (preset), whitebalance can be “fine tuned” to compensate for varia tions in the color ofthe light source or to introduce a deliberate “warm” or “cold” cast intoan image. Higher settings can be used to lend images a bluish tinge or tocompensate for light sources with a yellow or red cast, while lower ing whitebalance can make photo graphs appear slightly more yellow or red or com-pen sate for light sources with a blue cast. Adjustments can be made in therange +3 to –3 in increments of one. Except in Fluorescent mode, eachin cre ment is equiva lent to about 10 mired.White balance is fine tuned using the White bal. option in the shootingmenu or by pressing the WB button and rotating the sub-command dial.The White Balance Menu1 In the white balance menu ( 52), highlightan option other than Choose color temp.or White bal. preset and press the multiselector to the right.Color TemperatureThe perceived color of a light source varies with the viewer and other conditions. Colortemperature is an objective measure of the color of a light source, defined with ref-erence to the temperature to which an object would have to be heated to radiate lightin the same wavelengths. While light sources with a color temperature in the neigh-bor hood of 5,000–5,500 K appear white, light sources with a lower color tempera ture,such as incandescent light bulbs, appear slightly yellow or red. Light sources with ahigher color temperature appear tinged with blue.
