73Taking Photographs—Image AdjustmentTaking Photographs—Image AdjustmentControlling Color: Hue AdjustmentHue can be adjusted in the range about –9 ° to +9 ° in increments of 3 °. Ifred is taken as the starting color, raising hue above 0 ° (the default setting)would introduce a yellow cast, making colors that would be red at a settingof 0 ° appear increasingly orange. Lower ing hue below 0 ° would introducea blue cast, making colors that would be red at a setting of 0 ° appear in-creasingly purple.1 Highlight Hue adjustment in the shootingmenu ( 168) and press the multi selector tothe right.HueThe RGB color model used in digital photographs repro duc es colors using differ ingamounts of red, green, and blue light. By mixing two colors of light, a variety ofdifferent colors can be produced. For example, red combined with a small amountof green light produces orange. If red and green are mixed in equal amounts, yel-low results, while a smaller amount of red produces a yellow green. Mixing differentamounts of red and blue light pro duc es colors ranging from a reddish purple throughpur ple to navy, while mixing different amounts of green and blue light produces colorsrang ing from em er ald to turquoise. (Adding a third color of light results in lighter hues;if all three mixed in equal amounts, the results range from white through gray.) Whenthis progres sion of hues is arranged in a circle, the result is known as a color wheel.2 Highlight the de sired option and press themulti selector to the right. The shooting menuwill be displayed.
