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iPhoto ’11: The Macintosh iLife Guide to using iPhoto with OS X Lion and iCloud by Jim Heid, Michael E. Cohen, Dennis R. Cohen

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Tips

Pale and pastel. To give a pastel-like quality to a photo’s colors, decrease the saturation.

Going gray. If you drag the Saturation slider all the way to the left, you create a grayscale version of the photo. Generally, the B & W option under the Effects tab does a better job, but experiment and see which version you like best.

Note: If the skin-tones box is checked, you can’t completely desaturate the photo. To create a grayscale image, uncheck the box.

Watch your gamut. If you significantly increase a photo’s saturation, you probably won’t be able to print a version that matches what you see on screen. Printers have a much narrower color range, or gamut, than does the Mac’s screen.

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