Operation Manual

Although Aperture can set the white balance of the image with great accuracy, sometimes
you have to use a combination of these two methods to have the image appear with the
warm or cool tonality you intended.
Before White Balance adjustment After White Balance adjustment
Adjusting White Balance with the White Balance Eyedropper
When you have pixels in your image that should be pure white, you can use the White
Balance eyedropper tool to automatically set the color temperature and tint of the image.
All you have to do is use the White Balance eyedropper to select a portion of the image
that contains neutral gray pixels, and Aperture white balances the image instantaneously.
To adjust the color temperature and tint with the White Balance eyedropper
1 Select an image.
2 In the White Balance area of the Adjustments inspector or the Adjustments pane of the
Inspector HUD, select the White Balance eyedropper.
Click the White Balance
eyedropper tool to
activate the Loupe.
The pointer changes to the Loupe, showing a magnified view of the target area. By default,
the Loupe is set to magnify the image to 100 percent (full size). If necessary, you can
increase the magnification of the Loupe by pressing Command–Shift–Plus Sign (+). For
more information about the Loupe, see Viewing Images with the Loupe.
505Chapter 17 Making Image Adjustments