Operation Manual

Correcting Exposure in the Image
If you’ve over- or underexposed an image, you can correct it by adjusting the Exposure
parameter. The amount of latitude you have—the visually acceptable range of
f-stops—depends on the file type and the bit depth of the image. Typically, a RAW file is
capable of a slightly wider latitude than a JPEG file.
Before Exposure adjustment After Exposure adjustment
Note: The amount of latitude depends on the camera, the bit depth, the file format, and
the amount of compression applied during capture. For optimum results, you should
shoot your images within 1.5 stops of a balanced exposure.
To correct the exposure of an image
1 Select an image.
2 In the Exposure area of the Adjustments inspector or the Adjustments pane of the
Inspector HUD, adjust the Exposure parameter by doing one of the following:
• Drag the Exposure slider.
• Click the left or right arrow in the Exposure value slider to change the exposure of the
image by 5 percent increments, or drag in the value field.
• Double-click the number in the Exposure value slider, then enter a value from –9.99 to
9.99 stops and press Return.
Use the Exposure slider
and value slider to correct
the image’s exposure.
A negative value decreases the exposure (darkening the image), and a positive value
increases the exposure (lightening the image).
509Chapter 17 Making Image Adjustments