Drag any of the adjustment sliders or enter values in
the text boxes, then click OK.
Lighten Shadows
Brightens the dark areas of your photo and reveals more
of the shadow detail that was captured in your image.
Darken Highlights
Darkens the light areas of your photo and reveals more
of the highlight detail that was captured in your image. Pure white
areas of your photo don’t have any detail and aren’t affected by
this adjustment.
Midtone Contrast
Adds or reduces the contrast of the middle tones. Use
this slider if the image contrast doesn’t look right after you’ve
adjusted shadows and highlights.
To reset the image to how it looked when you opened
the dialog box, hold down Option and click the Reset button.
Before adjusting shadows and highlights (top) and after (bottom).
Adjusting softens the face and reveals more detail behind sunglasses.