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                <h1>
                    Compensate for lens vignetting in Camera Raw
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                <div><div class="section"><p><dfn class="term">Vignetting</dfn> is
a lens defect that causes the edges, especially the corners, of
an image to be darker than the center. Use controls in the Lens
Vignetting section of the Lens Correction tab to compensate for
vignetting. </p>
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<ol><li><span>Increase Amount to lighten the corners, or decrease
Amount to darken them.</span></li>
<li><span>Decrease Midpoint to apply the adjustment to a larger
area away from the corners, or increase Midpoint to restrict the
adjustment to an area closer to the corners.</span></li>
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