Adobe Photoshop CC 2014 v.14.xx - Manual (Page 506)

Fix Red/Cyan Fringe
Fix Blue/Yellow Fringe
Defringe
Amount
Midpoint
To the top
Note:
of the image that extend beyond the crop boundary.
3. Under Chromatic Aberration, adjust any of the following:
Adjusts the size of the red channel relative to the green channel.
Adjusts the size of the blue channel relative to the green channel.
Zoom in on an area that contains very dark or black detail against a very light or white background. Look for color fringing. To more
clearly see the color fringing, press Alt (Windows) or Option (Mac OS) as you move a slider to hide any color fringe corrected by the
other color slider.
Choose All Edges to correct color fringing for all edges, including any sharp change in color values. If choosing All Edgesresults in
thin gray lines or other undesired effects, choose Highlight Edges to correct color fringing only in the edges of highlighting where fringing is
most likely to occur. Choose Off to turn off defringing.
4. Under Lens Vignetting adjust the following:
Move the Amount slider to the right (positive values) to lighten the corners of the photo. Move the slider to the left (negative
values) to darken the corners of the photo.
Drag the Midpoint slider to the left (lower value) to apply the Amount adjustment to a larger area away from the corners. Drag the
slider to the right (higher value) to restrict the adjustment to an area closer to the corners.
Correcting Chromatic Aberration in Camera Raw 7.1
Camera Raw 7.1 provides a checkbox to automatically correct blue-yellow and red-green fringes (lateral chromatic aberration). Slider controls
correct purple/magenta and green aberration (axial chromatic aberration). Axial chromatic aberration often occurs in images made with large
apertures.
Remove red-green and blue-yellow color shifts
In the Color tab of the Lens Correction panel, select the Remove Chromatic Aberration checkbox.
Remove global purple/magenta and green fringes
In the Color tab of the Lens Correction panel, adjust the purple and green Amount sliders. The higher the amount, the more color defringing. Take
care not apply an adjustment that affects purple or green objects in your image.
You can adjust the affected purple or green hue range using the Purple Hue and the Green Hue sliders. Drag either end-point control to expand or
decrease the range of affected colors. Drag between the end point controls to move the hue range. The minimum space between end points is ten
units. The default spacing for the green sliders is narrow to protect green/yellow image colors, like foliage.
You can protect edges of purple and green objects using the local adjustment brush.
Press the Alt/Option key as you drag any of the sliders to help visualize the adjustment. The fringe color becomes neutral as you drag to remove
the color.
Remove local color fringes
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