To remove chromatic aberration, switch on lens profile correction and the automatic fringe removal option in Lightroom, then clean up leftovers with the defringe sliders. In Photoshop, use Camera Raw or the Lens Correction filter. Most fringing disappears in a minute or two.
What You Are Looking At
Chromatic aberration is colored fringing along high-contrast edges, often purple, magenta, green or blue. It happens when a lens fails to bring all colors of light to the same point. It shows up most with wide apertures, wide-angle lenses and edges near the corners of the frame, such as tree branches against a bright sky.
Fix It in Lightroom
- Open the photo in the Develop module.
- In the Optics panel, tick the box for Use Profile Corrections. This applies a lens-specific adjustment when your lens is recognized.
- Tick Remove Chromatic Aberration. For many photos this single option is enough.
- Zoom to 100 percent or more and check a bright edge in a corner.
- If a fringe remains, open the Defringe controls. Use the Purple and Green amount sliders, and the matching hue sliders, to target the color you see.
- Increase the amount slowly. As a general guide, small values usually do the job, and very high values can drain real color from nearby areas.
Fix It in Photoshop
You have two routes, and both are non-destructive if you work on a copy or a Smart Object.
- Camera Raw: open the file in Camera Raw (or use it as a filter) and follow the same steps as in Lightroom, since the tools are very similar.
- Lens Correction filter: go to Filter, then Lens Correction. In the Custom tab, use the Chromatic Aberration sliders for red/cyan and blue/yellow fringes, and drag until the colored edge fades.
For one stubborn spot, a local fix works well. Create a new layer, set the blend mode to Color, and use a brush with a sampled neutral tone over the fringe. This changes only the color, not the detail underneath.
Prevention in the Camera
| Habit | Why it helps |
|---|---|
| Close the aperture a stop or two | Fringing often lessens away from the widest setting |
| Shoot raw | Correction tools work with more color information |
| Avoid harsh backlit edges | High-contrast edges show fringes most |
| Keep lens firmware current | Camera and software profiles match better |
FAQ
Is chromatic aberration the same as purple fringing?
They are closely related. Purple fringing is a common form of the problem, but lateral aberration can also create green and magenta lines, so the sliders cover several hues.
Can I fix it in a JPEG?
Yes, though results are often less clean than with a raw file. The same tools work, but the file holds less color data, so very strong fringes may leave a faint trace.
The Short Version
Turn on profile correction and automatic aberration removal first, then use the defringe sliders for what remains. In Photoshop, Camera Raw gives the same controls. Keep adjustments small and check bright edges at a zoomed-in view.
