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| p.1 #9 · How to edit/avoid Chromatic Aberration edges? |
Can't tell much from you posted samples, but as you suspect, I think your problem is not CA related but is instead a result of sharpening. Depending on how you sharpen, it's common to get halos around high contrast edges. Some sharpening techniques, especially the third party plugins help avoid that.
Unfortunately, I don't think there is any way to control halos in Lightroom. But if you have Photoshop, here is one common technique.
1. Sharpen your image as desired with the tool of choice (Lightroom, USM, Smart Sharpen, etc.). Ignore halos, and don't be afraid to be aggressive.
2. Put that sharpened image in a layer on top of a copy of the unsharpened image.
3. Enlarge to 100% or more and focus on some halos.
4. Double-click on the sharpened layer to access the blending options.
5. In the "Blend If/This Layer" section, drag the right triangle to the left until the halos disappear. You can also alt-click on the triangle to split it into two different control points.
Toggle the sharpened layer on and off to see the difference, and re-adjust the Blend If controls as desired.