Problem with defringe

[fsenore (Fulvio Senore)]

@RichardRegal

Looks more like chromatic aberration to me. On the Raw tab select Chromatic Aberration Correction and check the Auto-correction box. This is one of those cases where you might also benefit from unchecking the avoid colour shit box. After that you might also want to fine tune the settings on the Transform tab.

I have already tried what you suggest, but nothing changed the situation in a substantial way.
Thank you.