Correcting purple fringing - case of Summilux-M 90mm/f1.5

[pajamies]

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Wonder whether anyone could help with how to correct purple fringing in Lightroom.

In the past, I have successfully been able to remove purple fringing using the correction pipette in photos taken with the Noctiluxes 50mm/f095 and 75mm/f1.25, but have had no success with the Summilux-M 90mm/f1.5.

The Lightroom seems to be missing the lens profile for the Summilux, and therefore the pipette does not work.

Is there a way around, without the lens profile, for correcting the purple fringing ?

[Keith (M)]

In the Develop module - Lens Corrections, choose 'Manual' and use the pipette from there.  

[pajamies]

Thank you ! 

This time the pipette worked in Manual mode!

I had tried the manual mode previously, but gotten the remark: "Cannot set purple or green fringe color ".

Today, repeated tries gave varying results, sometimes the pipette worked, but about half of the attempts resulted in the above remark !?

[BastianK]

a) for the correction of longitudinal CA no lens profile is needed.
Again: it makes absolutely no difference if there is a profile available or not here.
The profiles are for lateral CA, vignetting and distortion only.

b) depending on how distinct the fringing is the pipette may work better or worse.
A sample image where it didn't work would be really helpful here.

If you are not sure what type of CA you are dealing with maybe have a look here first to determine:
https://phillipreeve.net/blog/lens-aberrations-explained-part-1/#Chromatic_Aberrations

Edited March 10, 2021 by BastianK