I've recently acquired a Nikon Z8, and right now I'm having some trouble with the annoyances that are embedded lens profiles.
As I'm using third party lenses adapted from Nikon F to Z, the embedded profiles are always wrong, as they get set to some similar Nikkor lens. This of course results in wrong profiles being applied in Camera Raw too, of course, thus the need to select the profile manually, as the EXIF values are wrong.
However, I've noticed a special behavior, probably a bug: using my TAMRON SP 35MM F1.4 DI USD lens and manually selecting the correct profile results in some circular, ring-like artifacts (see image).
This seems to be limited to this particular lens, at least I haven't seen it on any others yet. While it is more pronounced in higher ISO settings, it does not seem to be a case of banding - raising the exposure slider does not yield this effect or any kind of banding. Also, I have never noticed this with my D850.
Also, is there any way to completely turn off built-in corrections? I suspect right now the manually selected profiles are being applied on top of the built-ins (which are wrong).
If needed, I'd be willing to share an example RAW file privately, but not publicly on the forum.
Kind regards
Marius
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