darktable 4.8 location of lensfun database for personal use

Software darktable
2

Maybe these would help? Unfortunately, I’m not knowledgeable regarding lensfun, my old Nikon SLR lenses are supported out of the box, so I’ve never had to do anything.

https://lensfun.github.io/manual/latest/dbsearch.html
https://lensfun.github.io/manual/latest/lensfun-update-data.html

According to those, your own files should go under ~/.local/share/lensfun, and those will not be overwritten; updates are written to:

  • ~/.local/share/lensfun/updates/version_x (without sudo)
  • /var/lib/lensfun-updates/version_1 (with sudo)

On my system, the commands behave as described in the docs:

kofa@eagle:~$ lensfun-update-data 
[...]
Successfully updated the database in /home/kofa/.local/share/lensfun/updates/version_1.
kofa@eagle:~$ sudo lensfun-update-data 
[...]
Successfully updated the database in /var/lib/lensfun-updates/version_1.
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