I have reviewed this page regarding how to create lens calibration data. Would be happy to submit such photos but there are requirements that make it hard to say when I can get it done.
ggbutcher’s program looks like a good idea but right now it does NOT look like updating the data base will get what I need. I think what I need now is lensfun-convert-lcp rather than lensfun-update-data.
If Hugin refers to this software I find that quite interesting because I’d love to be able to make good panoramic images but that might need to wait for another day.
It looks to me like for those of you using an up-to-date Linux distribution it might be quite easy to run the lensfun-convert-lcp app to create a file that I could use with Lensfun. Here is a link to the Man Page. Therefore, I came up with the idea of asking if someone might be willing to convert this file for me?