Pictures from most digital cameras will have all the basic info (lenses, f-stop, etc.) embedded in the "EXIF" information that is part of the file. For scans, and when you use old lenses on modern camera bodies, you have to add the information yourself. Lightroom does not have a built-in way to do that, but it's fairly straightforward using a "plugin". The one you want is this:
https://www.lenstagger.com/
It doesn't matter if the image you're bringing into LR is from a camera or a scanner -- the procedure is exactly the same.
Bookmarks