Is there a way to set the default distance in that module when the lens doesn’t put the focus distance in the metadata (typically manual-focus lenses)?
The default value is 1 cm, which doesn’t seem likely to be useful very often, if ever. If I had to choose a default value, I’d rather put infinity (1000).
Also, am I the only one thinking the lensfun-based vignetting correction should have a strength modifier? Some of the lenses have a very aggressive vignetting profile in the database, and it almost looks over-corrected. Using the manual method and guessing the values isn’t very convenient (I had to do that a few times with the Nikkor 50 mm f/1.8, for example).
I saw several issues in the GitHub repository proposing just that, but they were automatically closed after a period of inactivity. So it seems not many are interested into that feature.
I like this suggestion because sometimes vignetting can be appealing so if I could actually tweak this automatic correction to my own preference that would be nice. Alternatively if the auto correction moved the manual sliders so I could tweak it that would also work well for me. I know in the rotate and perspective module when it does a line analysis and automatic corrections the sliders move and I can then tweak the correction if I desire.