Lens correction: default focus distance at 1 cm?

[Terry (Terry Pinfold)]

@Unscript

Also, am I the only one thinking the lensfun-based vignetting correction should have a strength modifier?

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.