vignetting correction (lensfun) can be improved
Sometimes it is useful to have option to just diminish vignetting instead of remove it completely.
It's not bug, I just speak from my experience. I'd rather have an option to control vignetting (0 - 100%) instead of remove vignetting in Lens Correction module and add some vignetting using the Vignetting module. It's not always looks natural, I have to correct it... It is tedious and takes time.
What do you think about it?
#1 Updated by Serhiy Kobyakov 5 days ago
I want to clarify what I mean.
A darktable user would have more control over vignetting correction if it would be slider 0 - 100% (or even better 0 - 150%) for vignetting correction instead just option to correct for vignetting or not.
All images are different. Some of them have to be completely corrected (interior images for example, where vignetting is rather defect than tool). Other (portraits) needs little bit less vignetting than lens gives, some needs a lot less, some even needs a little bit more (this is why I propose make slider having right edge of 150% than only 100%).
For portraits (speak from my experience) it is better to have natural vignetting (just correct its intensity when it is necessary, retaining lense's natural vignetting) than correct it completely and after that apply new one using another tool.
In any case more control over vignetting improve user experience with darktable.