While it is possible to save the Lensfun configuration in the image's ID file, e. g.
<LensModel>Nikon, Nikon AF Nikkor 50mm f/1.8D</LensModel>
<Model Label="PanoTools lens model">
, the resource file (.ufrawrc) always stays untouched, even if I deactivate Lensfun and explicitly use the option Save/Save image defaults/Just this once.
Users will consider it a bug when just the Lensfun configuration is NOT saved as a default setting to be remembered between activations.
While it is negotiable, if things like the state of the "Automatically find lens and set lens corrections" button should be saved (I think they should), there are definitely photographers, who would like to use Lensfun only with lenses, manually, that could profit from such a correction and accept the tradeoff of slightly reduced sharpness.
Save state of
- "Automatically find lens and set lens corrections"-button,
- if NOT activated/pressed:
- save state of correction controls (Camera, Lens, focal width, aperture, distance, parameters, etc.)
- if activated/pressed
- don't save (or overwrite at startup) state of correction controls (Camera, Lens, focal width, aperture, distance, parameters, etc.) for the lateral CA, vignetting, lens distortion and geometry tabs.