On Sat, Jan 23, 2016 at 12:01 AM, Matthieu Moy
<matthieu....@grenoble-inp.fr> wrote:
> Hi,
>
> I'm having trouble creating a preset for the lens corrections module
> that would 1) only apply TCA & vignetting, and 2) adapt to the lens
> automatically.
Have you googled? I have replied to the mails like this more than
several times already :)

> When I leave the parameters completely unchanged (i.e. not 1), creating
> a preset or copying the module from one image to another transmits the
> information "lens info are detected automatically". If I touch any of
> the menus, then creating a preset or copying to another image seems to
> record "here are the exact parameters of the module" (i.e. not 2). I
> understand this behavior when I change lens-related setting, but I don't
> see a justification for this when settings like "corrections",
> "geometry", "scale" is touched.
>
> To be clear : steps to reproduce =
>
> 1) Import an image taken at focal A, activate "lens corrections", chose
>    "TCA & vignetting" in the "correction" dropdown.
>
> 2) In lighttable view, Control-c on this image, Control-v a second
>    image taken at focal B.
>
> 3) Open the second image.
>
> Expected behavior : lens correction in image B should have focal B.
>
> Actual behavior : it has focal A.
>
> Is this intended?
Yes.

> Shall I report this as a bug?
No. (http://redmine.darktable.org/issues/10425 is supposed to be about this)

That being said,
I have most of the code to let it do what most seem to expect it to do,
but i haven't managed to fully fix it and merge...
https://github.com/darktable-org/darktable/pull/892

>
> Thanks,
Your welcome.

>
> --
> Matthieu Moy
Roman.

> http://www-verimag.imag.fr/~moy/
>
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