It probably needs more than just white balance, but how about starting off by
simply creating a preset filter in the colour correction module for any lens
that has a particularly bad colour cast? You could then just apply it in bulk
to those images taken with the lens - or probably automate that sort of thing
with lua if it really matters for you.
Rgds,
Rob.
From: WhizzMan [mailto:[email protected]]
Sent: 20 June 2013 08:09
To: [email protected]
Subject: Re: [Darktable-users] Camera sensor profiling (ICC)
I think that starting off with an "as natural as possible" automated RAW input
has it's merits. If you have a nice import flow going and you need to adjust
your default white balance profile because a lens isn't color neutral, you'd
want some way to correct that based on what lens is in the icc profile.
For manual editing, I'm sure it's not very relevant, since you'll be tweaking
those levels anyway, but even there, the most neutral starting point would be
preferable?
On Thu, Jun 20, 2013 at 9:03 AM, Torsten Bronger
<[email protected]<mailto:[email protected]>> wrote:
Hallöchen!
Gert van der Plas - Schrama writes:
> I also noted that certain older manual lenses have their own color
> cast. Is there a way to have multiple colour profiles for
> camera's? Or a base color profile for the manufacturer lenses and
> enable lensprofiles for others?
LensFun is the proper tool to correct this colour cast -- but it is
not implemented (see the <cci> tag in
http://lensfun.berlios.de/manual/el_lens.html). The tag attributes
suggest that it is equivalent to a white balancing, so it may be
pointless in the digital era unless you want to use your camera as a
colorimeter.
Tschö,
Torsten.
--
Torsten Bronger Jabber ID:
[email protected]<mailto:[email protected]>
or http://bronger-jmp.appspot.com
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