On Sun, Apr 7, 2013 at 6:38 PM, Dennis Gnad <[email protected]> wrote:
> > On Sun, Apr 7, 2013 at 11:59 AM, Markus <[email protected]
> > <mailto:[email protected]>> wrote:
> >
> > Hi!
> >
> > When I take Raw photos with my Sony a77 and I open that photos with
> > Shotwell, they look like on the camarey display when viewing them in
> > case of brightness. When I open them with darktable they are so much
> > brighter with only the basecurve applied. Is that a normal behaviour?
>
> Even while Pascal is probably right.
I got some A77 RAW from photographyblog.com and tested it locally on my own
(properly setup) system, where I get a pretty good match with regard to
tonality...
> I hear this "too bright" the second
> time now, yesterday someone else told me the same for a D3100, but I am
> yet to see example RAW+ExportedJPG+CameraJPG to "proof" it.
>
> How much more bright is it for you? Is it extreme that the picture looks
> already very wrong, or just a small difference? If it is really extreme
> that this could already be called "very overexposed" looking, then it
> would help if you would export a JPG from dt and give us this and the
> according RAW and Camera JPG.
>
> Because if it is really too bright, maybe this is some distribution
> where the color management libraries / available profiles /
> i-dont-know-what have some issues.
>
> Markus, which distribution and version are you using? Is it Opensuse
> 12.3 or "tumbleweed" by chance?
One thing which is easy to miss, is the fact that GNOME Color Manager
autogenerates a profile from the display EDID, which may influence things.
It's easy to see if a profile got set (as detailed in my article):
xprop -display :0.0 -len 14 -root _ICC_PROFILE
Regards,
Pascal de Bruijn
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