On 20/05/17 02:31, Roman Lebedev wrote:
On Fri, May 19, 2017 at 6:16 PM, Swee Oon <[email protected]> wrote:
I am having this strange problem with darktable and my Canon EOS 6D. Below
is a description of the problem.
Which darktable version?
The problem is either the wrong white balance being read (is that RAW HDR?),
or wrong black/white levels being read.
I'm using darktable 2.0.7, and it doesn't look like I can get any other
later version because my linux mint 17.3 is based on ubuntu 14.04. I'll
have to upgrade to linux mint 18.1 to get any later darktable updates
from the pmjdebruijn ppa.
My Canon 6D does not support raw HDR. The file is just a normal CR2 raw
file, with multiple exposures on it. It's possible that the multiple
"averaged" exposures is screwing up the white balance data, but then why
does the jpeg preview look OK? Strangely enough, my google drive preview
of the file also shows a magenta cast.
Before I go into the hassle of installing a new linux mint OS to use the
latest darktable version, can someone confirm that this is not an issue
with darktable's reading of the file? Here is a link to one of the
problem files:
<https://drive.google.com/file/d/0B5_J2e-_7tXiNXl4VXB6NWxQNFU/view?usp=sharing>
Thanks so much.
Swee
I shot a photo with 9 multiple exposures (averaged) layered on the same
image using my Canon 6D at ISO 50 (camera's "L" setting). The preview was
fine when I viewed it on the back LCD screen of the camera.
The file imported OK into darkroom. The preview in the lighttable module
looked fine. However, when I go into the darkroom module, there is a strong
magenta cast over the photo. If I exit the darkroom module back into the
lighttable module, the preview image again looked fine. In order for
darktable's darkroom image of the file to look like the lighttable preview,
I had to turn off the white balance module inside the darkroom!
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