Thanks to all the people who tested out my problem CR2 raw file. It
seems likely that Canon has written the white balance into the exif for
such multiple-exposure files in such a way that darktable stumbles when
reading it. I have had no problems with single-exposure CR2 raw files in
darktable. Looks like I can put off upgrading my linux OS until later. :-)
Swee
On 20/05/17 20:13, Gys van Zyl wrote:
Same issue with darktable 2.2.4. Preview looks OK until opening the
photo in darkroom. Turning off the white balance module makes it look
OK again, or in white balance module, pushing the tint up all the way
to 1.5.
On Sat, May 20, 2017 at 9:32 AM, Swee Oon <[email protected]
<mailto:[email protected]>> wrote:
On 20/05/17 02:31, Roman Lebedev wrote:
On Fri, May 19, 2017 at 6:16 PM, Swee Oon<[email protected]>
<mailto:[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>
<https://drive.google.com/file/d/0B5_J2e-_7tXiNXl4VXB6NWxQNFU/view?usp=sharing>
Thanks so much.
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