darktable with Canon R6 mk3 ?

Software darktable
1

Hi,
I’d like to use darktable with my Canon R6 mk3, official support is not there and who knows when it will happen.
Libraw seems to be the culprit although there seems to exist patches on github (GitHub - JuanPabloZambrano/LibRaw at canon-r6III-support · GitHub) for the common cases.

Does anybody know of a packaged version which includes these patches ?
or
Is there a laymans description somewhere for patching and building darktable from source ?

Thank you in advance

2

You can open the raw files. Set the black level to 512 (low ISO) and 2048 (high ISO). White level should be below 16382. Use a colour checker for the color calibration module to get the right colours and save as a preset.

To get the right white level you can use RawDigger or you can in darktable activate the raw clipping indicator. Your raw file needs clipped highlights.
Set the white level to 16383 and pull it down until you see clipped highlights from the raw clipping indicator.

Different camera modes may give you different clipping points. R6 for example clips at 16382, but when I use multi-exposure the clipping point is something like 12736.

2 Likes
3

it‘s quite easy. The darktable build process is well documented. So you just need a little bit of git skills to merge the mentioned pull request into your libraw submodule folder.
Or use my R6mIII related branch (GitHub - MStraeten/LibRaw at r6mIII · GitHub) to copy the different files from there…

If you’re on macOS you might use my recent builds (current OSX Build - #973 by MStraeten)

2 Likes
4

Thank’s for your answer and yes, I have used this solution - it seems to work ok but what is high iso, what is low iso et.c.

5

Thank you, I’ll give this a try.

Would it be ok to post here if I get into trouble or are there some other more suitable forum for such questions ?

6

ok here, so it can be found by other darktable users …

1 Like
7

Really cool someone made a build with the branch.

If anyone finds any issues , please let me know .
Canon files are the ones that I have found that need most work to correctly add support in libraw.
I think I have tested all modes in the r6 III but I don’t have it to check myself.

8

thanks for your effort to make this available …

9

You will notice it if you set 512 when it should be 2048 or if you set 2048 when it should be 512.