Hubert I’ll reply in the other thread with the links to get all the samples you needed. I’ll also see if I can upload all of these files to raw.pixls.us?
Ideally upload to raw.pixls.us JUST the base ISO. Currently the only “missing” differentiation on raw.pixls.us is ISO setting. That’s why I’m asking for links to pack of files. Those WILL end up on raw.pixls.us if the sample set of base ISO is missing on raw.pixls.us
We are working together to make it happen. Those not into darktable development rn provide raw samples to get camera support done earlier. Code is being written as we speak so I am very optimistic. You can also provide raw images and white balance profiles if your camera is not yet supported. See:
And while you are at it, @aadm, create a noise profile for the RP. If you need help, I can offer some newbie guidance to the process as I did it myself the last days for the first time
There’s a bit more to it than simply building master to get CR3 support working:
you need to pull down rawspeed PR #271 before building darktable
you need to update your exiv2 to 0.27.4-RC2 and build it with EXIV2_ENABLE_BMFF=ON
you may need to put a standard matrix for your camera into adobe_coeffs.c if it is not already there.
then if you build master, you should be able to open CR3 files. Some features like lens corrections, denoise profiles and WB presets may not be there yet, but that’s being worked on too.
So, CR3 support is not quite yet ready for production use, but it’s getting very close.
Thanks Matt. All these things sound maybe a bit too complicated… I’ll probably just wait a little and maybe help with noise profile for the RP for now.
So I followed the advice in the darktable IRC to put a lamp to a (white) wall and use this as the gradient. I produced the following kind of pictures:
They need to have perfect close to perfect black around the gradient and close to perfect white in the overexposed area. Took a few attempts. Finally I used a 135 mm lens. Maybe try to reproduce those kind of pics and upload the raws somewhere. I’ll run the script and it will tell if the pictures are fine. When I’m done I’ll ask rawfiner on IRC and if he’s happy with it we can submit it. Do you know how to do pull requests on github? I can do this for you as well if you want me to.
Benjamin can you check and tell me if these are ok? I have set the camera to f4, short enough shutter speed (1/30s), I think the bulb is overexposed not sure about the gradient and the pitch black requirement… I have shot two test photos, first one with focus to infinity as recommended in the original blog post the second all the way to the opposite way (shortest focal distance possible on my rf 50mm lens). Not sure which one is the best?
focus to infinity
shortest focus distance
if you need to double check with dt, here’s the two cr3:
Also, at this moment I don’t think I would be able to run the noise profiling myself, esp. if this involves compiling darktable with the additional things outlined by @Matt_Maguire above… (I can run a simple make, but all those other things are a bit too much for me)… so if you can do the actual processing I’ll be happy to provide the files.