What should I do if there are If there are no profiles for noise reduction for my camera (Nikon Z5ii ) (yet), what can I do?
At the moment, I set the module manually. Y0 and U0V0 separately, but one module instance.
which software?
Sorry my mistake, I use darktable.
Take a look here PIXLS.US - How to create camera noise profiles for darktable but follow the instructions in the comments (using a lamp instead of printing the gradient) to create a good profile
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Thanks ,I have already read the linked article, but it seems too complicated to me. It would be enough for me to know how to manually configure the ‘Denoise (Profile)’ module in the most sensible way.
It’s not really complicated. Set up the camera on a tripod, create a gradient with a lamp on a wall, take pictures for each iso value, run the script (retake images for the iso values it complains about) and you’ll have a nice profile afterwards. You could even submit it to darktable afterwards.
Even if your camera does not have noise profile, ‘Denoise (Profile)’ module can be applicable and the usage is same as other cameras with noise profile. However the result is not so good.
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I have already submitted a profile for Z5 ii, but apparently it needs a rework (no idea how though)
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I will go with your advise, one reason is the relative noisefree raw from my camera z5ii.
can you show some of the pics you used?
Here’s a ISO16,000 RAW file that was used, based on the PIXLS.US tutorial you sent. Let me know if you need more pictures.
DSC_0974.NEF (30.8 MB)
I am no expert but I guess the problem is the marked area:
you have all those values compressed into the rise of the right peak. I also didn’t manage to get a proper nice histogram/gradient with the printout so that’s why the comments recommend a lamp.
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Okay, I think I got some idea how to redo the noise profile with a lamp. Perhaps the tutorial should be deprecated/edited…
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To say what?
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Well, remove the whole cut-out DIY part and just advise to take photos with a lamp instead
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To me there are too many dark areas and you are not capturing the light fall off completely
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What do you mean by light fall off? Not dark enough?
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You are cutting off the gradient of the light fall off at the top while the remaining image is completely dark. Angle the camera a bit higher I’d say. Or switch to portrait orientation
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Does the color matter? Like I don’t really have a white wall that will have a gradient all the way to black, is yellow good enough?