@hannoschwalm Capture sharpening works so well and others concur. Would it not be a good time to port it over to darktable?
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Why? It was said and demonstrated that Diffuse & Sharpen work equally well.
Maybe I missed that. Can you please show me where that was demonstrated.
Message above, from June 2021, post by anon41087856.
Letâs not resurrect this old thread when we had recent discussion on the topic. See here: Settings for fine details (compared to other tools).
In particular, check out the comparison here: Settings for fine details (compared to other tools) - #108 by qmpel.
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I donât think thats an appropriate match by any means. Not sure what AP did there, that looks pretty ugly.
I think the thread didnât deliver so far. So, I will give it a shot with the current DT version. I throw in this 100% crop, which looks pretty similar in sharpness, compared to the OP. At least in my opinion.
DSC00662.ARW.xmp (11.6 KB)
Happy to see if someone produces a better match. We can all learn together.
The sharpening in the OP seems to be a bit overdone, I can see tiny rectangles, maybe sensor artefacts (?), I think. These are also visible in DT, and in my version too. Just something I observed.
whatâs the value of sharpness in this sample? That sample doesnât contain meaningful details that benefit from sharpness âŚ
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I see this more as a technical challenge to âsharpen your knifeâ or to add to your toolbelt, for when its needed.
darktable isnât designed to win technical challengesâŚ
itâs all about the image
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thatâs just your view 
I mean, look at the play raw, lots of them carry technical challenges and all can learn, how to deal with them. And even if this very picture doesnât need to be superb sharp⌠the process to deblur the image is still valueable.
So I donât see any harm. If it isnât interesting for you, why would you care?
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I am not fully convinced here. IIRC CS works in raw space so we have slightly better data already for the demosaicer. RCD at least gave some better micro-detail. BUT - the difference was pretty small for me and D&S is in really good shape (i love the presets 
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Quote from rawpedia:
It [the Capture Sharpening tool] is applied to the raw file immediately after demosaicing and modifies the data in linear gamma to limit halo generation. This means that it will only work on raw files .
And fwiw, with the other differences between the images within each example, Iâm not convinced (about either being better than the other).