My On1 noise reduction, which gets used less often but still occasionally, has not given me any reason to distrust it. Yet Topaz DeNoise handles K3III files fine, only rarely unexpected artifacts as far as I can see. It does not surprise me that they would also have issues with a camera employing raw noise reduction. They don't like monochrome images either whether from a Leica or my Pentax monos, and have no intention of changing that, They could. Point 2: In my personal opinion DxO may have issues with out-of-the-ordinary images. If it were so obviously true why has no one unequivocally shown it? Assumption that something must be happening is way short of proof. Have Canon R3 users been able to prove detail is lost or even demonstrate a negative effect on its photos? I don't believe they have either. Is it quantifiable? I've never seen it, and definitely not in any of my own images. Now is it possible detail might be lost in the process? Of course it's possible. Some photographers claim Canon's camera must logically be eating detail. It should be a jpeg only setting.Point one: EOS R3 uses what appears to be equally effective, or what you would call aggressive, noise reduction along the entire ISO range. Nobody does that to this extent and there is absolutely no benefit. I think I will never understand why Pentax went down this route of aggressive raw noise reduction. Because we can't rule out the possibility that the lost detail is irrecoverable. Among the samples I have tried I particularly like the output of "high density" sensors like the new fuji 40MP, clean yet natural and the advantage with respect to "standard" denoise algorithms is clear as day for those sensors. The amount of detail that it is able to salvage is staggering. Almost every camera, including M4/3 sensors, becomes usable up to ISO12800, or more. Artifacts are very rare and occur if you push it too much (which is not needed). For most cameras (unfortunately not the K-3iii.) it is set and forget, just leave DPXD always enabled at default settings and it does the trick. Possible problem in DeepPrime XD support for Pentax K-3iii - DxO PhotoLab - DxO ForumsĪdvanced AI denoise like DxO (I am not a fan of Topaz), fully integrated in a powerful raw processor, is really a game changer. At 12800 ISO performance is really poor in comparison to other cameras. But up to that sensitivity the difference is at the level of "pixel peeping". Yes it works much better on other cameras with (essentially) the same sensor like the Fujis. Up to ISO4000-5000 deep prime (non XD) does a decent job on the K-3iii. Luckily the problem is worse at very high ISO, where it is unlikely that image quality is critical. So there is hope that they could fix it sooner or later. I have to say that the KP behaves pretty well in spite of the accelerator. As a matter of fact, DP and XD work worse on the K1ii than on the K1, see for yourself on DPr samples. Therefore to adapt the model to this specific type of file would require a level of fine tuning that is probably not considered worth the effort by DxO. The statistical properties of the noise are unlike any other camera. Pentax cameras with accelerator chips are an outlier in the training dataset. This is an indirect result of Pentax's questionable choice of applying a level of in-camera noise reduction baked into the raw that is significantly stronger than any other camera on the market. Completely opposite behavior with respect to other cameras. It always degrades image quality by introducing artifacts and actually increasing noise in out of focus/uniform areas. With the K-3iii even standard deepprime has "subpar" performance, but XD is totally broken. I have tried full frame big mpix cameras, micro 4/3 cameras.always XD yields great results out of the box, better than DP. Fuji 26mpix and even the new 40mpix sensors in particular are incredible (XD support for Xtrans was added in a recent update). For almost any camera DPXD is essentially black magic. Lately I have downloaded a few samples from the usual DPreview studio set, from various cameras and my conclusions are as presented in the thread (where perhaps I mentioned no raw files being available in DPreview database for K3iii, but they are available now). Other users weighed in, but so far I've seen no improvement in DeepPrime XD for KIII mk3, which is unfortunate. I have already dug into this topic, and even opened a dedicated thread on DxO support forums.
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