I've posted this on reddit to, but wanted to get your opinion on the DJI Forum as well:
To start off the TL: DR After testing the Mini4pro vs the Mini3Pro I suspect, that Dlog-M is the excat same as D-Cinelike and I feel, that Dji has mislead their customers to believe otherwise.
I was wondering, if I'm the only one who is more then underwelmed with Dlog-M and the Video Quality from the Mini 4 Pro in general. Don't get me wrong, the videos look fine. But compared to the Mini3Pro I don't see any real differences. Yes, the Mini3Pros whitebalance is a little more blueish, while the 4 seems to prefere a warmer tone, but appart from that - sharpness, detail, resolution, dynamic range all seem pretty much the same. Even more disappointing to me is the fact, that I'm very sure, that Dlog-M is just a new name for D-Cinelike. I know, that dji claims, that dlog-m is a actual log profile just with a little more contrast and color than dlog. But when comparing it with d-cinelike it looks the exact same. Even DJIs Dlog-M to Rec709 Lut for the Mini4Pro works just fine with the D-Cinelike from the Mini3Pro. Contrast, Colors etc all look very similar after applying the lut. That should not be the case, if dlog-m was an actaul log profile. B
ut why talk about this, when I can just show you. Here are comparisions between the Mini3Pro in D-Cinelike (always on the left) and the Mini4Pro in Dlog-M(always on the right). These are not graded and at 100% -2 Sharpness and Noise Reduction on Auto WB. The Mini4Pro even seems to be a little bit less sharper in some shots, but i think thats due to the Autofocus - which is stillnot continuous AF but Its Single focus AF, so totally useless for Video!!!
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Notice a tiny bit more detail in the Shadows of the Mini4 Pro 
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Notive, that highlight retention seems the exact same
And now here is a comparison using DJIs own Dlog-M to Rec709 lut for the Mini4Pro, applied to both the mini3pros d-cinelike and the mini4pros Dlog-M:
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Whitebalance on the 4Pro was very heavily leaning towards magenta and way to warm, i corrected that here, which might explain the stronger greens.
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Same as the ungraded version, I fail to see any difference. If at all, I think the Mini3Pros footage even looks a little flater after applying the lut. To be clear, I don't want to badtalk the Mini4Pro, BUT i'm super angry at djis marketing. Adn its not just their drones, I also noticed the exact same on the Action4s dlog-m vs Action2 d-cinelike - its the same. They clearly positioned Dlog-M as a more professional color profile, a true "light" log profile. That is clearly false and misleading to the consumer. They said in the past, that d-cinelike is basically a flater rec709 profile, but still only rec709, while Dlog-M is supposedly a broader gammut and offers a wider color space. My tests suggest otherwise. Either they undersold d-cinelike, or they are overselling dlog-m.
So, dear DJI: Please give us proper dlog on the Mini4pro! Please. I want to keep the drone, I love the features, but to enable a truely professional workflow, an actual log profile would be freaking amazing!
EDIT: Sorry for he screwed up Pictures, but I couldn't upload directly to the form due to sizing restrictions.
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