Leaderboard

My advice is to forget about "accuracy". I've been down the rabbit-hole of calibration and discovered it's actually a mine-field not a rabbit hole, and there's a reason that there are professionals who do this full-time - the tools are structured in a way that deliberately prevents people from being able to do it themselves. But, even more importantly, it doesn't matter. You might get a perfect calibration, but as soon as your image is on any other display in the entire world then it will be wrong, and wrong by far more than you'd think was acceptable. Colourists typically make their clients view the image in the colour studio and refuse to accept colour notes when viewed on any other device, and the ones that do remote work will setup and courier an iPad Pro to the client and then only accept notes from the client when viewed on the device the colourist shipped them. It's not even that the devices out there aren't calibrated, or even that manufacturers now ship things with motion smoothing and other hijinx on by default, it's that even the streaming architecture doesn't all have proper colour management built in so the images transmitted through the wires aren't even tagged and interpreted correctly. Here's an experiment for you. Take your LOG camera and shoot a low-DR scene and a high-DR scene in both LOG and a 709 profile. Use the default 709 colour profile without any modifications. Then in post take the LOG shot and try and match both shots to their respective 709 images manually using only normal grading tools (not plugins or LUTs). Then try and just grade each of the LOG shots to just look nice, using only normal tools. If your high-DR scene involves actually having the sun in-frame, try a bunch of different methods to convert to 709. Manufacturers LUT, film emulation plugins, LUTs in Resolve, CST into other camera spaces and use their manufacturers LUTs etc. Gotcha. I guess the only improvement is to go with more light sources but have them dimmer, or to turn up the light sources and have them further away. The inverse-square law is what is giving you the DR issues. That's like comparing two cars, but one is stuck in first gear. Compare N-RAW with Prores RAW (or at least Prores HQ) on the GH7. I'm not saying it'll be as good, but at least it'll be a logical comparison, and your pipeline will be similar so your grading techniques will be applicable to both and be less of a variable in the equation. People interested in technology are not interested in human perception. Almost everyone interested in "accuracy" will either avoid such a book out of principle, or will die of shock while reading it. The impression that I was left with after I read it was that it's amazing that we can see at all, and that the way we think about the technology (megapixels, sharpness, brightness, saturation, etc) is so far away from how we see that asking "how many megapixels is the human eye" is sort-of like asking "What does loud purple smell like?". Did you get to the chapter about HDR? I thought it was more towards the end, but could be wrong. Yes - the HDR videos on social media look like rubbish and feel like you're staring into the headlights of a car. This is all for completely predictable and explainable reasons.. which are all in the colour book. I mentioned before that the colour pipelines are all broken and don't preserve and interpret the colour space tags on videos properly, but if you think that's bad (which it is) then you'd have a heart attack if you knew how dodgy/patchy/broken it is for HDR colour spaces. I don't know how much you know about the Apple Gamma Shift issue (you spoke about it before but I don't know if you actually understand it deeply enough) but I watched a great ~1hr walk-through of the issue and in the end the conclusion is that because the device doesn't know enough about the viewing conditions under which the video is being watched, the idea of displaying an image with any degree of fidelity is impossible, and the gamma shift issue is a product of that problem. Happy to dig up that video if you're curious. Every other video I've seen on the subject covered less than half of the information involved.