My take on HDR:
HDR shines when applied to movies that are shot with modern, state-of-the-art digital cameras (such as ARRI Alexa) as the digital RAW files can handle dynamic range much better than, say, 35mm film. HDR is putting a strain on the source material and if the material is not meant for being pushed in terms of dynamic range, the results can be less than ideal. One of my favorite examples would be John Wick 2 - the entire movie has been shot with Arri Alexa + Arri Alexa XT Plus and the end result in HDR looks amazing in my opinion (though if I wanted to be nit-picky: the intermediate is "just" 2K). On the contrary, Harry Potter was shot on 35mm and with HDR activated on the 4K Bluray release, the end result is rather grainy and noisy and looks rather overblown (though on a positive note: black levels have been fixed). So what I do before I go out and purchase a movie in (4K) HDR, I research the movie first on the internet as there are some websites dedicated to inform on what material the movie was shot and if it has a 2K oder 4K intermediate. If I see that the movie was mostly shot with, say, an ARRI Alexa camera, I'm more inclined to get the 4K Bluray release.
Buying a TV for watching HDR content is another story ... it is worth knowing that movies are mastered at different Nits levels. So some movies will be mastered at 1000 Nits and your Sony A1 OLED TV might be best suited for displaying those movies in HDR... while other movies are mastered at 4000 Nits and then your Panasonic TV might be better suited for the job. This doesn't solely come down to what the TV can actually achieve in terms of maximum brightness but also at how the TV handles tone-mapping. Of course, high maximum brightness is probably the most important factor when it comes to HDR, but since none of the existing TV (to date) can display 4000 or 10000 Nits, tonemapping is just as important.
There are a lot of factors that come into play when displaying HDR content, and we haven't even mentioned the competing HDR standards yet or that OLED may not be able to get as bright as LED TVs but might just be the better TVs when it comes to overall contrast... currently I think the biggest issue with HDR is that it demands a lot of research, but once one has gone through the hurdle of getting all the necessary information, HDR becomes more enjoyable.
Last edited by adsl-ryoga; 11-01-2018 at 07:18 AM.