Originally Posted by Lightivity
For me, the greatest jump in quality will be going from my 2008 projector to the JVC; the native contrast and color upgrade is a night and day change, and that is just based on the standard Blu-ray image. 4K is mostly icing on that cake, although of course I prefer the icing to be as well tasting as possible within my means.
If I understand you properly, using the Sony X800 and HDR output + custom gamma will provide all your three stated benefits (resolution, dynamic range and wide color gamut)
Using the Oppo 203 and HDR output without custom gamma will get me resolution and wide colour gamut? How is this done?
I'm somewhat new to the projector world (set up my first system a little over a year ago), but from all I've learned, you're right that the overall experience with the JVC should be dramatically better.
And yes, the custom gamma will give the best results with the RS400 for 4k/HDR.
Now, just to be precise, we aren't getting "true" 4k, due to eShift, so perhaps roughly '3k' vs '4k'. And the Wide Color Gamut of the RS400 isn't quite as wide as with the RS500/RS600 which have a physical filter to provide a wider gamut of colors. And due to inherent brightness limitations, televisions are able to provide a superior rendition of the wide dynamic range in brightness than virtually any consumer level projectors.
But within these inherent limitations, custom curves allow us to take advantage of all 3 dimensions of improvement available with 4k/WCG/HDR content.
Regarding the HDR to SDR conversion, 4k is maintained, as is WCG, but the HDR component is 'tone-mapped' to SDR. This is done either with the Oppo 203, which has a built-in feature to do this, or with other players, using the HDFury Integral. Basically, the player is 'tricked' into thinking the display device it is sending to isn't capable of HDR so that the HDR content is mapped into the narrower SDR range.
Generally speaking, the Panasonic UB900 with the HDFury Integral were generally felt to do this the best. The Oppo added this feature to its player, to accomplish this without needing the Integral, and initially did a poor job. They have improved it, apparently, but I'm not sure if they now do as good a job as the Panasonic. But both approaches will do a pretty good job.
As I said, before Arve's software became available, this approach of HDR to SDR conversion was the 'preferred' route to view 4k/WCG content on our Projectors. But now that we have this tool, this has mostly fallen by the wayside.
The only place where HDR to SDR conversion might still be desired is where the maximum brightness of one's system is significantly less than 100 nits. The basic idea here is that if one doesn't have enough available brightness, there just isn't enough 'room' to take advantage of the potential High Dynamic Range. This would be due to low gain screen, long throw distances, lower projector lumen output, etc.
But bottom line, even with the RS400, with Autocal and a custom curve, the 4k/WCG/HDR experience is pretty dang good! Add the overall image size which provides great immersion, and a good sound system, I now prefer to watch movies at home, finding the experience to be superior to any commercial theater I have been to, or have access to.