I thought I would start this as a new thread since there will be a fair bit of info here.
Yesterday evening, Bandyka and I stacked our respective units and had a pretty good look at UHD BR material in SDR BT2020, and also we had a good look at how good MadVR up-scaling is handled by our units. The goal here was to see what the JVC can do compared with a native 4k panel when fed the best case scenario image, which I have found during my ownership is most definitely a well up-scaled 4K image or a UHD Disc.
Some notes/caveats before we get started:
- The Sony is in need of a calibration due to slight green overtones you will see.
- Both units are brightness matched to peak whites.
- The Panasonic in SDR BT2020 Sony image produces some banding which has been reported before in other threads, note this is not posterisation. If you see it in the HD MadVR shots, then it is an artefact of the Sony. You should only see mild banding in UHD shots on the Sony.
With that said, I thought this data is at the very least interesting to share, don't jump on me about the colour differential, lets have a good look at resolving power. In the next couple of weeks, Bandyka and I are going to revisit this, when his unit is calibrated, this time at my house and we will take what we learned while doing this and hopefully have some even better shots for you guys. I wanted to share these with you guys in any case.
I am not going to give any opinions on the shots, I will let you guys see for yourself.
What I will say though, its the Sony is clearly limited by its lens. The 320ES has a pretty good lens sample, it resolves patterns pretty darn sharply, and there is no fringing, the pixels are easy to make out, so I would say there is nothing really wrong with the lens sample on the 320ES, However, note the barrel distortion in the lens, both units were stacked, in fact the JVC was on top, so any any lens should have distortion it should be the JVC. I think if Sony were to make some leaps with the included lenses on the 3/6XX series projectors and match JVC's brilliant lens, this would be a more clear cut shootout and the gap would be wider.
Contrast, once you are watching content above say 5% APL these units are one and the same. The JVC was only clearly ahead here on super low APL content, to which we didnt really screen shot any here, because it would not show much detail being so dark, but you guys should know, once either projector is showing any content during the day, or anything above say 5% APL, I couldnt say there was much of a difference between our units.
My JVC in order to brightness match Bandyka's unit was in low lamp with Iris - 6. This netted about 15fl on the screen with his 120" 1.1 gain or so screen from a min throw distance. So at that iris setting, I was probably cruising with about 50-60k:1? The 320ES should have been dishing out around 16k:1 from what I have read. It only really got weak in terms of contrast with fades and when the APL became low.
First, here is a Dropbox Link for the whole screen-shot dump in high res TIFF Files for those who are interested, the resolution is around 5700pixels wide. For the purpose of the screen-shot roll-overs I have had to reduce the size to 3840 so the files actually upload to that website. I encourage you guys interested in a much closer look to download the full files.
Please click through the screenshot comparison link to see the full size images and roll over feature - if they are too large for your browser you should be able to hit control-minus and the page will scale down and you can see the whole image. I wanted to keep the pics at the very least UHD size for the roll overs, if you want even bigger then download the dropbox link.
The images you see here is just really a thumbnail of sorts so you know whats on the other end of the link.
Now for the comparisons:
UHD BR SDR BT2020 - Panasonic UB900 - Enhancements ON (JVC Enhance on 2, Clear Black Low) (Sony RC 20) - All else switched off.
Star Trek Into Darkness:
UHD BR SDR BT2020 - Panasonic UB900 - Enhancements OFF
Star Trek Into Darkness: