v5 *(RS1000) and v7 (RS2000) demo impressions
Just got back from the JVC demo session showing the V5 and V7. The actual units (according to their packing boxes) were a US market RS2000 and a (White) Japan V5. The demo was on a tiny 110" 1.0 gain screen and all the demos where played way bright so It was nearly impossible to judge real world contrast. I would say that it would be much better in my room at more realistic brightness levels.
Overall impressions. Both projectors are pin sharp and show a really "clean" image compared to eshift. The pictures looked like a giant OLED most of the time. The Peru 8K demo was much better on the 7 than the 5 and kicked what I remember of seeing it on an LG. I suspect dialing it back a bit at home they are capable of a truly remarkable image. The 7 is noticeably better than the 5 in color coverage and contrast.
The person demonstrating is from the development team at JVC for the V5. I suspect more on the management side but did know his stuff. I will try to not repeat what we already know but here are my notes:
- Color coverage is advertised as 100% Rec 709 got the 5 and 100% DCI P3 for the 7. The filter in the 7 is set to cover only that and not go much wider, it covers R,G and B. the Z1 (RS4500) is designed to go wider but lost alot of light soing so. Switching the new filter in and out the brightness did not appreciably change, they said it is under 20% light loss. When asked about coverage vs lamp power the response was that the advertised coverage is for low lamp.
- When asked about why the lumen rating is different betwen the projectors, the 9 is because of the lens aperture, which we already know. the 5 and 7 is basically marketing. There is a small difference due to parts grading but not 100 lumens. One is rounded down the other up.
- The difference in contrast ratings is NOT just due to the dual iris. the 7 gets higher binned parts than the 5 AND a higher grade wire grid.
- The reason why the 5 and 7 are so large is because all 3 new units share the same chassis. it was not cost effective to make a separate chassis for the 9.
- Motion control algorithm is all new. The intent of Auto 2 is to remove 24fps judder and nothing more. it is indented to be not noticeable outside removing judder. In the demo it was smoother but did not fix all occurrences that are baked into the souece. There was only a couple of times where I thought I could see it but it is better than previous iterations. Auto 1 is, he said with a laugh, for 60fps sports.
- DI control is also all new. Also Auto 2 is the go to mode. The DI and scaling is done in an all new high powered ASIC developed in house that replaces something like 12 chips from the previous design. First the new DI is able to maintain pin point brightness like stars while lowered in the black floor. It was pretty impressive in the demo showing HDR material cycling DI on/off.
- There was no noticeable difference scaling using the JVC vs the Panasonic UB-900 used for the demo. the new scaler options has settings to assume 2K or 4K source just like before but renamed. The enhancement looked just as bad as always to me and it was off for the demos.
- Calibration software is due to be released at end of November when the units ship. The japan release date was confirmed to be end of November, with the emphasis on the end (ie probably last day of) Sensor support is unchanged. When I asked about them supporting something more in the middle price wise than the current two units he said maybe but really could not say.
- I asked about contrast ratings. the specc'd ratings is at long throw minimum iris. He would not say what they were wide open. Only tidbit is that the 7 will be better than the 5 even wide open.
- the auto tone-mapping works real well, but the adjustment range for screen size does not seem like it is anywhere near enough to me. on the tiny screen it was set to +2 with +6(or 7) the max. Now the demo was quite bright but still.
Finally I talked about how the ATV sends metadata derived from DV metadata for HDR-10 and that this changes per scene. They were not aware that the ATV did this. The processor in the JVC takes about 3 frames to adjust when the meta data changes so it might be an issue. They developed with UHD discs and made sure it worked for all the discs they looked at which was about half of all discs available. We won't know the impact of this until we get units in our homes, but it is looking like Auto tone aping ain't going to work that well. I got the impression from my discussion that they are duly aware of DV and HDR10+ though and they are looking at how to handle dynamic metadata.
Last edited by Purple X; 10-27-2018 at 01:37 AM.