Originally Posted by Manni01
If getting "only" 80,000:1 is the price to pay to not get bright corners, I'm very happy with that (provided we get at least 25,000:1 or more with the N7 and the iris fully open, and no more DI artifacts than with the current mid-high range e-shift models).
Same here. Heck, I might even settle for a consistent 40K:1 if there was a guarantee of no bright corners. Some of us like Toe and I can't use the highest contrast modes on the JVC anyway due to the perception of high flicker.
I've had very poor luck on this uniformity issue and even the two low contrast (50K:1 spec) RS40 units had the problem for me. What I find encouraging is that last year they apparently couldn't even find a single RS640 unit without bright corners for their booth while this year neither unit seemed to have it (although I'm not 100% confident on the NX5 due to the poor room lighting).
Originally Posted by DavidHir
Bright corners have always been my biggest beef (grey uniformity too, but JVCs have usually been excellent here) so if they fixed these and even minimized lens streaking more, big kudos to JVC.
After coming back from Cedia, I'm starting to think that the vertical lens streaking is not actually anything to do with the lens. If it was a lens issue, why would it have changed from vertical to horizontal streaking on the new models? I've also seen it on every single LCOS variant on the market (JVC, Epson, and Sony) despite them all using very different lenses. What might actually be causing it is some kind of limitation of how LCOS panels operate. It reminds me of a very similar problem with Plasma and many CRT TVs. Google "plasma line bleed" to see what I mean. Maybe JVC oriented the panels differently on these models which changed the orientation of the streaks.
Originally Posted by Toe
Great post. # 4 in particular is my biggest complaint with current JVC projectors.
Arrow, Mike, etc.....can any of you guys ask JVC if the pulsating/flicker which gets worse the more you close down the iris has been improved with these 4k models? Would appreciate an answer to this!
So I actually brought up the issue to their rep at the booth and he immediately knew what I was talking about. So they are definitely aware of the problem for some of their customers. He wouldn't commit to any specific changes being made to address it but admitting you have a problem is the first step towards finding a solution. Hopefully this is the year. Unfortunately, because very few people seem sensitive to it around here (probably even less than DLP rainbows), one of us will have to be the guinea pig and try one. I think having a bright HP screen like we do also makes us more prone to seeing the flicker/pulsing problem since we're actually able to utilize the highest contrast iris modes of these projectors.