Originally Posted by roxiedog13
Shimmer is real when you use a laser projector and positive gain material , to be honest I even see it on unity gain it's just much less obvious . Mostly only noticed with snow or clouds in really bright scenes , it's not drastic .
Using the VW885/995 on a 139" 2.40:1 and any AT material is going to be a tall order in my honest opinion . Even with the DCR Panamorph and good tone mapping the results will be minimal HDR at best .
I'm running a VW885 with ISCO IIIL on a 132" 2.35:1 the material is about 1.5 gain ( Draper XT1800) . I have plenty for HDR actually run only 75% laser . I have calculated that I can go 140", but only with a ST130 or similar with no less than 1.3 gain , would have to run closer to 90% for the same level HDR . AT material will be around 30% less brightness . I had one friend with a 135", AT screen combined with the VW885 he thought it was minimum for HDR . Actually , I don't think he had the A-lens or Lumagen, that didn't help either .
Thanks for your valuable input. So if I get this right, I have four options:
1-Say hello to AT, in order to get more gain (1 or even 1.3)
-> I really believe that an AT set-up is 'better' (like: more real, more natural sounding) than a non AT set-up. Especially when using high-end processing like Trinnov, or Synthesis SDP-75, so I'm not ready to let go AT;-)
2-Go for a smaller screen.
->My angle of view with the 139" diagonal 2.40:1 screen will be around 60°, which is - I think - perfect for 4K. It also allows me to put front L and R speakers wide enough (but still behind the screen) apart from each other, so I really want to keep the size of the screen
3-Invest in a more powerful PJ, like Sony 5000
-> Good idea, but my budget won't allow it...
4-Say goodbye (or at least partially) to HDR
-> My current setup doesn't do HDR, so maybe I won't miss it;-)