Originally Posted by qlizard
This is the screen I'm planning to build, using MississippiMan's plans. I'm leaning to 16x9 because I think I can live with the bars at the bottom and top, and don't want to lose the size on sports, etc. Sitting about 15 feet back.
I am trying to pick out a projector and am leaning to the epson 5050ub because of everything it offers, plus the lumen for a 0.7 gain screen. But I found a potential deal on a JVC DLA RS600 (1900 lumens). Will it have enough light for this screen?
Yes...and it has significantly better...scratch that. Incredibly better contrast, and the image will be devoid of any pixelated artifacts. It would be extremely hard to find any reason to not consider it, given that it was a $10K projector originally and loaded with JVC's best technology (in 2015)
The ONLY 2 caveats being that with Spandex being 0.7 gain, you would have to mount the projector to within 5% of it's closest Throw distance for the 150"er to assure that you get every bit of JVC excellent image looking as bright as possible (17-18 fl)
......that, and if the unit is not new, if the Lamp needs replacing to obtain top end performance, that Lamp will cost over $375.00 IF you can find a Dealer willing to let you have it at their cost.
I'll tell ya something.....there are individuals...myself included, that would give up a needed body part to find that unit for sale at a bargain.
Now all that said, if your looking for the absolute brightest possible image, especially in HDR, then the balance shifts over to the 5050. No question there at all. Even with Spandex the image will light up with over 27 fl at a 15'-2" Throw. Now that still falls under the commonly expressed desired level of 38-45 fl, but Titles are coming out with better HDR so that might not be something to make you hold back for. Oh yeah...and any eventual Epson Lamp replacement will easily be under 1/2 the cost of the best deal you could find on a JVC Lamp.
So unless you are fixed (...or fixated
) on needing a Spandex screen because of it's Acoustic Transparency, I'd switch a conventional surface such as Flexi White and spray on a 1.2 gain High Contrast paint and revel in the 46 fl such a DIY 150" screen would provide.