Originally Posted by HiHoStevo
Brightness and lumens have been a big concern for me as I search for a replacement for my InFocus 7210.
I am currently using a 135" Elite 1.8 "power gain" screen and in my new theater will probably use a 150" Elite with the same material if I stay with the 16x9 format.
Unfortunately the center stage I built to house the subs and center speaker wound up a bit higher than I had thought only leaving me 81.7 inches from the top of the stage to the ceiling. Elite only offers the PG material along with a 3.5" frame... so I am pretty well maxed out with the 150" diag 16x9 screen.
The largest 2.35 format screen of Elite's that I can use is their 155" 2.35 screen which has a 60" tall image area with a smaller frame... but they do not offer the 1.8 gain material with that screen... I believe their 1.1 gain is the highest offered with the 2.35 screens.
My projector will be mounted from the ceiling (inside the a/c ducting), which puts the lens at ~40" above the eye height of the rear row of seating and ~55" above the eye height of the first row. Which I think is too much for the HP material.
I owned a 7210 for a while, and this thing is definitely a worthy successor in every department.
I had considered the Elite Power Gain material because I'd have been able to get a tensioned electric for not much more than the High Power pull down, but as you say they don't seem to make them large enough with the 1.8 gain material.
I threw your numbers in the calculator and funnily enough it calculated 1.8-1.9
gain with the High Power (for the second row
: Sorry, didn't see the 55" above first row. That works out to 1.4
gain in the first row, do you have the eye height numbers for those two seating locations? You're looking at ~15ftL in the first row with low lamp best mode on the 150" from what I calculate so far.
I assumed the 150" diagonal screen would be vertically centered on the 81.7" high wall from riser to ceiling, and a 6" high riser. Do you have a better number for where that screen's center would be (height from the floor)? I used 48".
Screen width 131", seating distance 164" (13' 8") and projector throw distance 216" (18'). Viewing eye height at 42" and the projector lens height 40" above that at 82" (or 6' 10"). Edit
: First row eye height at 42" and lens height of 97" (8' 1") and 57" eye height second row.
The W6000 and 150" High Power combo would work more than fine setup like that.
I have the spreadsheet open, just let me know if you have a better idea about any of those numbers.