Originally Posted by cemo62
In my country we dont have much screen companies. I have only 2 choices. I would like to ask you will I have a problem with this situation about fL in the pic with elite screen?
fL with elite 1.1 white screen 24fL AND its cheaper than grandview.
fL with grandview 1.0 white screen 21fL
Room has dark grey walls and ceiling. Projector is sony HW50ES and viewing distance from screen to my eyes is 12 feet.
The manufacturers of the screens do not report the exact gain of the screen correctly in many cases, that 1.1 gain screen could be 1.0 (not sure, it might still be 1.1).
With that small of a screen, you will have plenty of brightness regardless. So you will be fine.
Furthermore, you cannot go by what the PJC calculator reports for fL, it uses random numbers from different projector modes and it is grossly inaccurate. I have written a calculator in my signature that gives a more accurate view of brightness, THOUGH it does not have the Sony hw50 model in it. However, a new version is due out this weekend I hope if all plans come together, which will include the Sony hw50es. You can try it out after I release it, or you can use my current calculator and use the Sony hw30 and change lumens to 1000, which is about the best-mode lumens of the Sony hw50es in lamp high.