Originally Posted by zukii
i have the image size about 6 feet tall and 12 feet wide and am very happy with my step into the projector arena and look forward to getting this room completely finished.
Also how far back is the projector and which one are you using? I am assuming the AX100U.
I can't get those dimensions to work on the screen calculator. With no zoom, and at 29' back (which doesn't sound like your projector would be that far back because it would be inside the wall then) I come up with 70"x124" and 13fL. At 28' with a slight zoom I can get the 6' height but still not the 12' width, so I'm curious about your setup... mainly because this is the projector I am looking at myself.
If that is close to your setup it looks like you're around 72"x128" for a 147" diagonal screen size and hitting it with around 12fL on the screen. That is probably why the gray isn't what you expected because at that size and amount of fL it is calling for either more brightness or a higher gain screen-- hence the semi-gloss working for you and not against you in your situation.
For the size screen you want there are no substrates that big so you are back to paint. You seem happy with what you already have so that's all that matters. If you ever decide to try something take a look at Rosco's Off Broadway White White vinyl based paint. It is a very nice white in a matte finish, and the vinyl blend is a little different than standard latex paint... but even at that it probably won't have the gain you need for a screen that size. It looks like you need at least a 1.2 gain screen and I can tell you FG most certainly isn't that high. Designer White is and there are Panny AX100U users that have it and love it, but unfortunately it doesn't come in the size you need, so again it all goes back to painting and since you are happy with the hi-hide (haven't heard of this myself) it sounds like you have your match
Can we interest you in some nice screen border material