Wow, you are using the H77 and you feel like you have enough light on the screen? This is very positive as I planning a 149" screen and my front row will be at about 12.5' and second row at 17.5'. I will be using a 1080p projector so I am hoping the viewing distance will be ok.
Originally Posted by nosdude
The front row is 15ft from the screen and the second row is 20ft. I'm using the Optoma H77 HD2 projector (Old but it works and support 1920x1080.
I bought the 1.3 gain screen material at ebay for about $120.