Originally Posted by jwalker678
I am confused . I was advised by a HT specialist to get the motorized SI Reference solar screen (100") which is 1.3 gain. When I use the SI screen tool it suggests the lunar, .8 gain. I spoke to the company and they also felt the gray would be better suited. I used a screen selector tool from another company and it recommended a 1.3 gain screen.Then, I read a review by one of the AV magazines and the writter highly recommended the solar for most situations and did not recommend the lunar. Here is my situation. My room is 25'x12'. I have several windows (will be installing shades to control the light). The vaulted ceiling is white and the walls are tan. The carpet is light tan. I plan to get the Epson 5020. Mostly for movie watching at night plus sports. I haven't bought anything yet so I am open to suggestions and a little clarity.
The Epson is plenty bright to support a negative gain screen like the gray .85. In a room with 2 foot candles of light the gray will give you better blacks and the image will hold up better under a little light.
If watching in a dark room only then the Solar 1.3 white is a better way to go. The blacks are very good on the Epson so it will not need the extra boost in blacks a gray screen will give you. It is important to remember that gray screens do not improve contrast, gray screens only improve the blacks at the sacrifice of the whites but the eye compensates.
Of course the Black Diamond motorized 100" will give you the best of both worlds. Great image with lights on and lights off. I mention this because Black diamond reduces light scatter by 75%. This can make a big difference in the image when you have white and tan walls. With a white or gray screen the projectors light bounces from the screen to the walls and back to the screen. This result is called color push and simply means the color of the walls pushes back to the screen the colors from the image reflected off the walls. Limit the color push and the image improves.