Width of an 120" screen is 104.6".
Minimum throw range is x1.32.
Distance from screen to projector lens can be up to 143.5".
So it can be placed with the lens between 138" and 143.5".
Placed at 138" 100% of zoom is used. If placed at a longer distance, the zoom can be decreased.
Screen square surface is 42.71 ft².
In this review, the lumen values are measured depending on mode and lamp mode:
Lumen values in the review were taken with the lens zoomed at 100%.
From the review:
Bright Cinema in Eco lamp is 1683.
Cinema in Eco lamp is 1204.
These values are if a screen has a 1.0 gain. The ST actual gain may not be as advertised.
Originally Posted by Dominic Chan
They don’t have the Epson 4010, but using the 4040 the expected luminance is 34 fL. Also keep in mind the ST 1.1 gain screens measures closer to 0.9 gain, so the fL will be even lower.
Not sure if the screen Dominic is referring to is the regular or acoustic transparent one. Maybe ask in that thread, perhaps someone has measured the specific material you're interested in.
However, the difference between 0.9 and 1.1 is small with such a bright projector.
If the screen is actually 1.1 gain, then the brightness is increased by 10%. If it's 0.9, then the brightness is decreased by 10% as well.
15fL is recommended for SDR and 30+fL for HDR.