Originally Posted by dna
Using the 5010's "Pattern", I currently have about 0.5" overscan into my screen's mask on the sides and a little over 0.25" on the top and bottom. This is on a Da-Lite High Power 133" 16:9 screen. Overscan is off. However, I experimented with overscan and it has no effect on the 5010's pattern, just on actual source material.
When I view video and set the overscan to off, overscan varies and sometimes the top and bottom doesn't go into the mask. Therefore, I'm wondering if you used the 5010's adjustment pattern (the one you get when you hit "Pattern" on the remote) for your evaluation? I suggest that is probably the way to do it. Otherwise the amount of underscan/overscan depends on the source device and video material.
The other possibility, I suppose, is that one of our screens isn't exactly 16:9. Seems unlikely that a screen company would mess that up, though.
This may sound silly but if you use the zoom on the projector to make the pic a little smaller would that not fix it?
Anthem AVM 60, Paradigm Sub 2, Paradigm S8s with C5, Anthem Statement M1 Amps, 174" Curved AT Scope Screen, Epson Pro Cinema LS10000 Laser 3D Projector, Samsung 4K Blu-ray Player, Oculus Rift VR, Xbox One, PS4, Clark Synthesis Transducer For Chair