Originally Posted by Cyrano
This sounds great. So you would angle the screen toward the viewers negating the negative effects of having the projector not as high above the top edge of the screen as it is supposed to be? (about 7" for a 90" screen, because of Offset)
Sounds interesting. I would probably go with a 100" screen because it will work. As for white or gray. I don't know. Gray might be best, better blacks. I've just always gone with white. You have no ambient light and it has enough brightness to go with gray. It would nice to be able to get the projector first, then use a sheet or painted wall to test what is best. I think that is what I would do.
I've actually made 2 quick sketches just to find out that forum wount allow me to post them yet ;) Yes thats my plan to angle the screen to negate projector angle. This optoma PJ is kind of unfortunate in my small HT room (4,2m x 2,6m x 2m). I have seat about 3m from screen and above the seat there is a 30cm x 30cm concrete beam going across the room. Screen max size is 90".Wall is 2,6m width, I have speakers +basstraps in corners taking about 20cm from each side, means I have 2,1m left for screen. 90" is 2m, 10cm left for screen borders etc. I'd love to have something bigger but its not possible, so im sticking to this one.
So I have 2 options here:
1) to buy optoma PJ and mount it behind this beam on 30cm ceiling mount (lens will be 5cm below beam). If I dont angle it tho, my screen will be 35cm above floor and 53cm below ceiling. Too low to my liking. Rotating PJ 4degrees up will place the screen 26cm below ceiling and 60cm above floor, much better
2) to buy Benq w1070 which has shorter throw and mount it closer to the ceiling and infront of the beam (so above my head and a bit infront of me). This position of PJ bothers me a bit. I have a feeling it might distract me from watching films (light bleeding ?). Im a bit sensitive to distraction, I even covered leds on my H-K receiver...
I've read some reviews and forums and I think Optoma score some better points when it comes to image quality and image "pop". People claims its also a bit less noisy than benq. Its also 100euro cheaper here, and mounting PJ behind viewer position instead of above the head and a bit infront is also a big plus.
But back to the screens: whats the main reason to use gray one, its for better contrast/deeper blacks as I suppose ? Will gray screen actually improve blacks in a totally dark room, or will it just dim projector a bit but wount change quality of the image ? Article on projectorcentral advises to use gray screen when you have ambient light, and white ones in light controlled/dark rooms. I think tho it was written before "light cannon" era and might not be 100% up to date.
thx in advance for advices/opinions