Join Date: May 2001
Location: Flower Mound, TX
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I'm outfitting a 15x20 media room with a ceiling mounted JVC G15 D-ILA projector connected primarily to a HTPC set to drive the projector at its native resolution (1365x1024). This HTPC will be used for DVD playback, regular TV reception, computer screens (games), and HDTV reception, probably in that order of frequency.
The screen will be mounted along the short 15' axis at the far wall to get maximum distance between seating/projector and the screen. Because of sloping ceilings on the sides of the long dimension axis, the maximum case width of the screen is effectively limited to 11 feet or so.
Because there's an alcove behind the screen, I'd like to put the center speaker behind the screen and use some acoustically transparent material. Because this is a D-ILA projector, I'd like to go with the Stewart GrayHawk material. I also want an electrically raisable / lowerable screen, to access the alcove area behind the screen (a closet door is back there).
The only problem now is to choose an actual model from the myriad of models Stewart lists. From reading through the Stewart web site, my naive selection would be a 16:9 Vertical ElectriScreen ElectriMask, probably the EMSN135H or EMSN123H. This would give me 118 or 107 inch width, respectively, at the 16:9 ratio (for HDTV, some widescreen DVD, right?), and let me automatically mask back to 4:3 ratio for TV, computer, or pan&scan DVD.
My questions are:
[list=1][*]Is this a reasonable choice of screen model, given the parameters I've outlined, or am I missing something / looking at the wrong screen models on the web site?[*]For aspect ratios other than 16:9 or 4:3, I guess I just leave the screen with the masks retracted in 16:9 mode, and just don't take up the whole screen, right?[*]For native 1365x1024 resolution from an HTPC, I assume the JVC G15 projects a 4:3 image, right? To fill a 16:9 screen, would the image just use less than the full 1024 scan lines (leaving black above and below) to get the right aspect ratio, and be zoomed larger to fill the screen? Or what is the mechanism that a digital projector uses to project different aspect ratios?[*]I've heard references to a "panamorph" lense; is this a lense to stretch a 4:3 image to 16:9 so the full 1365x1024 resolution of a projector can be used in 16:9 mode? If so, would I manually need to change lenses every time I changed to source materials with different aspect ratios?[*]Is there a FAQ on this stuff so I can stop asking stupid questions (like that would work, right!)?[/list=a]
Thanks for any response!
- Dan Butterfield