I fully second Alan's point: constant height like in most theaters. I now cannot imagine anything else than a 2.35 screen.
I have a Dalite 4:3 manual screen ( heavy stuff, 90lbs, love it) that I rolled up to achieve a 2.35 format. I thus am no longer bottered by sub-black black bars from the lcd and the cinematic effect is stunning. For other formats, I zoom inside this 2.35 area and it's the same effect as in theaters. And again, no black bars ( euh, dark grey http://www.avsforum.com/ubb/biggrin.gif
) in 1.85 or 1.78 or 1.66:1 formats. Ok, the image is narrower but with a 2.35lens, imagine the size you could achieve: 5meters or 6meters wide due to all pixels and all brightness used ? and other formats will gain too ( a 1.85 movie in a 2.35 5meters wide screen would still be a hefty 3.93m wide, pretty big for Jurassic Park stuff http://www.avsforum.com/ubb/biggrin.gif
We're gonna need bigger rooms http://www.avsforum.com/ubb/biggrin.gifhttp://sod.hgo.se/svcd/making_svcds/...ame_height.gif
from IMDB as of 3/21/2001: aspect ratios of dvds (ntsc and pal, all regions):
1.78:1 2.2% , 1.85:1 30.30% and 2.35:1 20.01% ( add 5000+ laserdiscs in the letterbox 2.35 format ? http://www.avsforum.com/ubb/smile.gif
With the current trend among dlp and lcd owners to use HTPC, scalers or cinematrix devices, allowing pure 2.35 formats, the market is real. Don't forget Europe too (France, UK, Germany especially), Asia.
We're talking thousands if not tens of thousands or more potential buyers. under $1000 ? http://www.avsforum.com/ubb/biggrin.gif
One issue that could be of interest is maybe the possibility to have a 2.35panamorph that could help digital projector project on a curved 2.35screen, "Ã* la Cinerama" http://www.avsforum.com/ubb/smile.gifhttp://www.cineramaadventure.com/vanityfair01b.jpg
for cinema sound in your HT, use cinema speakers and cinema amps! unbeatable.