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In the Forum: Audio Discussions
In the Thread: The Opera Room

Post Subject: ScreensPosted by George on: 9/29/2010

The folks who know HT told me that the light force of projector must be matched with gain of my screen and if the ratio is off for a few Lux then my roof will collapse.

This really can't be true because you will lose some 50% of the light output from the bulb in the first 500 hours. Plus if you are really obsessive the color spectrum will change and constant recalibration will be required. Myself, after an initial calibration, I just watch until the picture seems too dim and then buy a new bulb, but I am far from a videophile.

The motor for a Stewart retractable screen is some $1000 wholesale. They are made for retractable awnings. Other motors will cost correspondingly less and be of lesser reliabiltiy. For your purposes a manual pull-down screen would seem to be just fine. For your excellent room a 1.0 or 1.3 gain should be fine. Check out Da-lite.

Anyhow, stop bitching, as I understand there are two approaches: get a combination of screen/projector or to get a screen that would do a perfect fit to my room decor and then to look for a projector that will handle the screen.
Several of today's projectors have aperture settings that will allow you to control the light output and adjust for dimming bulbs and the type of movie you are watching. There many other controls available, gamma, grey scale, RGB, primaries, secondaries, brightness, contrast, etc. There is a lot of flexibility to tailor the projector to what you like and not all DVDs are properly mastered.

George

I have not read this link but maybe you will find it useful.

http://www.meridianunplugged.com/ubbthreads/ubbthreads.php?ubb=showflat&Number=116666#Post116666

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