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Topic: 3D Coming back to film?
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Monte L Fullmer
Film God

Posts: 8367
From: Nampa, Idaho, USA
Registered: Nov 2004
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posted 12-01-2009 09:34 PM
I know that we're slightly drifting a bit off-topic now onto HDTV reproduction, but have to chime on this one with what others have noticed:
Okey, you got a fancy 16:9, 1080p HDTV sitting in your living room (we got ourselves a VISIO 37" 1080p variety last month from WallyWorld..)..
You got into your settings and you can still choose 4.3 standard TV presentation, or the other options of 16.9 - being the panoramic and zoom features... which stretches out the picture on the sides slightly while keeping the center of the image more natural looking (like doing a 1.39:1 anamorphic side stretch with no correction diopters in the middle).
Now, on broadcast TV, it's somewhat tolerable (yet, like on CNN, when you see the words scroll across the bottom how they come in from the right slightly ballooned then scrink down to normal size by the time they reach the middle of the screen, only to balloon back up when they exit to the left), yet you pop in a DVD that is in letterbox and you get a major total "Super 3.34:1 "Band-Aid" looking picture on the screen.
Thus, what am I missing - wrong settings, or is this what we're stuck with...?
-Monte
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Stephen Furley
Film God

Posts: 3059
From: Coulsdon, Croydon, England
Registered: May 2002
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posted 12-22-2009 02:15 PM
quote: Frank Angel Does a silver painted screen preserve polarization as well as a "native" silver screen? We've got a solid Hurley screen; I am wondering if the back side could be painted and then with the fairly simple, albeit work intensive reversing the screen on the frame, we could have the best of both worlds.
Frank, I believe silver screens are sprayed, albeit under carefully controlled conditions at the factory, so it theory it might be possible, but I can see a lot of problems.
Would the silver take on the back surface of the screen; a surface which wasn't designed for this purpose?
How would you spray it on stage without silver getting where you don't want it, on curtains and seats for example? Some of the spray is bound to get into the air, and air currents could carry it a considerable distance.
Stages are not designed for spraying; you'd probably need fume extraction for example, unless they've removed the nasty solvents from screen coatings now.
Reversing the screen on the frame would involve not only a lot of work, but also a lot of time, during which the theatre couldn't be used, and a lot of handling, which is the last thing you want to do with a silver screen. I think it would be almost impossible to reverse the screen without getting marks on it.
Do you have enough height to fly your screen frame? If so, then you could install two screens, each on its own frame. Obviously, this would add extra cost, and take an extra set of lines.
If your screen is not too large you could use a roller screen, as Pictureville does with the flat screen in front of the Cinerama one, or MOMI used to do with four different screen surfaces.
I was wondering if you could mount a screen on each side of the frame, then attach a set of lines to the bottom of the frame, and turn the whole thing over top to bottom, but you'd need a very deep stage to be able to do it. I'm also not sure if it would affect the acoustic properties of the screen, and whether the frame would be rigid enough to support its own weight while being turned over in this way. You'd probably also need a special double sided frame to be able to do this, though some old wooden ones I've seen could do it.
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