Originally Posted by Ron Jones
only DLP projectors could easily be used with such a dual projector setup for 3D. Also remember that front projection setups that use polarization to seperate the right and left images require you to use a silver screen material in order to maintain the polarization. Since this silver screen material generally gives poor results for projecting normal 2D material, you will most likely need to have two screens. Given the complexity of such a setup, I really believe that the 3D projectors using shutter glasses will offer the most practical solution.
Obviously, doing a dual-projector setup would be a major pain in the arse. Still, as difficult as it may be, it might be the smartest way to go for those of us that want the really high-end experience, but don't have the high-end bank roll to support it. Basically, one would need 2 brand new, identical 1080p projectors. (or two used identical projectors with bulbs that have the exact same amount of hours on them
) A mounting and exhaust solution for the two projectors. Filters for each projector, and a drop down silverscreen.
Basically, if it was me, I would have a pull down silverscreen, that I could pull down in front of my normal screen, only for when I'm going to view something in 3D. Otherwise, I would use my normal screen. The problem with everything is the logistics of setting everything up, and maintaining it, and the cost of all the individual parts that would be required. Two projectors could be acquired for around $2500 ($1250 each or so). The mounting and exhaust solution could be DIY project for $300 or under, I'm guessing. I have no idea how much a pull down silverscreen that is half-way decent goes for. I'd need one that would cover a 126" 16:9 area, and an even wider 2:35:1 area. Then there is the added complexity of trying to do the "Poor Man's Zoom Trick", using dual projectors. This would be extremely difficult I'm guessing.
Of course, there is also the cost of the two filters. I have no idea how much they would cost.
The long term advantage of all of this, is that you would save a ton of $$$ on all the glasses you'd need. Imagine having 20 or 30 of your closest friends over to see Mayweather vs. Pacquiao in 3D. Or Game 7 of the World Series in 3D, or the Superbowl in 3D, etc, etc. With a passive setup, you get the advantage of being able to use 1 dollar polarized glasses.
Also, you'd be able to do the true 1080p@60hz for each eye for PC gaming and potentially next generation consoles (Playstation 4 and Xbox 720). By using dual-projectors, you also don't suffer as much light loss.