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Author Topic: Dolby 3D or XpanD Olivier Lemaire Expert Film Handler Posts: 118 From: Paris, Ile de France, France Registered: Jan 2010 posted 06-17-2011 01:36 PM                        You want a clean and simple system? Just use a dual projector setting with Master Image: * the 3D kit is reduced to 2 fixed glasses... the cost has no relation with the wheel kit... * you'll end up with savings with your lamps... * and most of the time you could use to "smaller" projectors All that ending with a direct economy in few months for most cases. Of course, that means you'll end up with an "Poor's guy IMAX", but well, no more luminosity problem.  |  IP: Logged Sam D. Chavez Film God Posts: 2153 From: Martinez, CA USA Registered: Aug 2003 posted 06-17-2011 07:58 PM                       I have two Dual systems in service for two years now with no problems and lots of light. The operator checks convergence every day just in case something has gone wrong. 2D films use only one of the two projectors. Great solution.  |  IP: Logged Mike Blakesley Film God Posts: 12767 From: Forsyth, Montana Registered: Jun 99 posted 06-17-2011 08:36 PM                        Those dual-projector setups -- are they two "complete" digital projectors? In other words is the cost about 2x as much as for a single projector? Or do they combine two of everything into one cabinet somehow? I'm just curious because I've never seen pics of such a set up.  |  IP: Logged Adam Martin I'm not even gonna point out the irony. Posts: 3686 From: Dallas, TX Registered: Nov 2000 posted 06-17-2011 10:24 PM                      |  IP: Logged Sam D. Chavez Film God Posts: 2153 From: Martinez, CA USA Registered: Aug 2003 posted 06-18-2011 10:37 AM                       I don't have pictures handy but one is is side by side (not ideal but the only option). The other is stacked Christie. Christie does not have the nifty option of back exhaust like the Barco shown so the lenses can't as close center to center as the Barco. The cost of a second projector is not a lot more than a Master Image system and the individual projectors can be smaller for 2D presentation. Also, you have a spare or maybe a 2D projector for an additional screen once if 3D goes away, again.  |  IP: Logged Brad Miller Administrator Posts: 17775 From: Plano, TX (36.2 miles NW of Rockwall) Registered: May 99 posted 06-18-2011 11:33 AM                     Plus if one projector dies, you haven't lost your auditorium, only the 3D.  |  IP: Logged Scott Norwood Film God Posts: 8146 From: Boston, MA. USA (1774.21 miles northeast of Dallas) Registered: Jun 99 posted 06-18-2011 01:25 PM                        I know that this has been discussed somewhere, but I can't find it: does the 2-projector 3D DLP system work like 35mm 3D (silver screen with disposable polarized glasses)? Or is there a Dolby implementation (non-silver screen, glasses need to be collected and washed)?  |  IP: Logged Olivier Lemaire Expert Film Handler Posts: 118 From: Paris, Ile de France, France Registered: Jan 2010 posted 06-18-2011 01:54 PM                        Mike : These dual projectors setup are using "complete" DC projectors. In other worlds, yes you have to pay a second projector. But consider the following equation for a given screen : * buy a Christie CP2230 + Master Image Wheel Kit, and use 6 kW lamps or * buy two CP2220 + Mi fixed glasses kit + HD-SDI splitter, and use 3 kW lamps. (or one 2220 by two 2210) Could be break even pretty quickly...  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 06-18-2011 02:29 PM                     I would still advise AGAINST Master Image. They are nothing but dust suckers. Dust, dirt and grime... what ever is in your air... gets all over the filter wheel AND all over the front lens element. The dustier or polluted your location the faster it gets dirty. Expect to have to replace the filter wheel AT LEAST once a year, in some locations twice a year.... about USD $500.00 ea. I have a customer that has four... we've moved them all to one location now in order to actually phase them out in September. If you're looking to buy then go Dolby if you're looking to play then pay then go with Real-D XL. Other than stacked projectors the XL still produces the best contrast range of the filtered 3-D systems and it rivals the contrast range of 2-D. Dolby can't do as much contrast range because of inherent limitations of the color bandpass system. Steve G. has not presented very clearly the outright costs on the systems... The cost of Real-D vs. Dolby. The cost of purchasing and installing Dolby 3-D is out of your pocket... eventually recouped from the surcharge. It is cheapest to install on BARCO projectors... The cost of Real-D is out of the ticket surcharge only, usually .50 cents per ticket, or depending on what you have negotiated with them... The equipment is supplied free to any CBG member so it is actually zero out of pocket dollars up front AND the entire time you use it. You make a little less surcharge but you still make some and if you are not using the Real-D equipment and running 2-D you don't pay anything. Mark  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 06-18-2011 05:02 PM                     Interesting on that dbl BARCO setup is that the top tail light is red while the lower one is green .. .. top one needs a bulb change?  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 06-18-2011 05:27 PM                     port and starboard image ?  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 06-18-2011 09:31 PM                     No, with BARCO it would be mroe likely to be Bow or Stern images.  |  IP: Logged Brad Miller Administrator Posts: 17775 From: Plano, TX (36.2 miles NW of Rockwall) Registered: May 99 posted 06-18-2011 10:21 PM                     Mark, weren't you on the Master Image marketing department several months back and all down on RealD? Then at one point I'm pretty sure you were talking about how terrible Dolby 3D was. Am I remembering incorrectly, or has your opinion changed again? Dolby 3D is the winner in EVERY category except for those that are unwilling to deal with rewashable glasses and freak out at running higher wattage bulbs. It is the best picture and by FAR the highest profit of any of the 3D systems. Remember it runs on a WHITE screen! Master Image is the best for people that want disposable glasses. With RealD you can actually lose money and it has the worst 3D image of them all. Them's the facts.  |  IP: Logged James Westbrook Phenomenal Film Handler Posts: 1133 From: Lubbock, Texas, Usa Registered: Mar 2006 posted 06-19-2011 01:27 AM                     The red tail light may be a communication error between it's computer and other components inside that top Barco. That might not be unusual on the two projector set up. MIGHT not be.  |  IP: Logged Carsten Kurz Film God Posts: 4340 From: Cologne, NRW, Germany Registered: Aug 2009 posted 06-19-2011 08:23 AM                     quote: Scott Norwood I know that this has been discussed somewhere, but I can't find it: does the 2-projector 3D DLP system work like 35mm 3D (silver screen with disposable polarized glasses)? Or is there a Dolby implementation (non-silver screen, glasses need to be collected and washed)? You can have 2-projector 3D with Dolby 3D as well. There are special, non-segmented filter wheels availabe from Dolby. It's a bit unusual, but cinemas with a Dolby commitment and a large auditory use it. Usually you wouldn't choose Dolby if planning a new large screen, but I have noticed some cinemas installing it temporarily e.g. for showing AVATAR. Good thing about dual-projector setup with polarizers: It's license free, you only pay for the silver screen and the second projector. Also, the static circular polarizers have better stereo separation than RealDs electronic switchers. - Carsten  |  IP: Logged

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