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Author Topic: IMAX Basics Michael Brown Phenomenal Film Handler Posts: 1522 From: Bradford, England Registered: May 2001 posted 12-29-2002 08:05 PM                     quote: Interesting. I was overhearing someone trying to explain why IMAX films are only 45 minutes long. They were saying that since IMAX is such high quality, after 45 minutes you would start to feel nauseous because you were seeing so much information. hmm ???? What I was thinking was that if this really was the case, then we would get nauseous in real life after 45 minutes of having our eyes open. Since the picture quality of real life is even better than IMAX!  |  IP: Logged System Notices Forum Watchdog / Soup Nazi Posts: 215 Registered: Apr 2004 posted 08-23-2006 04:02 AM                 It has been 1332 days since the last post.  |  IP: Logged Cameron Glendinning Jedi Master Film Handler Posts: 845 From: West Ryde, Sydney, NSW Australia Registered: Dec 2005 posted 08-23-2006 04:02 AM                     Shows on the hour every hour, thats were the money is!!! Australias 2nd most profitable film ever was ANTARCTICA imax release. Most profitable Crocodile Dundee  |  IP: Logged System Notices Forum Watchdog / Soup Nazi Posts: 215 Registered: Apr 2004 posted 11-17-2007 04:11 PM                 It has been 451 days since the last post.  |  IP: Logged Thomas Pitt Master Film Handler Posts: 266 From: Leeds, West Yorkshire, UK Registered: May 2007 posted 11-17-2007 04:11 PM                     Actually, 45 minutes is about the limit that you can watch an IMAX 3D movie without feeling some form of motion sickness. You don't get sick in real life because your body and head are moving in the same directions as your vision shifts. But with IMAX, your field of vision is moving around without your body feeling the same movements. Unless you get some kind of motorized seating to throw you around, IMAX 3D films are still likely to induce motion sickness... It's the exact same reason motion ride simulators make some people , if the movements of the capsule aren't perfectly in sync with the image movements on screen.  |  IP: Logged Blaine Young Master Film Handler Posts: 477 From: Kirkland, WA, USA Registered: Sep 2006 posted 11-18-2007 05:28 PM                     I seem to recall that 45 minutes was the initial limit of what the IMAX platters would hold. I know that when I saw "Rolling Stones: At the Max" at the Canadian Museum in Hull Quebec in 1992, there was an intermission. With platter system mods, the time has been incresed. I recall reading that "Superman Returns" at 154 minutes is about as long as they can hold now.  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 11-19-2007 11:35 AM                     I put All Access and a trailor onto a standard 48" MK1 platter and that should be about 70min worth  |  IP: Logged Kirk Sayers Film Handler Posts: 6 From: Ottawa, ONT., Canada Registered: Jul 2007 posted 11-19-2007 03:23 PM                     i work at the CMC Imax/Omni in Hull Qc.we have a converted classic Imax with a 12 gap rotor and were capable of 24&48fps up until 4 yrs ago. The hard spring cam was replaced with a soft one after we noticed that every time we ran Momentum we had a breakdown , shaft coupling shattered,timing belt break,whatever, you name it we had it,so now we cann't run 48 without reinstalling the old cam but that hasen't happened yet(thank the gods). There is a 24/48fps system in Louisianna( i think in Baton Rouge)i met the projectionist at Imax HQ years ago and apparently we lent them our print for the grand openning. To the guy in Vansterdam B.C. the rotor air pressure and air jets start as soon as the projector starts and to whoever asked if your system was capable of 48fps, your shutter segments would be removable(for 48) and the cam unit is completly different than a conventional system. The cam arm moves in two directions,in to engage the perfs then to the side for slowdown and then pulls back for the release, the timing is set by degrees on a radial dial so if this is all unfamiliar to you i doubt you have a 48fps system.  |  IP: Logged System Notices Forum Watchdog / Soup Nazi Posts: 215 Registered: Apr 2004 posted 07-05-2009 12:42 AM                 It has been 593 days since the last post.  |  IP: Logged Jake Spell Master Film Handler Posts: 294 From: Johns Island SC Registered: May 2009 posted 07-05-2009 12:42 AM                     quote: Adam Martin The most fun I ever had was changing an HF diaphragm on the center channel during a showing of Space Station. Why were you trying to change a speaker during a movie? Why wouldn't you wait until after or cancel the show? Trying to change a speaker on scaffolding behind a screen while the movie is running sounds pretty unsafe and distracting to me.  |  IP: Logged Tony Bandiera Jr Film God Posts: 3067 From: Moreland Idaho Registered: Apr 2004 posted 07-05-2009 06:09 PM                     I've changed drivers during a film before, it's not that unsafe or distracting, you do have to be quiet while on the rigging and try not to let your flashlight beam hit the screen. And if the driver blows after the show started, then that's why I would do it during the show. Why refund an entire house or lose a whole show over a 10-15 minute repair?  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 07-06-2009 06:20 AM                     Thats one very good excuse to be installing baffle walls!!!  |  IP: Logged

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