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Author Topic: Avatar's Aspect Ratio Craziness Mark Strube Master Film Handler Posts: 322 From: Milwaukee, WI, United States Registered: Feb 2007 posted 12-18-2009 11:39 PM                        quote: Kevin Fairchild Credits start at 2:35:00 Thank you Kevin, you were spot on!  |  IP: Logged Frank Angel Film God Posts: 5305 From: Brooklyn NY USA Registered: Dec 1999 posted 12-19-2009 05:53 AM                        We just got home from a 2am IMAX screening & an early breakfast. I am a huge fan of 3D, and was extremely impressed with the IMAX system save one thing -- they are going to HAVE to do something about the screen brightness. There were scenes where I just wanted to shout at the characters to turn some lights on the set on. There were many scenes where the detail just faded away because it was just too damn dark. This IMAX was using two projectors so I would have thought they would get plenty of light on the screen, but I am afraid not. I can't imagine what this looks like with a single Dprojector trying to do 3D. I want to see it again in 35mm just to see it in a well lit presentation, not to mention the extra expansive feeling the wider image will give. They didn't ever break the virtual envelope like I thought might be the case. Also, happily there were only minimal scenes where the convergence was in front of the screen and even then it was only used so things that could float could come closer to the audience in the foreground. This is easy to do with floating objects because they can be kept from being intersected by the screen. When it was done, it was very effective and carefully choreographed. And the best thing was, there was never a shot change where the convergence point changed abruptly from one extreme to another (always a cause for eye strain when your muscles are forced to have to pull your eyeballs closer together or farther apart in an instant). In fact, there were times I barely was aware I was watching 3D, it felt so natural, but then some incredibly spectacular shot appeared that looked like a futuristic Impressionist painting only with incredible depth and I'd catch my breath at the beauty of it. This really is one incredible accomplishment. I have some reservations but they are subject aesthetic stuff not proper for this forum. See you in the review forum. Question: were there 70mm prints and thus 70mm engagements? The credits seem to indicate this.  |  IP: Logged Philip Wittlief Film Handler Posts: 57 From: Chicago, IL Registered: May 2003 posted 12-19-2009 12:54 PM                        Anybody notice that the Projection Spec sheet for 3D says that you can't crop the top and bottom of the picture but you can crop the sides? Isn't that opposite of every other 3d framing chart. Did they just write this wrong or was it composed differently?  |  IP: Logged Mark Lensenmayer Phenomenal Film Handler Posts: 1605 From: Upper Arlington, OH Registered: Sep 1999 posted 12-19-2009 01:49 PM                     There are some 70mm 15/70 prints of AVATAR, most are 3D. They run right to the edge of their biggest platter. One person on another site said each print uses 20 miles of film!  |  IP: Logged John Hawkinson Film God Posts: 2273 From: Cambridge, MA, USA Registered: Feb 2002 posted 12-19-2009 04:59 PM                     Given that a typical 35mm print is 2 miles, 20 miles for 3D 15/70 doesn't seem too surprising. --jhawk  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 12-19-2009 08:42 PM                     ..or, 90fpm with 35mm against 333fpm with IMAX .. Dang stuff really flies off them decks towards the Projection head units. Oh, a full deck of film weighs in over half a ton...they got a small hyster up in those booths to scoop prints from deck to floor (or on their side).. You oughta see the individual boxes of film (one box per roll-no reels) going up the hole in the middle of the floor via a cable hoist... -Monte  |  IP: Logged Carsten Kurz Film God Posts: 4340 From: Cologne, NRW, Germany Registered: Aug 2009 posted 12-20-2009 05:55 AM                     quote: Joe Redifer There was a place in Germany that wasn't able to start the show because they couldn't get enough keys, so they had to refund the show. It wasn't one place. It was dozends, evenapproaching a hundred shows canceled. Big buzz in german media already. I didn't hear about the format issue so far, though. They were all KDM issues. - Carsten  |  IP: Logged Frank Angel Film God Posts: 5305 From: Brooklyn NY USA Registered: Dec 1999 posted 12-20-2009 06:18 AM                        quote: Mark Lensenmayer There are some 70mm 15/70 prints of AVATAR, most are 3D. Anyone have a list of where these are playing? quote: They run right to the edge of their biggest platter. One person on another site said each print uses 20 miles of film! Hmmm, a thrown IMAX 15/70 print of AVATAR; now THAT would be one hellofa sight to see. Has there ever been a thrown IMAX print?  |  IP: Logged Mark J. Marshall Film God Posts: 3188 From: New Castle, DE, USA Registered: Aug 2002 posted 12-20-2009 07:05 AM                    I believe the United Artists King of Prussia in Philly has it in 15/70.  |  IP: Logged Mike Olpin Chop Chop! Posts: 1852 From: Dallas, TX Registered: Jan 2002 posted 12-20-2009 12:11 PM                     quote: Frank Angel Hmmm, a thrown IMAX 15/70 print of AVATAR; now THAT would be one hellofa sight to see. Has there ever been a thrown IMAX print? Metal guards fastened to the edge of the print make throwing impossible.  |  IP: Logged Brad Miller Administrator Posts: 17775 From: Plano, TX (36.2 miles NW of Rockwall) Registered: May 99 posted 12-20-2009 12:16 PM                     Actually it still IS possible, just highly unlikely. Those metal guards don't completely wrap around the print. They have gaps in them and toward the end of the film if the platter was to start jerking, the film could get thrown through those. Again though, it is highly unlikely.  |  IP: Logged Chris Slycord Film God Posts: 2986 From: 청주시, 경북도, South Korea Registered: Mar 2007 posted 12-20-2009 12:58 PM                     And if it jerked fast enough, the edge of the print could get thrown over the guards and get a tail wrap (but as you say, it's unlikely).  |  IP: Logged Adam Martin I'm not even gonna point out the irony. Posts: 3686 From: Dallas, TX Registered: Nov 2000 posted 12-20-2009 01:38 PM                     The print is SUPPOSED to have a belt around it that velcroes to the eight film clamps, which are themselves pressing against the film roll and bolted to the platter. I'm not saying it's impossible, but with the safety systems in place, the event would have to involve some sort of catastrophic event such as operator negligence or a major earthquake.  |  IP: Logged Mike Olpin Chop Chop! Posts: 1852 From: Dallas, TX Registered: Jan 2002 posted 12-20-2009 01:41 PM                     (Refering now only to 15/70mm MPX IMAX, other systems may vary) In show mode, the platter cannot jerk like it does in thread mode. Both decks are not independently controlled by their feedplates or their take up arms. Rather, data is collected from the feedplate and take up arm. The computer slowly adjusts its speed for a given deck only if it detects an ongoing condition. The idea is that is a small bubble in the payout is present, the platter doesn't jerk to catch up with it. In threading mode, however, the platter behaves more like a 35mm one, reacting immediately to the data collected from the feedplate. A velcro band is used around the print. On the inside of the brackets there is also a velcro strip, so it a print starts squeezing through a gap like Brad describes, the velcro should keep it from getting far enough through the gap to create a problem. While not impossible, I would wager that planes crash more often than IMAX prints throw.  |  IP: Logged Jeremy Jorgenson Phenomenal Film Handler Posts: 1002 From: Chicago, IL, USA Registered: Feb 2005 posted 12-21-2009 07:08 PM                        quote: Frank Angel Has there ever been a thrown IMAX print? note the word quote: Frank Angel was the last to post ever Yes there definitely has been! I've had to deal with that a couple times. The first IMAX theatre I worked at only had a couple platters with holes drilled into them for the clamps. Generally we ran without them, I think they were only used for some specially treated prints or something. Of course, eventually all the platters got fitted with clamps. This was ten years (or so) ago, though.  |  IP: Logged

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