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Author Topic: 'Bobby Jones' shedding problem? Dennis Benjamin Phenomenal Film Handler Posts: 1445 From: Denton, MD Registered: Feb 2002 posted 05-05-2004 04:38 PM                        Obviously it is the film stock. I remember when Schindler's List opened - there was a similar problem with all the theatres that were running it. Thank God for Film-Guard!  |  IP: Logged Steve Scott Phenomenal Film Handler Posts: 1300 From: Minneapolis, MN Registered: Sep 2000 posted 05-05-2004 07:02 PM                     Nothing abnormal about our Bobby Jones print. When I used to work with Christies, the most common source of shedding was the sprockets. I would check out how close the pad roller is to the sprocket teeth. On the Centuries I run now, this is the most common reason why a print would shed. I don't remember if the gate rails can be aligned on the Christies, but if one rail is slightly offset at the top or bottom I've seen shedding occur there too in our SA's.  |  IP: Logged Bruk Mogos Film Handler Posts: 19 From: USA Registered: Nov 2003 posted 05-05-2004 08:31 PM                     Derek,the problem you are having is coming from dirty film gate and tension bands&film trap, you need to clean this using WD40 and thute brush,this will remove all the residue and clean any dried film wax,then use the regular cleaner to lube every thing. as most of the print theye are coated with wax,the bad residue on the film trap is scraching the wax off the print and that's why you see all that snow on your projector.So one again is not the print.Let me know if this works.  |  IP: Logged Mark J. Marshall Film God Posts: 3188 From: New Castle, DE, USA Registered: Aug 2002 posted 05-05-2004 08:56 PM                    quote: Dennis Benjamin I remember when Schindler's List opened - there was a similar problem with all the theatres that were running it. I know the Black and White prints had that problem, but I seem to remember there were color stock prints around too... did they have the same problem? I know we also had that problem with "Ed Wood" - also B&W. That's why I always thought that black and white stock is more prone to shedding problems. Maybe I'm wrong on that. Edit: Fixed stupid broken sentence mistake. [ 05-05-2004, 10:20 PM: Message edited by: Mark J. Marshall ]  |  IP: Logged John Pytlak Film God Posts: 9987 From: Rochester, NY 14650-1922 Registered: Jan 2000 posted 05-05-2004 09:06 PM                        Back when "Schindler's List" and "Ed Wood" were released, the Kodak B&W print stock used definitely needed to be lubricated after processing, per SMPTE Recommended Practice RP151 and Kodak's H-24.02 processing specifications. I recall that the early prints of "Schindler's List" were not lubricated by the lab, but later B&W silver image prints did receive "TomaKote" treatment. Kodak has since added more lubricant to the film itself (can't add too much, or the big rolls of raw stock become too loose to handle without dishing), but post process lubrication will always provide additional protection against projector abrasion, and is still recommended for all prints by SMPTE RP151. Bruk: Derek's photo certainly looks like polyester debris from the base side of the film. I've seen it before. Kodak invested over $200 million to build a new base making machine for VISION Color Print Film to add a special proprietary anti-static scratch-resistant coating to reduce projector abrasion and "static cling": http://www.kodak.com/country/US/en/motion/newsletters/inCamera/fall98/print.shtml quote: Both new print films incorporate major advances in the science of emulsion design and manufacturing technologies. They are both coated on a rugged, new, more durable polyester base material manufactured by Kodak in a state-of-the-art factory... ...prints stay cleaner, resist scratches better and are more durable. This will enhance the movie-going experience... ...The new process-surviving antistat technology will greatly reduce the propensity for dirt attraction in theatrical projection."  |  IP: Logged Derek Miner Film Handler Posts: 10 From: Clearwater, FL, USA Registered: Apr 2004 posted 05-05-2004 09:55 PM                        I really appeciate everyone's comments. Of course, nobody wants things to go wrong in the booth, but at least this gives me an opportunity to learn. I was just told to clean up after each show. It didn't seem to me that anyone considered faulty hardware. I'll be sure to inspect the gate, pad rollers and sprockets next time I'm up there.  |  IP: Logged Randy Stankey Film God Posts: 6539 From: Erie, Pennsylvania Registered: Jun 99 posted 05-05-2004 11:13 PM                     Bruk; You're joking, right?! If I caught somebody doing that to my projectors I'd cross-wire his testicles through the ignitor circuit and repeatedly press the manual strike button to the beat of the song, "Were You Born An Asshole?"  |  IP: Logged Mike Olpin Chop Chop! Posts: 1852 From: Dallas, TX Registered: Jan 2002 posted 05-06-2004 03:45 AM                     FWIW, I also work in a Chrisite booth, and I noticed that Bobby Jones is sheding a lot as well. Not to the extent of your picture, but enough to get my attention. [ 05-06-2004, 01:31 PM: Message edited by: Mike Olpin ]  |  IP: Logged Carl Martin Phenomenal Film Handler Posts: 1424 From: Oakland, CA, USA Registered: Feb 2002 posted 05-06-2004 05:05 AM                        scott, godsend's on 2383 as well. we have print #1 of robot stories. no note in the can. my feeling is that the weather (increased temp/humidity) is probably responsible for the reappearance of dirt in our gates. nothing like the severity of derek's case, though. carl  |  IP: Logged Stephen Furley Film God Posts: 3059 From: Coulsdon, Croydon, England Registered: May 2002 posted 05-06-2004 06:14 AM                     I ran Schlindler's List just once, on a Kinoton FP-20 with a cinemeccanica tower. I'm almost certain that the black and white sections were on Agfa triacetate stock. I know for certain that the trailer was. I didn't notice what stock the colour sections were on. Had no problems running it. I don't think I've ever run a black and white polyester print. Are Agfa still making motion picture stocks? I was told that they had pulled out of this market, but I don't know if this is correct.  |  IP: Logged Richard Fowler Film God Posts: 2392 From: Ft. Lauderdale, FL, USA Registered: Jun 2001 posted 05-06-2004 07:28 AM                     Agfa is still very much into print stock and soundtrack recording film.  |  IP: Logged John Pytlak Film God Posts: 9987 From: Rochester, NY 14650-1922 Registered: Jan 2000 posted 05-06-2004 09:34 AM                        AFAIK, color print film and sound negative film are about the only motion picture films they still sell today. Kodak sells the most complete complete system of motion picture films, ranging from color and B&W camera films, to color and B&W print films, and everything in-between: http://www.kodak.com/US/en/motion/products/index.jhtml Kodak also stocks all current formats, ranging from Super-8 to 65mm and 70mm.  |  IP: Logged Mark J. Marshall Film God Posts: 3188 From: New Castle, DE, USA Registered: Aug 2002 posted 05-06-2004 10:08 AM                    FWIW, No shedding on our B&W Kill Bill reel 1... and I've been looking. Of course, we Film Guard the hell out of everything.  |  IP: Logged John Pytlak Film God Posts: 9987 From: Rochester, NY 14650-1922 Registered: Jan 2000 posted 05-06-2004 10:28 AM                        Kodak has made significant improvements to the B&W print film, and the recommended post-process lubrication always helps too.  |  IP: Logged Mark J. Marshall Film God Posts: 3188 From: New Castle, DE, USA Registered: Aug 2002 posted 05-06-2004 03:01 PM                    I can tell! Thanks!  |  IP: Logged

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