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Author Topic: Print spoking and humidity Adam Martin I'm not even gonna point out the irony. Posts: 3686 From: Dallas, TX Registered: Nov 2000 posted 01-02-2003 07:12 PM                     I have a print here that is spoking for reasons that I cannot figure out. Relative humidity is 47%. Normally, prints here start spoking when RH gets below about 35%. Of the 24 prints in this room, this is the only one doing this. The print is The Lion King and RPG Productions says it was printed on Kodak Vision Premier stock and is not treated in any way. The print has been in this condition since it arrived at the theater in October. Normally, a print will arrive in a funky condition and will ease up as the emulsion soaks up moisture from the air over the first week in the booth. In this photo, the print in question is shown with another non-spoking print. The print is not damaged in any way and looks just fine on screen. What gives?  |  IP: Logged Claude S. Ayakawa Film God Posts: 2738 From: Waipahu, Hawaii, USA Registered: Aug 2002 posted 01-02-2003 07:22 PM                        Adam, What gives? I thought Disney only released the movie in IMAX at Christmas. -Claude  |  IP: Logged Adam Martin I'm not even gonna point out the irony. Posts: 3686 From: Dallas, TX Registered: Nov 2000 posted 01-02-2003 08:17 PM                     This is at an Imax theater. And yes, we do have 24 prints for this one screen. With eight more prints on the way in the next six months.  |  IP: Logged Claude S. Ayakawa Film God Posts: 2738 From: Waipahu, Hawaii, USA Registered: Aug 2002 posted 01-02-2003 09:53 PM                        Adam. How is it possible you are showing other IMAX films in addition to "THE LION KING"? The Disney film is showing five times a day at the Waikiki IMAX in Honolulu with two showings at 3:00 and 9:00 PM of the 'In House' IMAX film "HIDDEN HAWAII. When "BEAUTY & THE BEAST" played in this theatre this time last year, the theatre was not permitted to show any other film from what I have been told. -Claude  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 01-02-2003 10:01 PM                     We have 48 prints at Cinesphere minimum at any time This spoking is always odd occurance ecept for 2 films that spoke at any humidity for no reason  |  IP: Logged Adam Martin I'm not even gonna point out the irony. Posts: 3686 From: Dallas, TX Registered: Nov 2000 posted 01-02-2003 10:42 PM                     We have a valuable school group program here that we were not willing to give up for a film that doesn't deserve to play full-schedule for four months straight. What are those two funky prints of yours, Gordon? They wouldn't happen to be on triathlon stock, would they?  |  IP: Logged Michael West Film Handler Posts: 67 From: Halifax, Nova Scotia, Canada Registered: Apr 2000 posted 01-02-2003 10:55 PM                        i have the same thing with part one of starwars aotc, my liom king is fine.  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 01-02-2003 11:10 PM                     No they predate Triathelon Africa the Seringeti and Ring of Fire are the two bad boys  |  IP: Logged John Pytlak Film God Posts: 9987 From: Rochester, NY 14650-1922 Registered: Jan 2000 posted 01-03-2003 08:58 AM                        "Spoking" is usually due to excessive film curl from very low humidity. However, excessive winding tension can also cause spoking. It may also be possible the print was stretched slightly due to excessive tension at some point in its life: http://www.kodak.com/country/US/en/motion/support/technical/hand.shtml http://www.kodak.com/country/US/en/motion/newsletters/pytlak/sept99P.shtml  |  IP: Logged Adam Martin I'm not even gonna point out the irony. Posts: 3686 From: Dallas, TX Registered: Nov 2000 posted 01-03-2003 04:20 PM                     Hmmm ... RPG preassembled this print, as they did with Beauty and the Beast. Disney pays them extra for this service. Combined with the other Lion King problems we encountered getting this film ready and previous problems with BATB, it looks like Disney can expect a phone call from me on Monday. They will have to add me to the list of theaters that wish to receive their large format prints shipped unassembled on cores. In the future, Disney prints preassembled by RPG will be refused. If I'm going to have to meticulously inspect all of their work, I might as well just do it myself and then I won't be able to complain about it. Ironically, Ultimate X arrived in perfect condition last summer.  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 01-03-2003 07:03 PM                     To bad it wasn't DKP70mm Inc as I have never rejected one of there prints. I ask for all new films to arrive unassembled and then we do it ourselves with the UltraSonic splicer  |  IP: Logged Dick Vaughan Phenomenal Film Handler Posts: 1032 From: Bradford, West Yorkshire, UK Registered: Jul 2000 posted 01-07-2003 03:45 PM                        We're not playing Lion King here in Bradford but I just got off the phone after talking to the guys at the IMAX theatre in Bournemouth. They are also experiencing the spoking effect on their print of Lion King. BTW Adam I haven't forgotten you. I will post your beer vouchers from Toronto next week  |  IP: Logged William Leland III Master Film Handler Posts: 336 From: Charleston, SC, Registered: Aug 2002 posted 01-07-2003 06:37 PM                        At the Charleston IMAX our " Lion King " print is also spoking. We also had problems with SWEP:II spoking. We have a de-humidity in our booth. Do all IMAX booth have one also?  |  IP: Logged John Pytlak Film God Posts: 9987 From: Rochester, NY 14650-1922 Registered: Jan 2000 posted 01-08-2003 08:30 AM                        William Leland III wrote: "We have a de-humidity in our booth. Do all IMAX booth have one also?". Kodak recommends film projection rooms be maintained at 50 to 60 percent relative humidity for optimum print performance. I recall that IMAX specs are similar, with a bit more range allowed on the low side. Most facilities will require adding moisture (humidification), especially during the heating season or in desert environments. Theatres in humid or tropical areas (like Charleston SC) may need additional dehumidification if their HVAC systems cannot keep the humidity lower than about 65% on wet or humid days.  |  IP: Logged Adam Martin I'm not even gonna point out the irony. Posts: 3686 From: Dallas, TX Registered: Nov 2000 posted 01-08-2003 10:27 AM                     Imax specs the booth at 40-60% RH. Usually, the air handler is specified to include an outboard steam humidifier in the ductwork for use during the dry season and a programmable re-heat system to dehumidify the air during the rainy season. What actually gets installed is usually another story. Emerson makes some really nice large capacity portable humidifiers in their MoistAir line. Don't forget the proper chemicals to help prevent bacteria growth and filter scaling in your portable. Portable dehumidifiers are also available, but they either need to be constantly emptied or hooked up to a drain. If the air handler can be programmed for re-heat dehumidification, it is much more effective.  |  IP: Logged

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