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» Film-Tech Forum ARCHIVE   » Operations   » Film Handlers' Forum   » STATIC!!!!!! (Page 2)

 
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Author Topic: STATIC!!!!!!
Justin McLeod
Film Handler

Posts: 93
From: Oklahoma City, OK, USA
Registered: Jun 2002


 - posted 12-01-2003 04:58 PM      Profile for Justin McLeod   Email Justin McLeod   Send New Private Message       Edit/Delete Post 
Don't know if anybody will beleive this or not, but at my theater, I found out that threading the platter too hard had fast will cause static for movies that have been built up at full speed. I am of course reffering to the Christie platters with this as that is what we use, and my booth enviorment is also very dry.

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Travis Hubrig
Expert Film Handler

Posts: 175
From: Minot ND, USA
Registered: May 2003


 - posted 12-01-2003 05:12 PM      Profile for Travis Hubrig   Email Travis Hubrig   Send New Private Message       Edit/Delete Post 
Yes Paul it is amazing what Film-Guard does to carpet...
That's a different post.

You want to be careful that you don't get to much humidity in the air, you can make the film tacky, and get the same results as static. I had a projectionist running a humidifier right under a platter, the film was almost wet to the touch... he still insists that it was a static problem.

I don't use a humidifier in my booth I just keep the temp warm and allow the projectionists' sweat to keep the booth moist [Wink]

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Brad Miller
Administrator

Posts: 17775
From: Plano, TX (36.2 miles NW of Rockwall)
Registered: May 99


 - posted 12-01-2003 07:30 PM      Profile for Brad Miller   Author's Homepage   Email Brad Miller       Edit/Delete Post 
quote:
threading the platter too hard had fast
Huh? And I don't mean "huh" in the manner that I don't believe what you are saying, but "huh" in the manner that I can't figure out what it is you are trying to say. Can you reword please?

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Joe Redifer
You need a beating today

Posts: 12859
From: Denver, Colorado
Registered: May 99


 - posted 12-01-2003 07:54 PM      Profile for Joe Redifer   Author's Homepage   Email Joe Redifer   Send New Private Message       Edit/Delete Post 
I think he was trying to say "too hard and fast". But I don't know how you could thread a platter "hard". Wait... don't answer that.

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Phil Hill
I love my cootie bug

Posts: 7595
From: Hollywood, CA USA
Registered: Mar 2000


 - posted 12-01-2003 08:14 PM      Profile for Phil Hill   Email Phil Hill       Edit/Delete Post 
What always amazes me are those that complain about static while NOT following the "rules" about booth temperature and HUMIDITY as Kodak clearly specs.

Don't give me some lame reason that the "management" won't spring for the bux…. Quit whining and convince them of the necessity of a proper environment for film. I know in many cases that's unrealistic, but at least "you" know the truth. Been there, done that.

I have NEVER had a static problem when the environment was within the specifications. I have had loop cabinets throw a 3" arc to the case when I was dumb enuff to allow the environment fall outside of the specs.

OBTW: That is all special venue stuff where we have been using "plastic" polyester film for many moons!

Joe said: "too hard and fast"... hubba hubba!

>>> Phil

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Justin McLeod
Film Handler

Posts: 93
From: Oklahoma City, OK, USA
Registered: Jun 2002


 - posted 12-02-2003 03:46 AM      Profile for Justin McLeod   Email Justin McLeod   Send New Private Message       Edit/Delete Post 
Brad, "Too hard and fast" means threading the platter as fast as you can. I have seen other projectionists jerk on the leader pretty hard to get the speed up on the threading. But this happens ( to me ) when "our" movies get built up at full speed as we have Christie platter systems, and our booth environment is dry. The movies we have that are built up slower don't give us any problems, no matter how fast we thread up.

Sorry if my fist post sounded perverted, it was "NOT" meant to sound that way.

Anyway, like I said, don't know if anybody will believe me or not.

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Phil Hill
I love my cootie bug

Posts: 7595
From: Hollywood, CA USA
Registered: Mar 2000


 - posted 12-02-2003 03:59 AM      Profile for Phil Hill   Email Phil Hill       Edit/Delete Post 
Justin said:
quote:
Sorry if my fist post sounded perverted, it was "NOT" meant to sound that way.
Hey Justin, it's OK...Honest! Just "some" of us here are perverted! [beer]

>>> Phil

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Brad Miller
Administrator

Posts: 17775
From: Plano, TX (36.2 miles NW of Rockwall)
Registered: May 99


 - posted 12-02-2003 04:39 AM      Profile for Brad Miller   Author's Homepage   Email Brad Miller       Edit/Delete Post 
Justin, the speed the print was built has absolutely ZERO effect on how fast you are able to race that first 35 or so feet through the platter during threading.

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John Pytlak
Film God

Posts: 9987
From: Rochester, NY 14650-1922
Registered: Jan 2000


 - posted 12-02-2003 08:04 AM      Profile for John Pytlak   Author's Homepage   Email John Pytlak   Send New Private Message       Edit/Delete Post 
If Justin meant that BUILDING UP A PRINT onto the platter at excessive speed led to more static on the print, that could happen. Using excessive speed during make-up can lead to many problems, including more static.

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Justin McLeod
Film Handler

Posts: 93
From: Oklahoma City, OK, USA
Registered: Jun 2002


 - posted 12-02-2003 09:13 PM      Profile for Justin McLeod   Email Justin McLeod   Send New Private Message       Edit/Delete Post 
Brad, I am not kidding you about the static problems I have encountered at my theater, and they have always happened because the print or prints were built up at an excessive speed, and my dry booth environment doesn't help either. At my theater I have learned that threading up at an excessive speed ( on prints that have been built up at excessive speeds ) can cause static. It may be just a phenomenon at my theater, but I have seen it happen.

I you choose not to agree with me somewhat or not at all, I'm perfectly fine with it. You have the right to your own opinion, and I respect it.

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Brad Miller
Administrator

Posts: 17775
From: Plano, TX (36.2 miles NW of Rockwall)
Registered: May 99


 - posted 12-02-2003 11:36 PM      Profile for Brad Miller   Author's Homepage   Email Brad Miller       Edit/Delete Post 
Building a print fast can cause static issues. However threading fast has no bearing on static. It's a coincidence.

By the way, did you know that if you remove a reel of film from the shipping can with your left hand that it will cause static when you run it? Removing the reel with your right doesn't cause those problems. Coincidence? You decide.

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Paul G. Thompson
The Weenie Man

Posts: 4718
From: Mount Vernon WA USA
Registered: Nov 2000


 - posted 12-03-2003 12:25 AM      Profile for Paul G. Thompson   Email Paul G. Thompson   Send New Private Message       Edit/Delete Post 
Justin, I have had the unpleasent opportunity to build a print at warp speed from time to time in order to keep from losing a show because the print arrived late.

John is correct.

Excessive build up or tear down can cause one king sized charge under dry atmosphere conditions.

I have seen the arc-off of a plastic reel that was powerful enough to throw a spark over 1/2 of an inch long to the frame of a CFS MUT through the teflon hub. The CFS MUT hub has adjustable nylon drag screws for back-tension adjustments while building a print. They acted like a VandeGraaff generator.

By looking at the spark brightness and thickness, I sure would not like to get hit by that. The spark sounded and looked more powerful than what you might see on a xenon lamp igniter.

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Justin McLeod
Film Handler

Posts: 93
From: Oklahoma City, OK, USA
Registered: Jun 2002


 - posted 12-03-2003 07:54 AM      Profile for Justin McLeod   Email Justin McLeod   Send New Private Message       Edit/Delete Post 
Brad, I'm willing to accept that it is a coincidence. I will do some experimentation for a while and see what happens.

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Brad Miller
Administrator

Posts: 17775
From: Plano, TX (36.2 miles NW of Rockwall)
Registered: May 99


 - posted 12-03-2003 02:05 PM      Profile for Brad Miller   Author's Homepage   Email Brad Miller       Edit/Delete Post 
Justin,

Do it with identical prints. (2 copies of the same movie.)

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Jan Kisluk
Film Handler

Posts: 7
From: Conway, NH, USA
Registered: May 2001


 - posted 12-05-2003 01:17 AM      Profile for Jan Kisluk   Email Jan Kisluk   Send New Private Message       Edit/Delete Post 
Our dry NE winter weather and heated booths lead to a lot of static in our booths. We Film Guard the prints and I spray the freshly vacuumed carpets lightly with Downy fabric softener. It works like a charm to keep the static down.

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