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TOPIC: The Great Cover Up

The Great Cover Up 24 May 2001 12:32 #1697

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I know the importance of cover the platter when its not in use. But is it really necesary to cover it up between showings. To me it seems to be a waste of time that could be spent doing something more constructive.
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Re: The Great Cover Up 24 May 2001 21:30 #1698

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I cover my prints at night, I always have.

Additionaly you should whipe off the take up platter before threading on to it.
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Re: The Great Cover Up 25 May 2001 11:09 #1699

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Ouch. We never have covered the platter or prints. What should we be using? Drop cloth or special made item?
Michael Hurley
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Re: The Great Cover Up 25 May 2001 12:15 #1700

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We just cover ours during the Winter when their is the chance our 45 year old roof may leak on them! Is it to protect them from dust, to cover them at other times? We also clean our platters surfaces weekly, not every showing - but they stay very clean.
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Re: The Great Cover Up 25 May 2001 15:14 #1701

  • John Pytlak
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There's a long thread about proper use of a platter cover, whether to leave projectors threaded overnight, etc. over on the Film-Tech Film Handler's Forum:
http://www.film-tech.com

Here's what I had to say:


I agree. Covering prints between shows is a good idea. Certainly cover them if there are activities (e.g., masonry
demolition, construction, drywall work, painting) that could put dust into the air. Certainly cover them if the air
conditioning system is so dirty that it spews out a flurry of dust when the fan turns on. Certainly cover them if
there is any possibility of water dripping on the film.

But, keep the covers clean! Too often, the covers are thrown on the dirty floor, or never cleaned. It does more
harm than good to put a cover full of dust and debris onto the print.

In addition to print covers, consider other things that will keep the projection room dust-free. Use HEPA filters (the
pleated paper kind) over the heating/air conditioning ducts to trap any dirt that may be airborne. Use a central
vacuum system or damp mopping to keep floors and work surfaces clean. (A normal vacuum cleaner or shop vac
often doesn't filter out the fine dust particles, and spews them back into the air). Limit traffic through the
projection room, and change from dirty outerwear (e.g, muddy boots, raingear) BEFORE entering the projection
room.

Here's a quick test of cleanliness: clean a dark smooth surface by wiping it clean with a damp cloth. If enough dust
settles and accumulates in a week to clearly write your name in the dust, you need to take measures to reduce
the ambient level of dirt. Or do the "white glove" test of wiping your finger on surfaces of the platter and rewind
bench to see if there is any dust that the film may contact.


John P. Pytlak, Senior Technical Specialist
EI Worldwide Technical Services
Research Labs, Building 69
Eastman Kodak Company
Rochester, NY 14650-1922
Telephone: 716-477-5325 Cell: 716-781-4036 Fax: 716-722-7243
E-Mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Website: http://www.kodak.com/go/motion
John P. Pytlak, Senior Technical Specialist
Customer Technical Services
Entertainment Imaging
Research Labs, Building 69, Room 7525A
Eastman Kodak Company
Rochester, NY 14650-1922
Telephone: +1 585-477-5325 Fax: +1 585-722-7243
E-Mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Website: http://www.kodak.com/go/motion
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Re: The Great Cover Up 25 May 2001 19:42 #1702

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We have three screens and threee projectionists. Each of them is responsible for one booth from ceiling to floor to keep it perfectly clean. We do a "white glove" inspection about every two months and each of them takes turns doing it so they are ruthless on each other and really look for that smudge. That keeps the dust down.

Mike Hurley
www.bigscreenbiz.com
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