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» Film-Tech Forum ARCHIVE   » Community   » Film-Yak   » platter systems

   
Author Topic: platter systems
Alan Plester
Expert Film Handler

Posts: 209
From: great yarmouth england
Registered: Apr 2001


 - posted 08-15-2001 11:25 AM      Profile for Alan Plester   Email Alan Plester   Send New Private Message       Edit/Delete Post 
Not sure if this is where I should ask this question, but does anyone know why the platter system was taken up as ( in my humble oppinion )
the transport system in just about every cinema going. What was/is
wrong with towers?.
Also, anyone out there working with Cinemecannica projectors & platters,I would value some of your comments.


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Mitchell Cope
Master Film Handler

Posts: 256
From: Overland Park, KS, United States
Registered: Jun 99


 - posted 08-15-2001 12:32 PM      Profile for Mitchell Cope   Email Mitchell Cope   Send New Private Message       Edit/Delete Post 
I don't know much about towers, but don't you have to rewind the film after each showing?

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John Pytlak
Film God

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


 - posted 08-15-2001 12:52 PM      Profile for John Pytlak   Author's Homepage   Email John Pytlak   Send New Private Message       Edit/Delete Post 
AFAIK, the need to rewind after each show with towers is the primary reason platters "won" the battle of automation. A well-designed tower (reel) system can certainly rewind the show quickly, while controlling torque, film tension, and accelerations to minimize the risk of film damage. Large reels got an undeserved bad reputation with "home brew" reel arms and rewinds that damaged the film with poor tension control and rapid accelerations. Likewise, the systems that attempted to automatically rewind the film backwards through the projector gate gave large reel automation a bad rap.

Well-designed and properly maintained platter systems or tower systems can both be used with low risk of film damage.

------------------
John P. Pytlak, Senior Technical Specialist
Worldwide Technical Services, Entertainment Imaging
Eastman Kodak Company
Research Labs, Building 69, Room 7419
Rochester, New York, 14650-1922 USA
Tel: 716-477-5325 Cell: 716-781-4036 Fax: 716-722-7243
E-Mail: john.pytlak@kodak.com
Web site: http://www.kodak.com/go/motion


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Brad Miller
Administrator

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


 - posted 08-15-2001 02:22 PM      Profile for Brad Miller   Author's Homepage   Email Brad Miller       Edit/Delete Post 
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