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Topic: Platter positioning
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John Pytlak
Film God
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Posts: 9987
From: Rochester, NY 14650-1922
Registered: Jan 2000
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posted 11-07-2001 08:10 AM
Paul said: "This might sound stupid, but allow enough distance between the projector and platter to allow the film to "cool" to ambient temperature. I had some problems with stress "bubbles" developing on the CFS machines until I moved them further away from the projector."That's not "stupid" at all. A LARGE lamp with POOR heat filtration will heat the film considerably during projection. This drives moisture out of the film, and induces some curl. If you wind the film up while it is still hot, as it cools, it's dimensions might change enough to affect the winding quality on some platters. ------------------ John P. Pytlak, Senior Technical Specialist Worldwide Technical Services, Entertainment Imaging Research Labs, Building 69, Room 7525A 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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