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Author Topic: Balance stripes
Brad Kimball
Phenomenal Film Handler

Posts: 1165
From: Highland Mills, NY USA
Registered: Jun 2003


 - posted August 30, 2005 11:39 PM      Profile for Brad Kimball   Email Brad Kimball   Send New Private Message       Edit/Delete Post 
Does the balance stripe ever wear off? If so, is a film, at that point, pretty useless?

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John Whittle
Jedi Master Film Handler

Posts: 791
From: Northridge, CA USA
Registered: Jun 2003


 - posted August 31, 2005 12:34 AM      Profile for John Whittle   Email John Whittle       Edit/Delete Post 
The balance stripe should not wear off, it is the same material and thickness as the main stripe and is there originally to maintain the film flat in the gate.

If it is missing/worn, then the film will still function. Focus may be soft on one side, but the film will work. There are some Super8 prints without balance stripes and of course regular 8mm never had a balance stripe since there was no room for it.

John

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Douglas Meltzer
Moderator

Posts: 4494
From: New York, NY, USA
Registered: Jun 2003


 - posted August 31, 2005 10:39 AM      Profile for Douglas Meltzer   Email Douglas Meltzer   Send New Private Message       Edit/Delete Post 
Brad,

I have a number of Walton, Techno and Castle (yes, Castle!) prints that do not have a balance stripe. They all project just fine. I'm sure certain gates are more sensitive to the imbalance than others but I would be more concerned with what exactly is wearing those balance stripes down.

Doug

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I think there's room for just one more film.....

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Tim Christian
Expert Film Handler

Posts: 219
From: Norfolk, UK
Registered: Jun 2003


 - posted August 31, 2005 01:00 PM      Profile for Tim Christian   Author's Homepage   Email Tim Christian   Send New Private Message       Edit/Delete Post 
It is more a question of projector lens speed. Calculation shows that absence of balance stripe shouldn't cause change of focus across the frame with lenses of f/1.3 or slower.

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Tim

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Joe Taffis
Phenomenal Film Handler

Posts: 1564
From: United States
Registered: Jun 2003


 - posted August 31, 2005 07:36 PM      Profile for Joe Taffis   Email Joe Taffis   Send New Private Message       Edit/Delete Post 
the films that i've ran with no balance stripe are noisy, at least on my Elmo...the first time I ran one I thought it had sprocket damage! [Eek!]

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Joe Taffis

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Tony Milman
Phenomenal Film Handler

Posts: 1326
From: United Kingdom
Registered: Jun 2003


 - posted September 01, 2005 05:01 PM      Profile for Tony Milman   Author's Homepage   Email Tony Milman   Send New Private Message       Edit/Delete Post 
I have one that does not have a main stripe, only a balance stripe. Perhaps that would explain why the focus seems good (or is that my eyesight?)

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Tony

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