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Author Topic: Is your picture a little jittery?
Leon Norris
Jedi Master Film Handler

Posts: 958
From: Elkins Park, PA, USA
Registered: Jun 2012


 - posted September 03, 2019 04:58 PM      Profile for Leon Norris   Email Leon Norris   Send New Private Message       Edit/Delete Post 
The reason is I was having this problem! Found out it was the pressure plate springs! So I replaced them and that solved the problem! I replaced them with Bolex pressure plate springs! They are a lot better than the Elmo springs! They have a lot more strength! And gives you a rock steady picture!

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Melvin England
Jedi Master Film Handler

Posts: 707
From: Hull, East Yorkshire, UK
Registered: Feb 2016


 - posted September 03, 2019 05:08 PM      Profile for Melvin England     Send New Private Message       Edit/Delete Post 
I also thought that other factors that could affect the jitters are...

1) Dry films - A well lubricated film would slip through easier.

2) Dirty films - Which, together with dry films, makes the claw work harder and affects 100% stability.

3) Slightly shrunken film. Super 7.9mm !

I would welcome fellow colleagues comments.

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"My name is for my friends!"

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Leon Norris
Jedi Master Film Handler

Posts: 958
From: Elkins Park, PA, USA
Registered: Jun 2012


 - posted September 03, 2019 05:16 PM      Profile for Leon Norris   Email Leon Norris   Send New Private Message       Edit/Delete Post 
Melvin, if you put a good pair of pressure plate springs on! That will keep your films running steady! I put mine threw a test! I tried films on the dry end and they stayed steady! These springs make a difference!

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Melvin England
Jedi Master Film Handler

Posts: 707
From: Hull, East Yorkshire, UK
Registered: Feb 2016


 - posted September 03, 2019 05:31 PM      Profile for Melvin England     Send New Private Message       Edit/Delete Post 
Thanks, Leon.

I will certainly check my projectors that are causing the most problems.

--------------------
"My name is for my friends!"

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Tom Photiou
Film God

Posts: 4837
From: Plymouth U.K
Registered: Dec 2003


 - posted September 04, 2019 01:17 AM      Profile for Tom Photiou   Email Tom Photiou   Send New Private Message       Edit/Delete Post 
The wrong spring pressure,(too much) in a gate can also scratch film.

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Osi Osgood
Film God

Posts: 10204
From: Mountian Home, ID.
Registered: Jul 2005


 - posted September 04, 2019 12:27 PM      Profile for Osi Osgood   Author's Homepage     Send New Private Message       Edit/Delete Post 
Nope, just my eyes! [Smile]

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"All these moments will be lost in time, just like ... tears, in the rain. "

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Leon Norris
Jedi Master Film Handler

Posts: 958
From: Elkins Park, PA, USA
Registered: Jun 2012


 - posted September 12, 2019 01:04 PM      Profile for Leon Norris   Email Leon Norris   Send New Private Message       Edit/Delete Post 
Also you can replace the aperture plate spring? If it is weak it can cause jitter!

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