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» Film-Tech Forum ARCHIVE   » Operations   » Film Handlers' Forum   » Adjustable pedestal for 35 flat v. scope optical centers (Page 2)

 
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Author Topic: Adjustable pedestal for 35 flat v. scope optical centers
Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12814
From: Annapolis, MD
Registered: Dec 1999


 - posted 05-17-2009 01:48 PM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
Do you have a Simplex 35/XL projector, by chance?

Steve

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Tony Bandiera Jr
Film God

Posts: 3067
From: Moreland Idaho
Registered: Apr 2004


 - posted 05-19-2009 01:53 PM      Profile for Tony Bandiera Jr   Email Tony Bandiera Jr   Send New Private Message       Edit/Delete Post 
quote: Louis Bornwasser
Tony; if you can swing the lens "door" or move the lens mount, the scope will move left to right twice as fast as flat. You can always make the left/right centers agree if you can "cheat" the lens mount some. Louis
Louis, thanks for the tip..I did discover something very interesting recently: the down angles on my machines are not the same. That and the adjustment of the lens turret stops may be what's causing the problem.

Each lens position on the turret has a stop plate that the lock pin goes into, it can be shifted a few degrees to either side.

My next move is to set the down angle on #2 to match #1 (which I never need to shift), then play with those stop plates to get the lenses to index to the same spots.

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Michael Brown
Phenomenal Film Handler

Posts: 1522
From: Bradford, England
Registered: May 2001


 - posted 05-20-2009 06:41 PM      Profile for Michael Brown   Email Michael Brown   Send New Private Message       Edit/Delete Post 
quote: Tony Bandiera Jr
at UC Irine the difference is bad enough on my #2 projector that I have to kick (literally) the machine a few inches to re-center my scope image.
Had to do that back when I worked at a college cinema. We only had one machine (a westar) but the plates hadn't been cut perfectly. When going from flat to scope the pedestle had to be kicked (literally) a few times to the left. (and then to the right when returning to flat).

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