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Topic: Eumig S 807D projector speeds?
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Richard Kemp
Film Handler
Posts: 68
From: London
Registered: Jun 2009
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posted January 16, 2013 09:10 PM
Thanks John & Maurizio,
Yes, I sometimes make my own films then like to transfer them to dv.
Well, I am amazed. The Eumig's apparent pots resemble the speed pots on my Bell & Howell TQIII if smaller. The previous owner or indeed the factory has colour marked the exact position for both controls on the Eumig, so they can be re-set exactly. However - although it fascinates me - I do not use striped film so audio is not going to be an issue.
I have checked the S807D it is a three blade projector so what you say about 16.66fps should tally with my cam which has a shutter speed of 1/50th. Which slider speed at 60Hz would give me 16.66 please, 18 or 24?
Many thanks again,
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Ric
Paillard Bolex H16 Reflex. Projectors: Elmo GP-E, Eumig S807D; B&H TQIII. Editors: Erno E1201, Prinz Oxford 1200, Muray 16mm.
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Richard Kemp
Film Handler
Posts: 68
From: London
Registered: Jun 2009
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posted January 17, 2013 08:14 PM
Thanks Steve,
There is the problem. If you follow the line of the wheel shaft through the projector it would emerge in the general region of the audio panel, on the opposite side of the projector.
capstan / flywheel shaft
Any idea how to remove this panel please? There is a large screw to undo but the panel is then held in place by the tone, volume and also the main selector dial just beneath the speed slider.
I can't see any method for removing these knobs, there are no screws locking them to their shafts that I can see?
There's also the Super / Regular sound switch right on top of the capstan, in fact this unit including the switch effectively conceals the capstan. I am wondering if 'N' or 'S' settings might affect the flywheel / capstan? That's a long shot.
capstan / gauge select, audio unit
[ January 17, 2013, 09:16 PM: Message edited by: Richard Kemp ]
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Ric
Paillard Bolex H16 Reflex. Projectors: Elmo GP-E, Eumig S807D; B&H TQIII. Editors: Erno E1201, Prinz Oxford 1200, Muray 16mm.
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Steve Klare
Film Guy
Posts: 7016
From: Long Island, NY, USA
Registered: Jun 2003
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posted January 17, 2013 11:07 PM
For silents it doesn't matter at all. For sound films it's night and day.
The problem you have here is you have two kinds of motion going on at the same time. The film in the gate moves, stops, is projected onto the screen(three times actually) and then moves on to the next frame before starting all over again. The film past the sound heads is just a continuous flow at constant speed.
The average speed is the same, but one is stopping, bursting forward and stopping, and one is just sliding by like a river.
How is this possible in the same piece of film?
There’s a loop of film below the gate. One end is pulsating from the action of the claw in the gate, the other is constant speed. Since there is no tension in the loop, most of the pulsation is used up in the loop vibrating back and forth, but you still need something with a lot of inertia to really smooth it out: that's why there is a flywheel right before the heads with a roller on the film surface.
A sound projector without a functioning flywheel couldn't isolate this pulsation from the sound heads, and whether it was a war picture or not, you might just hear a sound something like machine guns in your sound.
It's one of those nice, simple solutions to problems smart men figured out before they started writing "code" to make the World right (so far: not so good!).
I bet you can fix it!
When you find the capstan see if it clamps down on the film when you go into "forward/project". Usually it remains disengaged so you can thread the film. Maybe it's hung up...
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All I ask is a wide screen and a projector to light her by...
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