8mm Forum: Elmo k100 Split Glass Fungus

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Topic: Elmo k100 Split Glass Fungus

Rui Luis
Film Handler

Posts: 58
From: Lisboa, Portugal
Registered: Aug 2013

posted January 27, 2015 03:45 AM

Hello, someone can help me with removing fungus on the heat proof glass? Or someone have one of this parts for sell?

Kind Regards!

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John Capazzo
Master Film Handler

Posts: 421
From: Hillside, NJ USA
Registered: Jan 2004

posted January 27, 2015 06:21 AM

Hi Luis,

You don't really need the glass. Film won't burn without it; but if you're more comfortable with it on, just use white vinegar mixed with water. Glass is a non porous surface, so it cleans off almost immediately.

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"the image is about 30 feet ahead of us."

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Rui Luis
Film Handler

Posts: 58
From: Lisboa, Portugal
Registered: Aug 2013

posted January 27, 2015 06:24 AM

Thanks a lot John! Some people says without glass can burn the film. This already happens to me with other kind of projector without glass.

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John Capazzo
Master Film Handler

Posts: 421
From: Hillside, NJ USA
Registered: Jan 2004

posted January 27, 2015 09:32 AM

It can't melt film if it's running at 24 FPS. I've removed the glass on an ST 1200 (the 1st edition machine) and that machine is brighter than the D or HD and still didn't burn any film. If you're comfy leaving it on, clean it with the vinegar and water then finish it with glass cleaner.

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"the image is about 30 feet ahead of us."

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Andrew Woodcock
Film God

Posts: 7477
From: Manchester Uk
Registered: Aug 2012

posted January 27, 2015 11:22 AM

I wouldn't chance it on still frame though with the split glass removed. It can burn film in those circumstances.

This is especially probable if the diffuser mechanism isn't 100 percent, as a lot of these machines can be if the clutch mechanism has been maladjusted by people who do not know what they are doing.

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"C'mon Baggy..Get with the beat"

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David Ollerearnshaw
Phenomenal Film Handler

Posts: 1373
From: Penistone Sheffield UK
Registered: Oct 2012

posted January 29, 2015 01:01 PM

My st had this, but when you go into still frame a device that looks a bit like a tea strener with glass sandwiched between pops up to protect the film. My thoughts are that it was to keep the heat to a curtain ectent off the film gate it directed the air flow away from it.

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I love the smell of film in the morning.

http://www.thereelimage.co.uk/

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Andrew Woodcock
Film God

Posts: 7477
From: Manchester Uk
Registered: Aug 2012

posted January 29, 2015 03:06 PM

David, the part you are describing as a "Tea Strainer" is in fact the Diffuser that I refer to above.
It works in pretty much the way you describe where it only allows a small amount of light and therefore heat onto the stationary frame when the projector is placed in still mode.

Trouble is.. as with all things ST, the mechanism is somewhat "Heath Robinson" and therefore if the clutch mechanism has been maladjusted, this can, in turn, cause the diffuser to only partially block the frame or in some cases not at all.
This then, always results in a burned frame of film.

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"C'mon Baggy..Get with the beat"

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Brian Fretwell
Phenomenal Film Handler

Posts: 1785
From: London, UK
Registered: Jun 2014

posted January 29, 2015 03:58 PM

Another reason for these (though maybe not planned) is that if the halogen lamp bursts it protects the film and gate from pieces of quartz. I thought that my Agfa Family back projector had suffered from this when it was repaired. Of course with that the glass heat filter is in place all the time as stills are identified on the film with a burnt in marker, a bit like the 9.5 notch, that puts it into single frame projection mode.

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Andrew Woodcock
Film God

Posts: 7477
From: Manchester Uk
Registered: Aug 2012

posted January 29, 2015 04:23 PM

Brian,the diffuser would do nothing to protect the film if the lamp explodes in normal run mode as it is lifted well out of the way of the gate and film frame.

Maybe in still frame it would help, but how often do any of us use this facility? So what's the odds of the lamp exploding just as you do?

I must be lucky anyhow as I have never had a halogen lamp explode and cause any damage. Usually for me, the light just goes off and on inspection, the capsule is black or cloudy or both.

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"C'mon Baggy..Get with the beat"

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