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 Post subject: 8mm breathing
PostPosted: Wed Mar 01, 2017 2:04 pm 
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Joined: Thu Dec 15, 2011 6:39 am
Posts: 20
Location: Israel
Here is a question, I wonder who can answer it.
How come my 8mm or super 8 mm film when projecting it "breaths" , meaning it goes slightly in and out of focus. How can it move in the gate???

Thanks
Andy


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 Post subject: Re: 8mm breathing
PostPosted: Wed Mar 01, 2017 5:52 pm 
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Joined: Tue Apr 26, 2011 4:51 pm
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Location: Loganville, Ga.
It could be one of a few things or a combination of. Do all your films breath8? If so, it could be the springs on the aperture pressure plate. Or it could be the films are curling because of excess moisture and(or) heat where they are stored. You can put the films on a rewind and apply a lubricant like Filmguard or Film Renew. This would relax the film and it it would lay flatter in the gate. If it is not all the films that go in and out of focus, then apply one of the chemicals to the problem film and let it sit for a day or two with a tight wind.

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 Post subject: Re: 8mm breathing
PostPosted: Thu Mar 02, 2017 1:55 am 
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Thanks Dan will look into all your suggestions. In case its the springs is there a way to replace them?? And where would u get them??

Thanks and regards
Andy


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 Post subject: Re: 8mm breathing
PostPosted: Thu Mar 02, 2017 2:37 am 
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What make and model projector do you you use?

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 Post subject: Re: 8mm breathing
PostPosted: Thu Mar 02, 2017 2:58 pm 
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Joined: Thu Dec 15, 2011 6:39 am
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Got quite a few but the main ones are

Eumig Mark S-810

Eumig Mark S 802 D

Mark 610 D

Thanks


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 Post subject: Re: 8mm breathing
PostPosted: Sat Mar 04, 2017 7:40 am 
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Joined: Tue Apr 14, 2015 4:09 am
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Location: Oxfordshire
I have had this with brand new prints, not all the way through, just for a couple of seconds, and this was with a new projector.

Has anyone else on here used Solvon Type 2, and how do they find it compared to other film cleaners/lubricants. I have one 16mm print that goes in and out of focus a bit; not sure that Solvon will cure this. The old lubricant I used, the now defunct 2.22 could make brittle film more ; I don't think Solvon has the same effect.


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 Post subject: Re: 8mm breathing
PostPosted: Sat Mar 04, 2017 1:10 pm 
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Andy Princz wrote:
Got quite a few but the main ones are

Eumig Mark S-810

Eumig Mark S 802 D

Mark 610 D

Thanks


If this problem happens with all these projectors, then it is not the pressure plates.

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 Post subject: Re: 8mm breathing
PostPosted: Sat Mar 04, 2017 7:24 pm 
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Thanks, will look into it more and let you know.
Regards
Andy


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