Archived posting to the Leica Users Group, 1999/01/20

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Subject: [Leica] M6s Scratching film
From: "Gib Robinson" <>
Date: Wed, 20 Jan 1999 12:33:03 -0800

 -Gary S. Colby wrote:

>I've got two recent vintage M6's, one of which may be scratching film.
> Do you have experience with testing and detection, and subsequent repair?
> understand that it's possible to replace the pressure plate back, to
polish the
> pressure plate with a chamois.
>	I've tested each body with factory-load Tri-X and wasn't able to detect
> the scratching, but I've noticed it in some of my slides.
> With the Tri-X loaded there seems to be considerable resistance to
> rewinding; I've been a little concerned about that.
>In advance, I thank you for your advice.


I've experienced two sorts of film-scratching -- one from an obvious source,
one not. The obvious source was wind-blown dust. That's a constant problem
when you're shooting and re-loading out doors. But I've also found that if I
rewind the film slowly I can avoid some of the smaller scratches created by
minute particles of various kinds that seem to find their way into the
camera body no matter what I do. Chrome emulsions seem particularly