Archived posting to the Leica Users Group, 2001/10/12

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Subject: [Leica] Re: Leica IIIc/LTM lenses/Jupiter
From: Mark Langer <mlanger@ccs.carleton.ca>
Date: Fri, 12 Oct 2001 16:19:42 EDT

> From: ray tai <razerx@netvigator.com>
> 
> My IIIf shutter sounds like a train wreck. What can it be?  It was just CLA'd.


Ray,

There could be a couple of reasons for this.  First of all, often what
passes for a CLA to remedy a sleepy shutter is accomplished by the cheap
and easy expedient of just tightening the tension on the curtains.  This
invariably leads to more noise.  The other thing is that there is an
internal plate that has a very subtle adjustment.  If it is just a hair
off, it seems to increase the shutter noise.  I had this pointed out to me
by Youxin Ye recently, and my own experience in adjusting this plate bears
out his claim.

Actually, the quietest shutter that I've experienced on a screwmount Leica
was a Leica II.  The older shutters with a top speed of 1/500th had lower
spring tension, and when properly set up are quieter than the later
models.  I can't see any pattern in shutter noise between IIIc and IIIf
models I have or currently own.  I think it has more to do with how well
the camera is adjusted, with variations in the manufacture and wear of
individual components adding other variables.

Mark

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Mark Langer

Email address: mlanger@ccs.carleton.ca
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