Archived posting to the Leica Users Group, 1999/04/17

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Subject: Re: [Leica] M6 Shutter accuracy?
From: Mark Rabiner <mrabiner@concentric.net>
Date: Sat, 17 Apr 1999 21:27:43 -0700

Walter S Delesandri wrote:
> 
> Ted, Ted,
> I've corresponded with Wayne....now >IF< his measurements were
> correct, (his methodology seems reasonable, if a bit unorthodox)
> It's DAMN sure a photographic problem....shoot a Velvia slide
> with even subjects tones at f8 -- then shoot one
> at two thirds a stop over....there's a bunch of difference...
> YES it's going to affect his photographic result, in some cases,
> at those speeds....fortunately, a minor tweak of the (probably)
> second curtain travel time (a 'non-invasive' adjustment, BTW)
> will fix it....
snip
> Best as always,
> time for my pill,
> Walt
snip
How long did it sit on a shelf before it went through this test without
a roll put though it?
I would get a few rolls put through it first to warm it up before I
started hooking it up to an oscilloscope. The camera had dried out on
the shelf.
Mark Rabiner