Archived posting to the Leica Users Group, 1997/08/30

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Subject: Re: M6 problem Survey
From: Dan Cardish <dcardish@microtec.net>
Date: Sat, 30 Aug 1997 08:05:16 -0400
 
At 05:57 PM 30-08-97 +0800, Ferdinand wrote:
>[snip]
>26 Leica M6 participated in the survey. Some owners had more than 1 M6 so
>it was included.
>
>The problem free M6 are years 1985-1994 totalled (13) M6's. There were also
>(7) M6's made in 1995-1996 that were trouble free suprisingly !
>
>The problematic M6 are years 95-96, maybe 97's but I'm not sure of the
>serial #, there were 6 of them out of the 26 M6's. In short, if you buy a
>later M6 like the ones made in 1995-1996, you have a 50% of getting a
>problematic M6 which most likely will stem from a faulty frame counter & at
>times isolated case of rf adjustments. That includes the recent M6 I bought
>recently !

Any statisticians on the LUG who would care to do an analysis of the above
data (confidence intervals, etc.)?

Dan C.