Archived posting to the Leica Users Group, 1996/11/24

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Subject: Re: Screw Mount Lens Thread Size
From: Alan Bearden <healey@garnet.berkeley.edu>
Date: Sun, 24 Nov 1996 17:20:50 -0800
 
At 04:09 PM 11/24/96 -0700, you wrote:
>Alan,
>
>How did you measure it? 
>
>Chris
>
>
>At 02:04 PM 11/24/96 -0800, you wrote:
>>The Leica screw mount is 39mm x 1mm (thread); not 26 tpi.  I just measured
>>several using a comparison microscope.
>>
>>Alan Bearden
>>
>>
>>
>
>****************************************************
>C.M. Fortunko, Ph.D.
>Group Leader, Materials Characterization (853.05)
>National Institute of Standards and Technology
>Materials Science and Engineering Laboratory
>325 Broadway
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>
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>
Two ways, pitch to pitch and by comparison with a 1mm thread
standard.
>