Archived posting to the Leica Users Group, 2001/07/31

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Subject: Re: [Leica] 39mm non-leica filters
From: John Collier <jbcollier@powersurfr.com>
Date: Tue, 31 Jul 2001 09:56:35 -0600

The 40/2 Summicron-C uses 39 x 0.75 filter thread.

John Collier

> From: Marc James Small <msmall@roanoke.infi.net>
> 
> At 08:32 PM 7/30/01 -0700, Henning Wulff wrote:
>> There is only one diameter for 39mm filters, but there are two
>> pitches; 0.5 and 0.75mm/turn.
> 
> Well, yes, but I believe 0.5mm is the one both Leitz/Leica uses and the one
> in which the commonly made E39 filters (B+W, Heliopan, Harrison & Harrison)
> are made.  I suspect 39mm by 0.75mm would be a special-order item.
>

Replies: Reply from Marc James Small <msmall@roanoke.infi.net> (Re: [Leica] 39mm non-leica filters)
Reply from Matthias Nickel <matthias.nickel1@uni-bielefeld.de> (Re: [Leica] 39mm non-leica filters)