Archived posting to the Leica Users Group, 2000/08/09

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Subject: [Leica] Re: Heliar vignetting help ...
Date: Wed, 9 Aug 2000 21:40:32 EDT

I had this problem when I first got the 15 mm lens.  The adapter I was using 
didn't line up the lens at 12 o'clock.  I went to my local camera shop and 
tried different Bowers adapters until I got one that lined up at the right 
position.  Since then, no problems!
Dave Schaller
Newton, MA

From: "David Freedman" <>

Subject: [Leica] Heliar vignetting help ...

Message-ID: <00b501c00210$10e8d300$2cf94e0c@uymfdlvk>

References: <>

I recall seeing this subject addressed recently when I wasn't particularly

interested and now that I am, I can't seem to locate the messages in the LUG

archive. Hence this plea for help.

I recently purchased a Heliar and the first few rolls are showing what looks

to be pronounced vignetting in the lower left hand corner.  As I recall from

the earlier LUG messages, one possible "fix" for this is to rotate the mount

on the lens so that it lines up properly when screwed into the L-M adapter.

I do not have the Voigtlander L-M adapter (Bowers I think) and the lens is

indeed skewed by several degrees when screwed in.

Before I start loosening screws on the mount I was hoping that someone with

a better memory or filing system would kindly forward the relevant


Profuse thanks in advance.

Dave F.