Archived posting to the Leica Users Group, 2000/12/11

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Subject: Re: [Leica] 50mm Summicron question
From: "Roy Zartarian" <royzart@connix.com>
Date: Mon, 11 Dec 2000 21:32:08 -0500

The failure of the adhesive holding the front section of the 
Summicron in place is, I think, an "undocumented feature" of the 
lens.  It's happened on each of my Summicrons. The first time I 
had it repaired.  The second time I just screwed the thing back in 
tightly and left it alone.  

Roy


On 11 Dec 2000, at 20:32, Brian wrote:

> I've been a Lurker for quite some time now and thought it was about time to
> post.  I just picked up a used 50mm Canadian Summicron this weekend from my
> local shop to complement my M6 and 35mm Summilux.  Well I got home, mounted
> the summicron on the M6, and preceded to take a test roll.  When I was done
> I went to take the 50 off and put the 35 back on.  I pushed the lens release
> button and began to unscrew the lens.  Instead of grabbing behind the
> focussing ring where I guess you are supposed to, I grabbed the barrel to
> twist off the lens.  Imagine my suprise when the half of the lens in front
> of the focussing ring started to unscrew.  I was then curious so I went
> ahead and unscrewed it.  This left half of the lens with all the glass in it
> in my hand and the focussing ring and bayonet mount still on the camera.
> Now to the point of my post.  Is this normal?  It sure does make it easy
> getting to the rear element for cleaning.  Should I just take the lens back?
> Any help would be appreciated.  Thanks
> Brian
>