[Leica] 50/2 Summitar LTM

[shino at panix.com (Rei Shinozuka)]

i think that jim was talking about was the sliding barrel 
guide groove, visible under the f16 marking on the summicron 
in the lowest image of this page:

http://www.shinozuka.org/leica-m3-5/

if forced to turn, the entire collapsing part can turn within
the mount and the smooth barrel can become scored, as my example
summicron shows.  (it was that way when i got it, honest!)

the dymo tape trick was the recommended way to mount
a collapsible on your M5 without fear that in collapsing,
the rear of the assembly would mash the swinging meter
arm.

-rei


On May11 17:50, Bill Smith wrote:
> Somebody on the RFF suggested wrapping a piece of Dymo tape around the 
> lens body to keep it from collapsing--sounds like a good idea to me.
> 
> Jeffery Smith <jsmith342@cox.net> wrote:  Thanks for the heads-up on that, 
> Jim. I may just keep it extended 90% of the
> time. I rarely try to cram a camera that big into my trouser pocket anyway.
> I hope to have something to show this weekend.
> 
> Jeffery Smith
> New Orleans, LA
> http://www.400tx.com
> http://400tx.blogspot.com/
> 
> 
> 
> -----Original Message-----
> From: lug-bounces+jsmith342=cox.net@leica-users.org
> [mailto:lug-bounces+jsmith342=cox.net@leica-users.org] On Behalf Of Jim
> Nichols
> Sent: Friday, May 11, 2007 7:12 PM
> To: Leica Users Group
> Subject: Re: [Leica] 50/2 Summitar LTM
> 
> 
> Jeffery,
> 
> Congratulations on the acquisition of the Summitar. I'm sure that you will 
> enjoy it. One word of caution. There is a small groove in the barrel that 
> keeps the lens from rotating when it is unlocked. I have seen a few lenses 
> where the lens has been twisted too hard while unlocked, and the pawl that 
> rides the groove has marked the barrel. Treat it with respect.
> 
> Jim Nichols
> Tullahoma, TN USA
> ----- Original Message ----- 
> From: "Jeffery Smith" 
> To: "'Leica Users Group'" 
> Sent: Friday, May 11, 2007 6:59 PM
> Subject: [Leica] 50/2 Summitar LTM
> 
> 
> > Just got a 50/2 Summitar from Sandy Ritz. And it appears to be okay to 
> > use with my Canon 7 (nothing hitting any baffles). I was a bit 
> > surprised that the front element unscrews(!) Haven't seen that in any 
> > lens other than my father's Retina.
> >
> > Should be a fine lens for FP4+ and PMK Pyro, or with BW400CN.
> >
> > Jeffery Smith
> > New Orleans, LA
> > http://www.400tx.com
> > http://400tx.blogspot.com/
> >
> >
> >
> > _______________________________________________
> > Leica Users Group.
> > See http://leica-users.org/mailman/listinfo/lug for more information
> > 
> 
> 
> 
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> 
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-- 
Rei Shinozuka shino@panix.com
Ridgewood, New Jersey