[Leica] 135mm lens

[jeremy.kime@bbc.co.uk]

Joe wrote:
>
>I recently purchased a 135MM Tele Elmar, serial 2,144,xxx . I can put it   
on my
>M3, however cannot mount it on either of my M6's . It will turn about   
1/8 "
>but hits a "hard"stop and will not turn enough to engage the lock.   
Anyone have
>any ideas about this? Joe Zarick, Cinn, Ohio
=================================

Joe,
A couple of thought here, I once had a similar experience trying to mount   
an older 135 lens on my Dad's M6, it was sooooo stiff! He was reluctant   
to let me persevere...

Some 135 lenses do not have a focusing cam around all of the rear of the   
lens, but merely a short section, spanning 30 degrees or so, could it be   
that this is reaching the r/f roller and stopping there?, one would   
imagine the lens and roller are deisgned for this not to happen, but you   
might alleviate the problem by refocusing the lens so that the cam is at   
its minimum extension before trying to mount the lens.

regards,
Jem