[Leica] Leica R lenses on Nikon bodies with the Leitax bayonet

[wildlightphoto at earthlink.net (wildlightphoto@earthlink.net)]

Jim Nichols wrote:

>If I install the 28 on an adapter which has no mechanism to contact the 
>lens 
>part that broke, will the aperture ring still operate the aperture leaves?

Depends on how much broke off.  The aperture ring is directly connected to 
the inner aperture ring, (the thing that stops the arm) and in all of the 
lenses I've worked on it's immediately inboard of the aperture ring.  Break 
off enough of the arm and it will miss the stop and close to minimum 
aperture or smaller, no matter what the aperture ring is set to.

The arm is part of the inner aperture ring assembly which as a new 
replacement part was $300 a number of years ago.

Doug Herr
Birdman of Sacramento
http://www.wildlightphoto.com