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

[cummer at netvigator.com (H&ECummer)]

Hi Doug,
I have mis-spoke by generalizing about "all" Leica lenses being  
reversible.
Thanks for the clarification. On the Leitax info page for Nikon the  
following lenses cannot be changed "due to physical incompatibility"
Elmarit           35/2.8   1 cam
Vario-Elmar  35-70/4  ROM
Telyt-R           400/6.8
For the Telyt your explanation explains why. But would it matter if  
you never use the Telyts on an SL?
Cheers
Howard

> Date: Wed, 14 Jan 2009 18:05:26 -0500
> From: "wildlightphoto@earthlink.net" <wildlightphoto@earthlink.net>
> Subject: RE: [Leica] Leica R lenses on Nikon bodies with the LeiTax
>       bayonet
> To: lug@leica-users.org
>
> Howard Cummer wrote:
>
>>>>
> ... given that the bayonet change is completely reversible on R
> lenses - don't be too hasty. Wait and see what comes down the pike in
> terms of usage and picture quality.
> <<<
>
> Reversability was one of the major design goals of the Leitax  
> conversion.
> Unfortunately a reversible conversion isn't possible with the f/6.8  
> Telyts.
> The conversion involves removing the first and second cams and on  
> the f/6.8
> Telyts the fixed SL nul cam apparently would need to be ground away in
> order to fit the replacement flange on the lens, since the Nikon  
> mount is a
> smaller diameter than the R mount.
>
> Doug Herr
> Birdman of Sacramento
> http://www.wildlightphoto.com