[Leica] Help adapting a Leica lens 90mm SM Summicron Leica M adapted

[Jim Nichols]

Mark,

My experience with SM to M adapters is that they seize up very tight 
without any cement.  As Don said, check for small screws. The solvent 
may be necessary, but use it very warily.  I find that one of the rough 
rubber or plastic jar lid grippers works nicely to provide friction, 
when placed on a wooden surface.

Jim Nichols
Tullahoma, TN USA

On 10/20/2018 1:16 AM, Mark Kronquist via LUG wrote:
> I just acquired a nice, early Summicron 90mm (currently M) that was factory converted to M from SM by essentially glueing/cementing an SM to M adapter to the lens.
>
> This lens is and will always be a sort of M lens as it has the rd dot and my intent is not to deceive but, rather, to use the lovely lens on my Barnack (scrrewmount) cameras as well by carefully removing the M to SM Adapter (again glued on)
>
> Has anyone done this and, if so how? Ideally, I would like to preserve the SM to M adapter as well but…thanks Mark in Oregon
>
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