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

[Don Dory]

My understanding is that if it was factory then there will be a small grub
screw that will have to be removed.  It might not be factory so....
Acquire a sacrificial M rear lens cap to use for leverage.  Acquire some
solvent suitable for cutting lacquer and possibly some Kroil.  Kroil is a
very efficient penetrating oil.  Using a small dropper or ear bud apply
your solvent carefully around the outside edge and wait a fairly good
while.  Attempt to move the adapter with the rear cap.  If no movement then
repeat.  Patience is a definat virtue.



On Sat, Oct 20, 2018 at 2:16 AM Mark Kronquist via LUG <lug at leica-users.org>
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
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information

-- 
Don
don.dory at gmail.com