[Leica] Help with an old Summicron 90mm

[jbcollier at shaw.ca (John Collier)]

You may have a second version of the 90/2 LTM (screw mount) lens. In 
which case you just need a simple M mount adapter. Any of the adapters 
will work but the ISBOO/14098 is the one which will bring up the 90 mm 
framelines.

John Collier

On May 13, 2004, at 7:43 PM, Juan Gea-Banacloche wrote:

> owe to this list: thanks).
>
> I recently got what I thought was a nice old 90mm Summicron for the M 
> [I guess a SEOOM (or maybe a SEOOF-M???), s/n 1742368]. When I opened 
> the box, I was disappointed to see it cannot be mounted on the M3-- it 
> has a Visoflex mount. However, the drawing of the lens on the side of 
> the box shows an extra ring with the M bayonet. That this ring was 
> part of the original lens is suggested by the size of the box and the 
> marks on the velvet lining inside the box.
>
> I would like to believe the lens could be used either on the Visoflex 
> or mounted directly on the M3 by removing or adding this hypothetical 
> ring. Does anyone know if this is the case or not?