leica M2 fan
Veteran
I received from Amedeo recently a Contax to LTM adapter that works so well with my Contax mount Carl Zeiss Sonnar 50/1.5 that I recently received. I did the ruler check at 1.5,2,2.8,4 and 5.6 and am well satisfied that this is going to work well for me. The Sonnar is a fantastic lens and in pristine shape. My question now is can I attach both the Contax mount lens to and LTM to M adapter on my M2 and will it work? TIA.
Yes. 
I have a Contax to LTM on order as well, to use with a CZO 50/1.5.
I have a Contax to LTM on order as well, to use with a CZO 50/1.5.
It should work fine. The early Amedeo adapters using a Kiev helical had thin threads. I would be careful with threading/unthreading from the camera and adapter.