M42x1 adaptor ring for four thirds (e.g. Olympus)

This adaptor fits directly into the four thirds body and enables you to connect objectives with M42x1 thread.

The four thirds bayonet is wider than M42, so the adapter can be mounted completely into the camera body. The optical length is 0mm (see picture below)!

Applications:

-- Adaptation of M42 objectives to the four thirds cameras - the focus position is not affected.