Up ……… PL
Teleconverter increases the focal length twice. It is mounted between the camera body and lens by M42 thread. In principle, was produced for use in the Praktica cameras Optisches Werk Weixdorf DDR. The converter is small and lightweight, provides control transfer of aperture. Unfortunately, it causes the aperture is two times smaller than is shown on the ring of the lens.
I have acquired by purchase in the DDR (many years ago it was such a country), in the early 80’s.
