Voigtlander's SLR was the Compur-shuttered Bessamatic of the early 1960s... my dad bought one in 1963 and it was unreliable from Day One. This one works, but I'm not staking a year of vacation photos on it. Lenses are the 50/2.8 Skopar and a 135/4 Retina Tele Xenar on an Accura 2x teleconverter. The Retina lens does not fit the Bessamatic without a minor modification (which you can do), but the teleconverter fits both cameras and can be used as a lens adapter.
(In case you want to know how to adapt this lens to fit this camera directly, without the teleconverter: rick_oleson.tripod.com/index-150.html )