First there were the interchangable lenses. Cheap for a reason - but sometimes you were lucky: in the seventies I had a Soligor 350, shaky thing, but the 400mm SSC Canon I could afford later was 10 times more expensive - and really hardly better!
I tested this time the oldest I have, the Sandmar 100mm US Zone Germany for Argus. Changing lenses is an Argus thing, takes minutes, but the Enna does what you expect it to do, and looks fine on the art-deco camera.