I have a Fed 5B that works perfectly. The lens quality is exceptional, (Industar 61) sharp as a tack, good contrast and bokeh. The camera and lens, however, feel like all the machining was done by Leningrad Locomotive Works. It's a fun camera with results that look like they didn't come from a "fun" camera. I had a Fed 2 with a collapsable lens. The camera seemed a little better built, but the lens (uncoated) was a POS.