I have yet to have a problem with any classic Voightlander camera, and I have a few, from a Bessa 66 from 1938, 3 vito folders, the 1,with an uncoated skoper lens, and a 2 and 2A, plus a Vito B and a vitomatic IIa, all of which work perfectly and all get used, from my experiance their QC was up to scratch, you must have been very unlucky,