03-12-2013, 06:38 PM
It's really a shame we're plagued with this problem,couplets being the major problem I suppose and any sort of zoom is risky.My experiences certainly been painful. Just as a time scale reference,I bought S/H from ebay last week an old "revuenon" 28mm 2.8,all metal,all controls silky, "perfectly centered" 20 odd years old! Good manual lens actually. Maybe the designs have improved,but they don't make them like they used to!