Hello! Bought a mint C33 and 180 lens separately. The film advance seems to work fine without the lens on but when I install the lens the lever will only turn slightly but does advance the film with repeated back and forth motion. I downloaded a manual for the camera but instructions are somewhat vague regarding lens installation. I hope there is a simple solution and I am not doing something correctly rather than a problem with the camera. Maybe someone else has encountered this and can advise me. I can only hope. Many thanks in advance. T