If anyone can help. I got a Pentax MV-1 recently and everthing was fine until the wind on lever became very stiff to move, no warning, one minute fine then stiff.Everything else still works fine, the shutter is ok, it cocks and fires. If anyone has any ideas as to what the problem may be as I don't want to start taking things to bits without knowing the right direction to go in.Thanks.KAR.