This vintage Petri 55mm f/1.8 C.C Auto manual focus prime standard lens is for use with Petri mount cameras and adapters. There are a couple of scuffs and some light discoloration on the barrel's exterior. Inside there is a light haze and there are a few marks in the front element's coating. Its focus and aperture adjustments are both smooth and it is free of any fungus or separation to its elements.