This vintage Minolta Rokkor-PF 55mm f/1.8 manual focus prime lens is for use with SR-mount (MD and MC class) cameras and adapters. There are scuff marks, scratches, and finish loss on the barrel's exterior. Its focus is stiff, but its aperture adjustment is smooth. Its glass is excellent and free of any fungus, haze, or separation to its elements. There is no oil on its aperture blades.