Petri 55mm F1.8 with Petri Mount.  The lens is used and shows average wear for its age. There is some pitting and corrosion on the barrel (see listing photos), but this should not affect performance.  Focus and aperture function correctly.  The glass is clean, but there is some internal dust and small marks on the lens.   Does not come with caps.  It is completely manual – aperture and focus.  Shipment to the United States only. Delivery tracking provided.