Here are two Sonnar 180mm F2.8 lenses for sale. One is in working order. Front glass has few spots on one side. It is very minor and does not affect the photograph. Otherwise the glass is clean and clear. The lens body slightly has backlash, some degree of play between two parts. Probably it needs to be retighten. By the way the lens is fully functional. No oil, scratches, haze or fungus. Aperture blades move smoothly. Another lens for repair or parts. Front glass and bayonet cup are missing. Glass is clean. Aperture blades do not move when you turn aperture ring.They are in open position. Probably the coupling mechanism needs to be fixed. Let me know if you have any questions, i will respond as soon as possible.