Main: Lens Pentacon auto 1.8/50mm. Serial number 5864982. M42 screw mount. You buy what you see in the pictures. Condition:  Please, check all pictures as they are part of the description! Used. Good condition. All work properly. Glass is clean without cleaning marks, scratches, fungus or haze. Minor micro particles of dust inside inside, which is common for vintage optic and has no visible effect on the image. Focusing action ring is smooth. Aperture blades are snappy and work correct. There is few minor oil traces on the aperture blades. Tested with digital camera Sony A7 - all work properly, image is nice. 2 test photos made at F2.8 are in the description. Parcel includes: Lens, front and rear caps. You buy what you see in the pictures Delivery: International shipping via Air Mail with tracking number. Shipping within 48 hours (except Sunday) after Payment Confirmation Receipt. *Dear buyers. I am a seller from Ukraine. In spite of a Russia invasion in Ukraine, in my region situation is stable.  Ukrainian mail work and accept international shipping.