Main: Lens Jupiter-8 2/50mm. "RED P" glass coating. Serial number 5528783. Made in USSR in 1955. Arsenal factory. Contax RF mount. You buy what you see in the pictures. Item info: Soviet Sonnar. Contax RF mount - this lens has no helicoid by itself! Condition: Please, check all pictures as they are part of the description!  Used.  Good working condition. Glass without haze or fungus. One thin scratch on the rear lens - it has no major effect on the image. Minor micro particles of dust inside, which is common for vintage optic.  Aperture action is totally OK, but not perfectly smooth. Aperture blades are oil free and work correct. Lens was tested with digital camera Sony A7 via adapter. Image quality is nice. You can see 2 test photos made with this lens at F2.8. Parcel includes: Lens, front cap. You buy what you see in the pictures. Delivery: International shipping with tracking number. Shipping within 24 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.