Soviet Vintage Lens: Jupiter-8 NB 50mm 1969 Edition. Aperture range: f2 - f22. Focusing range: from 0.9 m to infinity. Angular field of view: 45º. Mount: Kyiv (Contax) (external bayonet only). This is important to know when purchasing. All lenses in our store have been used before. The lenses may have slight signs of cosmetic wear (natural signs of use), some marks from cleaning, but they are completely intact and function perfectly. Look at the photos and ask us questions if necessary. All lenses have been serviced and tested. We remove dust and dirt from the optical element, remove oil from the aperture blades and change the lubricant inside the lens, after maintenance the glass becomes clean and transparent, and the rings rotate smoothly and accurately. The lens will serve you for many years and will decorate your collection of vintage lenses. We try to accurately and correctly describe your product.