The Helios-81 50 mm f/ 2 Lens. Specs. MTF Charts. User Reviews.
Soviet Camera Store - Multicoated HELIOS-81H 50mm f/2, Nikon mount full frame lens FREE SHIPPING NATIONWIDE! Pls order here - http://sovietcamerastore.com/product/mc-helios-81n-50mm-f2-sn-9407494/ This is THE HELIOS lens for NIKON users – allows infinity