The aperture is super smooth and easy to change with minimal effort. The focus has been lubricated and is super smooth, fantastic for fine focusing. The lens focuses past infinity ever so slightly as one of the screws is worn. The lens comes with a genuine Leica front cap. The item "Leica Leitz 50mm (5cm) f3.5 Red Scale Elmar 1956 L39 Lens Only Coated" is in sale since Friday, April 24, 2020.This item is in the category "Cameras & Photography\Lenses & Filters\Lenses". The seller is "baguleypictures" and is located in Stockton-on-tees, North Yorkshire. This item can be shipped to United Kingdom.