The Leica Summicron 50mm f2 collapsible is a small, convenient lens for Leica M mount cameras. It's easy to carry along when it's collapsed, and it extends easily for shooting. This one is in very good cosmetic condition, with light wear from use and handling, including some small cosmetic scratches and brightmarking. No dents or dings, smooth focusing, good diaphragm. Glass has very, very light hazing- nothing that will affect imaging.