This vintage Schneider-Kreuznach Xenon 50mm f/2 chrome lens is for use with Exakta mount cameras and adapters. There are a couple of scuffs and scratches on the barrel's exterior. There is a tiny scratch just off-center on the front element and an even smaller one dead center on the rear element. Its focus and aperture adjustments are both smooth and its glass is free of any fungus or separation to its elements.