Fotodiox Pro Lens Mount Adapter - Leica M Rangefinder Lens to Sony Alpha E-Mount Mirrorless Camera Body with Macro Focusing Helicoid Premium Grade Fotodiox Adapter with Smooth Surface for Effortless Mount Infinity Focus Allowed Anodized Aluminum Construction Built-in Macro Focusing Helicoid allows Macro with Any Leica M Lens 24 Month Manufacturer Warranty