Camkitmate Camera Lens Adapter Ring For Leica M L/M Mount Lens To Sony E NEX Helicoid Macro Focusing Tube Adaptor By using this adapter, you can use Leica M L/M mount lenses on Sony NEX E mount Adapter. The newest design product, lens adapter combine helicoid macro tube. Support both MACRO SHOOTING with helicoid adjust and INFINITY FOCUSING. The adapter has no lens element so it does not effect optical performance. Automatic diaphragm, auto-focusing, or any other functions will not operate correctly while using this adapter.