This adapter converts Leica L39 mount lenses (with 35/135mm bright frames) to Leica M mount. Made by the highly precise Japanese manufacturer Rayqual. It has a notch at the bottom, allowing it to be used with lenses that have an infinity lock, such as the Elmar. It is a beautiful item with little signs of use. Manufacturer: Rayqual Model Number: LM35-135L [Shipping] Shipped via Click Post. *For "convenience store payment" or "bank transfer," please purchase only if you can pay within 24 hours.