Purchased new from the SHOTEN official website last month. Used a few times, mounted on a sigmafp. Selling because I'm changing mounts. Changes from the previous model: * Improved helicoid precision for smoother operation * Extension increased from 5mm to 6mm * Focus lever included * Infinite focus click mechanism included Reduced Minimum Focusing Distance Equipped with a "6mm extension" helicoid that significantly reduces the minimum focusing distance. Allows for close-up shooting without worrying about the relatively long minimum focusing distance of M-mount lenses. The helicoid, processed and adjusted with high precision, operates smoothly with minimal play, providing a comfortable feel. Focus Lever and Infinite Focus Click Mechanism Equipped with a focus lever for comfortable extension operation. Also, a click feel is generated at the infinite focus position of the helicoid, preventing unintended helicoid extension during transport or operation. Specifications Model Number Black/LM-LSL M II (B) Mount conversion, helicoid (extension: 6mm), infinite focus click mechanism, focus lever included Compatible Lens Mount Leica M Compatible Camera Mount L (Leica, Panasonic, Sigma) Material Brass x Aluminum Weight Approx. 90g Focusing Workshop