1、Compatible Models: The lens converter makes the for Leica L39 M39 lens compatible with the for NEX series camera system, Including for NEX‑C3 NEX‑5C A7 A7S A7SII A7RII A7III A7RIII A7SIII A9 A6500 A6300 A6000 A5100 A5000 A3500 and so on. 2、Exquisite Craftsmanship: The lens mount adapter is constructed using high strength aluminum alloy material and undergoes an anodized oxidation process. This ensures not only exquisite craftsmanship but also enhanced durability and wear resistance. 3、Precise Mounting: The lens mount adapter is meticulously designed to seamlessly fit the camera and lens mount, creating a tight and secure connection. Its easy and smooth installation and removal process provide added convenience for users. 4、Rich Functionality: This adapter offers a wide range of manual control options, including manual focus, manual exposure, aperture priority, and features an anti reflective coating. It also allows for infinity focus, enabling photographers to have complete control over their shooting experience. 5、Versatile Usage: Catering to the needs of professional photography enthusiasts, this lens mount adapter is highly versatile and provides a professional and practical solution for camera lens conversion. Item Type: Lens Adapter Material: Aluminum Alloy Compatible Lens: for Leica L39 M39 Lens Compatible Camera: for NEX Series Cameras Compatibility: for NEX-C3, NEX-5C, A7, A7S, A7SII, A7RII, A7III, A7RIII, A7SIII, A9, A6500, A6300, A6000, A5100, A5000, A3500, and more 1 x Lens Adapter Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.