This authentic lens adapter is designed to securely attach your ARRI Lmb 5/LMB 15/LMB 25 lens to your camera. It is compatible with all matte boxes and is made from high-quality materials to ensure optimal performance. Whether you're a professional photographer or a hobbyist, this lens adapter is a must-have accessory for your camera kit. It is unbranded/generic and is perfect for those looking for a replacement or an additional lens adapter.