This is an M42 mount lens adapter made by Kenko, compatible with Micro Four Thirds (m4/3 / m43 / MFT) cameras. Made in Japan with high precision, it allows for secure attachment. It can be used with various cameras that utilize the Micro Four Thirds mount, such as the Panasonic Lumix GH series, Olympus OM-D / PEN series, and Blackmagic Pocket Cinema Camera (BMPCC / BMPCC 4K). *Please check the condition of the product in the photos. There is some damage. Also, there may be minor scratches that are not visible in the photos, but there are no issues with use. Includes original box and instruction manual (*box has some damage). Please consider this item with the understanding that it is a used product.