This is a Rayqual mount adapter for sale. I found it while organizing the storage. It allows you to attach Nikon F lenses to a Micro Four Thirds body. It's the type without a ring. The aperture cannot be adjusted with lenses without an aperture ring (E-type or G-type). It will likely be at the maximum aperture. You should be able to adjust the aperture with D-type lenses, which have an aperture ring. I am not responsible for compatibility. There are some minor scratches on the front and rear metal parts, and on the body itself. Please consider it to be in good condition, as it is a personal item. As a bonus, I will include front and rear lens caps and a body cap, although they are not original accessories. Retail price is 16,380 yen. It is made in Japan by the Rayqual brand. Please check the following website for details. RAYQUAL Adapter Features Micro4/3 Adapter (rayqual.com) Please refrain from purchasing if you are concerned about the appearance. Please judge the condition based on the photos. #Nikon