The VM-E Close Focus Adapter is a precision mount adapter made in Japan. - Model Name: VM-E Close Focus Adapter - Country of Manufacture: Japan Included accessories: Caps (front and rear), original box, instruction manual This mount adapter is for attaching Leica M-mount lenses to Sony E-mount cameras. It allows rangefinder lenses to be used for close-up photography. The build quality is precise, and I didn't feel any particular discomfort while using it.