XPimage 0.71x Locking Lens Adapter for Mamiya 645 Lens to Fujifilm GFX Camera
The 0.71x optic adapter gets rid of crop factor, and increases the aperture. 0.71x optic. (the Mamiya lens in picture is not included). Lens: Mamiya 645 Mount Lens. It\\\\'s a locking version adapter.