Adaptador de bloqueo XPimage M645-GFX 0,71x para lente Mamiya 645 a cámara Fuji GFX 50
The 0.71x optic adapter gets rid of crop factor, and increases the aperture. 0.71x optic. Lens: Mamiya 645 Mount Lens. It's a locking version adapter. which will make the connect of lens / adapter very firmly.