PICK UP ONLY Viltrox EF-GFX Pro mount adapter for using Canon lenses on Fujifilm GF Lens Converter Ring for Canon EF/EF-S Series Lens to Fujifilm Medium Format Camera G-Mount GFX 50SII GFX100 GFX100S GFX 50S 50R - Compatibility: Allows Canon EF/EF-S series lenses to be mounted on Fujifilm G-mount medium format cameras. - Electronics: Features electronic contacts that support autofocus and EXIF data transmission between the lens and camera. - Pro Version Features: The Pro model includes a built-in manual aperture ring and supports stabilization functions. - Firmware: Includes a USB port for firmware upgrades.