The FUJIFILM G-mount GFX 50S medium format mirrorless camera, the H Mount Adapter G is a simple interface to expand the range of compatible lenses this adapter allows you to use this series of lenses with manual focus control and flash sync speeds up to 1/800 sec. as well as the ability to adjust the aperture setting via the GFX 50S's control dial when working in manual or aperture priority mode. Included with the adapter is a removable tripod foot to better facilitate working with larger, heavier lenses.