More details on the Zoom HS-1
Overview: The Zoom HS-1 is a hot shoe mount adapter designed for use with the Zoom Handy Recorders, including the H4N, H5, and H6. The adapter allows you to mount the recorder on the hot shoe of a DSLR.
Design: The HS-1 has a 1/4" stud on the top that screws into the 1/4" tripod mount thread on the bottom of the recorder. The bottom of the HS-1 has a standard-sized mounting foot that fits onto any DSLR with a hot shoe. Both the tripod stud and hot shoe mounting foot have dials that can be used to tighten the adapter to the recorder and camera.