This AF Mount Adapter with Variable ND from Commlite allows a Canon EF/EF-S-mount lens to be used on a Canon EOS RF-mount camera. Electronic communication between an attached camera and lens is supported, enabling autofocus as well as auto exposure features. If an attached lens is capable of generating Exif metadata, this adapter is designed to transfer that information, so that it can be saved with image files generated by the combined Canon lens and camera. The adapter also has a convenient variable neutral density filter.