This lens mount adapter from Commlite allows a Canon EF or EF-S-mount lens to be used on a Canon 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 EF or EF-S-mount lens and Canon RF-mount camera.