Features 1、Seamless Compatibility: Perfectly compatible with EF lenses and EOSM cameras, including for M2, M3, M5, M6, M6 Mark II, M10, M50, M50 Mark II, M100, and M200. Not compatible for EF M and for CN E lenses. 2、Autofocus Function and Aperture Control: The EF to EOSM lens adapter has built in electronic contacts that allow for control of the lens's aperture. This feature supports auto exposure, autofocus, auto diaphragm, and auto aperture functions for EF lenses on for EOSM cameras. 3、IS Stabilization Function: Equipped with IS stabilization for improved focus accuracy and clarity, assisting you in capturing wonderful photos. For full frame functionality, set the camera's APS C size catching function to "off". 4、Expand for EOSM System: The lens mount adapter allows you to full utilize the entire range of EF lenses, enabling you to use your existing lenses and explore new options for capturing your desired photos. 5、Easy Installation: Precise markings (red dot and white cube) on the adapter align perfectly with the camera's mount and lens port, emitting a click sound when properly attached. The adapter ring is detachable, portable, and compact, without adding bulk to your camera setup. Specification Item Type: Lens Adapter Material: Aluminum Alloy Compatible Lens: for EF Mount Lens Compatible Camera: for EOSM Micro SLR Camera Front Mount: Compatible for EF Mount Back Mount: Compatible for EOSM Mount Tripod Slot: GU 1/4x4 Maximum Diameter: Approx. 66.6mm/2.62in Length: Approx. 26mm/1.02in Package List 1 x Lens Adapter 1 x Specification