CANON Canon EF lens is transferred to M4 / 3 Panasonic Olympus Micro single bayonet body for use • High-precision perfect transfer, aluminum-magnesium alloy ring body, fine copper bayonet will not wear the lens, the workmanship is very exquisite, tightly and smoothly combined with the bayonet, receive focus, play the lens macro function, and can be infinitely close focal. • The lens can be matched with this adapter ring, the camera must be adjusted to manual mode to use with this adapter ring. • Support all focus ranges to infinity. • [Precautions] When using the adapter ring for the first time, please say that the "No lens release shutter" option in the body menu is turned on, otherwise the lens will not be recognized and the shutter will not be used to take pictures