• Compatible Mounting Lenses: Canon FD Mount Lenses; Compatible Mounting Cameras: Micro 4/3 Mount Camera Body • MF & Infinite: The ring does not have electronic contacts and is manual focus. The focal length can be achieved even at infinity. (Please turn off the camera when you install the adapter. Turn on "Release without lens" ) • Unique Design & Safety: The square appearance matches the style of the camera body. The lens and camera are straight line, so it is not easy to slip when placed and very safe. Product Features 1 • Red-dot notation: The red dot and lens mounting indicators can be attached together. Easy to remove by pressing the button on the adapter • Durability: The aluminum alloy and brass construction prevents wear of the lens and gives it a luxurious surface. It can be tightened to provide better protection for your camera and lens