With the Viltrox EF-M2 II Autofocus Adapter 0.71x, you can mount a Canon lens with EF mount to your mirrorless camera with Micro Four Thirds mount. With this adapter, the autofocus of your camera is retained. Thanks to the factor of 0.71x, the adapter reduces the focal length of your lens. That way, a 50mm lens becomes a 35mm lens, for example, and you have a larger image angle. In addition, the aperture increases by 1 stop, which makes the lens brighter. You can take sharper photos in dark conditions. On top of the adapter is a setting button to easily adjust the aperture. You can place this ring on a tripod with the included tripod adapter.