The EF-M2 II Mount Adapter from Viltrox is use to fit Canon EF-mount lenses onto MicroFour Thirds mirrorless cameras. It is an intelligent adapter that features electronic gold-plated electronic contacts that enable it to maintain auto-exposure, autofocus, image stabilization and transfer Exif data while adjusting the aperture from the camera body. Aside from being an electronic adapter, it also includes a 0.71x-magnification focal reducer to help offset much of the crop factor of Micro Four Thirds cameras while also concentrating the light in order to increase the effective aperture by one stop. Finally, it is made of a durable metal material with an integrated 1/4"-20 tripod mount to help support heavier lenses.