VILTROX EF-EOS M2 mount adapter is designed to allow Canon EF-mount series lenses to be used on interchangeable-lens digital cameras that compatible with EF-M lens. Can increase the lens 1 f-stop, increasing the amount of light into the virtual background, can better highlight the theme; Focal length is multiplied by 0.71 based on the original (equivalent focal length =focal length x 0.71), which helps enlarge 1 level aperture. By adapter mounting it can achieve functions of EXIF signal transmission, AF(autofocus) and adjustable aperture, etc. Firmware upgrade is via the USB port. With auto focusing function; Signal transmission using PIN gold needle, greatly enhance its transmission performance; Ring at the bottom with 1/4 screws, which can easy installed on the tripod or other fixed bracket;