Lens Mount Adapter EF-EOS M2 Auto-Focus 0.71x Speed-Booster Control Ring for Canon EF Lens to Canon EOS-M (EF-M Mount) Mirrorless Cameras M M2 M3 M5 M6 M10 M50 M100

Compatibility: EF-EOS M2 lens converter allow Canon EF mount series lenses to work with Canon EF-M mirrorless cameras M M2 M3 M5 M6 M10 M50 M100 0.71x Focal Reducer : 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 Strong Functions: auto focusing function, increasing the lens 1 f-stop and the amount of light into the virtual background, better highlight the theme Wonderful Performance: use PIN gold needle to transmit signal, greatly enhancing its transmission performance; optical glasses built in 4 groups / 4 glasses; enjoy EXIF signal transmission, AF(auto-focus) and adjustable aperture, etc. Equipped with USB interface, convenient for software upgrade; achieve perfect new functions of the lens mount adapter and fix bugs according to follow-up upgrades