Compatibility: EF-EOS M mount adapter compatible with Canon EF and EF-S mount lenses and EOS-M (EF-M mount) mirrorless cameras, such as EOS M M2 M3 M5 M6 M10 M50 M100. AF Function and Aperture Control: Fast autofocus (AF) speed; built-in aperture motor and an electronic contact; the actual aperture of the lens can be controlled directly from the camera side; shutter, aperture, and ISO data are displayed on the camera screen. Built-in IS (Image Stabilizer): Built-in image stabilizer, making focusing more accurate and helping you take clearer photos; set your camera's APS-C size capture to 'off' if you get your lenses to full-frame functionality. EXIF Signal Transmission: Use gold-plated needle/PIN to transmit the signal, which dramatically improves its transmission performance; metallic electronic contact ensures high-quality signal transmission. Trendy Design: Designed with 1/4" screws at the bottom, which can be mounted on a tripod or other mounts; detachable bracket; very convenient to use this lens control ring.