The Metabones Canon EF to E-mount T V (Black Matte) is a practical accessory that gives you the liberty to attach a Canon EF or EF-S lens to a Sony E-Mount camera body. It works with a wide range of APS-C and full-frame format cameras. The adapter’s electronic contacts transmit data between the camera and lens flawlessly. This function is essential for enabling autofocus, image stabilization, auto exposure, aperture control, and saving of Exif information. The LED light indicates the mode the adapter is currently on. The internal felt flocking comes in handy for preventing reflections. Since camera body itself powers the adapter, no separate batteries are required. Additionally, this adapter features a weatherproof rubber mount gasket.