【Compatibility:】For Canon EF/ EF-S Mount lens to fits on Sony E Mount mirrorless Cameras. 【Accessories:】Equipped with a drop-in variable neutral density filter (ND3-ND500, equals to 1.5 to 9 stops), a UV-filter and a Drop-in Filter Storage Box. 【Additional Function: 】Support PDAF and CDAF Modes 【AF support and Aperture control:】 Support auto focus function ;the built-in electronic contact allows you to control the aperture of the lens directly through the camera. 【EXIF Transmission: 】The design of gold plated PIN brings excellent signal transmission.