YONGNUO Auto-focus Smart Mount Adapter EF-NEX for Canon EF to Sony NEX E Mount Camera -Compatible with Canon EF/EF-S lens EF-E adapter is able to adapt EF/EF-S lens to Sony E mount camera, which allows you to have more purchasing choices of lens. -Carries YONGNUO Intelligent Focus System It is realizable to focus from the nearest end to the farthest end as little as 2 seconds with EF-E adapter so that you can capture every moment of wonderful. -Intelligent Electronic Control Aperture EF-E adapter supports M/S/A/P camera mode and its realizable to adjust aperture automatically or manually in corresponding camera mode. -Supports TTL You can choose different camera modes and metering modes according to individual demand to get the correct exposure. -Carries Electronic Contact and Supports the Original Function of the Lens After adapted with the smart adapter EF-E mount, the Image Stabilizer (IS), TTL and Auto-Focus function of the lens work normally.