【Compatible Lens】: EF-NEX IV electronic mount adapter is designed to allow Canon EOS EF/EF-S mount series lens to compatibly work with Sony E-mount cameras, expanding the compatibility and combination of related lens and camera. 【Compatible Camera】: this lens converter is compatible with Sony E-mount Camera, including A7, A7 markII, A7 markIII, A7R, A7R2, A7R3, A7S, A7S2, A9, NEX7, A5100, A6000, A6300, A6500, etc. 【AF Function & Aperture Control】: fast and precise AF(auto-focusing); support automatic aperture adjustment; shutter, aperture, ISO and other parameters are well displayed and adjusted at camera side. 【IS & EXIF Signal Transmission】: support lens IS(Image Stabilizer) function; use inbuilt gold-plated pure copper PINs to transmit signal, greatly enhancing its conductivity and transmission performance. 【Two Auto-focus Modes (PDAF & CDAF)】: support PDAF(Phase Detection Auto Focus) and CDAF(Contrast Detection Auto Focus); switch fast between PDAF mode and CDAF mode; auto-focus function is unavailable when shooting video. 【More Features】: light in weight(Approx. 174g/6.14oz); special surface electroplated treatment, very smooth and durable; designed with micro USB port for firmware upgrade and fixing bugs; thread inner surface design, effectively eliminating light reflection.