VILTROX EF NEX IV Auto Focus Lens Mount Adapter Ring compatible with Canon S for Sony E Full Frame, Support PDAF and CDAF

Compatible with Sony A7 series full frame, Sony A9, A7, A6XXX and NEX series cameras, featuring funtions of Auto focus(PDAF&CDAF) 3.Usage of Focus Mode Switch ( PDAF&CDAF ) , Built-in metal electronic contact, & generation focus system ,VILTROX EF-NEX IV lens adapter can achieve 50% speed improvement so as to get faster and more accurate focus than ever before It can realize AF,adjustable aperture from camera body to lens's aperture Compatible for all the EF-lens .VILTROX EF-NEX IV High Speed Electric Lens Mount Adapter Ring AF Auto Focus for Canon EF/EF-S Lens for Sony A9 A7 A7R mk2 A6300 A6500 with USB CDAF PDAF Switch Integrated USB port for adapter firmware update. For adapter firmware update, connect adapter to computer with USB cable and execute latest file download from official website. Do not required to attached adapter on camera