NAME:Viltrox EF-NEX IV Canon EF Lens to Sony NEX AF Mount Adapter
PRICE: $1,388.00

Viltrox EF-NEX IV Auto Focus Mount is the fifth generation electronic adapter produced by Viltrox for Canon EF and EF-S lenses to be used on Sony A9, A7, A6XXX and NEX series cameras. Two main features are added on EF-NEX IV: - Integrated USB port for adapter firmware update. Connect adapter to computer with USB cable and execute latest file download from official website. Fast and Easy! - Manual switch to change between CDAF and PDAF mode. For camera to recognize new AF mode, adapter is required be unmounted from camera and attach again.

Many people will ask why switch between CDAF and PDAF? When lens use with CDAF mode with good contrast, you can get focus point across the frame. However, for older lens model, focus speed will be slow or not even focus. PDAF is the fastest way to focus for both AF-S and AF-C. The focus area is limited depends on camera model.