Company Metabones, which is famous for its use of adapters for cameras and not "native" lenses from different manufacturers to upgrade the adapter mount Smart Adapter II EF - NEX. Major improvements Smart Adapter II was to support autofocus lenses Canon EF.
Unfortunately autofocus bude only work using modern lenses made since 2006. Management functions diaphragm image stabilization (if it is implemented in the lens) and correct EXIF-data record will work correctly if you use any lens mount for Canon EF.
[Adapter Metabones Smart Adapter II EF-NEX]
We note one drawback - the focus speed when shooting Sony NEX significantly lower than using cameras Canon. Adapter Smart Adapter II EF-NEX already available in the online store Metabones and retailers in Europe and the U.S. for $ 399.