Because of this, it's possible to adapt Sony and Minolta Alpha mount lenses to the NEX system. The LA-EA2 Alpha NEX Camera Mount Adapter ($399.99 direct) not only adapts the lenses, ...

Sony also markets an LA-EA2 adapter (399.99 direct), which adds a dedicated phase detection autofocus system for faster focus. The LA-EA1 is 2.6 inches in diameter and is 1.1 inches deep.