The Sony LA-EA1 adapter makes it possible to use lenses with A-mount on the NEX camera. Although I do not like that policy having to buy an adapter for anything, you can use with this here all lenses with A-mount on the NEX. Autofocus and Blendeneistellung also work with most lenses (I use a Sony 50 mm 1.8). The adapter can be directly screwed onto a Statif to the camera from any heavy lenses to relieve. A small disadvantage is that it makes the nice little camera back a bit bigger - the adapter is about 3 cm long.