With the number of people making the shift from more traditional DSLRs to Sony mirrorless systems, adapters are often a way of life. I have a big stack of adapters myself for mounting lenses from half a dozen different systems onto four different types of camera body. It’s simply a question of versatility and providing more options. The big drawback with most adapters, though, is that there’s little-to-no communication between the camera and the lens.
One such combination that hasn’t had much love is Nikon lenses on Sony bodies. Mounting Canon lenses to Sony bodies and retaining full control over things like autofocus has become commonplace thanks to Metabones and Fotodiox’s similar adapter for Canon. Now, we can do the same with Nikon bodies with the new Fotodiox Fusion Smart AF Adapter for Nikon G mount AF-I/AF-S lens to Sony E-Mount.