Techart lens adapter for E-Mount
Quick test with TechArt Nikon F to Sony E-mount adapter, I was quite suprised how fast it can focus even using the Sony A7ii instead of the A7rii. This adapter enables using also older Nikon manual lenses to be come good auto-focus lenses on Sony Mirrorless cameras. So if you been worried of switching from Nikon to Sony, you can now get a good adapter and still get proper auto focus.
For more info check: http://techartpro.com/