I had a Nikon D800E and and a Nex-7. I have many manual focus lenses. I sent the Nikon back because it was not acceptable to me to manually focus the lenses. I think Nikon is a great camera company who makes great lenses but the the engineers who designed the D800E must not have ever manually focus on a Sony Nex-7 or they would never had done that. By the way, in every other way the Nikon was the best camera I ever owned but I need to manually focus sometimes. If you are not going to manually focus then it is a no brainer....keep the Nikon.