My 35mm and 50mm are super sharp. Of course, 50mm is a little bit soft at f1.8 with a lot of CA, but from f3.5 and up it is good.
All my lenses are checked few months a go when I had some focusing problems with my 35mm, and all passed at Nikon.
This 18-105 is sharp when subject is close, or when it is zoomed, but at 18mm it is soft, even at f8.
I focused on something 2 or 3 meters away, so at 18mm with f8 everything from 0.8 meters to the infinity must be in focus, which is not the case here.
It is not out of focus, it just looks weird,I do not know...