Well Marcel suggested the 105/2.5 way back there in post # whatever... I agree 100%...look at my 52 thread and see the 105 with DX (and I am fixing to own the 85/1.8 too...old lens...Ai...)
I just bought a 105/2.5 Ai lens with a damaged bent up front rim...still works great...glass in good enough shape...smooth focus...buttery pictures...works on any Nikon DSLR there is...for $75 bucks free shipping...
Legendary Legacy Lenses done dirt cheap...they were 1200 retail new...best bang for the buck anywhere...