I found problem of oil spots or dust issue at my D800 make Oct. 2012, only 1100 cut.
I took the dust or oil spots photos at my camera and adjust more clearly show it. used lightroom.
this is detail 100% crop
I will check in NIKON as center in Korea tomorrow. If i have something more news from AS center, i`ll more report.
However, nobody expriance about this ?