Nikon officially acknowledges D600's dust issues
Perhaps the digital camera manufacturers need to spend some time on the Dr. Phil show. They love being in denial for the longest time ever! Nikon has finally confessed that the Nikon D600 is special, special in that it has dust issues. Nikon suggests that if your attempts to remove the dust using "conventional" techniques do not work, then to contact the Nikon support center for further evaluation.
For opinions on the camera, check the list of completed Nikon D600 reviews.