I have used 3 Nikon cameras up until now - am using two at the moment. Never did i experience "dust", "particles" or whatever you want to call it, to this extent. People who say that it happens in other cameras are just trying to comfort themselves - it does not happen to this extent in other cameras. It is all well and good to say, "just clean it every so often". But that is not the answer. If you find metal shavings in your engine oil when you change it, are you jsut going to keep changing the engine oil, dismissing the real problem? The solution is to lodge your compalint with Nikon instead of going on about it here. With further articles coming out, such as the one that Dave posted, it just may be that the shutter leaf mechanism is slowly being ground down. If that is the case, yeah, sure, the "particles" may stop appearing because the shutter leaf mechanism will be ground down to the point that the tolerance between it and the other piece of the camera, are no longer as tight. Again, i never had this issue with my D3000, D5100 or D80. There is a small fault with the D600, just admit it Nikon and everyone else. It's not the end of the world.
One thing to remember is that sensors are electrically charged surfaces. We all know what static can cause and I suspect the more definition a sensor has, the more static electricity it will be charged with. All sensors attract dust and eventually, they all show up.
I think that sensor cleaning should be learned by all DSLR users and then problem solved. Post processing of these little dust bunnies is also not too hard to do.
And, if we look for nit picking more than we look at the overall picture, we might spend too much time fussing and not enough enjoying photography.
Just my 2 canadian cents.
Marcel - you do make a good point, however, the "dust" turns out to be shutter material that is being scrapped off with every actuation. I'm beginning to wonder if this isn't what happened to my D800 that ultimately caused the shutters to fail. Toward the end there was tons of "junk" appearing on my sensor in the hours leading up to the failure. That said, I suspect many of these "dusty" D600 will experience catastrophic shutter failure as their actuation numbers go up.
Dave, Did you miss type your first sentence, or has the material been shown to not be dust?
No, not mistyping. The so-called "dust" appears to be due to the shutter box being scraped with each shutter release. See HERE