I have received three D600 Cameras. I returned the first two and now have the third. The Serial numbers for cameras are, 1. 3063860 2. 3069290 3. 3061322 It appears that I am receiving previously returned cameras because the serial numbers are not sequential as might be expected. Camera #3 has an earlier serial number than the first two that were received almost three months earlier. I was hoping to get later serial numbers to dodge the dust/oil problem, if possible. The first camera was too dusty, the second had some malfunctioning electronics, and I'll learn if the third is ok later this week. The company is reputable and very robust in the photography community.
Am I getting used cameras, possibly? And, could it be that I am getting someone else's returned problem? Your insight would be helpful. Camera #3 might be the best of the lot, even though the serial number is earlier than even the first camera. Your thoughts please.