Nikon's 2012 FX trio of D600, D800 and D4 obviously were all designed and manufactured at the same time with the same innards, and merely announced in descending cost order at different times to try to hide the simple fact that they're the same camera inside.
So there we have it all blown-open: all of Nikon's current FX cameras are essentially the same thing, put in different bodies. If all you want are fantastic pictures, the D600 does the same thing as the D4 and D800 and D800E, for less money, with less weight and with less aggravation.
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