I'll remember this day as the day I became a Nikon user.this. the D600 dominates the specs on everything except GPS, wifi and touchscreen, these are consumer gimics though and aren't something I require in a 2000 dollar camera. what I do require is awesome AF, AFMA, and a 100% viewfinder. This camera has none. If you haven't bought the D800, D600, or 5DIII yet, I don't see how this camera presents anything new or even a new price point.
I didn't like Canon'r recent price policy, but I said to myself "let's wait, maybe the 6D will be worth staying with Canon". Quite obviously it's not. We all know Canon is lagging behind in terms of sensor technology, but the problem with this camera is certainly not the sensor - or at least not it alone. It's ridiculous to put the 6D and the D600 at the same price point. Some time ago Canon had the lead on lenses, nowadays this is not so true anymore. The reasons to choose/stay with Canon - unless you're heavily invested in glass - are hard to find; and if you're heavily invested in glass you're not buying the 6D anyway, so who's this camera at this price point for?
If you're a beginner, moving up from a Rebel, this camera doesn't have a lot of sexy specs differentiating it from the 650D(especially AF!!!) and it's over 1000 dollars more. If you only have a kit lens or a couple of EF-S lenses I don't see why you'd choose this instead of switching to Nikon. If you do have a lot of Canon glass, and cant switch or don't want to, then you probably already have a 5DIII and aren't that interested anyways.
This camera absolutely baffles me.