>Hard to see much of a difference? > >I'm a D700 user and find them equal up to 1600 which is as far >as I normally will comfortably take pics? > >dc > This is another comparison that does not tell the whole story. It is just so easy to magnify on the screen. If what you see is equal to you then D600 is 2x better than D700 because they are cropped at 100% view instead of equal view. In other words noise from D600 is 2x smaller than D700. So if you print them both at some equal size where you just starting to see noise from D700 then you will not see any noise from D600. It is there but because it is so small it would not be visible.