D800 great at high ISO !

And I no not want to see skintones with greenish moulds like the shadow detail at the back of this bride shoulder. Of course you can work that out either in PP or bounce the window light with a reflector but it will be better when you can shoot with much less noise at ISO12800 where you can certainly see the shadow details of her shoulder and her hair will not get lost in the background. Just my preference of shooting the same scenario if there are noiseless ISO12800 dslr out there.