Sat 11-Feb-12 06:30 PM | edited Sat 11-Feb-12 06:32 PM by KnightPhoto
>From everything I've read the D800 should be very close to >the ISO performance of the D700. The D3s from reviews show >that it is about 1 stop better then the D700/D3 sensor. The D4 >is said to be about 1 stop better then the D3s. So if ISO >3200-12800 is what you want (for your expectations of higher >ISO's), then I would say save and get a used D3s (if you can >find one) or get a D4. >
I agree with Christopher - the real low light killers in the line up are D3S and hopefully D4.
Visually I have always felt the D3S (which I don't own) was a full stop and a half better than my D700 for the money shots at the high end (e.g. 6400 and 12,800). A stop and a half is a night and day difference when you need it. Even at ISO 3200 Marianne Oelund rated the D3S at 1.3 stops better than the D3.