I have 2 D800s and unfortunately they only work in studio....

Leonard Shepherd wrote:

I cannot explain why your results are different to that of most users feedback.

I find no difference using outer AF points, and a significant D800 improvement using central AF points. My understanding is most using both cameras find the D800 is superior.

--
Leonard Shepherd
Many problems turn out to be a lack of intimate knowledge of complex modern camera equipment.