Amazing review of the Cambo Actus on the Nikon D810 in two parts, at Nikon Rumors.
Part 1
Part 2
I of course dropped the D800, whose live view was shtye compared to a Sony A7r. Below is my review of the Novoflex BALPRO T/S, in three parts, at Fuji Rumors
Part 1
Part 2
Part 3