As some may know I might be coming back to the Sony boat with the A7RII. I was initially thinking about getting either a Canon 6D or a MKIII with 3 basic primes (28mm, 50mm, 100mm) for more pro work and just use the A7RII with these lenses until I´m 100% sure that Sony really checked all the marks for me. Then I started thinking about getting the A7II instead of the Canon before getting the A7RII, but I´m very hesitant of committing to the FE system again though. These last few moth I´ve been using a Nikon D600 and a D750, both with excellent AF and industry leading high iso. With these cameras I was able to use iso 8000 and in some instances iso 12800...On the A7 I struggled to be able to use iso 6400. Another thing that made me move away from the A7 was the unreliable AF. I´ve missed a lot of shots with both native FE glass and with the LEA4. Can anyone comment on AF reliability and high iso performance on the A7II? I thought about the A7S too, but this would only address my high iso concern.