Last night a friend of mine visited me. In his hand he was holding an A7 with 28-70.
The camera is really very small. Next to Nex6 not much difference except the viewfinder that is sitting on the top.
Do I liked the A7. No not at all. The reasons are.
-Very minor difference in high ISO
-Ergonomics I find Nex6 much better, the Custom C2 very difficult to press. You get more custom but very difficult to use.If you really thing about ergonomics the a7 is not the camera. Buy better an a77.
-Autofocus speed the same
-No build in flash
-You pay 3 times the price of a Nex6 to get what?
-You buy a Nex for compact and you buy SLR/SLT for functionality
I am really not impressed by the a7. maybe I am the only one who say this but this is how I feel the camera in my hands.