We've seen what the Sony A7r can do with the Konica 57mm f/1.2, now it's the NEX-7's turn. We actually took these shots almost two years ago. The 57mm on the NEX-7's APS-C sensor produces an equivalent field of view of 86mm. The lens having such a large aperture at f/1.2 is perfect for isolating your subjects.
The shots are most likely at f/2.0 instead of wide open. We had to stop down since it was producing better results that day. We love greens that are produced by the Sony sensor and the shots below show it well.
Can you tell a big difference between the 2 year old NEX-7 shots vs the recent A7r shots? Our biggest lesson is to process your files as soon as you can.