Sony have really been pushing at the envelope of camera design in the last few years, with DSLR’s with EVF’s, the Sony NEX range with the great NEX-7 and NEX-6 and now the new A7 and A7-R.
One thing I have noticed about these cameras is that I see a lot of pro photographers who have them, using third party glass. While the good glass is slowly coming is been manufacturers like Leica who have made great sales from these cameras.
While shooting wider then 24mm can be troublesome using Leica glass on the Sony as the cameras lack the special micro lens that Leica have developed for the Leica M range, it still gives great results.
While releasing good cameras is one thing its the system that can make or break a camera.