I have deliberately taken the 7 and not 7R, because I have already been enough in the Nikon D600 24MP and the better / faster focus is important.
The test photos with the kit lens 28-70 are all focal lengths, apertures and ISO values, the best so far all my cameras. I use to a specific structure to actually be able to make valid statements.
Since I have 2 quality old Canon FD lenses have, namely the 50mm 1.4 and 70-210mm 4, I use this lens with the very good Quenox adapter to the Sony Alpha 7. The fast lenses from Zeiss and Sony are currently still me not cheap enough.
But I'm delighted with the quality of the photos with the old Canon FD lenses.
The manual adjustment of the aperture I have loved even at the Fuji and additionally facilitate focus peaking and magnification function manual focus.
I'm going to upload sample images to.
I have very large hands, but get along well with the feel of the Alpha 7.
The configuration of the buttons can be nicely adapted to the personal approach.
The electronic viewfinder is perfect: fast, bright and with a very fine resolution.
However, one, two or more additional batteries and wall charger are required, because the battery life (200-300 photos) is not sufficient for an extensive photo session.
Currently I'm still looking for a suitable bag for camera and an interchangeable lens and will buy myself another 2 Cheap FD lenses (28mm 2.8 and a super telephoto with 500mm).
The camera is small enough to be taken more often, though not as small as my compact Sony RX100 II, but small enough ...
Addendum of 17/03/2014:
I'm still very excited about the Sony Alpha 7 and also the Canon FD 50mm 1.4.
I have many beautiful photos without flash made on a 40th birthday in low light it.
Especially the bokeh and manual focusing are fun!
BUT: I had slight pain in the right (camera) hand after some time.
This behavior occurs because at least small and ring fingers are not on the camera due to the small size of the camera.
I'm going to have so quickly the battery grip (though totally overpriced) have set.
PS I'm working now only with the jpg, since not compensate for my needs, the differences in quality and processing (Lightroom 5) the disadvantages of twice as large files
And that I need to move the white point times total, is more rare and unlikely ... (but also goes with jpg yet)
The professional will and should of course continue to work with RAW, but for the amateur the jpg (quality but to FINE) are sufficient as long as he has a correspondingly good working tool like Lightroom.