So I have to admit that I've been giving an A7 cameras more and more thought. I still have my gripes with the lack of good affordable native lenses and some of Sony's wonky software decisions (like auto-ISO limitations), but as I mainly use legacy glass anyway, it's still compelling me.
I love my 6D, but I simply don't use it now that I have my Fuji entirely because of the size. I can bring my X-E1 and 3-4 lenses and it'll still weigh less than my 6D and one or two lenses and it's a whole lot less cumbersome and eye-catching for candid work (which is what I mostly enjoy).
My only fears for letting go of the 6D are that I'll miss the OVF for low light shooting, the awesome high ISO capability and it's ergonomics and lens potential (though I can still use those lenses with the Sony, the AF will be pretty much worthless).
I started by eyeing the A7, but then it seemed most reviews said that the A7r was better in pretty much every single way... then I mad the mistake of looking at the "s" and apparently it goes even further by making the EVF far more useful in low light (one of my biggest concerns) and by adding a silent shutter (my biggest concern, to me the A7r's shutter sounds absurdly loud in videos, but I've yet to hear it in person).
So I was hoping some owners could chime in. Is the A7r useful at ISO6400+? I have numerous shots at ISO12800 and up on my 6D which I'd have no issues printing, I'm afraid of losing that capability (I'm sure the A7s would give me the same ability). Is the shutter as loud as it seems? Will everyone in the room turn their head when it goes off? And is the A7s's normal shutter any quieter?
I know I had other concerns and questions... but that's all that's coming to mind right now. The reason all this started cropping up is that I have no quarrels buying used gear and right now the 6D and A7r are nearly the same price in the used market, so I could make almost a direct trade... the A7s on the other hand would cost me a good chunk of change so I want to be sure before I go any further... also, if any A7 users live in the DC area I'd love to meet up so I can see one and maybe shoot with it a bit in person! 