Good points but thousands of dollars locked into a system doesn't mean much when you can get an adapter and use lenses you currently own on an A7x body.
The a7rII was the first camera where using adapted lenses for professional work is actually reasonable, as AF with adapted lenses doesn't really work with the older bodies. The a7rII is only a month old. It's too early to say what the impact that camera will have on getting more people to transition over the mirrorless. That said, I would say that this forum is a very good sample of the overall prosumer (which again includes professionals and consumers) market. And anecdotally, we can tell by the number of people popping over the a7 section of the forum that a lot of people have been switching since the a7rII dropped. Seriously, there used to be about 5 of us posting regularly there. Nowadays I take a break from the forum for a couple of hours and find 40+ unread posts in the lounge thread.
The reason most pros still continue to use Canon (and Nikon) is because mirrorless cameras have still not even matched DSLRs in many areas let alone passed them. Look at the top Canon cameras. True weather sealing, dual image processors, dual memory card slots, true lossless RAW files, better ergonomics (Smaller means more cramped and isn't better for many) excellent battery life, fast burst rates etc...these are all things you cannot get in a Sony A7x body as of now but the A7rii is priced the same as a high end DSLR.
Most of those features are lacking in the 6D too....and you find it capable enough for your work right? I know plenty of wedding photographers using the 6D (including my old second shooter), and its perfectly capable. Same story for the a7 cameras.


