If the artist is doing documentary people photography and the people aren't static, I certainly can. Slow autofocus is one thing, but autofocus that fails or focuses on the wrong thing or hunts interminably is a real downer. The RF patch might be a bit slower than some AF systems, but it's consistent and easy to master. I have no experience with the X100, but the reports of poor AF performance have kept me far away. That and the fact that I played with one in a store in Kyoto and I was seriously underwhelmed by both the viewfinder and the build.
Regardless. This new camera looks interesting indeed. The thing that would keep me from early adopting it is waiting to hear about the AF performance.
True, I agree that static and moving people are two different things, but, we're not talking about running people (well, mostly), and it's not like AF in X100 takes 10 seconds to focus on something. I've owned it for a while, did pretty much everything with it and focusing speed in real life is more than enough. It still takes me about 5x longer to compose and take care of all details, than it takes camera to focus.
There is point to AF being slow if you're shooting from hip and just snapping away, or you expect pro-dslr lever AF, but even this is highly questionable. I did couple of hip shots in London, very busy, walking one way, subject walking in the opposite direction and it still managed to focus in time.
I agree it may not work every time perfectly, but, after like a week or so, you learn where to actually place the patch to focus on particular dot, same as with any other camera, even with dSLRs. I wasted like 5 rolls of film doing very shallow DoF portraits with Canon EOS 1n and 50 1.2, until I learned that it focuses on bottom line of the AF point...
my comment was directed to real artists who would need pro level dSLR AF, can't think of many of those... and I don't mean to offend sport-shooters as not being artists
🙂