I'm not sure what you mean by "no rainbow's end", but the mention of "disruptive AF" refers to the apparent ability of the A7R2 to autofocus with 3rd party glass as fast as those lenses do on their native bodies. It's only "disruptive" to Canon's and Nikon's revenues.Does the A7R2 bring disruptive AF?
Yesterday DPR published this article. It was very easy for me to understand a few things that I had either wrong or unclear about AF.
Go the second page if you want to get there faster.
Opinion: Did Sony just do the impossible?: Digital Photography Review
No rainbow's end... yet.
Eduardo
This is an amazing OpEd piece. Dpreview rarely does these, and generally seems to have a pro-Canikon slant. Having this editorial be pro-Sony is, in itself, quite amazing.
... and it's heady stuff. Reading it puts into perspective the huge leap in digital image technology that Sony has accomplished. Even if it is a high end camera, it may very well be a "game changer", one that will be a notable point in the future evolution of photography.