NorBro wrote:If you have all of your gear neatly organized in a bag or case with dividers, how can it ever turn on?
Sometimes: Gravity.
Since the BMCC's power-on button is a sensitive momentary contact push button (a design fail), the weight of the camera pressing against almost anything (even something soft like foam) can be sufficient to turn the camera on.
As noted above, there are ways you can pack the cam to avoid this, but because of this unfortunate design defect/oversight/neglect, it's far, far easier to accidentally power-on a BMCC than it is with most other cams. And, because the universe she has a wicked sense of humor, the BMCC's non-removeable battery compounds the idiocy.
Don't misunderstand me: The BMCC's built-in batt is one of my favorite features, but putting the cam on a "hair trigger" is right up there with the worst of BMD's mistakes.
If the BMPC-4K "works" the same way it won't prevent me from buying one, but it won't be a reason to love it, either.