« on: February 23, 2015, 12:34:12 PM »
They could do both: provide optional flip up for the semi-transparent film, which could be used in low light (slower frame rate). Leave it in place in good light for higher frame rate shooting.
It sounds like an interesting idea, but then you have the dark OVF, too. This could only be done with an optional EVF... Furthermore the AF_Modul would be rated at f5.6, too. The AF is not good at f5.6 (no double cross etc.).
Believe me, there were a lot of ideas back in the last two decades of DSLRs
Fast Mirrormovement @12fps and more with Liveview and Global Shutter seems to be the best solution for me.