D600/D800 Firmware Update Coming

BTW I tested my D7000 this week, based on a tip on Nikonians, and by entering LiveView in Shutter priority and then twiddling with exposure compensation I was able to manipulate the Aperture into opening and closing while recording.  Exposure IS affected though.

I guess if the goal is varying Aperture so that DOF changes during filming (from narrow to deep or vice versa) while "auto" maintains a consistent exposure.  I don't think I can get my D7000 to do this.  And trying my D800E it can do this, varying Aperture while filming in Aperture priority but when ISO jumps to compensate and maintain an even exposure, there is a noticeable flicker on the resultant video.  So stepping back here, what is the requirement to vary Aperture while filming and did we expect to see flickering we we do so?

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Best Regards,
SteveK
'A camera is an instrument that teaches people how to see without a camera.' -- Dorothea Lange
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