We live in an HDR world.

Yet the current crop of video cameras come no where near close to capturing the dynamic range we see.

Various sources state that the human eye has a dynamic range of roughly 14 stops. That is a generalization that doesn't take into account the fact the human eye is amazingly adaptive under a wide variety of lighting conditions (see Sean McHugh's excellent discussion of this topic at his blog Cambridge in Colour). Taking in to account that our eyes essentially have variable ISO and pupil aperture, the actual dynamic range is an astonishing 24 stops. CMOS sensors have come a long ways with the current crop of sensors hovering at a maximum practical dynamic range of 5 to 9 stops. Going beyond that is huge technical challenge. 

New developments in HDR video capture are overcoming those severe limitations.

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