For my testing of this new Ultra-DSLR's latitude and exposure range I added three difficult shooting conditions into one scene; TV light, a fireplace, and night time.
The LED LCD TVs skew towards the 5600K light output range - meaning white images on an LED LCD TV tend to read as daylight.
Fires in a fireplace usually read at 2600-3000K - they are more orange/red than an incandescent tungsten bulb. And night is well... it's dark.
Add a white/cream/black cat and you've got a stress test that most DSLR cameras will perform poorly in or fail altogether.
But not this camera.
Yes there's a lot of grain in some of the images.
And yes the color actually over-saturates instead of washing out (that was unexpected).
But dark and light areas are captured with little or no data loss.
I don't think that you're going to get amazingly strong images out of ANY DSLR in these conditions, but in all if I had set up a side-by-side test with my Canon 5D MK2 - there'd be no question that some of these images the 5D wouldn't have been able to capture at all.
Also it's noteworthy that the slowest shutter speed I used was 1/250 sec.
This camera has more latitude than any other I've ever tested or used.