Photonstophotos measured the dynamic range of two new cameras: The Panasonic S1R and the Phase One IQ4 using the new 150 megapixel Sony sensor.
The new Panasonic holds up well with the Sony. Overall the Sony is still ahead with a major advantage in the 100-400 ISO range.
The $50,000 Phase One IQ4 uses the new Sony 150 MP sensor. And as expected it gives you over 1 stop DR performance advantage.