Panasonic Lumix DMC-GX7 review: Closing the gap between APS-C mirrorless rivalsBy Kevin Carter - Tuesday October 15 2013 Sensor Review
Compared to rival offerings, the GX7 performs very similarly to that of the Olympus PEN E-P5 (a model that’s thought to share the same sensor as the Olympus OM-D E-M5 and the Panasonic GH3) and it’s only -1/3 of a stop in overall image quality behind the 16-Mpix Sony NEX-6.
The eight-point lead of the Sony is slight in real terms. With a Color Depth Score of 22.6 bits, the GX-7 is -2/3 stop behind the Sony, and around -1 stop less than that model in dynamic range. Perhaps most telling of all is the gains made in the low-light score. It’s just -1/2 stop less compared with the Sony, and around -1/3 less than the Olympus.