Originally Posted by
Thalassa
The large sensor and wide ISO range certainly are in favor of the Sony. Most of the other specs are pretty impressive, too.
The three aspects of the camera I am slightly uncomfortable with are the high pixel density, slowish lens (especially in the long end), and the 28 mm equivalent wide angle. The lack of true wide angle seems to be at least partially remedied by the nifty swing panorama feature.
The pixel density of the RX100 is actually significantly lower than the Canon S100 and Panasonic LX7.
Sony RX100 pixel density = 20MP/(13.2mm *8.8mm) = 0.172MP/mm^2
Canon S100 pixel density = 12MP/(7.5mm * 5.5mm) = 0.290MP/mm^2
Panasonic LX7 pixel density = 10MP/(7.4mm * 5.6mm) = 0.241MP/mm^2
So in addition to having 30% less pixel density than the LX7, it also has double the pixels. Amazing little thing.
Here's an actual head-to-head comparison between these cameras. You can click on the pictures for a 100% view.
ISO100:
Sony RX100
Panasonic LX7
Canon S100
ISO6400:
Nikon D7000 (just for kicks)
Sony
Panasonic
Canon