Aperture Comparison:
Again we set each camera to aperture priority with an ISO of 200.
Each of the cameras features a fairly similar aperture range. Both the P7000 and G12 have a range of f/2.8 to f/8 while the LX5 has a range of f/2 to f/8. To really see the differences in each image, open the full-resolution version

Canon G12 largest aperture: f/2.8 at 1/800 sec (Full-Resolution Original)

Canon G12 smallest aperture: f/8 at 1/200 sec (Full-Resolution Original)

Panasonic LX5 largest aperture: f/2 at 1/1000 sec (Full-Resolution Original)

Panasonic LX5 smallest aperture: f/8 at 1/80 sec (Full-Resolution Original)

Nikon P7000 largest aperture: f/2.8 at 1/936 sec (Full-Resolution Original)

Nikon P7000 smallest aperture: f/8 at 1/133 sec (Full-Resolution Original)