Originally Posted by
black pearl
The Canon isn't a Bridge Camera its a Prosumer Compact.
A bridge camera looks like a baby SLR, generally has a very large zoom and a viewfinder....not all do but thats the general theme. The sensors tend to be the same size as standard compacts - tiny in other words - so their ultimate quality is limited. Where they score is the massive zooms available, there's a Canon with a 35x Optical Zoom (24-840mm) and a Nikon with a frankly astonishing 42x (22.5-1000mm) zoom.
The G12 and stuff like the Nikon P7100, Panasonic LX-5 etc have shorter zooms of much higher optical quality, much larger sensors giving far superior quality files, can shoot RAW files and have very high build quality. They also tend to have an optical viewfinder and readily accessible manual controls. The number of pixels in a compact camera might seem back-to-front but what you want is less to achieve more quality.
In a nutshell the bigger the pixels (larger sensor, smaller number of pixels crammed on it) the better the end result. This is why Compact System Cameras are taking over from Prosumer models as they have larger sensors and cost about the same.