In the days of film, it was well understood that the bigger the negative, the better the quality of the picture. The same is true with digital cameras, only here the ‘negative’ is the sensor. The larger the sensor size, the better (generally) the picture quality. Megapixels do confuse the issue somewhat because you can […]
This is the smallest sensor size in widespread use for photography. You'll find it (or sensors of a similarly small size) in smartphones, point and shoot cameras and some bridge and long zoom travel cameras.