We'll start off at the center of the scene, where you can see that the Canon PowerShot D30 has a bit of moiré, while the other cameras do not. Looking at the text boxes just above our starting point, you can see that none of the cameras do a great job of capturing this fine detail, with the D30 coming out on top. Corner sharpness is often a problem on cameras with 'folded optics' like these four, and you can see by yourself by starting here and checking out the other corners.

Increasing the sensitivity to ISO 400, one can get an impression for how the different manufactures handle noise reduction. Canon is very conservative, which doesn't smudge details like the Nikon and Olympus. The Pentax WG-4 is somewhere in the middle.

You can see a more real-world example of this by viewing the faces in the scene. If you downsize the photos to 8MP (which is probably on the high end for most consumers), the differences fade away, at least at this sensitivity. Something else worth pointing out is very fine detail, which the Canon and Pentax handle best.

Looking at one of the faces that's been downsizedto our 8MP print-size, you can see the effects of noise reduction are more obvious at ISO 800 than at lower sensitivities. Even at 3 megapixel, the different in quality between the Pentax WG-4 and Nikon AW120 is obvious.

While fine detail doesn't look great at ISO 1600 when viewed at 100% (especially on the Nikon), you can still get away with using this sensitivity for sharing on Facebook or e-mail after some downsizing.