Canon Digital IXUS 100 IS / PowerShot SD780 IS ELPH Review at Cameralabs – Rating Score: 82% (RECOMMENDED), and Gordon Laing concludes:
On the whole, still image quality was pretty good, with its 12 Megapixels recording a decent amount of detail in areas where the optics perform well. Noise levels were similar to most compacts with similar sensors, which means a faint smattering of speckles if you’re really looking at the lowest sensitivities, and more visible textures at the ISO increases. As usual, the best results are below 200 ISO.
If the highlight of the camera is its tiny and perfectly-formed shell, then the biggest downside is arguably the lens within. The 3x optical range is unremarkable and lacking any kind of true wide-angle coverage.