Imaging Resource have reviewed the 4.0 megapixel Canon Powershot S410 (known as the Digital IXUS 430 outside North America).

“Image Noise: Noticeable even at ISO 50, but probably not objectionable for most users until ISO 400. With higher CCD resolutions, the pixels are getting smaller, and so image noise is becoming more apparent than in earlier generations of cameras. The S410 exemplifies this trend, in that there is slight but visible image noise, even in its ISO 50 images. For most users though, the results at ISO 50 and 100 will likely be OK, 200 marginal, and only ISO 400 really objectionable. Also, as you’d expect due to its slightly larger pixels, the S410 shows slightly less noise than its higher-resolution sibling, the S500.”

Website: Imaging Resource - Canon Powershot S410 Review