ISO 100 produces good detail in shadow areas.
By ISO 200 it's possible to spot some minor effects of noise-reduction, although you have to look hard.
By ISO 400 noise has begin to creep into the image.
As with so many other compacts using 1/2.3in sensors ISO 800 is the cut-off point in terms of quality.
ISO 1600 is fairly noisy and it's possible to see this in images, even at reduced sizes.
The top standard sensitivity setting of ISO 3200 shows a loss of saturation as well as noise.
Image quality takes a bit of a nosedive at the first extended setting of ISO 6400. Maximum resolution is pegged at 8MP too.
The top extended setting of ISO 12,800 is only achievable at 4MP and image quality is pretty terrible.