ISO comparison

Photo quality from the SH100 is good up to and including ISO 400. Like most sub-$200 point-and-shoots, it's not a camera you'd want to use in low-light conditions or indoors without a flash. The photos get spectacularly worse above ISO 400, picking up a lot color noise and losing detail. Actually, noise is a bit of a problem even at its lowest ISO sensitivities when photos are viewed at full size; if you need to enlarge and heavily crop your photos, I would skip the SH100. However, if you're considering this for its online-sharing capabilities and don't typically make large prints above 8x10s or view them at large sizes on screen, the SH100 is a safe choice for the money.