ISO comparison

Photos taken with the Canon PowerShot ELPH 100 HS look soft even at its lowest ISOs, but get noticeably softer at ISO 400 and higher. However, if you're using them at small sizes, you can safely use up to ISO 800. Colors desaturate some at ISO 1600 and 3200, subjects look very soft, and detail is greatly diminished. While you might not want to view them at larger sizes or enlarge and heavily crop them, the high-ISO results should be satisfactory for Web use. They are about as good as you're going to get from a camera at this price, and a little post-shoot sharpening with basic editing software will improve things.