Camera Tip #12: Changing ISO
Many digital cameras allow you to change the "ISO" or sensitivity setting. Most models will default to a lower setting, usually around 100. When shooting in low light try increasing the ISO. The higher the ISO is set the more it will gather the existing light and allow you to shoot with faster shutter speeds. Beware, that the higher your ISO the more image quality you'll sacrifice. Try experimenting at different ISO's, as every camera has different capabilities with varying results. Also note that on many modern digital cameras, AUTO ISO is also a good choice. In some models you will even be able to set the upper limit.