The PowerShot S45 has all the features you could ask for, including 4 Megapixel resolution, an improved Movie Mode, and a host of options, to make this the camera to suit all your digital desires. The PowerShot S45's 9-point AiAF lets you focus your subject no matter where it appears in the viewfinder. For more freedom, FlexiZone AF/AE lets you select which part of the frame you wish to focus on without moving your camera. Flexzone AF is available in the P, Tv, Av and M Shooting Modes.The S45's DIGIC Image Processor revolutionizes how you shoot digital by allowing the camera to process images faster and improving the accuracy of the autofocus. DIGIC also reduces the effects of noise in your images.