Canon has expanded its digital camera line with the new PowerShot S45, the successor to the PowerShot S40. The four-megapixel Canon PowerShot S45 features a 3X f/2.8 optical zoom lens and a compact, silver-toned aluminum exterior. The S45 includes Canon’s DIGIC Imaging Processor to help improve overall image quality; increased processing speed; a 9-Point AiAF autofocus system; 9-position White Balance; selectable metering modes (Evaluative, Center-Weighted Average, and Spot) for precise exposure in a variety of shooting conditions; and selectable second-curtain sync flash, according to Yukiaki Hashimoto, vice president and general manager of Canon’s photographic products group. Also present is an improved movie mode that captures clips with sound up to three minutes long; and direct print capabilities with Canon’s CP-100 dye-sublimation printer and several Canon bubble jet printers. DIGIC (Digital Imaging Integrated Circuit) helps to achieve higher picture quality by improving the signal processing algorithms of image processors found in previous PowerShot models, according to Hashimoto. The same DIGIC Imaging Processor that enables other new features such as extended-duration movie clips has also enabled Canon to improve the S45’s autofocus system, he added. Even when the camera is set to record images in one of the JPEG settings, the PowerShot S45 allows the captured image to be saved as a RAW file after it is recorded. This feature can be accessed at any time during the Review period immediately after the image is captured, and is particularly useful when the white balance or other planned effects were not obtained, or when resolution, contrast, saturation or sharpening need to be modified in the execution of the final image. RAW images can be processed after storage by means of the bundled software. The Canon PowerShot S45, due out later this month at a suggested retail price of around £430 plus VAT, is fully compatible with Macs and Windows PCs. Bundled software includes ImageBrowser 2.7, PhotoStitch 3.1, QuickTime 5.0, CP-100 Print Driver 2.1, Acrobat Reader, and RemoteCapture.