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Canon PowerShot A640 Digital Camera Review
The 10.0-megapixel sensor allows for creative cropping while providing enough detail for large, high-quality prints. A new Safety Zoom takes advantage of the camera's high resolution to offer extra zoom magnification without affecting image quality--up to 16x zoom when shooting Small size images. Users can also activate the Digital Teleconverter to add extra telephoto reach on all shots, similar to adding a teleconverter lens to the camera.
The 4x optical zoom lens achieves a 35-140mm focal length (35mm equivalent) while allowing the Canon PowerShot A640 to maintain a compact size. The lens construction incorporates 8 elements in 7 groupings, including two aspherical elements to maximize sharpness across the whole image. With a maximum aperture range of f2.8 (wide) to f4.1 (telephoto), the lens is remarkably bright at the telephoto end.
ISO 800 mode improves results when shooting in low-light settings and enables flash-free photography indoors. The camera's High ISO Auto setting prioritizes fast shutter speeds by automatically using the higher range of ISO sensitivities, reducing the risk of unwanted image blur.
Canon Powershot A640 Customer Reviews and Ratings
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