Canon PowerShot A640 10MP Digital Camera with 4x Optical Zoom 10-megapixel CCD captures enough detail for photo-quality 18 x 24-inch prints 4x optical zoom; 2.5-inch vari-angle LCD display ISO range up to ISO 800 for less blur in low light while hand-holding 3:2 guide masks LCD to display 4 x 6-inch print size; 16:9 format option for still images Stores images on SD cards; powered by 4 AA-size batteries