Pentax Optio E40 8.1MP Digital Camera with 3x Optical Zoom 8.1-megapixel CCD captures enough detail for photo-quality 16 x 22-inch prints 2.4-inch LCD display; 3x optical zoom Face Recognition AF and AE function; Digital Shake Reduction mode Green mode to automate camera setup when shooting still images Stores images on SD memory cards; powered by 2 AA-size batteries