Pentax Optio S40 4MP Digital Camera with 3x Optical Zoom 4-megapixel resolution for photo-quality 11 x 15 sized enlargements Pentax 3x optical zoom lens combines with 2.6x digital zoom for 7.8x total zoom 7 auto picture modes take the guesswork out of composing for most-common photo environments; help button explains dial positions and features Connects to computers via USB Powered by 2 AA-size batteries (alkaline included, rechargeable lithium ion recommended)