Nikon Coolpix 4100 4MP Digital Camera with 3x Optical Zoom 4-megapixel sensor captures enough detail to create photo-quality 11-by-15-inch enlargements 3x optical Zoom-Nikkor lens combines with 4x digital zoom for 12x total zoom One-Touch Red-Eye Fix feature; movie mode with sound; PictBridge compatible Store images in 14.5 MB internal memory or optional Secure Digital (SD) cards Powered by 2 AA-size batteries (alkaline included; rechargeable Ni-MH recommended); connects to computers via USB