Pentax Optio S50 5MP Digital Camera with 3x Optical Zoom 5-megapixel sensor captures enough detail for photo-quality 13 x 17-inch prints 3x optical zoom, 2.6x digital zoom 1.8-inch LCD monitor Store images on 11 MB internal memory or SD card slot Powered by CR-V3 or 2 AA batteries, about 420 shots on single charge