Canon PowerShot S50 5MP Digital Camera w/ 3x Optical Zoom 5 megapixel sensor (2592 x 1944 pixels) for enlargements up to 20 x 30 inches 3x optical zoom and 4x digital zoom (12x total) Nine point AiAF, flexizone focus selection, three-minute movie clips, and automatic image rotation Compatible with CompactFlash Type I and II cards; 32 MB card included Powered by rechargeable lithium-ion battery (NB-2L); connects to PCs and Macs via USB 1.1