| Maximum image resolution: | 2,272 x 1,704 |
| Image resolution options: | Large |
| Image resolution options: | Medium |
| Image resolution options: | Small |
| Maximum CCD resolution: | 4.0 million pixels |
| CCD size (inches): | 1/1.8 inches |
| Optical viewfinder: | Real-image optical zoom viewfinder |
| LCD screen size: | 1.8 inch low temperature polycrystalline silicon TFT color LCD |
| LCD swivel: | No |
| Aperture: | f/2.8-f4.9 |
| Optical zoom: | 3x |
| Digital zoom: | 3.6x |
| Compatible memory type: | CompactFlash (CF) Card Type I or Type II |
| Onboard memory: | 0 MB |
| Included memory cards: | 32 MB CompactFlash |
| Max. photos at highest quality: | 14 with 32 MB card |
| Max. photos at lowest quality: | 337 with 32 MB card |
| Image type(s): | JPEG |
| Uncompressed mode: | RAW |
| ISO film-speed equivalency: | 50, 100, 200, 400 |
| Macro focus range: | 10 cm |
| Shutter speed range: | 15-1/1,500 sec |
| Autofocus system: | 9-point AiAF or FlexiZone AF |
| Manual focus: | Yes |
| Focus range: | Macro AF |
| Shutter priority mode: | Yes, full range manual |
| Aperture priority mode: | Yes, full range manual |
| Main exposure mode: | Program AE, Shutter priority AE, Aperture priority AE or Manual exposure control; AE lock is available |
| Spot metering mode: | Yes |
| Manual exposure mode: | Yes |
| Programmed exposure modes: | Portrait, Landscape, Night Scene, Fast Shutter, Slow Shutter, Stitch Assist and Movie |
| Manual white balance mode: | TTL Auto White Balance, Pre-set White Balance (available settings |
| Built-in flash: | Yes |
| Red-eye reduction: | Yes |
| Fill-flash (forced flash): | No |
| Flash-off mode: | Yes |
| Night portrait (flash synch) mode: | No |
| Hot shoe for external flash: | No |
| Black and white: | Yes |
| Movie mode: | Yes, resolutions of 320 x 240 and 160 x 120 |
| Max. movie length: | Up to 3 minutes |
| Audio recording: | Yes |
| Self timer: | 2 or 10 sec |
| Remote included: | No |
| Special effects: | Vivid Color, Neutral Color, Low Sharpening, Sepia, Black and White, and Custom |
| Compatible systems: | PC, Mac |
| Mac system requirements: | Mac OS 8.6 through 9.2, OS X; note that Adobe Photoshop LE, Canon File Viewer Utility v. 1.0, and USB Mounter v. 1.8 software are not supported in Mac OS X |
| PC system requirements: | Windows 98 (including the Second Edition), Windows 2000, Windows Me, Windows XP |
| Software included: | ArcSoft Camera Suite |
| Serial output: | No |
| USB output: | Yes |
| Video output: | Yes |
| Batteries included: | Yes |
| Rechargeable batteries included: | Yes, Lithium Battery Pack NB-2L |
| AC adapter included: | Yes, Battery Charger CB-2LT |
| Body type: | Point-and-shoot |
| Included in box: | PowerShot S45 digital camera, battery and battery charger, USB and AV cables, wrist strap, and ArcSoft Camera Suite CD-ROM and USB drivers for Windows and Mac |
| Width: | 4.4 inches |
| Height: | 2.3 inches |
| Depth: | 1.7 inches |
| Weight: | 11.1 ounces |
