| key specs | 
| Camera Type | Digital Camera | DSLR Camera | 
| Effective Pixels | 10 MP | 18 MP | 
| Sensor Type | CCD | CMOS | 
| Display Type | TFT LCD | - | 
| Display Size | 3 inch | 3 inch | 
| Battery Type | AA Alkaline Battery | Lithium ion | 
| general | 
| Brand | Canon | Canon | 
| Model | PowerShot SX120IS 10.0MP Digital Camera | EOS 550D 18MP DSLR Camera | 
| Model Name | PowerShot SX120IS | EOS 550D | 
| Model Number | SX120IS | EOS 550D | 
| Series | PowerShot | - | 
| Color | Black | Black | 
| Type | Digital Camera | DSLR Camera | 
| Effective Pixels | 10 MP | 18 MP | 
| Dimensions(WxHxD) | 110.6 x 70.4 x 44.7 mm | 97.5 x 128.8 x 75.3 mm | 
| Weight | 245 GM | 475 GM | 
| Temperature | 0 to 40 | 0 to 40 | 
| SLR Variant | - | Body With Ef-S 18-135 Mm Is Lens | 
| Tripod Socket | - | Yes | 
| Face Detection | - | Yes | 
| Ports | - | Type C, Mini HDMI | 
| sensor features | 
| Sensor Type | CCD | CMOS | 
| Sensor Size | 1/2.5 inch | 22.3 x 14.9 mm | 
| Maximum ISO | 1600 ISO | 6400 ISO | 
| ISO Rating | - | ISO 100 - 6400 | 
| lens features | 
| Focal Length | 6.0 W - 60.0mm T f/2.8 W - f/4.3 T  35mm equivalent 36 W - 360 T mm | - | 
| Digital Zoom | 4x | 1.5x | 
| Lens Mount | - | Canon EF/ EF-S lenses | 
| Manual Focus | - | Yes | 
| Color Filter | - | Primary RGB Color Filter | 
| Dust Reduction | - | Yes | 
| viewfinder features | 
| Viewfinder Coverage | 100% | - | 
| View Finder | - | Yes | 
| View Finder Type | - | Eye-level Pentamirror | 
| focus features | 
| Focus Range | Normal 1.6 ft./50cm-infinity W, 3.3 ft./1m-infinity T  Macro 0.4 in.-1.6 ft./1-50cm W | - | 
| Metering Modes | Evaluative, Center-weighted average, spot | - | 
| White Balancing | Auto*, Daylight, Cloudy, Tungsten, Fluorescent, Fluorescent H, Custom | Auto, Daylight, Shade, Cloudy, Tungsten, Light, White Fluorescent Light, Flash, Custom Custom WB | 
| Auto Focus | - | Yes | 
| exposure features | 
| Exposure Mode | Program AE, Manual AE Lock, Program Shift, Safety Shift, Auto ISO Shift | - | 
| Spot Meter | Yes | - | 
| Exposure Compensation | +/-2 stops in 1/3-stop increments | - | 
| Manual Exposure | Yes | - | 
| shutter features | 
| Self-timer | Yes | Yes | 
| Continuous Shots | Normal approx. 1.3 fps AF approx. 0.9 fps LV approx. 0.9 fps | Yes, 3.7 Shots at 1 fps | 
| Shutter Speed | - | 1/4000 sec | 
| flash features | 
| Flash Modes | Auto, Auto w/Red-eye Reduction, Flash On, Flash On w/Red-eye Reduction, Flash Off FE lock, Safety FE, Slow Synchro | - | 
| Flash Compensation | 2 stops in 1/3-stop increments | - | 
| Built-in Flash | - | Yes | 
| External Flash | - | Yes | 
| image features | 
| Image Format | Exif 2.2 JPEG | JPEG, RAW, RAW, DPOF, EXIF | 
| Gross Pixel | 10.3 MP | - | 
| Still Image Size | Still Image 3,648 x 2,736 Large, 2,816 x 2,112 Medium 1, 2,272 x 1,704 Medium 2, 1,600 x 1,200 Medium 3, 640 x 480 Small, 3,648 x 2,048 Widescreen | - | 
| Aspect Ratio | - | 30200 AM | 
| display features | 
| Display Type | TFT LCD | - | 
| Display Size | 3 inch | 3 inch | 
| Display Resolution | Approx. 230,000 pixels | - | 
| LCD Display | TFT Color LCD | - | 
| LCD Display Image Resolution | Approx 230000 pixels | - | 
| connectivity features | 
| USB | Yes | - | 
| Wifi | - | No | 
| storage and power features | 
| Upgradable Memory | Yes | - | 
| Card Type | SD/SDHC memory card, MultiMediaCard, MMCplus card, HC MMCplus card | - | 
| Power Supply | AC Adapter Kit ACK-800 optional | - | 
| Batteries Included | Yes | - | 
| Battery Type | AA Alkaline Battery | Lithium ion | 
| Battery Life | Still Image approx. 130 shots AA-size Alkaline Battery, approx. 370 shots AA-size Ni-MH Battery | - | 
| audio and video features | 
| Audio Features | Audio data WAVE Monaural | - | 
| Video Resolution | 640 x 480 30 fps/30 fps LP, 320 x 240 30 fps | 5,184 | 
| Video Format | AVI Image data Motion JPEG | MOV, H.264 | 
| modes and functions features | 
| Shooting Modes | Auto*, P, Av, Tv, M, Easy, Portrait, Landscape, Special Scene Foliage, Snow, Beach, Sunset, Fireworks, Aquarium, ISO 3200, Indoor, Kids & Pets, Night Snapshot, Movie, Night Scene * Automatically detects the shooting scene. | Still Photo Shooting, Movie Shooting |