• APS-C 332.3mm2
  • 18.0 megapixels
  • ISO 100 - 6400
  • 1/2.3 inch 28.1mm2
  • 16.0 megapixels
  • 28.00mm - 448.00mm (35mm eq.)
  • Detailed specifications
  • Canon EOS Rebel T2i (EOS 550D)
  • Canon PowerShot SX170 IS
Links
Prices:    
Manufacturer URL: Manufacturer website
Canon EOS Rebel T2i (EOS 550D) webpage
Manufacturer website
Predecessor: Canon T1i
T1i vs T2i
Canon SX160
SX160 vs SX170
Successor: Canon T3i
T2i vs T3i
 
General
Model Number: T2i SX170
Alternate Model Number(s): EOS 550D, EOS Kiss X4  
Camera Format: SLR Mid-Sized
Currently Manufactured: No No
Retail Price: $899.99 $179.99
Street Price: $692.18  
Date Available: 2010-02-25 2013-09-15
Tripod Mount: Yes Yes
Weight: 26.0 oz (736 g)
includes batteries, kit lens
8.9 oz (251 g)
includes batteries
Size: 5.1 x 3.8 x 3.0 in.
(130 x 97 x 76 mm)
4.3 x 2.8 x 1.7 in.
(108 x 71 x 44 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CCD
Sensor Manufacturer: Canon  
Effective Megapixels: 18.0 16.0
Sensor Format: APS-C 1/2.3 inch
Sensor size: 332.27mm2 (22.30mm x 14.90mm) 28.0735mm2 (6.17mm x 4.55mm)
Approximate Pixel Pitch: 4.30 microns 1.34 microns
Focal Length Multiplier: 1.6x n/a
Aspect Ratio: 3:2 4:3
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Fixed  
Self-Cleaning: Yes No
Sensor shift image stabilization: No No
On-Sensor Phase Detect: No No
DxO Sensor Score: 66  
DxO Color Depth Score (bits): 22.1  
DxO Dynamic Range Score (evs): 11.5  
DxO Maximum Effective ISO Score (iso): 784  
Image Capture
Image Resolution: 5184 x 3456 (17.9 MP, 3:2),
3456 x 2304 (8.0 MP, 3:2),
2592 x 1728 (4.5 MP, 3:2)
4608 x 3456 (15.9 MP, 4:3),
4608 x 2592 (11.9 MP, 16:9),
4608 x 3072 (14.2 MP, 3:2),
3456 x 3456 (11.9 MP, 1:1),
3264 x 2448 (8.0 MP, 4:3),
3264 x 1832 (6.0 MP, 16:9),
3264 x 2176 (7.1 MP, 3:2),
2448 x 2448 (6.0 MP, 1:1),
1600 x 1200 (1.9 MP, 4:3),
1920 x 1080 (2.1 MP, 16:9),
1600 x 1064 (1.7 MP, 3:2),
1200 x 1200 (1.4 MP, 1:1),
640 x 480 (0.3 MP, 4:3),
640 x 360 (0.2 MP, 16:9),
640 x 424 (0.3 MP, Other),
480 x 480 (0.2 MP, 1:1)
Image File Format: JPEG, .CR2 RAW (14-bit) JPEG (EXIF 2.3)
Continuous-mode frames/second: 3.6 0.8
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (30/​25/​24)
1280x720 (60/​50)
640x480 (60/​50)
1280x720 (25p)
640x480 (30p)
Movie File Format: .MOV (H.264) MOV (Image data: H.264, Audio data: Linear PCM (stereo))
Composite Video Out: Yes Yes
NTSC/PAL Switchable Video: Yes Yes
Video Usable as Viewfinder: Yes
HD Video Out: Yes No
HD Video Connection: HDMI
Lens & Optics
Lens Mount: Canon EF/EF-S n/a
Lens: Canon EF-S 18-55mm f/3.5-5.6 IS Canon Zoom Lens
Focal Length (35mm equivalent): 29 - 88mm 28 - 448mm
Focal Length (actual): 18 - 55mm 5 - 80mm
Zoom Ratio: 3.00x 16.00x
Aperture Range: f/3.5 - 22 / f/ 5.6 - 38 f/3.5 (W) / f/5.9 (T) - f/8.0
Integrated ND Filter: No No
Normal Focus Range: 25 cm to Infinity
9.8 in to Infinity
5 cm to Infinity
2.0 in to Infinity
Macro Focus Range:   1 - 50 cm
0.4 - 19.7 in
Filter Thread: 58.0mm n/a
Thread Type: n/a n/a
Optical Image Stabilization: Yes Yes
Digital Zoom: Yes
Digital Zoom Values:   Up to 4x
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: AF-dedicated Phase-detect CMOS Sensor, 9-point, center cross-type high-precision at f/2.8, light source detection Contrast Detection; Face Detect AiAF, Single AF point (center or face select and track)
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: Optical / LCD No / LCD
Viewfinder Type: SLR type; eye-level pentamirror 95% coverage, 0.87x mag., 19mm eyepoint, -3 to +1 diopter  
Focus Peaking: No No
EVF Resolution: n/a n/a
Viewfinder Magnification (35mm equivalent): 0.54x  
Viewfinder Magnification (nominal/claimed): 0.87x  
Display
Eye-level Viewfinder: Yes No
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 3.0
Rear Display Resolution: 1,040,000 dots 230,000 dots (76,666 px)
Touchscreen: No No
Articulating Screen: No No
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom: 10.0x 10.0x
Top Deck Display: No
Exposure
Maximum ISO (native): 6400 1600
Minimum ISO (native): 100 100
ISO Settings: Auto, 100 - 6400 in 1/3 or 1EV steps, H=12800 Auto, 100, 200, 400, 800, 1600
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Cloudy, Tungsten, White Fluorescent, Flash, Custom Auto, Daylight, Cloudy, Tungsten, Fluorescent, Fluorescent H, Custom
Shutter Speed Range: 1/4000 - 30 sec 1/3200 - 15 sec
Bulb Mode: Yes No
Exposure Compensation: +/- 5.0EV in 0.3EV steps +/- 2.0EV in 0.3EV steps
Metering Modes: 63-zone Evaluative, Center-weighted, Partial (9%), Spot (4%) Evaluative, Centre-weighted average, Spot (Center); Facial brightness is evaluated in Face Detection AF
Program Auto Exposure: Yes Yes
Aperture Priority: Yes Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes: Creative Auto, Portrait, Landscape, Close-up, Sports, Night portrait, Flash off, Auto Depth-of-field SCN:Portrait, Face Self-timer, Low Light, Snow, Fireworks; Creative Filters: Fisheye Effect, Miniature Effect, Toy Camera Effect, Monochrome, Super Vivid, Poster Effect
Self Timer: 10 or 2 seconds 2, 10, Custom seconds
Time Lapse (intervalometer): No Yes
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: E-TTL II Auto, Manual Flash On / Off, Slow Synchro; Red-Eye Reduction available
Flash Guide Number (ISO 100): 13.0 m / 42.7 ft. n/a
Flash Range Description: Lens aperture dependent Auto ISO: 1.6 - 9.8 ft. (W), 2.0 - 6.6 ft. (T) (50cm - 3.0m (W), 60cm - 2.0m (T))
Max Flash Sync: 1/200  
Flash Exposure Compensation: +/- 2.0 EV in 0.3EV steps +/- 2.0 EV in 0.3EV steps
External Flash Connection: Hot Shoe n/a
Built-In Wireless Flash Control: No  
Image Storage
Usable Memory Types: SD / SDHC / SDXC SD / SDHC / SDXC
UHS Support: No UHS support  
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: Yes No
Uncompressed Format: .CR2 RAW (14-bit)  
Movie File Format: .MOV (H.264) MOV (Image data: H.264, Audio data: Linear PCM (stereo))
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No No
NFC: No No
Bluetooth: No No
Built-In GPS: No No
Microphone Jack: Yes No
Headphone Jack: No No
External Connections: USB 2.0 High Speed USB 2.0 High Speed
PictBridge Compliant: Yes Yes
DPOF Compliant: Yes Yes
Remote Control: Yes No
Remote Control Type: Optional Wired or Wireless  
Connections (extended): Mini HDMI-CEC, External Microphone Jack, Wired Remote  
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 0.44  
Cycle time for RAW shooting in single shot mode (seconds per frame): 0.46  
Buffer size for RAW shooting in single shot mode (frames): 7  
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):    
Camera penalizes early shutter press? No
JPEG shooting speed in burst mode (fps, max resolution): 3.6 0.8
Buffer size for JPEG shooting in burst mode (frames, max resolution): 10 Unlimited
RAW shooting speed in burst mode (fps): 3.7  
Buffer size for RAW shooting in burst mode (frames): 6  
RAW+JPEG shooting speed in burst mode (fps): 3.6  
Buffer Size for RAW+JPEG shooting in burst mode (frames): 3  
Shutter lag (full AF, wide/mid): 0.25 seconds  
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR): 0.99 seconds  
Shutter lag (prefocused, live view - DSLR): 0.122 seconds  
Shutter Lag (manual focus): 0.162 seconds  
Shutter lag (full AF, with flash): 0.21 seconds  
Shutter Lag (prefocused): 0.096 seconds  
Shutter Lag (notes): Live View: Quick Mode: 0.991s Live Mode: 1.720s Prefocused: 0.122s  
Startup Time: 0.4 seconds  
Play -> Record Time: 0.7 seconds  
Flash cycle time, full power: 3.2 seconds  
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):   300 shots
Battery Life, Still (CIPA Rating OVF/EVF): 440 shots  
Battery Life, Video:    
Battery Form Factor: Proprietary LP-E8 Proprietary NB-6LH
Usable Battery Types: Lithium-ion rechargeble Lithium-ion rechargeable
Batteries Included: 1 x Proprietary LP-E8 Lithium-ion rechargeble 1 x Proprietary NB-6LH Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes No
Dedicated Battery Charger Included: Yes
Internal Charging Supported: No
Software
Included Software: Canon Solutions Disc (EOS Utility, ZoomBrowser EX/ImageBrowser, Digital Photo Professional.Picture Style Editor, Movie Edit Task, PhotoStitch) Canon software suite (ImageBrowser EX, PhotoStitch)
OS Compatibility: Windows XP/Vista/7, Mac OS X 10.4+ Windows, Mac OS X
Miscellaneous
Notes & Features: Flagship Rebel model. Full HD (1080p) Video, New Movie Crop Mode (640x480, 7x magnification), 9-point AF, 3-inch 3:2 LCD, EyeFi Card Status Display. DIGIC 4 processor, 720p HD video.