Camera Rocket Review Our evaluation of T3i vs T3

Image Quality

RAW image quality independent of lens

DxOMark Low light, DxOMark Color depth and DxOMark Dynamic range


How fast and easily does the camera nail focus

Focus lag, cross type focus points and focus points


How much delay is there between you and your photo?

Focus lag, continuous shooting and Startup delay


What do the experts think?

Reviews from,,, and 3 more

No winner declared

Too close to call

Benchmarks Real world tests of Rebel T3i vs T3

Low light image quality Highest ISO setting that still achieves great image quality

Rebel T3i
793 ISO
Rebel T3
755 ISO

Resolution Results from photos of standard resolution charts

Rebel T3i
2,500 LPH
Rebel T3
1,700 LPH

Focus lag Delay between fully pressing shutter to image capture

Rebel T3i
283 ms
Rebel T3
309 ms

Shutter lag Delay to take a photo when prefocused

Rebel T3i
87 ms
Rebel T3
113 ms

Startup delay Delay from power on to first photo

Rebel T3i
1,500 ms
Rebel T3
300 ms

Continuous shooting Delay between fully pressing shutter to image capture

Rebel T3i
3.7 fps
Rebel T3
3 fps

Features Key features of the Rebel T3i  vs T3 

Megapixels Maximum resolution images are captured at

Rebel T3i
17.9 MP
Rebel T3
12.2 MP

Max ISO Maximum light sensitivity of the sensor

Rebel T3i
12,800 ISO
Rebel T3
6,400 ISO

Focus points How many different points the camera can focus on

Screen size Larger screens make it easier to preview and review photos

Viewfinder size Large viewfinders are brighter and more comfortable to use

Rebel T3i
Rebel T3

Pixel size How much area of the sensor is dedicated to each pixel

Rebel T3i
18.5 microns
Rebel T3
26.8 microns

Reviews Word on the street

Rebel T3i  vs T3 

Overall the video shooting isn't as seamlessly integrated as it is on the 7D - you still have to select a separate mode to engage video shooting for one thing.
Rebel T3i

The Canon EOS 600D's maximum shutter speed is 30 seconds and there's a Bulb mode for even longer exposures, which is excellent news if you're seriously interested in night photography.
Rebel T3i

At 135mm the 18-145mm kit lens has produced an image displaying good levels of sharpness and detail.
Rebel T3i

Another significant addition is the Wireless Flash option, which allows the camera's pop-up flash to be used as the master for other Speedlite flashguns.
Rebel T3i


8.3 Out of 10
8.0 Out of 10

Specifications Full list of technical specs


Rebel T3i  vs
Megapixels 17.9 MP 12.2 MP
Resolution 5184 x 3456 4272 x 2848
Area 22.3 x 14.9 mm 22.2 x 14.7 mm
Crop factor 1.6x 1.6x
Pixel size 18.5 microns 26.8 microns
Light sensitivity 100 ISO to 6,400 ISO 100 ISO to 6,400 ISO
Self cleaning sensor Yes No
Tested vertical resolution 2,500 LPH 1,700 LPH
Tested horizontal resolution 2,500 LPH 1,700 LPH

focus system

Type Phase detection Phase detection
Focus points 9 9
Cross type focus points 1 1
Supports continuous No No


Min 30 s 30 s
Max 1/4000 s 1/4000 s

form factor

Size 133.1 x 99.5 x 79.7 mm 130 x 100 x 78 mm
Thickness 79.7 mm 78 mm
Weight 570 g 459 g
Is weather sealed No No


Is a smart camera No No
Includes a GPS No No
Supports HDR No No
Automatic panorama No No
Create realistic 3D images No No
Image stabilization


Rebel T3i  vs
Video 1920 x 1080 @ 30 fps 1280 x 720 @ 30 fps
Shoots video in 24p Yes No
Shoots high speed video No No
External mic jack 3.5mm None
Autofocus while shooting video Manual


Size 3" 2.7"
Resolution 1,040 k dots 230 k dots
Has a touch screen No No
Has a flip out screen Yes No
Supports live view Yes Yes


Viewfinder mirror Opaque Opaque
Viewfinder Yes Yes
Type Pentamirror Pentamirror
Coverage 95% 95%
Magnification 0.85x 0.87x
Viewfinder size 0.53x 0.54x


Max continuous shooting 3.7 fps 3 fps
Battery life 440 700
Continuous shooting
3.7 fps, JPEG
3 fps, JPEG
Focus lag 283 ms 309 ms
Shutter lag 87 ms 113 ms
Startup delay 1,500 ms 300 ms
Canon Rebel T3i
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Canon Rebel T3
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