Camera Rocket Review Our evaluation of T3 vs Rebel XTi

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


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 2 more

Camera Rocket Score

Image Quality, Focusing, Responsiveness and Reviews

Canon EOS Digital Rebel XTi 

Camera Rocket recommends the Canon EOS Digital Rebel XTi  based on its focusing and reviews.

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Benchmarks Real world tests of Rebel T3 vs EOS Digital Rebel XTi

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

Focus lag Delay between fully pressing shutter to image capture

Shutter lag Delay to take a photo when prefocused

Startup delay Delay from power on to first photo

Continuous shooting Delay between fully pressing shutter to image capture

Battery life How many photos per battery charge (CIPA)

Rebel T3
700 photos

Features Key features of the Rebel T3  vs EOS Digital Rebel XTi 

Megapixels Maximum resolution images are captured at

Max ISO Maximum light sensitivity of the sensor

Rebel T3
6,400 ISO

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

Viewfinder size Large viewfinders are brighter and more comfortable to use

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

Rebel T3
26.8 microns
EOS Digital Rebel XTi
32.6 microns

Reviews Word on the street

Rebel T3  vs EOS Digital Rebel XTi 

1/30th sec, F5.6, ISO 100 At 100 ISO the picture is clean, well detailed and noise free, everything we've come to expect from a Canon DSLR.
EOS Digital Rebel XTi

In terms of looks, build and sheer usability, this tiny powerhouse of a camera borrows heavily from its acclaimed forerunner, the hugely successful and very likeable eightmegapixel 350D.
EOS Digital Rebel XTi


8.0 Out of 10
8.8 Out of 10

Specifications Full list of technical specs


Rebel T3  vs
EOS Digital Rebel XTi 
Megapixels 12.2 MP 10.1 MP
Resolution 4272 x 2848 3888 x 2592
Area 22.2 x 14.7 mm 22.2 x 14.8 mm
Crop factor 1.6x 1.6x
Pixel size 26.8 microns 32.6 microns
Light sensitivity 100 ISO to 6,400 ISO 100 ISO to 1,600 ISO
Self cleaning sensor No Yes

focus system

Type Phase detection Contrast detection


Viewfinder mirror Opaque Opaque
Viewfinder Yes Yes
Type Pentamirror Pentamirror
Coverage 95% 95%
Magnification 0.87x 0.8x
Viewfinder size 0.54x 0.49x


Max continuous shooting 3 fps 3 fps
Battery life 700 370
Continuous shooting
3 fps, JPEG
Focus lag 309 ms 200 ms
Shutter lag 113 ms 105 ms
Startup delay 300 ms 2,500 ms


Rebel T3  vs
EOS Digital Rebel XTi 
Video 1280 x 720 @ 30 fps None
Shoots video in 24p No N/A
Shoots high speed video No N/A
External mic jack None N/A
Autofocus while shooting video N/A


Size 2.7" 2.5"
Resolution 230 k dots 230 k dots
Has a touch screen No No
Has a flip out screen No No
Supports live view Yes No


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

form factor

Size 130 x 100 x 78 mm 127 x 94 x 65 mm
Thickness 78 mm 65 mm
Weight 459 g 556 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
Canon Rebel T3
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Canon EOS Digital Rebel XTi
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