Camera Rocket Review Our evaluation of T3 vs 40D

Image Quality

RAW image quality independent of lens

Rebel T3
8.5
EOS 40D
8.4
DxOMark Low light, DxOMark Color depth and DxOMark Dynamic range

Focusing

How fast and easily does the camera nail focus

Rebel T3
6.3
EOS 40D
8.4
Focus lag, cross type focus points and focus points

Responsiveness

How much delay is there between you and your photo?

Rebel T3
8.4
EOS 40D
9.2
Focus lag, continuous shooting and Startup delay

Reviews

What do the experts think?

Rebel T3
9.0
EOS 40D
9.3
Reviews from canonwatch.com, trustedreviews.com, techradar.com, photographyblog.com and 2 more

No winner declared

Too close to call

Benchmarks Real world tests of Rebel T3 vs EOS 40D

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

Rebel T3
755 ISO
EOS 40D
703 ISO

Resolution Results from photos of standard resolution charts

Rebel T3
1,700 LPH
EOS 40D
2,000 LPH

Focus lag Delay between fully pressing shutter to image capture

Rebel T3
309 ms
EOS 40D
128 ms

Shutter lag Delay to take a photo when prefocused

Rebel T3
113 ms
EOS 40D
61 ms

Startup delay Delay from power on to first photo

Rebel T3
300 ms
EOS 40D
400 ms

Continuous shooting Delay between fully pressing shutter to image capture

Rebel T3
3 fps
EOS 40D
6.5 fps

Features Key features of the Rebel T3  vs EOS 40D 

Megapixels Maximum resolution images are captured at

Rebel T3
12.2 MP
EOS 40D
10.1 MP

Max ISO Maximum light sensitivity of the sensor

Rebel T3
6,400 ISO
EOS 40D
3,200 ISO

Focus points How many different points the camera can focus on

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

Rebel T3
2.7"
EOS 40D
3"

Viewfinder size Large viewfinders are brighter and more comfortable to use

Rebel T3
0.54x
EOS 40D
0.59x

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

Rebel T3
26.8 microns
EOS 40D
32.6 microns

Reviews Word on the street

Rebel T3  vs EOS 40D 

7.0
9.0
Shooting into the sun with bright reflections off the sea is an exposure nightmare, but the additional dynamic range of the 14-bit RAW mode has coped admirably.
EOS 40D

8.0
8.5
But the 40D is better made, more durable, with more features, much faster continuous shooting and a more 'professional' control layout.
EOS 40D

Overall

8.0 Out of 10
8.7 Out of 10

Specifications Full list of technical specs

sensor

Rebel T3  vs
EOS 40D 
Type CMOS CMOS
Megapixels 12.2 MP 10.1 MP
Resolution 4272 x 2848 3888 x 2592
Size APS-C APS-C
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
Codecs
RAW
JPEG
Self cleaning sensor No Yes
Tested vertical resolution 1,700 LPH 2,000 LPH
Tested horizontal resolution 1,700 LPH 2,000 LPH

focus system

Type Phase detection Phase detection
Focus points 9 9
Cross type focus points 1 9

shutter

Min 30 s 30 s
Max 1/4000 s 1/8000 s

form factor

Size 130 x 100 x 78 mm 146 x 108 x 74 mm
Thickness 78 mm 74 mm
Weight 459 g 822 g
Is weather sealed No No

features

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

video

Rebel T3  vs
EOS 40D 
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

display

Type LCD LCD
Size 2.7" 3"
Resolution 230 k dots 230 k dots
Has a touch screen No No
Has a flip out screen No No
Supports live view Yes Yes

viewfinder

Viewfinder mirror Opaque Opaque
Viewfinder Yes Yes
Type Pentamirror Pentaprism
Coverage 95% 95%
Magnification 0.87x 0.95x
Viewfinder size 0.54x 0.59x

performance

Max continuous shooting 3 fps 6.5 fps
Battery life 700 1,100
Continuous shooting
6.5 fps, JPEG
3 fps, JPEG
Focus lag 309 ms 128 ms
Shutter lag 113 ms 61 ms
Startup delay 300 ms 400 ms
Canon Rebel T3
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Canon EOS 40D
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Comments

Showing 2 comments.
Thanks for the feedback Huzaifa!
Wow, Great reviews. Thanks for organizing the information so well, really easy to understand when. Especially like the Differences section!
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