Camera Rocket Review Our evaluation of T3 vs 5D Mark III

Image Quality

RAW image quality independent of lens

DxOMark Low light, DxOMark Color depth and DxOMark Dynamic range

Focusing

How fast and easily does the camera nail focus

Focus lag, cross type focus points and focus points

Responsiveness

How much delay is there between you and your photo?

Focus lag, continuous shooting and Startup delay

Reviews

What do the experts think?

Reviews from canonwatch.com, trustedreviews.com, techradar.com, photographyblog.com and 2 more

Camera Rocket Score

Image Quality, Focusing, Responsiveness and Reviews

Winner
Canon EOS 5D Mark III 

Camera Rocket recommends the Canon EOS 5D Mark III  based on its image quality, focusing, responsiveness and reviews.

See full details

Benchmarks Real world tests of Rebel T3 vs EOS 5D Mark III

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

Rebel T3
755 ISO
EOS 5D Mark III
2,293 ISO

Resolution Results from photos of standard resolution charts

Rebel T3
1,700 LPH
EOS 5D Mark III
2,800 LPH

Focus lag Delay between fully pressing shutter to image capture

Rebel T3
309 ms

Shutter lag Delay to take a photo when prefocused

Rebel T3
113 ms

Startup delay Delay from power on to first photo

Rebel T3
300 ms

Continuous shooting Delay between fully pressing shutter to image capture

Features Key features of the Rebel T3  vs EOS 5D Mark III 

Megapixels Maximum resolution images are captured at

Rebel T3
12.2 MP
EOS 5D Mark III
22.3 MP

Max ISO Maximum light sensitivity of the sensor

Rebel T3
6,400 ISO
EOS 5D Mark III
102,400 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

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

Rebel T3
26.8 microns
EOS 5D Mark III
38.7 microns

Reviews Word on the street

Rebel T3  vs EOS 5D Mark III 

6.9
8.2
With the 5D Mark III's large images files it is advisable to use a fast CF memory card, especially if you are planning to shoot bursts in Raw+JPEG mode.
EOS 5D Mark III

9.0
9.0
The small body, large buttons and intuitive external controls, Creative Auto mode and on-screen Feature Guide make the EOS 1100d more appealing to owners of compacts looking to upgrade to a DSLR, but we'd also have liked to see an integrated cleaning system and the Scene Intelligent Auto mode included too, both features which would have made this camera even more beginner-friendly.
Rebel T3

7.0
9.0
If you’re in the market for a pro-spec DSLR that offers excellent handling, fantastic image quality, impressive low-light performance and excellent video abilities then the Canon 5D Mark III definitely deserves to be on your shortlist.
EOS 5D Mark III

8.0
9.0
We found that the screen provides a sharp, clear view even when shooting outside in bright sunlight.
EOS 5D Mark III

Overall

8.0 Out of 10
8.8 Out of 10

Specifications Full list of technical specs

sensor

Rebel T3  vs
EOS 5D Mark III 
Type CMOS CMOS
Megapixels 12.2 MP 22.3 MP
Resolution 4272 x 2848 5456 x 4096
Size APS-C Full frame
Area 22.2 x 14.7 mm 36 x 24 mm
Crop factor 1.6x 1.0x
Pixel size 26.8 microns 38.7 microns
Light sensitivity 100 ISO to 6,400 ISO 100 ISO to 25,600 ISO
Codecs
RAW
JPEG
Self cleaning sensor No Yes
Tested vertical resolution 1,700 LPH 2,800 LPH
Tested horizontal resolution 1,700 LPH 2,800 LPH

focus system

Type Phase detection Phase detection
Focus points 9 61
Cross type focus points 1 41
Supports continuous No No

shutter

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

form factor

Size 130 x 100 x 78 mm 152 x 116 x 76 mm
Thickness 78 mm 76 mm
Weight 459 g 950 g
Is weather sealed No Yes

features

Includes a GPS No No
Supports HDR No Yes
WiFi None None
Automatic panorama No No
Create realistic 3D images No No
Image stabilization

video

Rebel T3  vs
EOS 5D Mark III 
Video 1280 x 720 @ 30 fps 1920 x 1080 @ 30 fps
Shoots video in 24p No Yes
Shoots high speed video No No
External mic jack None 3.5mm

display

Type LCD LCD
Size 2.7" 3.2"
Resolution 230 k dots 1,040 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% 100%
Magnification 0.87x 0.71x
Viewfinder size 0.54x 0.71x

performance

Max continuous shooting 3 fps 6 fps
Battery life 700 950
Continuous shooting
6 fps @ 5760 x 3840, JPEG, 65 shots
6 fps @ 5760 x 3840, RAW, 13 shots
3 fps, JPEG
Focus lag 309 ms 120 ms
Shutter lag 113 ms 61 ms
Startup delay 300 ms 500 ms
Canon Rebel T3
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Canon EOS 5D Mark III
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