Camera Rocket Review Our evaluation of 550D vs 50D

Image Quality

RAW image quality independent of lens

EOS 550D
9.5
EOS 50D
9.3
DxOMark Low light, DxOMark Color depth and DxOMark Dynamic range

Focusing

How fast and easily does the camera nail focus

EOS 550D
6.5
EOS 50D
8.3
Focus lag, cross type focus points and focus points

Responsiveness

How much delay is there between you and your photo?

EOS 550D
8.4
EOS 50D
9.4
Focus lag, continuous shooting and Startup delay

Reviews

What do the experts think?

EOS 550D
9.2
EOS 50D
9.3
Reviews from techradar.com, 1001noisycameras.com, trustedreviews.com and 4 more

No winner declared

Too close to call

Benchmarks Real world tests of EOS 550D vs 50D

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

EOS 550D
784 ISO
EOS 50D
696 ISO

Resolution Results from photos of standard resolution charts

EOS 550D
2,100 LPH
EOS 50D
1,800 LPH

Focus lag Delay between fully pressing shutter to image capture

EOS 550D
252 ms
EOS 50D
131 ms

Shutter lag Delay to take a photo when prefocused

EOS 550D
96 ms
EOS 50D
63 ms

Startup delay Delay from power on to first photo

EOS 550D
400 ms
EOS 50D
300 ms

Continuous shooting Delay between fully pressing shutter to image capture

EOS 550D
3.7 fps
EOS 50D
6.3 fps

Features Key features of the EOS 550D  vs 50D 

Megapixels Maximum resolution images are captured at

EOS 550D
17.9 MP
EOS 50D
15.1 MP

Max ISO Maximum light sensitivity of the sensor

EOS 550D
12,800 ISO
EOS 50D
12,800 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

EOS 550D
0.54x
EOS 50D
0.59x

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

EOS 550D
18.5 microns
EOS 50D
22.1 microns

Reviews Word on the street

EOS 550D  vs 50D 

8.0
9.0
The new sensor is coupled with Canon's latest DIGIC 4 processor, which features 14-bit image processing, producing greater colour depth and smoother tonal variations.
EOS 50D

7.8
7.8
The camera also delivers the best video capture quality I've seen in a sub-$1,000 dSLR-subject to the inescapable limitations the technology, like unusable autofocus-with good exposure, sharpness, minimal artifacts, and excellent audio.
EOS 550D

Overall

8.4 Out of 10
8.6 Out of 10

Specifications Full list of technical specs

sensor

EOS 550D  vs
50D 
Type CMOS CMOS
Megapixels 17.9 MP 15.1 MP
Resolution 5184 x 3456 4752 x 3168
Size APS-C APS-C
Area 22.3 x 14.9 mm 22.3 x 14.9 mm
Crop factor 1.6x 1.6x
Pixel size 18.5 microns 22.1 microns
Light sensitivity 100 ISO to 6,400 ISO 100 ISO to 3,200 ISO
Light sensitivity (Boost) 6,400 ISO to 12,800 ISO 6,400 ISO to 12,800 ISO
Codecs
RAW
JPEG
Self cleaning sensor Yes Yes
Tested vertical resolution 2,100 LPH 1,800 LPH
Tested horizontal resolution 2,100 LPH 1,800 LPH

focus system

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

shutter

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

form factor

Size 129 x 98 x 62 mm 146 x 108 x 74 mm
Thickness 62 mm 74 mm
Weight 530 g 822 g
Is weather sealed No Yes

features

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

video

EOS 550D  vs
50D 
Video 1920 x 1080 @ 30 fps None
Shoots video in 24p Yes N/A
Shoots high speed video No N/A
External mic jack 3.5mm N/A
Autofocus while shooting video Manual N/A
Autofocus type N/A N/A
Autofocus supports continuous N/A N/A

display

Type LCD LCD
Size 3" 3"
Resolution 1,040 k dots 920 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 3.7 fps 6.3 fps
Battery life 440 640
Continuous shooting
6.3 fps, JPEG
3.7 fps, JPEG
Focus lag 252 ms 131 ms
Shutter lag 96 ms 63 ms
Startup delay 400 ms 300 ms
Canon EOS 550D
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Canon EOS 50D
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