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Canon 550D vs Sony A9

The Canon EOS 550D (called Canon T2i in some regions) and the Sony Alpha A9 are two digital cameras that were officially introduced, respectively, in February 2010 and April 2017. The 550D is a DSLR, while the A9 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (550D) and a full frame (A9) sensor. The Canon has a resolution of 17.9 megapixels, whereas the Sony provides 24 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Canon 550D
versus
Sony A9
Canon 550D   Sony A9
Digital single lens reflex Mirrorless system camera
Canon EF mount lenses Sony E mount lenses
17.9 MP – APS-C sensor 24 MP – Full Frame sensor
1080/30p Video 4K/30p Video
ISO 100-6,400 (100 - 12,800) ISO 100-51,200 (50 - 204,800)
Optical viewfinder Electronic viewfinder (3686k dots)
3.0" LCD – 1040k dots 3.0" LCD – 1440k dots
Fixed screen (not touch-sensitive) Tilting touchscreen
3.7 shutter flaps per second 20 shutter flaps per second
Lens stabilization onlyIn-body stabilization
not weather sealedWeathersealed body
440 shots per battery charge650 shots per battery charge
129 x 98 x 62 mm, 530 g 127 x 96 x 63 mm, 673 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 550D and the Sony Alpha A9? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

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Body comparison

The physical size and weight of the Canon 550D and the Sony A9 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth dimensions are rounded to the nearest millimeter.

Size Canon 550D vs Sony A9
Compare 550D versus A9 top
Comparison 550D or A9 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A9 is somewhat smaller (4 percent) than the Canon 550D. However, the A9 is markedly heavier (27 percent) than the 550D. It is noteworthy in this context that the A9 is splash and dust-proof, while the 550D does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Canon EF Lens Catalog (550D) and the Sony FE Lens Catalog (A9). Mirrorless cameras, such as the A9, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.

Concerning battery life, the 550D gets 440 shots out of its Canon LP-E8 battery, while the A9 can take 650 images on a single charge of its Sony NP-FZ100 power pack. The power pack in the A9 can be charged via the USB port, which can be very convenient when travelling.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.

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Body Specifications
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
1.
 
Canon 550D 129 mm 98 mm 62 mm 530 g 440 n Feb 2010 EUR 649ebay.com
2.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 EUR 5 299ebay.com
3.
 
Canon 500D 129 mm 98 mm 62 mm 520 g 400 n Mar 2009 EUR 699ebay.com
4.
 
Canon 600D 133 mm 100 mm 80 mm 570 g 440 n Feb 2011 EUR 549ebay.com
5.
 
Canon 650D 133 mm 100 mm 79 mm 575 g 440 n Jun 2012 EUR 799ebay.com
6.
 
Canon 700D 133 mm 100 mm 79 mm 580 g 440 n Mar 2013 EUR 599ebay.com
7.
 
Canon 750D 132 mm 101 mm 78 mm 555 g 440 n Feb 2015 EUR 699ebay.com
8.
 
Canon 760D 132 mm 101 mm 78 mm 565 g 440 n Feb 2015 EUR 749ebay.com
9.
 
Canon 1100D 130 mm 100 mm 78 mm 495 g 700 n Feb 2011 EUR 399ebay.com
10.
 
Canon 1200D 130 mm 100 mm 78 mm 480 g 500 n Feb 2014 EUR 399ebay.com
11.
 
Canon 4000D 129 mm 102 mm 77 mm 436 g 500 n Feb 2018 EUR 399 amazon.com
12.
 
Nikon D5100 128 mm 97 mm 79 mm 560 g 660 n Apr 2011 EUR 699ebay.com
13.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 EUR 2 099ebay.com
14.
 
Sony A7 III 127 mm 96 mm 74 mm 650 g 610 Y Feb 2018 EUR 2 299 amazon.com
15.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 EUR 3 499ebay.com
16.
 
Sony A7R V 131 mm 97 mm 82 mm 723 g 530 Y Oct 2022 EUR 4 499 amazon.com
17.
 
Sony A9 II 129 mm 96 mm 76 mm 678 g 690 Y Oct 2019 EUR 5 399 amazon.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

Any camera decision will obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The 550D was launched at a markedly lower price (by 84 percent) than the A9, which puts it into a different market segment. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.

Sensor comparison

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units in a sensor of the same technological generation. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon 550D features an APS-C sensor and the Sony A9 a full frame sensor. The sensor area in the A9 is 155 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Canon 550D and Sony A9 sensor measures

With 24MP, the A9 offers a higher resolution than the 550D (17.9MP), but the A9 nevertheless has larger individual pixels (pixel pitch of 5.94μm versus 4.31μm for the 550D) due to its larger sensor. Moreover, the A9 is a much more recent model (by 7 years and 2 months) than the 550D, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units.

The resolution advantage of the Sony A9 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A9 for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Canon 550D are 25.9 x 17.3 inches or 65.8 x 43.9 cm for good quality, 20.7 x 13.8 inches or 52.7 x 35.1 cm for very good quality, and 17.3 x 11.5 inches or 43.9 x 29.3 cm for excellent quality prints.

The A9 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon EOS 550D has a native sensitivity range from ISO 100 to ISO 6400, which can be extended to ISO 100-12800. The corresponding ISO settings for the Sony Alpha A9 are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 50-204800.

In terms of underlying technology, the 550D is build around a CMOS sensor, while the A9 uses a Stacked BSI-CMOS imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

550D versus A9 MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. Of the two cameras under consideration, the A9 offers substantially better image quality than the 550D (overall score 26 points higher). The advantage is based on 2.8 bits higher color depth, 1.8 EV in additional dynamic range, and 2.2 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

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Sensor Characteristics
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Canon 550D APS-C 17.9 5184 34561080/30p22.111.578466
2.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792
3.
 
Canon 500D APS-C 15.1 4752 31681080/20p21.711.566363
4.
 
Canon 600D APS-C 17.9 5184 34561080/30p22.111.579365
5.
 
Canon 650D APS-C 17.9 5184 34561080/30p21.711.272262
6.
 
Canon 700D APS-C 17.9 5184 34561080/30p21.711.268161
7.
 
Canon 750D APS-C 24.0 6000 40001080/30p22.712.091971
8.
 
Canon 760D APS-C 24.0 6000 40001080/30p22.612.091570
9.
 
Canon 1100D APS-C 12.2 4272 2848720/30p21.911.075562
10.
 
Canon 1200D APS-C 17.9 5184 34561080/30p21.911.372463
11.
 
Canon 4000D APS-C 17.9 5184 34561080/30p21.911.469563
12.
 
Nikon D5100 APS-C 16.1 4928 32641080/30p23.513.6118380
13.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
14.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096
15.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
16.
 
Sony A7R V Full Frame 60.2 9504 63368k/24p26.514.83187100
17.
 
Sony A9 II Full Frame 24.0 6000 40004K/30p25.014.0343493

Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the A9 provides a better video resolution than the 550D. It can shoot movie footage at 4K/30p, while the Canon is limited to 1080/30p.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the A9 has an electronic viewfinder (3686k dots), while the 550D has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinder in the A9 offers a wider field of view (100%) than the one in the 550D (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the A9 has a higher magnification (0.78x vs 0.54x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Canon 550D and Sony A9 along with similar information for a selection of comparators.

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Core Features
  empty Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Canon 550Doptical n3.0 / 1040 fixed n 1/4000s 3.7/s Y n
2.
 
Sony A93686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
3.
 
Canon 500Doptical n3.0 / 920 fixed n 1/4000s 3.4/s Y n
4.
 
Canon 600Doptical n3.0 / 1040 swivel n 1/4000s 3.7/s Y n
5.
 
Canon 650Doptical n3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
6.
 
Canon 700Doptical n3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
7.
 
Canon 750Doptical n3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
8.
 
Canon 760Doptical Y3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
9.
 
Canon 1100Doptical n2.7 / 230 fixed n 1/4000s 3.0/s Y n
10.
 
Canon 1200Doptical n3.0 / 460 fixed n 1/4000s 3.0/s Y n
11.
 
Canon 4000Doptical n2.7 / 230 fixed n 1/4000s 3.0/s Y n
12.
 
Nikon D5100optical n3.0 / 921 swivel n 1/4000s 4.0/s Y n
13.
 
Sony A7 II2400 n3.0 / 1230 tilting n 1/8000s 5.0/s n Y
14.
 
Sony A7 III2359 n3.0 / 922 tilting Y 1/8000s 10.0/s n Y
15.
 
Sony A7R III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
16.
 
Sony A7R V9440 n3.2 / 2100 full-flex Y 1/8000s 10.0/s n Y
17.
 
Sony A9 II3686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One difference between the cameras concerns the presence of an on-board flash. The 550D has one, while the A9 does not. While the built-in flash of the 550D is not very powerful, it can at times be useful as a fill-in light.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the A9 is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The 550D writes its imaging data to SDXC cards, while the A9 uses SDXC or Memory Stick PRO Duo cards. The A9 features dual card slots, which can be very useful in case a memory card fails. In contrast, the 550D only has one slot. The A9 supports UHS-II cards on its first slot and UHS-I on its second one, while the 550D cannot take advantage of Ultra High Speed SD cards.

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Connectivity comparison

For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Canon EOS 550D and Sony Alpha A9 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon 550DYstereo / -Y-mini2.0---
2.
 
Sony A9Ystereo / monoYYmicro2.0YYY
3.
 
Canon 500DYmono / mono--mini2.0---
4.
 
Canon 600DYmono / monoY-mini2.0---
5.
 
Canon 650DYstereo / monoY-mini2.0---
6.
 
Canon 700DYstereo / monoY-mini2.0---
7.
 
Canon 750DYstereo / monoY-mini2.0YY-
8.
 
Canon 760DYstereo / monoY-mini2.0YY-
9.
 
Canon 1100DYstereo / mono--mini2.0---
10.
 
Canon 1200DYmono / mono--mini2.0---
11.
 
Canon 4000DYmono / mono--mini2.0YY-
12.
 
Nikon D5100Ymono / monoY-mini2.0---
13.
 
Sony A7 IIYstereo / monoYYmicro2.0YY-
14.
 
Sony A7 IIIYstereo / monoYYmicro3.1YYY
15.
 
Sony A7R IIIYstereo / monoYYmicro3.1YYY
16.
 
Sony A7R VYstereo / monoYYfull3.2Y-Y
17.
 
Sony A9 IIYstereo / monoYYmicro3.1YYY

It is notable that the A9 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the 550D does not provide wifi capability.

Studio photographers will appreciate that the Sony A9 (unlike the 550D) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the 550D and the A9 have been discontinued, but can regularly be found used on ebay. The 550D was replaced by the Canon 600D, while the A9 was followed by the Sony A9 II. Further information on the features and operation of the 550D and A9 can be found, respectively, in the Canon 550D Manual (free pdf) or the online Sony A9 Manual.

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Review summary

So how do things add up? Which of the two cameras – the Canon 550D or the Sony A9 – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

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Arguments in favor of the Canon EOS 550D:

  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Less heavy: Is lighter (by 143g or 21 percent) and hence easier to carry around.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced into a lower priced category (84 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in February 2010).

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Advantages of the Sony Alpha A9:

  • More detail: Has more megapixels (24 vs 17.9MP), which boosts linear resolution by 16%.
  • Better image quality: Scores substantially higher (26 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (2.8 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (1.8 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (2.2 stops ISO advantage).
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/30p).
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More complete view: Has a viewfinder with a larger field of view (100% vs 95%).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.54x).
  • More detailed LCD: Has a higher resolution rear screen (1440k vs 1040k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (20 vs 3.7 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Longer lasting: Gets more shots (650 versus 440) out of a single battery charge.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • Faster buffer clearing: Supports Ultra High Speed (UHS-II and UHS-I) SDXC cards.
  • More modern: Reflects 7 years and 2 months of technical progress since the 550D launch.

If the number of relative strengths (bullet points above) is taken as a guide, the A9 is the clear winner of the contest (29 : 5 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera. A professional wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

550D 05:29 A9

How about other alternatives? Do the specifications of the Canon 550D and the Sony A9 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the 550D or the A9. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews

This is why expert reviews are important. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

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Expert Camera Reviews
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Canon 550D..+ +..77/1004/54.5/5 Feb 2010 EUR 649ebay.com
2.
 
Sony A95/5+ +4.8/589/1005/55/5 Apr 2017 EUR 5 299ebay.com
3.
 
Canon 500D..+ +..74/1004.5/54.5/5 Mar 2009 EUR 699ebay.com
4.
 
Canon 600D3/5o..77/1004.5/54.5/5 Feb 2011 EUR 549ebay.com
5.
 
Canon 650D4/5+ +..77/1004.5/54.5/5 Jun 2012 EUR 799ebay.com
6.
 
Canon 700D......76/1004.5/54.5/5 Mar 2013 EUR 599ebay.com
7.
 
Canon 750D5/5....75/1004.5/54.5/5 Feb 2015 EUR 699ebay.com
8.
 
Canon 760D5/5+..77/1004.5/54.5/5 Feb 2015 EUR 749ebay.com
9.
 
Canon 1100D..80/100..69/1004/54.5/5 Feb 2011 EUR 399ebay.com
10.
 
Canon 1200D3/5+....4/54.5/5 Feb 2014 EUR 399ebay.com
11.
 
Canon 4000D2.5/5o3/5..3.5/53.5/5 Feb 2018 EUR 399 amazon.com
12.
 
Nikon D51005/5+ +..76/1004.5/54.5/5 Apr 2011 EUR 699ebay.com
13.
 
Sony A7 II5/5+4/582/1004.5/55/5 Nov 2014 EUR 2 099ebay.com
14.
 
Sony A7 III..+ +4.5/589/1005/55/5 Feb 2018 EUR 2 299 amazon.com
15.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 EUR 3 499ebay.com
16.
 
Sony A7R V5/5+ +4.5/592/100.... Oct 2022 EUR 4 499 amazon.com
17.
 
Sony A9 II....5/590/1005/55/5 Oct 2019 EUR 5 399 amazon.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.

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Other camera comparisons

Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Canon 550D vs Sony A9

    Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.

    Camera Specifications
    Camera Model Canon 550D Sony A9
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Canon EF mount lenses Sony E mount lenses
    Launch Date February 2010 April 2017
    Launch Price USD 699 USD 4,499
    Sensor Specs Canon 550D Sony A9
    Sensor Technology CMOS Stacked BSI-CMOS
    Sensor Format APS-C Sensor Full Frame Sensor
    Sensor Size 22.3 x 14.9 mm 35.6 x 23.8 mm
    Sensor Area 332.27 mm2 847.28 mm2
    Sensor Diagonal 26.8 mm 42.8 mm
    Crop Factor 1.6x 1.0x
    Sensor Resolution 17.9 Megapixels 24 Megapixels
    Image Resolution 5184 x 3456 pixels 6000 x 4000 pixels
    Pixel Pitch 4.31 μm 5.94 μm
    Pixel Density 5.39 MP/cm2 2.83 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/30p Video 4K/30p Video
    ISO Setting 100 - 6,400 ISO 100 - 51,200 ISO
    ISO Boost 100 - 12,800 ISO 50 - 204,800 ISO
    Image Processor DIGIC 4 BIONZ X
    DXO Sensor Quality (score) 66 92
    DXO Color Depth (bits) 22.1 24.9
    DXO Dynamic Range (EV) 11.5 13.3
    DXO Low Light (ISO) 784 3517
    Screen Specs Canon 550D Sony A9
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 95% 100%
    Viewfinder Magnification 0.54x 0.78x
    Viewfinder Resolution 3686k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1040k dots 1440k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Canon 550D Sony A9
    Focus System Phase-detect AF On-Sensor Phase-detect
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 3.7 shutter flaps/s 20 shutter flaps/s
    Shutter Life Expectancy100 000 actuations500 000 actuations
    Electronic Shutterno E-Shutterup to 1/32000s
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDXC cards MS or SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support no Single UHS-II
    Connectivity Specs Canon 550D Sony A9
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI micro HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Canon 550D Sony A9
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Canon LP-E8 Sony NP-FZ100
    Battery Life (CIPA)440 shots per charge650 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 129 x 98 x 62 mm
    (5.1 x 3.9 x 2.4 in)
    127 x 96 x 63 mm
    (5.0 x 3.8 x 2.5 in)
    Camera Weight 530 g (18.7 oz) 673 g (23.7 oz)
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