Canon 550D vs Sony A77
The Canon EOS 550D (called Canon T2i in some regions) and the Sony Alpha SLT-A77 are two digital cameras that were announced, respectively, in February 2010 and August 2011. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C 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.
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 550D and the Sony Alpha SLT-A77? 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.
Body comparison
The side-by-side display below illustrates the physical size and weight of the Canon 550D and the Sony A77. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth measures are rounded to the nearest millimeter.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A77 is notably larger (18 percent) than the Canon 550D. Moreover, the A77 is substantially heavier (38 percent) than the 550D. It is noteworthy in this context that the A77 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. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.
Concerning battery life, the 550D gets 440 shots out of its Canon LP-E8 battery, while the A77 can take 470 images on a single charge of its Sony NP-FM500H power pack.
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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.
Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price (USD) |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon 550D | 129 mm | 98 mm | 62 mm | 530 g | 440 | n | Feb 2010 | 699 | ebay.com | |
2. | Sony A77 | 143 mm | 104 mm | 81 mm | 732 g | 470 | Y | Aug 2011 | 1,399 | ebay.com | |
3. | Canon 500D | 129 mm | 98 mm | 62 mm | 520 g | 400 | n | Mar 2009 | 799 | ebay.com | |
4. | Canon 600D | 133 mm | 100 mm | 80 mm | 570 g | 440 | n | Feb 2011 | 599 | ebay.com | |
5. | Canon 650D | 133 mm | 100 mm | 79 mm | 575 g | 440 | n | Jun 2012 | 849 | ebay.com | |
6. | Canon 700D | 133 mm | 100 mm | 79 mm | 580 g | 440 | n | Mar 2013 | 649 | ebay.com | |
7. | Canon 750D | 132 mm | 101 mm | 78 mm | 555 g | 440 | n | Feb 2015 | 749 | ebay.com | |
8. | Canon 760D | 132 mm | 101 mm | 78 mm | 565 g | 440 | n | Feb 2015 | 649 | ebay.com | |
9. | Canon 1100D | 130 mm | 100 mm | 78 mm | 495 g | 700 | n | Feb 2011 | 449 | ebay.com | |
10. | Canon 1200D | 130 mm | 100 mm | 78 mm | 480 g | 500 | n | Feb 2014 | 449 | ebay.com | |
11. | Canon 4000D | 129 mm | 102 mm | 77 mm | 436 g | 500 | n | Feb 2018 | 399 | amazon.com | |
12. | Nikon D5100 | 128 mm | 97 mm | 79 mm | 560 g | 660 | n | Apr 2011 | 749 | ebay.com | |
13. | Pentax K-3 | 131 mm | 100 mm | 77 mm | 800 g | 560 | Y | Oct 2013 | 1,299 | ebay.com | |
14. | Sony A7 II | 127 mm | 96 mm | 60 mm | 599 g | 350 | Y | Nov 2014 | 1,999 | ebay.com | |
15. | Sony A77 II | 143 mm | 104 mm | 81 mm | 647 g | 480 | Y | May 2014 | 1,199 | ebay.com | |
16. | Sony A99 | 147 mm | 111 mm | 78 mm | 812 g | 500 | Y | Sep 2012 | 2,799 | ebay.com | |
17. | Sony A6500 | 120 mm | 67 mm | 53 mm | 453 g | 350 | Y | Oct 2016 | 1,399 | ebay.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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The 550D was launched at a markedly lower price (by 50 percent) than the A77, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
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 generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels in a sensor of the same technological generation. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.
Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the A77 is 11 percent bigger. As a result of these sensor size differences, the cameras have format factors, respectively, of 1.6 (550D) and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 24MP, the A77 offers a higher resolution than the 550D (17.9MP), but the A77 has smaller individual pixels (pixel pitch of 3.91μm versus 4.31μm for the 550D). Yet, the A77 is a somewhat more recent model (by 1 year and 6 months) than the 550D, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units.
The resolution advantage of the Sony A77 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A77 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 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 SLT-A77 are ISO 100 to ISO 16000, with the possibility to increase the ISO range to 50-25600.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
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 A77 offers substantially better image quality than the 550D (overall score 12 points higher). The advantage is based on 1.9 bits higher color depth, 1.7 EV in additional dynamic range, and -0 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
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 | 3456 | 1080/30p | 22.1 | 11.5 | 784 | 66 | |
2. | Sony A77 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 24.0 | 13.2 | 801 | 78 | |
3. | Canon 500D | APS-C | 15.1 | 4752 | 3168 | 1080/20p | 21.7 | 11.5 | 663 | 63 | |
4. | Canon 600D | APS-C | 17.9 | 5184 | 3456 | 1080/30p | 22.1 | 11.5 | 793 | 65 | |
5. | Canon 650D | APS-C | 17.9 | 5184 | 3456 | 1080/30p | 21.7 | 11.2 | 722 | 62 | |
6. | Canon 700D | APS-C | 17.9 | 5184 | 3456 | 1080/30p | 21.7 | 11.2 | 681 | 61 | |
7. | Canon 750D | APS-C | 24.0 | 6000 | 4000 | 1080/30p | 22.7 | 12.0 | 919 | 71 | |
8. | Canon 760D | APS-C | 24.0 | 6000 | 4000 | 1080/30p | 22.6 | 12.0 | 915 | 70 | |
9. | Canon 1100D | APS-C | 12.2 | 4272 | 2848 | 720/30p | 21.9 | 11.0 | 755 | 62 | |
10. | Canon 1200D | APS-C | 17.9 | 5184 | 3456 | 1080/30p | 21.9 | 11.3 | 724 | 63 | |
11. | Canon 4000D | APS-C | 17.9 | 5184 | 3456 | 1080/30p | 21.9 | 11.4 | 695 | 63 | |
12. | Nikon D5100 | APS-C | 16.1 | 4928 | 3264 | 1080/30p | 23.5 | 13.6 | 1183 | 80 | |
13. | Pentax K-3 | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.7 | 13.4 | 1216 | 80 | |
14. | Sony A7 II | Full Frame | 24.0 | 6000 | 4000 | 1080/60p | 24.9 | 13.6 | 2449 | 90 | |
15. | Sony A77 II | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 24.4 | 13.4 | 1013 | 82 | |
16. | Sony A99 | Full Frame | 24.0 | 6000 | 4000 | 1080/60p | 25.0 | 14.0 | 1555 | 89 | |
17. | Sony A6500 | APS-C | 24.0 | 6000 | 4000 | 4K/30p | 24.5 | 13.7 | 1405 | 85 |
Many modern cameras are not only capable of taking still images, but can also record movies. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the A77 provides a faster frame rate than the 550D. It can shoot movie footage at 1080/60p, while the Canon is limited to 1080/30p.
Feature comparison
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the A77 has an electronic viewfinder (2359k 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 A77 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 A77 has a higher magnification (0.73x vs 0.54x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Canon 550D and Sony A77 in connection with corresponding information for a sample of similar cameras.
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 550D | optical | n | 3.0 / 1040 | fixed | n | 1/4000s | 3.7/s | Y | n | |
2. | Sony A77 | 2359 | Y | 3.0 / 921 | full-flex | n | 1/8000s | 12.0/s | Y | Y | |
3. | Canon 500D | optical | n | 3.0 / 920 | fixed | n | 1/4000s | 3.4/s | Y | n | |
4. | Canon 600D | optical | n | 3.0 / 1040 | swivel | n | 1/4000s | 3.7/s | Y | n | |
5. | Canon 650D | optical | n | 3.0 / 1040 | swivel | Y | 1/4000s | 5.0/s | Y | n | |
6. | Canon 700D | optical | n | 3.0 / 1040 | swivel | Y | 1/4000s | 5.0/s | Y | n | |
7. | Canon 750D | optical | n | 3.0 / 1040 | swivel | Y | 1/4000s | 5.0/s | Y | n | |
8. | Canon 760D | optical | Y | 3.0 / 1040 | swivel | Y | 1/4000s | 5.0/s | Y | n | |
9. | Canon 1100D | optical | n | 2.7 / 230 | fixed | n | 1/4000s | 3.0/s | Y | n | |
10. | Canon 1200D | optical | n | 3.0 / 460 | fixed | n | 1/4000s | 3.0/s | Y | n | |
11. | Canon 4000D | optical | n | 2.7 / 230 | fixed | n | 1/4000s | 3.0/s | Y | n | |
12. | Nikon D5100 | optical | n | 3.0 / 921 | swivel | n | 1/4000s | 4.0/s | Y | n | |
13. | Pentax K-3 | optical | Y | 3.2 / 1037 | fixed | n | 1/8000s | 8.3/s | Y | Y | |
14. | Sony A7 II | 2400 | n | 3.0 / 1230 | tilting | n | 1/8000s | 5.0/s | n | Y | |
15. | Sony A77 II | 2359 | Y | 3.0 / 1229 | full-flex | n | 1/8000s | 12.0/s | Y | Y | |
16. | Sony A99 | 2359 | Y | 3.0 / 1229 | full-flex | n | 1/8000s | 6.0/s | n | Y | |
17. | Sony A6500 | 2359 | n | 3.0 / 922 | tilting | Y | 1/4000s | 11.0/s | Y | Y | |
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one. |
One feature that differentiates the A77 and the 550D is in-body image stabilization (IBIS). The A77 reduces the risk of handshake-induced blur with all attached lenses, while the 550D offers no blur reduction with lenses that themselves do not provide optical image stabilization.
The A77 has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the 550D does not have a selfie-screen.The 550D writes its imaging data to SDXC cards, while the A77 uses SDXC or Memory Stick PRO Duo cards. The A77 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the 550D cannot take advantage of Ultra High Speed SD cards.
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 SLT-A77 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Camera Model |
Hotshoe Port |
Internal Mic / Speaker |
Microphone Port |
Headphone Port |
HDMI Port |
USB Port |
WiFi Support |
NFC Support |
Bluetooth Support |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon 550D | Y | stereo / - | Y | - | mini | 2.0 | - | - | - | |
2. | Sony A77 | Y | stereo / mono | Y | - | mini | 2.0 | - | - | - | |
3. | Canon 500D | Y | mono / mono | - | - | mini | 2.0 | - | - | - | |
4. | Canon 600D | Y | mono / mono | Y | - | mini | 2.0 | - | - | - | |
5. | Canon 650D | Y | stereo / mono | Y | - | mini | 2.0 | - | - | - | |
6. | Canon 700D | Y | stereo / mono | Y | - | mini | 2.0 | - | - | - | |
7. | Canon 750D | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | - | |
8. | Canon 760D | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | - | |
9. | Canon 1100D | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
10. | Canon 1200D | Y | mono / mono | - | - | mini | 2.0 | - | - | - | |
11. | Canon 4000D | Y | mono / mono | - | - | mini | 2.0 | Y | Y | - | |
12. | Nikon D5100 | Y | mono / mono | Y | - | mini | 2.0 | - | - | - | |
13. | Pentax K-3 | Y | mono / mono | Y | Y | mini | 3.0 | - | - | - | |
14. | Sony A7 II | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - | |
15. | Sony A77 II | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | - | |
16. | Sony A99 | Y | stereo / mono | Y | Y | mini | 2.0 | - | - | - | |
17. | Sony A6500 | Y | stereo / mono | Y | - | micro | 2.0 | Y | Y | - |
Studio photographers will appreciate that the Sony A77 (unlike the 550D) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Travel and landscape photographers will find it useful that the A77 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.
Both the 550D and the A77 have been discontinued, but can regularly be found used on ebay. The 550D was replaced by the Canon 600D, while the A77 was followed by the Sony A77 II. Further information on the features and operation of the 550D and A77 can be found, respectively, in the Canon 550D Manual (free pdf) or the online Sony A77 Manual.
Review summary
So how do things add up? Is there a clear favorite between the Canon 550D and the Sony A77? Which camera is better? The listing below highlights the relative strengths of the two models.
Reasons to prefer the Canon EOS 550D:
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- More detailed LCD: Has a higher resolution rear screen (1040k vs 921k dots).
- More compact: Is smaller (129x98mm vs 143x104mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 202g or 28 percent) and hence easier to carry around.
- More affordable: Was introduced into a lower priced category (50 percent cheaper at launch).
- More heavily discounted: Has been on the market for longer (launched in February 2010).
Advantages of the Sony Alpha SLT-A77:
- More detail: Has more megapixels (24 vs 17.9MP), which boosts linear resolution by 16%.
- Better image quality: Scores substantially higher (12 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (1.9 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (1.7 EV of extra DR).
- Better video: Provides higher movie framerates (1080/60p versus 1080/30p).
- 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 (0.73x vs 0.54x).
- Easier setting verification: Features a control panel on top to check shooting parameters.
- More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (12 vs 3.7 flaps/sec) to capture the decisive moment.
- 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.
- Easier geotagging: Features an internal GPS sensor to log localization data.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
- More modern: Was introduced somewhat (1 year and 6 months) more recently.
If the number of relative strengths (bullet points above) is taken as a guide, the A77 is the clear winner of the contest (19 : 6 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. 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.
How about other alternatives? Do the specifications of the Canon 550D and the Sony A77 place the cameras among the top in their class? Find out in the latest Best DSLR Camera listing whether the two cameras rank among the cream of the crop.
In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains incomplete and does no justice, for example, to the way the 550D or the A77 perform in practice. 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 where reviews by experts come in. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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.
Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price (USD) |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon 550D | .. | + + | .. | 77/100 | 4/5 | 4.5/5 | Feb 2010 | 699 | ebay.com | |
2. | Sony A77 | 5/5 | 91/100 | .. | 81/100 | .. | 5/5 | Aug 2011 | 1,399 | ebay.com | |
3. | Canon 500D | .. | + + | .. | 74/100 | 4.5/5 | 4.5/5 | Mar 2009 | 799 | ebay.com | |
4. | Canon 600D | 3/5 | o | .. | 77/100 | 4.5/5 | 4.5/5 | Feb 2011 | 599 | ebay.com | |
5. | Canon 650D | 4/5 | + + | .. | 77/100 | 4.5/5 | 4.5/5 | Jun 2012 | 849 | ebay.com | |
6. | Canon 700D | .. | .. | .. | 76/100 | 4.5/5 | 4.5/5 | Mar 2013 | 649 | ebay.com | |
7. | Canon 750D | 5/5 | .. | .. | 75/100 | 4.5/5 | 4.5/5 | Feb 2015 | 749 | ebay.com | |
8. | Canon 760D | 5/5 | + | .. | 77/100 | 4.5/5 | 4.5/5 | Feb 2015 | 649 | ebay.com | |
9. | Canon 1100D | .. | 80/100 | .. | 69/100 | 4/5 | 4.5/5 | Feb 2011 | 449 | ebay.com | |
10. | Canon 1200D | 3/5 | + | .. | .. | 4/5 | 4.5/5 | Feb 2014 | 449 | ebay.com | |
11. | Canon 4000D | 2.5/5 | o | 3/5 | .. | 3.5/5 | 3.5/5 | Feb 2018 | 399 | amazon.com | |
12. | Nikon D5100 | 5/5 | + + | .. | 76/100 | 4.5/5 | 4.5/5 | Apr 2011 | 749 | ebay.com | |
13. | Pentax K-3 | 4/5 | .. | .. | 83/100 | 5/5 | 5/5 | Oct 2013 | 1,299 | ebay.com | |
14. | Sony A7 II | 5/5 | + | 4/5 | 82/100 | 4.5/5 | 5/5 | Nov 2014 | 1,999 | ebay.com | |
15. | Sony A77 II | 4/5 | .. | .. | 80/100 | 4.5/5 | 5/5 | May 2014 | 1,199 | ebay.com | |
16. | Sony A99 | 5/5 | .. | .. | 84/100 | 4.5/5 | 4.5/5 | Sep 2012 | 2,799 | ebay.com | |
17. | Sony A6500 | 5/5 | + + | 3.5/5 | 85/100 | 4.5/5 | 4.5/5 | Oct 2016 | 1,399 | ebay.com | |
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
The above review scores should be interpreted with care, though. The assessments were made in relation to similar cameras of the same technological generation. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.
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. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
- Canon 550D vs Canon 60D
- Canon 550D vs Canon T5i
- Canon 550D vs Leica CL
- Canon 550D vs Leica V-LUX Typ 114
- Canon 550D vs Panasonic GH1
- Canon 550D vs Pentax KP
- Canon T7i vs Sony A77
- Fujifilm X-T5 vs Sony A77
- Hasselblad X2D 100C vs Sony A77
- Olympus E-M10 III vs Sony A77
- Sony A77 vs Sony HX99
- Sony A77 vs Sony NEX-7
Specifications: Canon 550D vs Sony A77
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 Model | Canon 550D | Sony A77 |
---|---|---|
Camera Type | Digital single lens reflex | Digital single lens reflex |
Camera Lens | Canon EF mount lenses | Sony A mount lenses |
Launch Date | February 2010 | August 2011 |
Launch Price | USD 699 | USD 1,399 |
Sensor Specs | Canon 550D | Sony A77 |
Sensor Technology | CMOS | CMOS |
Sensor Format | APS-C Sensor | APS-C Sensor |
Sensor Size | 22.3 x 14.9 mm | 23.5 x 15.6 mm |
Sensor Area | 332.27 mm2 | 366.6 mm2 |
Sensor Diagonal | 26.8 mm | 28.2 mm |
Crop Factor | 1.6x | 1.5x |
Sensor Resolution | 17.9 Megapixels | 24 Megapixels |
Image Resolution | 5184 x 3456 pixels | 6000 x 4000 pixels |
Pixel Pitch | 4.31 μm | 3.91 μm |
Pixel Density | 5.39 MP/cm2 | 6.55 MP/cm2 |
Moiré control | Anti-Alias filter | Anti-Alias filter |
Movie Capability | 1080/30p Video | 1080/60p Video |
ISO Setting | 100 - 6,400 ISO | 100 - 16,000 ISO |
ISO Boost | 100 - 12,800 ISO | 50 - 25,600 ISO |
Image Processor | DIGIC 4 | BIONZ X |
DXO Sensor Quality (score) | 66 | 78 |
DXO Color Depth (bits) | 22.1 | 24.0 |
DXO Dynamic Range (EV) | 11.5 | 13.2 |
DXO Low Light (ISO) | 784 | 801 |
Screen Specs | Canon 550D | Sony A77 |
Viewfinder Type | Optical viewfinder | Electronic viewfinder |
Viewfinder Field of View | 95% | 100% |
Viewfinder Magnification | 0.54x | 0.73x |
Viewfinder Resolution | 2359k dots | |
Top-Level Screen | no Top Display | Control Panel |
LCD Framing | Live View | Live View |
Rear LCD Size | 3.0inch | 3.0inch |
LCD Resolution | 1040k dots | 921k dots |
LCD Attachment | Fixed screen | Fully flexible screen |
Shooting Specs | Canon 550D | Sony A77 |
Focus System | Phase-detect AF | Phase-detect AF |
Manual Focusing Aid | no Peaking Feature | Focus Peaking |
Max Shutter Speed (mechanical) | 1/4000s | 1/8000s |
Continuous Shooting | 3.7 shutter flaps/s | 12 shutter flaps/s |
Shutter Life Expectancy | 100 000 actuations | 150 000 actuations |
Image Stabilization | Lens stabilization only | In-body stabilization |
Fill Flash | Built-in Flash | Built-in Flash |
Storage Medium | SDXC cards | MS or SDXC cards |
Single or Dual Card Slots | Single card slot | Single card slot |
UHS card support | no | UHS-I |
Connectivity Specs | Canon 550D | Sony A77 |
External Flash | Hotshoe | Hotshoe |
Studio Flash | no PC Sync | PC Sync socket |
USB Connector | USB 2.0 | USB 2.0 |
HDMI Port | mini HDMI | mini HDMI |
Microphone Port | External MIC port | External MIC port |
Wifi Support | no Wifi | no Wifi |
Geotagging | no internal GPS | GPS built-in |
Body Specs | Canon 550D | Sony A77 |
Environmental Sealing | not weather sealed | Weathersealed body |
Battery Type | Canon LP-E8 | Sony NP-FM500H |
Battery Life (CIPA) | 440 shots per charge | 470 shots per charge |
Body Dimensions |
129 x 98 x 62 mm (5.1 x 3.9 x 2.4 in) |
143 x 104 x 81 mm (5.6 x 4.1 x 3.2 in) |
Camera Weight | 530 g (18.7 oz) | 732 g (25.8 oz) |
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