Canon 550D vs Sony A850
The Canon EOS 550D (called Canon T2i in some regions) and the Sony Alpha A850 are two digital cameras that were announced, respectively, in February 2010 and August 2009. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (550D) and a full frame (A850) sensor. The Canon has a resolution of 17.9 megapixels, whereas the Sony provides 24.4 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 A850? 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 physical size and weight of the Canon 550D and the Sony A850 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. 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 A850 is considerably larger (44 percent) than the Canon 550D. Moreover, the A850 is substantially heavier (69 percent) than the 550D. It is noteworthy in this context that the A850 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 A850 can take 880 images on a single charge of its Sony NP-FM500H power pack.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons 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 A850 | 156 mm | 117 mm | 82 mm | 895 g | 880 | Y | Aug 2009 | 1,999 | ebay.com | |
3. | Canon 4000D | 129 mm | 102 mm | 77 mm | 436 g | 500 | n | Feb 2018 | 399 | amazon.com | |
4. | Canon 750D | 132 mm | 101 mm | 78 mm | 555 g | 440 | n | Feb 2015 | 749 | ebay.com | |
5. | Canon 760D | 132 mm | 101 mm | 78 mm | 565 g | 440 | n | Feb 2015 | 649 | ebay.com | |
6. | Canon 1200D | 130 mm | 100 mm | 78 mm | 480 g | 500 | n | Feb 2014 | 449 | ebay.com | |
7. | Canon 700D | 133 mm | 100 mm | 79 mm | 580 g | 440 | n | Mar 2013 | 649 | ebay.com | |
8. | Canon 650D | 133 mm | 100 mm | 79 mm | 575 g | 440 | n | Jun 2012 | 849 | ebay.com | |
9. | Canon 600D | 133 mm | 100 mm | 80 mm | 570 g | 440 | n | Feb 2011 | 599 | ebay.com | |
10. | Canon 1100D | 130 mm | 100 mm | 78 mm | 495 g | 700 | n | Feb 2011 | 449 | ebay.com | |
11. | Canon 500D | 129 mm | 98 mm | 62 mm | 520 g | 400 | n | Mar 2009 | 799 | ebay.com | |
12. | Nikon D5100 | 128 mm | 97 mm | 79 mm | 560 g | 660 | n | Apr 2011 | 749 | ebay.com | |
13. | Sony A99 II | 143 mm | 104 mm | 76 mm | 849 g | 490 | Y | Sep 2016 | 3,199 | ebay.com | |
14. | Sony A7 II | 127 mm | 96 mm | 60 mm | 599 g | 350 | Y | Nov 2014 | 1,999 | ebay.com | |
15. | Sony A99 | 147 mm | 111 mm | 78 mm | 812 g | 500 | Y | Sep 2012 | 2,799 | ebay.com | |
16. | Sony A77 | 143 mm | 104 mm | 81 mm | 732 g | 470 | Y | Aug 2011 | 1,399 | ebay.com | |
17. | Sony A900 | 156 mm | 117 mm | 82 mm | 895 g | 880 | Y | Sep 2008 | 2,999 | 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 naturally be influenced heavily by the price. 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 65 percent) than the A850, 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 size of the imaging sensor is a crucial determinant of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and 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 associated with larger, more expensive camera bodies and lenses.
Of the two cameras under consideration, the Canon 550D features an APS-C sensor and the Sony A850 a full frame sensor. The sensor area in the A850 is 160 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.
With 24.4MP, the A850 offers a higher resolution than the 550D (17.9MP), but the A850 nevertheless has larger individual pixels (pixel pitch of 5.94μm versus 4.31μm for the 550D) due to its larger sensor. However, the 550D is a somewhat more recent model (by 5 months) than the A850, 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 A850 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A850 for good quality output (200 dots per inch) amounts to 30.2 x 20.2 inches or 76.8 x 51.2 cm, for very good quality (250 dpi) 24.2 x 16.1 inches or 61.4 x 41 cm, and for excellent quality (300 dpi) 20.2 x 13.4 inches or 51.2 x 34.1 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 A850 are ISO 200 to ISO 3200, with the possibility to increase the ISO range to 100-6400.
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 is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). Of the two cameras under consideration, the A850 offers substantially better image quality than the 550D (overall score 13 points higher). The advantage is based on 1.7 bits higher color depth, 0.7 EV in additional dynamic range, and 0.9 stops in additional low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
# | 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 A850 | Full Frame | 24.4 | 6048 | 4032 | none | 23.8 | 12.2 | 1415 | 79 | |
3. | Canon 4000D | APS-C | 17.9 | 5184 | 3456 | 1080/30p | 21.9 | 11.4 | 695 | 63 | |
4. | Canon 750D | APS-C | 24.0 | 6000 | 4000 | 1080/30p | 22.7 | 12.0 | 919 | 71 | |
5. | Canon 760D | APS-C | 24.0 | 6000 | 4000 | 1080/30p | 22.6 | 12.0 | 915 | 70 | |
6. | Canon 1200D | APS-C | 17.9 | 5184 | 3456 | 1080/30p | 21.9 | 11.3 | 724 | 63 | |
7. | Canon 700D | APS-C | 17.9 | 5184 | 3456 | 1080/30p | 21.7 | 11.2 | 681 | 61 | |
8. | Canon 650D | APS-C | 17.9 | 5184 | 3456 | 1080/30p | 21.7 | 11.2 | 722 | 62 | |
9. | Canon 600D | APS-C | 17.9 | 5184 | 3456 | 1080/30p | 22.1 | 11.5 | 793 | 65 | |
10. | Canon 1100D | APS-C | 12.2 | 4272 | 2848 | 720/30p | 21.9 | 11.0 | 755 | 62 | |
11. | Canon 500D | APS-C | 15.1 | 4752 | 3168 | 1080/20p | 21.7 | 11.5 | 663 | 63 | |
12. | Nikon D5100 | APS-C | 16.1 | 4928 | 3264 | 1080/30p | 23.5 | 13.6 | 1183 | 80 | |
13. | Sony A99 II | Full Frame | 42.2 | 7952 | 5304 | 4K/30p | 25.4 | 13.4 | 2317 | 92 | |
14. | Sony A7 II | Full Frame | 24.0 | 6000 | 4000 | 1080/60p | 24.9 | 13.6 | 2449 | 90 | |
15. | Sony A99 | Full Frame | 24.0 | 6000 | 4000 | 1080/60p | 25.0 | 14.0 | 1555 | 89 | |
16. | Sony A77 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 24.0 | 13.2 | 801 | 78 | |
17. | Sony A900 | Full Frame | 24.4 | 6048 | 4032 | none | 23.7 | 12.3 | 1431 | 79 |
Many modern cameras are not only capable of taking still images, but can also record movies. The 550D indeed provides movie recording capabilities, while the A850 does not. The highest resolution format that the 550D can use is 1080/30p.
Feature comparison
Apart from body and sensor, cameras can and do differ across a variety of features. The 550D and the A850 are similar in the sense that both have an optical viewfinder. The latter is useful for getting a clear image for framing even in brightly lit environments. The viewfinder in the A850 offers a wider field of view (98%) 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 A850 has a higher magnification (0.74x vs 0.54x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The following table reports on some other key feature differences and similarities of the Canon 550D, the Sony A850, and comparable 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 A850 | optical | Y | 3.0 / 922 | fixed | n | 1/8000s | 3.0/s | n | Y | |
3. | Canon 4000D | optical | n | 2.7 / 230 | fixed | n | 1/4000s | 3.0/s | Y | n | |
4. | Canon 750D | optical | n | 3.0 / 1040 | swivel | Y | 1/4000s | 5.0/s | Y | n | |
5. | Canon 760D | optical | Y | 3.0 / 1040 | swivel | Y | 1/4000s | 5.0/s | Y | n | |
6. | Canon 1200D | optical | n | 3.0 / 460 | fixed | n | 1/4000s | 3.0/s | Y | n | |
7. | Canon 700D | optical | n | 3.0 / 1040 | swivel | Y | 1/4000s | 5.0/s | Y | n | |
8. | Canon 650D | optical | n | 3.0 / 1040 | swivel | Y | 1/4000s | 5.0/s | Y | n | |
9. | Canon 600D | optical | n | 3.0 / 1040 | swivel | n | 1/4000s | 3.7/s | Y | n | |
10. | Canon 1100D | optical | n | 2.7 / 230 | fixed | n | 1/4000s | 3.0/s | Y | n | |
11. | Canon 500D | optical | n | 3.0 / 920 | fixed | n | 1/4000s | 3.4/s | Y | n | |
12. | Nikon D5100 | optical | n | 3.0 / 921 | swivel | n | 1/4000s | 4.0/s | Y | n | |
13. | Sony A99 II | 2400 | Y | 3.0 / 1229 | full-flex | n | 1/8000s | 12.0/s | n | Y | |
14. | Sony A7 II | 2400 | n | 3.0 / 1230 | tilting | n | 1/8000s | 5.0/s | n | Y | |
15. | Sony A99 | 2359 | Y | 3.0 / 1229 | full-flex | n | 1/8000s | 6.0/s | n | Y | |
16. | Sony A77 | 2359 | Y | 3.0 / 921 | full-flex | n | 1/8000s | 12.0/s | Y | Y | |
17. | Sony A900 | optical | Y | 3.0 / 922 | fixed | n | 1/8000s | 5.0/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 A850 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 550D writes its imaging data to SDXC cards, while the A850 uses Compact Flash or Memory Stick PRO Duo cards. The A850 features dual card slots, which can be very useful in case a memory card fails. In contrast, the 550D only has one slot.
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 A850 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 A850 | Y | - / - | - | - | mini | 2.0 | - | - | - | |
3. | Canon 4000D | Y | mono / mono | - | - | mini | 2.0 | Y | Y | - | |
4. | Canon 750D | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | - | |
5. | Canon 760D | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | - | |
6. | Canon 1200D | Y | mono / mono | - | - | mini | 2.0 | - | - | - | |
7. | Canon 700D | Y | stereo / mono | Y | - | mini | 2.0 | - | - | - | |
8. | Canon 650D | Y | stereo / mono | Y | - | mini | 2.0 | - | - | - | |
9. | Canon 600D | Y | mono / mono | Y | - | mini | 2.0 | - | - | - | |
10. | Canon 1100D | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
11. | Canon 500D | Y | mono / mono | - | - | mini | 2.0 | - | - | - | |
12. | Nikon D5100 | Y | mono / mono | Y | - | mini | 2.0 | - | - | - | |
13. | Sony A99 II | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | Y | |
14. | Sony A7 II | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - | |
15. | Sony A99 | Y | stereo / mono | Y | Y | mini | 2.0 | - | - | - | |
16. | Sony A77 | Y | stereo / mono | Y | - | mini | 2.0 | - | - | - | |
17. | Sony A900 | Y | - / - | - | - | mini | 2.0 | - | - | - |
Studio photographers will appreciate that the Sony A850 (unlike the 550D) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the 550D and the A850 have been discontinued, but can regularly be found used on ebay. The 550D was replaced by the Canon 600D, while the A850 does not have a direct successor. Further information on the features and operation of the 550D and A850 can be found, respectively, in the Canon 550D Manual (free pdf) or the online Sony A850 Manual.
Review summary
So what conclusions can be drawn? Is there a clear favorite between the Canon 550D and the Sony A850? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the Canon EOS 550D:
- Broader imaging potential: Can record not only still images but also 1080/30p movies.
- More detailed LCD: Has a higher resolution rear screen (1040k vs 922k dots).
- Faster burst: Shoots at higher frequency (3.7 vs 3 flaps/sec) to capture the decisive moment.
- More compact: Is smaller (129x98mm vs 156x117mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 365g or 41 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 (65 percent cheaper at launch).
- More modern: Is somewhat more recent (announced 5 months after the A850).
Arguments in favor of the Sony Alpha A850:
- More detail: Has more megapixels (24.4 vs 17.9MP), which boosts linear resolution by 17%.
- Better image quality: Scores substantially higher (13 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (1.7 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (0.7 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (0.9 stops ISO advantage).
- More complete view: Has a viewfinder with a larger field of view (98% vs 95%).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.74x vs 0.54x).
- Easier setting verification: Features a control panel on top to check shooting parameters.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Longer lasting: Gets more shots (880 versus 440) out of a single battery charge.
- 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.
- 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.
- More heavily discounted: Has been on the market for longer (launched in August 2009).
If the count of individual advantages (bullet points above) is taken as a guide, the A850 is the clear winner of the contest (15 : 8 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports 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 A850 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 partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the 550D or the A850. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.
Expert reviews
This is why hands-on reviews by experts are important. 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 A850 | 3/5 | .. | .. | 75/100 | .. | 4.5/5 | Aug 2009 | 1,999 | ebay.com | |
3. | Canon 4000D | 2.5/5 | o | 3/5 | .. | 3.5/5 | 3.5/5 | Feb 2018 | 399 | amazon.com | |
4. | Canon 750D | 5/5 | .. | .. | 75/100 | 4.5/5 | 4.5/5 | Feb 2015 | 749 | ebay.com | |
5. | Canon 760D | 5/5 | + | .. | 77/100 | 4.5/5 | 4.5/5 | Feb 2015 | 649 | ebay.com | |
6. | Canon 1200D | 3/5 | + | .. | .. | 4/5 | 4.5/5 | Feb 2014 | 449 | ebay.com | |
7. | Canon 700D | .. | .. | .. | 76/100 | 4.5/5 | 4.5/5 | Mar 2013 | 649 | ebay.com | |
8. | Canon 650D | 4/5 | + + | .. | 77/100 | 4.5/5 | 4.5/5 | Jun 2012 | 849 | ebay.com | |
9. | Canon 600D | 3/5 | o | .. | 77/100 | 4.5/5 | 4.5/5 | Feb 2011 | 599 | ebay.com | |
10. | Canon 1100D | .. | 80/100 | .. | 69/100 | 4/5 | 4.5/5 | Feb 2011 | 449 | ebay.com | |
11. | Canon 500D | .. | + + | .. | 74/100 | 4.5/5 | 4.5/5 | Mar 2009 | 799 | ebay.com | |
12. | Nikon D5100 | 5/5 | + + | .. | 76/100 | 4.5/5 | 4.5/5 | Apr 2011 | 749 | ebay.com | |
13. | Sony A99 II | .. | .. | 4.5/5 | 85/100 | 4.5/5 | 4.5/5 | Sep 2016 | 3,199 | 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 A99 | 5/5 | .. | .. | 84/100 | 4.5/5 | 4.5/5 | Sep 2012 | 2,799 | ebay.com | |
16. | Sony A77 | 5/5 | 91/100 | .. | 81/100 | .. | 5/5 | Aug 2011 | 1,399 | ebay.com | |
17. | Sony A900 | .. | + + | .. | + + | 4.5/5 | 5/5 | Sep 2008 | 2,999 | ebay.com | |
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. 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 make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
Specifications: Canon 550D vs Sony A850
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 A850 |
---|---|---|
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 2009 |
Launch Price | USD 699 | USD 1,999 |
Sensor Specs | Canon 550D | Sony A850 |
Sensor Technology | CMOS | CMOS |
Sensor Format | APS-C Sensor | Full Frame Sensor |
Sensor Size | 22.3 x 14.9 mm | 35.9 x 24.0 mm |
Sensor Area | 332.27 mm2 | 861.6 mm2 |
Sensor Diagonal | 26.8 mm | 43.2 mm |
Crop Factor | 1.6x | 1.0x |
Sensor Resolution | 17.9 Megapixels | 24.4 Megapixels |
Image Resolution | 5184 x 3456 pixels | 6048 x 4032 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 | no Video |
ISO Setting | 100 - 6,400 ISO | 200 - 3,200 ISO |
ISO Boost | 100 - 12,800 ISO | 100 - 6,400 ISO |
Image Processor | DIGIC 4 | BIONZ |
DXO Sensor Quality (score) | 66 | 79 |
DXO Color Depth (bits) | 22.1 | 23.8 |
DXO Dynamic Range (EV) | 11.5 | 12.2 |
DXO Low Light (ISO) | 784 | 1415 |
Screen Specs | Canon 550D | Sony A850 |
Viewfinder Type | Optical viewfinder | Optical viewfinder |
Viewfinder Field of View | 95% | 98% |
Viewfinder Magnification | 0.54x | 0.74x |
Top-Level Screen | no Top Display | Control Panel |
LCD Framing | Live View | |
Rear LCD Size | 3.0inch | 3.0inch |
LCD Resolution | 1040k dots | 922k dots |
LCD Attachment | Fixed screen | Fixed screen |
Shooting Specs | Canon 550D | Sony A850 |
Focus System | Phase-detect AF | Phase-detect AF |
Continuous Shooting | 3.7 shutter flaps/s | 3 shutter flaps/s |
Image Stabilization | Lens stabilization only | In-body stabilization |
Fill Flash | Built-in Flash | no On-Board Flash |
Storage Medium | SDXC cards | CF or MS cards |
Single or Dual Card Slots | Single card slot | Dual card slots |
Connectivity Specs | Canon 550D | Sony A850 |
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 | no MIC socket |
Wifi Support | no Wifi | no Wifi |
Body Specs | Canon 550D | Sony A850 |
Environmental Sealing | not weather sealed | Weathersealed body |
Battery Type | Canon LP-E8 | Sony NP-FM500H |
Battery Life (CIPA) | 440 shots per charge | 880 shots per charge |
Body Dimensions |
129 x 98 x 62 mm (5.1 x 3.9 x 2.4 in) |
156 x 117 x 82 mm (6.1 x 4.6 x 3.2 in) |
Camera Weight | 530 g (18.7 oz) | 895 g (31.6 oz) |
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