Canon T7 vs Sony A850
The Canon EOS Rebel T7 (called Canon 2000D in some regions) and the Sony Alpha A850 are two digital cameras that were announced, respectively, in February 2018 and August 2009. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (T7) and a full frame (A850) sensor. The Canon has a resolution of 24 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 Rebel T7 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.
An illustration of the physical size and weight of the Canon T7 and the Sony A850 is provided 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 notably larger (40 percent) than the Canon T7. Moreover, the A850 is substantially heavier (88 percent) than the T7. It is noteworthy in this context that the A850 is splash and dust-proof, while the T7 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.
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.
|1.||Canon T7||129 mm||101 mm||78 mm||475 g||500||n||Feb 2018||449|
|2.||Sony A850||156 mm||117 mm||82 mm||895 g||880||Y||Aug 2009||1,999|
|3.||Canon SL3||122 mm||93 mm||70 mm||449 g||1070||n||Apr 2019||599|
|4.||Canon T100||129 mm||102 mm||77 mm||436 g||500||n||Feb 2018||399|
|5.||Canon 77D||131 mm||100 mm||76 mm||540 g||600||n||Feb 2017||899|
|6.||Canon SL2||122 mm||93 mm||70 mm||453 g||650||n||Jun 2017||549|
|7.||Canon T7i||131 mm||100 mm||76 mm||532 g||600||n||Feb 2017||749|
|8.||Canon T6||129 mm||101 mm||78 mm||485 g||500||n||Mar 2016||449|
|9.||Canon T6i||132 mm||101 mm||78 mm||555 g||440||n||Feb 2015||749|
|10.||Canon T6s||132 mm||101 mm||78 mm||565 g||440||n||Feb 2015||649|
|11.||Canon T5||130 mm||100 mm||78 mm||480 g||500||n||Feb 2014||449|
|12.||Canon T3||130 mm||100 mm||78 mm||495 g||700||n||Feb 2011||449|
|13.||Sony A99 II||143 mm||104 mm||76 mm||849 g||490||Y||Sep 2016||3,199|
|14.||Sony A7 II||127 mm||96 mm||60 mm||599 g||350||Y||Nov 2014||1,999|
|15.||Sony A99||147 mm||111 mm||78 mm||812 g||500||Y||Sep 2012||2,799|
|16.||Sony A77||143 mm||104 mm||81 mm||732 g||470||Y||Aug 2011||1,399|
|17.||Sony A900||156 mm||117 mm||82 mm||895 g||880||Y||Sep 2008||2,999|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
The price is, of course, an important factor in any camera decision. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The T7 was launched at a markedly lower price (by 78 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.
The size of the imaging sensor is a crucial determinant 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. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the 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 T7 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.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors.
With 24.4MP, the A850 offers a higher resolution than the T7 (24MP), but the A850 nevertheless has larger individual pixels (pixel pitch of 5.94μm versus 3.72μm for the T7) due to its larger sensor. However, the T7 is a much more recent model (by 8 years and 6 months) than the A850, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units.
The Canon EOS Rebel T7 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.
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
| DXO |
|2.||Sony A850||Full Frame||24.4||6048||4032||none||23.8||12.2||1415||79|
|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|
|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 also of capturing video footage. The T7 indeed provides movie recording capabilities, while the A850 does not. The highest resolution format that the T7 can use is 1080/30p.
Apart from body and sensor, cameras can and do differ across a range of features. The T7 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 T7 (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 0.50x), 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 T7, the Sony A850, and comparable cameras.
|13.||Sony A99 II||2400||Y||3.0||1229||full-flex||n||1/8000s||12.0||n||Y|
|14.||Sony A7 II||2400||n||3.0||1230||tilting||n||1/8000s||5.0||n||Y|
One difference between the cameras concerns the presence of an on-board flash. The T7 has one, while the A850 does not. While the built-in flash of the T7 is not very powerful, it can at times be useful as a fill-in light.
The T7 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 T7 only has one slot.
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 Rebel T7 and Sony Alpha A850 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|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||-|
It is notable that the T7 offers wifi support, while the A850 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.
Studio photographers will appreciate that the Sony A850 (unlike the T7) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
The T7 is a recent model that features in the current product line-up of Canon. In contrast, the A850 has been discontinued (but can be found pre-owned on eBay). There has not been a direct replacement model for the A850 from Sony. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Sony websites.
So how do things add up? Which of the two cameras – the Canon T7 or the Sony A850 – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.
Arguments in favor of the Canon EOS Rebel T7:
- Broader imaging potential: Can record not only still images but also 1080/30p movies.
- More compact: Is smaller (129x101mm vs 156x117mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 420g or 47 percent) and hence easier to carry around.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- 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.
- More affordable: Was introduced into a lower priced category (78 percent cheaper at launch).
- More modern: Reflects 8 years and 6 months of technical progress since the A850 launch.
Reasons to prefer the Sony Alpha A850:
- 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 0.50x).
- 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 500) 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 around for much longer (launched in August 2009).
If the count of relative strengths (bullet points above) is taken as a measure, the A850 emerges as the winner of the match-up (10 : 8 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 T7 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 incomplete and does no justice, for example, to the way the T7 or the A850 perform in practice. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.
This is why expert reviews are important. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (amateurphotographer [AP], cameralabs [CL], 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.
|1.||Canon T7||..||o||..||3.5/5||3.5/5||Feb 2018||449|
|2.||Sony A850||3/5||..||75/100||..||4.5/5||Aug 2009||1,999|
|3.||Canon SL3||..||o||79/100||4/5||4/5||Apr 2019||599|
|4.||Canon T100||..||o||..||3.5/5||3.5/5||Feb 2018||399|
|5.||Canon 77D||4.5/5||..||82/100||4.5/5||4/5||Feb 2017||899|
|6.||Canon SL2||4/5||+ +||78/100||4.5/5||4.5/5||Jun 2017||549|
|7.||Canon T7i||4.5/5||..||80/100||4.5/5||4/5||Feb 2017||749|
|8.||Canon T6||4/5||o||73/100||4/5||4/5||Mar 2016||449|
|9.||Canon T6i||5/5||..||75/100||4.5/5||4.5/5||Feb 2015||749|
|10.||Canon T6s||5/5||+||77/100||4.5/5||4.5/5||Feb 2015||649|
|11.||Canon T5||3/5||+||..||4/5||4.5/5||Feb 2014||449|
|12.||Canon T3||..||80/100||69/100||4/5||4.5/5||Feb 2011||449|
|13.||Sony A99 II||..||..||85/100||4.5/5||4.5/5||Sep 2016||3,199|
|14.||Sony A7 II||5/5||+||82/100||4.5/5||5/5||Nov 2014||1,999|
|15.||Sony A99||5/5||..||84/100||4.5/5||4.5/5||Sep 2012||2,799|
|16.||Sony A77||5/5||91/100||81/100||..||5/5||Aug 2011||1,399|
|17.||Sony A900||..||+ +||+ +||4.5/5||5/5||Sep 2008||2,999|
|Notes: (+ +) 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. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
Other camera comparisons
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Specifications: Canon T7 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 T7||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 2018||August 2009|
|Launch Price||USD 449||USD 1,999|
|Sensor Specs||Canon T7||Sony A850|
|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|
|Sensor Resolution||24 Megapixels||24.4 Megapixels|
|Image Resolution||6000 x 4000 pixels||6048 x 4032 pixels|
|Pixel Pitch||3.72 μm||5.94 μm|
|Pixel Density||7.22 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)||..||79|
|DXO Color Depth (bits)||..||23.8|
|DXO Dynamic Range (EV)||..||12.2|
|DXO Low Light (ISO)||..||1415|
|Screen Specs||Canon T7||Sony A850|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||95%||98%|
|Top-Level Screen||no Top Display||Control Panel|
|LCD Framing||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||920k dots||922k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Canon T7||Sony A850|
|Focus System||Phase-detect AF||Phase-detect AF|
|Continuous Shooting||3 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|
|Second Storage Option||Single card slot||Dual card slots|
|Connectivity Specs||Canon T7||Sony A850|
|Studio Flash||no PC Sync||PC Sync socket|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||mini HDMI|
|Wifi Support||Wifi built-in||no Wifi|
|Near-Field Communication||NFC built-in||no NFC|
|Body Specs||Canon T7||Sony A850|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||500 shots per charge||880 shots per charge|
129 x 101 x 78 mm
(5.1 x 4.0 x 3.1 in)
156 x 117 x 82 mm
(6.1 x 4.6 x 3.2 in)
|Camera Weight||475 g (16.8 oz)||895 g (31.6 oz)|
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