Canon SL3 vs Sony A77 II
The Canon EOS Rebel SL3 (called Canon 250D in some regions) and the Sony Alpha SLT-A77 II are two digital cameras that were announced, respectively, in April 2019 and May 2014. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. Both cameras offer a resolution of 24 megapixels.
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 SL3 and the Sony Alpha SLT-A77 II? 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.
The physical size and weight of the Canon SL3 and the Sony A77 II 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 size dimensions are rounded to the nearest millimeter.
The SL3 can be obtained in two different colors (black, white), while the A77 II is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A77 II is notably larger (31 percent) than the Canon SL3. Moreover, the A77 II is substantially heavier (44 percent) than the SL3. It is noteworthy in this context that the A77 II is splash and dust-proof, while the SL3 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 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.
|1.||Canon SL3||122 mm||93 mm||70 mm||449 g||1070||n||Apr 2019||599||amazon.com|
|2.||Sony A77 II||143 mm||104 mm||81 mm||647 g||480||Y||May 2014||1,199||ebay.com|
|3.||Canon T8i||131 mm||103 mm||76 mm||515 g||800||n||Feb 2020||749||amazon.com|
|4.||Canon M50 Mark II||116 mm||88 mm||59 mm||387 g||305||n||Oct 2020||599||amazon.com|
|5.||Canon M50||116 mm||88 mm||59 mm||390 g||235||n||Feb 2018||779||ebay.com|
|6.||Canon T7||129 mm||101 mm||78 mm||475 g||500||n||Feb 2018||449||amazon.com|
|7.||Canon 77D||131 mm||100 mm||76 mm||540 g||600||n||Feb 2017||899||ebay.com|
|8.||Canon SL2||122 mm||93 mm||70 mm||453 g||650||n||Jun 2017||549||ebay.com|
|9.||Canon T7i||131 mm||100 mm||76 mm||532 g||600||n||Feb 2017||749||ebay.com|
|10.||Canon T6s||132 mm||101 mm||78 mm||565 g||440||n||Feb 2015||649||ebay.com|
|11.||Canon SL1||117 mm||91 mm||69 mm||407 g||380||n||Mar 2013||549||ebay.com|
|12.||Canon T2i||129 mm||98 mm||62 mm||530 g||440||n||Feb 2010||699||ebay.com|
|13.||Nikon D7200||136 mm||107 mm||76 mm||765 g||1110||Y||Mar 2015||1,199||ebay.com|
|14.||Nikon D7100||136 mm||107 mm||76 mm||765 g||950||Y||Feb 2013||1,199||ebay.com|
|15.||Sony A68||143 mm||104 mm||81 mm||610 g||540||n||Nov 2015||699||ebay.com|
|16.||Sony A7 II||127 mm||96 mm||60 mm||599 g||350||Y||Nov 2014||1,999||ebay.com|
|17.||Sony A77||143 mm||104 mm||81 mm||732 g||470||Y||Aug 2011||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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The SL3 was launched at a markedly lower price (by 50 percent) than the A77 II, 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
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. 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.
Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the A77 II is 11 percent bigger. As a result of these sensor size differences, the cameras have format factors, respectively, of 1.6 (SL3) and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Even though the A77 II has a larger sensor, both cameras offer the same resolution of 24 megapixels. This implies that the A77 II has a lower pixel density and larger individual pixels (with a pixel pitch of 3.91μm versus 3.72μm for the SL3), which gives it a potential advantage in terms of light gathering capacity. It should, however, be noted that the SL3 is much more recent (by 4 years and 11 months) than the A77 II, and its sensor will have benefitted from technological advances during this time that at least partly compensate for the smaller pixel size.
The SL3 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Canon EOS Rebel SL3 has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 100-51200. The corresponding ISO settings for the Sony Alpha SLT-A77 II are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-51200.
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.
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.
|2.||Sony A77 II||APS-C||24.0||6000||4000||1080/60p||24.4||13.4||1013||82|
|4.||Canon M50 Mark II||APS-C||24.0||6000||4000||4K/24p||24.0||13.6||1939||83|
|16.||Sony A7 II||Full Frame||24.0||6000||4000||1080/60p||24.9||13.6||2449||90|
|Note: DXO values in italics represent estimates based on sensor size and age.|
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 SL3 provides a higher video resolution than the A77 II. It can shoot video footage at 4K/25p, while the Sony is limited to 1080/60p.
Apart from body and sensor, cameras can and do differ across a range of features. For example, the A77 II has an electronic viewfinder (2359k dots), while the SL3 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 II offers a wider field of view (100%) than the one in the SL3 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the A77 II 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 adjacent table lists some of the other core features of the Canon SL3 and Sony A77 II along with similar information for a selection of comparators.
|1.||Canon SL3||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|2.||Sony A77 II||2359||Y||3.0 / 1229||full-flex||n||1/8000s||12.0/s||Y||Y|
|3.||Canon T8i||optical||n||3.0 / 1040||swivel||Y||1/4000s||7.5/s||Y||n|
|4.||Canon M50 Mark II||2360||n||3.0 / 1040||swivel||Y||1/4000s||10.0/s||Y||n|
|5.||Canon M50||2360||n||3.0 / 1040||swivel||Y||1/4000s||10.0/s||Y||n|
|6.||Canon T7||optical||n||3.0 / 920||fixed||n||1/4000s||3.0/s||Y||n|
|7.||Canon 77D||optical||Y||3.0 / 1040||swivel||Y||1/4000s||6.0/s||Y||n|
|8.||Canon SL2||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|9.||Canon T7i||optical||n||3.0 / 1040||swivel||Y||1/4000s||6.0/s||Y||n|
|10.||Canon T6s||optical||Y||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|11.||Canon SL1||optical||n||3.0 / 1040||fixed||Y||1/4000s||4.9/s||Y||n|
|12.||Canon T2i||optical||n||3.0 / 1040||fixed||n||1/4000s||3.7/s||Y||n|
|13.||Nikon D7200||optical||Y||3.2 / 1229||fixed||n||1/8000s||6.0/s||Y||n|
|14.||Nikon D7100||optical||Y||3.2 / 1229||fixed||n||1/8000s||6.0/s||Y||n|
|15.||Sony A68||1440||Y||2.7 / 460||tilting||n||1/4000s||8.0/s||Y||Y|
|16.||Sony A7 II||2400||n||3.0 / 1230||tilting||n||1/8000s||5.0/s||n||Y|
|17.||Sony A77||2359||Y||3.0 / 921||full-flex||n||1/8000s||12.0/s||Y||Y|
|Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.|
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The SL3 has a touchscreen, while the A77 II has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.
The Canon SL3 has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.
The SL3 writes its imaging data to SDXC cards, while the A77 II uses SDXC or Memory Stick PRO Duo cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.
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 SL3 and Sony Alpha SLT-A77 II and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon SL3||Y||stereo / mono||Y||-||mini||2.0||Y||-||Y|
|2.||Sony A77 II||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|3.||Canon T8i||Y||stereo / mono||Y||-||mini||2.0||Y||-||Y|
|4.||Canon M50 Mark II||Y||stereo / mono||Y||-||micro||2.0||Y||-||Y|
|5.||Canon M50||Y||stereo / mono||Y||-||micro||2.0||Y||-||Y|
|6.||Canon T7||Y||mono / mono||-||-||mini||2.0||Y||Y||-|
|7.||Canon 77D||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|8.||Canon SL2||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|9.||Canon T7i||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|10.||Canon T6s||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|11.||Canon SL1||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|12.||Canon T2i||Y||stereo / -||Y||-||mini||2.0||-||-||-|
|13.||Nikon D7200||Y||stereo / mono||Y||Y||mini||2.0||Y||Y||-|
|14.||Nikon D7100||Y||stereo / mono||Y||Y||mini||2.0||-||-||-|
|15.||Sony A68||Y||stereo / mono||Y||-||micro||2.0||-||-||-|
|16.||Sony A7 II||Y||stereo / mono||Y||Y||micro||2.0||Y||Y||-|
|17.||Sony A77||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
Studio photographers will appreciate that the Sony A77 II (unlike the SL3) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
The SL3 is a recent model that features in the current product line-up of Canon. In contrast, the A77 II has been discontinued (but can be found pre-owned on ebay). There has not been a direct replacement model for the A77 II from Sony. Further information on the features and operation of the SL3 and A77 II can be found, respectively, in the Canon SL3 Manual (free pdf) or the online Sony A77 II Manual.
So what is the bottom line? Is the Canon SL3 better than the Sony A77 II or vice versa? A synthesis of the relative strong points of each of the models is listed below.
Advantages of the Canon EOS Rebel SL3:
- Better video: Provides higher definition movie capture (4K/25p vs 1080/60p).
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More compact: Is smaller (122x93mm vs 143x104mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 198g or 31 percent) and hence easier to carry around.
- Longer lasting: Can take more shots (1070 versus 480) on a single battery charge.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- More affordable: Was introduced into a lower priced category (50 percent cheaper at launch).
- More modern: Reflects 4 years and 11 months of technical progress since the A77 II launch.
Arguments in favor of the Sony Alpha SLT-A77 II:
- 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 detailed LCD: Has a higher resolution rear screen (1229k vs 1040k dots).
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (12 vs 5 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 device pairing: Supports NFC for fast wireless image transfer over short distances.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- More heavily discounted: Has been around for much longer (launched in May 2014).
If the count of individual advantages (bullet points above) is taken as a guide, the A77 II comes out slightly ahead of the SL3 (12 : 11 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 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 SL3 and the Sony A77 II 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 technical specifications can provide a useful overview of the capabilities of different cameras, it says little about, for example, the shooting experience and imaging performance of the SL3 and the A77 II in practical situations. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.
This is why hands-on reviews by experts 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.
|1.||Canon SL3||..||o||4.5/5||79/100||4/5||4/5||Apr 2019||599||amazon.com|
|2.||Sony A77 II||4/5||..||..||80/100||4.5/5||5/5||May 2014||1,199||ebay.com|
|3.||Canon T8i||4.5/5||+||3/5||80/100||4/5||3.5/5||Feb 2020||749||amazon.com|
|4.||Canon M50 Mark II||4/5||..||4/5||..||4.5/5||3.5/5||Oct 2020||599||amazon.com|
|5.||Canon M50||..||+||4/5||79/100||..||3.5/5||Feb 2018||779||ebay.com|
|6.||Canon T7||..||o||3.5/5||..||3.5/5||3.5/5||Feb 2018||449||amazon.com|
|7.||Canon 77D||4.5/5||..||4/5||82/100||4.5/5||4/5||Feb 2017||899||ebay.com|
|8.||Canon SL2||4/5||+ +||4/5||78/100||4.5/5||4.5/5||Jun 2017||549||ebay.com|
|9.||Canon T7i||4.5/5||..||3.5/5||80/100||4.5/5||4/5||Feb 2017||749||ebay.com|
|10.||Canon T6s||5/5||+||..||77/100||4.5/5||4.5/5||Feb 2015||649||ebay.com|
|11.||Canon SL1||4/5||+||..||78/100||4/5||4/5||Mar 2013||549||ebay.com|
|12.||Canon T2i||..||+ +||..||77/100||4/5||4.5/5||Feb 2010||699||ebay.com|
|13.||Nikon D7200||4/5||+ +||..||84/100||4.5/5||4.5/5||Mar 2015||1,199||ebay.com|
|14.||Nikon D7100||5/5||+ +||..||85/100||4.5/5||4.5/5||Feb 2013||1,199||ebay.com|
|15.||Sony A68||3/5||..||..||..||4/5||4/5||Nov 2015||699||ebay.com|
|16.||Sony A7 II||5/5||+||4/5||82/100||4.5/5||5/5||Nov 2014||1,999||ebay.com|
|17.||Sony A77||5/5||91/100||..||81/100||..||5/5||Aug 2011||1,399||ebay.com|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The above review scores should be interpreted with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. 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.
Specifications: Canon SL3 vs Sony A77 II
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 SL3||Sony A77 II|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Sony A mount lenses|
|Launch Date||April 2019||May 2014|
|Launch Price||USD 599||USD 1,199|
|Sensor Specs||Canon SL3||Sony A77 II|
|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|
|Sensor Resolution||24 Megapixels||24 Megapixels|
|Image Resolution||6000 x 4000 pixels||6000 x 4000 pixels|
|Pixel Pitch||3.72 μm||3.91 μm|
|Pixel Density||7.22 MP/cm2||6.55 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||4K/25p Video||1080/60p Video|
|ISO Setting||100 - 25,600 ISO||100 - 25,600 ISO|
|ISO Boost||100 - 51,200 ISO||50 - 51,200 ISO|
|Image Processor||DIGIC 8||BIONZ X|
|DXO Sensor Quality (score)||..||82|
|DXO Color Depth (bits)||..||24.4|
|DXO Dynamic Range (EV)||..||13.4|
|DXO Low Light (ISO)||..||1013|
|Screen Specs||Canon SL3||Sony A77 II|
|Viewfinder Type||Optical viewfinder||Electronic viewfinder|
|Viewfinder Field of View||95%||100%|
|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||1229k dots|
|LCD Attachment||Swivel screen||Fully flexible screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Canon SL3||Sony A77 II|
|Focus System||Phase-detect AF||Phase-detect AF|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/8000s|
|Continuous Shooting||5 shutter flaps/s||12 shutter flaps/s|
|Shutter Life Expectancy||100 000 actuations||150 000 actuations|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|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||UHS-I||UHS-I|
|Connectivity Specs||Canon SL3||Sony A77 II|
|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||Wifi built-in||Wifi built-in|
|Near-Field Communication||no NFC||NFC built-in|
|Bluetooth Support||Bluetooth built-in||no Bluetooth|
|Body Specs||Canon SL3||Sony A77 II|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||1070 shots per charge||480 shots per charge|
122 x 93 x 70 mm
(4.8 x 3.7 x 2.8 in)
143 x 104 x 81 mm
(5.6 x 4.1 x 3.2 in)
|Camera Weight||449 g (15.8 oz)||647 g (22.8 oz)|
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