Canon 77D vs Sony A7R III
The Canon EOS 77D and the Sony Alpha A7R III are two digital cameras that were revealed to the public, respectively, in February 2017 and October 2017. The 77D is a DSLR, while the A7R III is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (77D) and a full frame (A7R III) sensor. The Canon has a resolution of 24 megapixels, whereas the Sony provides 42.2 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Canon 77D||Sony A7R III|
|Digital single lens reflex||Mirrorless system camera|
|Canon EF mount lenses||Sony E mount lenses|
|24 MP, APS-C Sensor||42.2 MP, Full Frame Sensor|
|1080/60p Video||4K/30p Video|
|ISO 100-25600 (100-51200)||ISO 100-32000 (50-102400)|
|Optical viewfinder||Electronic viewfinder (3686k dots)|
|3.0" LCD, 1040k dots||3.0" LCD, 1440k dots|
|Swivel touchscreen||Tilting touchscreen|
|6 shutter flaps per second||10 shutter flaps per second|
|Lens stabilization only||In-body stabilization|
|Not weather sealed||Weathersealed body|
|600 shots per battery charge||650 shots per battery charge|
|131 x 100 x 76 mm, 540 g||127 x 96 x 74 mm, 650 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 77D and the Sony Alpha A7R III? 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: Canon 77D vs Sony A7R III
The side-by-side display below illustrates the physical size and weight of the Canon 77D and the Sony A7R III. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All size dimensions 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 A7R III is notably smaller (7 percent) than the Canon 77D. However, the A7R III is markedly heavier (20 percent) than the 77D. It is noteworthy in this context that the A7R III is splash and dust-proof, while the 77D 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 (77D) and the Sony FE Lens Catalog (A7R III). Mirrorless cameras, such as the A7R III, 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 77D gets 600 shots out of its LP-E17 battery, while the A7R III can take 650 images on a single charge of its NP-FZ100 power pack. The power pack in the A7R III 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, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.
|Canon 77D»||5.2 in||3.9 in||3.0 in||19.0 oz||600||n||Feb 2017||899||Canon 77D|
|Sony A7R III«||5.0 in||3.8 in||2.9 in||22.9 oz||650||Y||Oct 2017||3,199||Sony A7R III|
|Canon M50« »||4.6 in||3.5 in||2.3 in||13.8 oz||235||n||Feb 2018||779||Canon M50|
|Canon T7« »||5.1 in||4.0 in||3.1 in||16.8 oz||500||n||Feb 2018||449||Canon T7|
|Canon SL2« »||4.8 in||3.7 in||2.8 in||16.0 oz||650||n||Jun 2017||549||-||Canon SL2|
|Canon T7i« »||5.2 in||3.9 in||3.0 in||18.8 oz||600||n||Feb 2017||749||Canon T7i|
|Canon M5« »||4.6 in||3.5 in||2.4 in||15.1 oz||295||n||Sep 2016||979||Canon M5|
|Canon T6« »||5.1 in||4.0 in||3.1 in||17.1 oz||500||n||Mar 2016||449||-||Canon T6|
|Canon T6i« »||5.2 in||4.0 in||3.1 in||19.6 oz||440||n||Feb 2015||749||-||Canon T6i|
|Canon T6s« »||5.2 in||4.0 in||3.1 in||19.9 oz||440||n||Feb 2015||649||-||Canon T6s|
|Canon T4i« »||5.2 in||3.9 in||3.1 in||20.3 oz||440||n||Jun 2012||849||-||Canon T4i|
|Canon T3i« »||5.2 in||3.9 in||3.1 in||20.1 oz||440||n||Feb 2011||599||-||Canon T3i|
|Sony A7 III« »||5.0 in||3.8 in||2.9 in||22.9 oz||610||Y||Feb 2018||1,999||Sony A7 III|
|Sony A9« »||5.0 in||3.8 in||2.5 in||23.7 oz||650||Y||Apr 2017||4,499||Sony A9|
|Sony A99 II« »||5.6 in||4.1 in||3.0 in||29.9 oz||490||Y||Sep 2016||3,199||Sony A99 II|
|Sony A7R II« »||5.0 in||3.8 in||2.4 in||22.0 oz||290||Y||Jun 2015||3,199||-||Sony A7R II|
|Sony A7S II« »||5.0 in||3.8 in||2.4 in||22.1 oz||370||Y||Sep 2015||2,999||Sony A7S II|
|Note: Measurements and pricing do not include easily detachable parts, such as 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 77D was launched at a markedly lower price (by 72 percent) than the A7R III, 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.
Sensor comparison: Canon 77D vs Sony A7R III
The size of the sensor inside a digital camera is one of the key determinants 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 77D features an APS-C sensor and the Sony A7R III a full frame sensor. The sensor area in the A7R III 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 42.2MP, the A7R III offers a higher resolution than the 77D (24MP), but the A7R III nevertheless has larger individual pixels (pixel pitch of 4.52μm versus 3.72μm for the 77D) due to its larger sensor. Moreover, the A7R III is a somewhat more recent model (by 8 months) than the 77D, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the A7R III has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Sony A7R III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7R III for good quality output (200 dots per inch) amounts to 39.8 x 26.5 inch or 101 x 67.4 cm, for very good quality (250 dpi) 31.8 x 21.2 inch or 80.8 x 53.9 cm, and for excellent quality (300 dpi) 26.5 x 17.7 inch or 67.3 x 44.9 cm. The corresponding values for the Canon 77D are 30 x 20 inch or 76.2 x 50.8 cm for good quality, 24 x 16 inch or 61 x 40.6 cm for very good quality, and 20 x 13.3 inch or 50.8 x 33.9 cm for excellent quality prints.
Unlike the 77D, the A7R III has the capacity to capture high quality composite images by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).
The Canon EOS 77D 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 A7R III are ISO 100 to ISO 32000, with the possibility to increase the ISO range to 50-102400.
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 A7R III offers substantially better image quality than the 77D (overall score 22 points higher). The advantage is based on 2.4 bits higher color depth, 1.4 EV in additional dynamic range, and 1.9 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.
|Canon 77D»||APS-C||24.0||6000||4000||1080/60p||23.6||13.3||971||78||Canon 77D|
|Sony A7R III«||Full Frame||42.2||7952||5304||4K/30p||26.0||14.7||3523||100||Sony A7R III|
|Canon M50« »||APS-C||24.0||6000||4000||4K/24p||-||-||-||-||Canon M50|
|Canon T7« »||APS-C||24.0||6000||4000||1080/30p||-||-||-||-||Canon T7|
|Canon SL2« »||APS-C||24.0||6000||4000||1080/60p||23.6||13.4||1041||79||Canon SL2|
|Canon T7i« »||APS-C||24.0||6000||4000||1080/60p||-||-||-||-||Canon T7i|
|Canon M5« »||APS-C||24.0||6000||4000||1080/60p||23.4||12.4||1262||77||Canon M5|
|Canon T6« »||APS-C||17.9||5184||3456||1080/30p||-||-||-||-||Canon T6|
|Canon T6i« »||APS-C||24.0||6000||4000||1080/60p||22.7||12.0||919||71||Canon T6i|
|Canon T6s« »||APS-C||24.0||6000||4000||1080/30p||22.6||12.0||915||70||Canon T6s|
|Canon T4i« »||APS-C||17.9||5184||3456||1080/30p||21.7||11.2||722||62||Canon T4i|
|Canon T3i« »||APS-C||17.9||5184||3456||1080/30p||22.1||11.5||793||65||Canon T3i|
|Sony A7 III« »||Full Frame||24.0||6000||4000||4K/30p||25.0||14.7||3730||96||Sony A7 III|
|Sony A9« »||Full Frame||24.0||6000||4000||4K/30p||24.9||13.3||3517||92||Sony A9|
|Sony A99 II« »||Full Frame||42.2||7952||5304||4K/30p||25.4||13.4||2317||92||Sony A99 II|
|Sony A7R II« »||Full Frame||42.2||7952||5304||4K/30p||26.0||13.9||3434||98||Sony A7R II|
|Sony A7S II« »||Full Frame||12.0||4240||2832||4K/30p||23.6||13.3||2993||85||Sony A7S II|
Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the A7R III provides a better video resolution than the 77D. It can shoot movie footage at 4K/30p, while the Canon is limited to 1080/60p.
Feature comparison: Canon 77D vs Sony A7R III
Apart from body and sensor, cameras can and do differ across a range of features. For example, the A7R III has an electronic viewfinder (3686k dots), while the 77D 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 A7R III offers a wider field of view (100%) than the one in the 77D (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the A7R III has a higher magnification (0.78x vs 0.51x), 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 77D and Sony A7R III along with similar information for a selection of comparators.
|Canon 77D»||optical||Y||3.0||1040||swivel||Y||1/4000s||6.0||Y||n||Canon 77D|
|Sony A7R III«||3686||n||3.0||1440||tilting||Y||1/8000s||10.0||n||Y||Sony A7R III|
|Canon M50« »||2360||n||3.0||1040||swivel||Y||1/4000s||10.0||Y||n||Canon M50|
|Canon T7« »||optical||n||3.0||920||fixed||n||1/4000s||3.0||Y||n||Canon T7|
|Canon SL2« »||optical||n||3.0||1040||swivel||Y||1/4000s||5.0||Y||n||Canon SL2|
|Canon T7i« »||optical||n||3.0||1040||swivel||Y||1/4000s||6.0||Y||n||Canon T7i|
|Canon M5« »||2360||n||3.2||1620||tilting||Y||1/4000s||9.0||Y||n||Canon M5|
|Canon T6« »||optical||n||3.0||920||fixed||n||1/4000s||3.0||Y||n||Canon T6|
|Canon T6i« »||optical||n||3.0||1040||swivel||Y||1/4000s||5.0||Y||n||Canon T6i|
|Canon T6s« »||optical||Y||3.0||1040||swivel||Y||1/4000s||5.0||Y||n||Canon T6s|
|Canon T4i« »||optical||n||3.0||1040||swivel||Y||1/4000s||5.0||Y||n||Canon T4i|
|Canon T3i« »||optical||n||3.0||1040||swivel||n||1/4000s||3.7||Y||n||Canon T3i|
|Sony A7 III« »||2359||n||3.0||922||tilting||Y||1/8000s||10.0||n||Y||Sony A7 III|
|Sony A9« »||3686||n||3.0||1440||tilting||Y||1/8000s||20.0||n||Y||Sony A9|
|Sony A99 II« »||2400||Y||3.0||1229||full-flex||n||1/8000s||12.0||n||Y||Sony A99 II|
|Sony A7R II« »||2400||n||3.0||1229||tilting||n||1/8000s||5.0||n||Y||Sony A7R II|
|Sony A7S II« »||2400||n||3.0||1229||tilting||n||1/8000s||5.0||n||Y||Sony A7S II|
One difference between the cameras concerns the presence of an on-board flash. The 77D has one, while the A7R III does not. While the built-in flash of the 77D is not very powerful, it can at times be useful as a fill-in light.The 77D has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the A7R III does not have a selfie-screen.
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 A7R III 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 Canon 77D and the Sony A7R III both have 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 77D writes its imaging data to SDXC cards, while the A7R III uses SDXC or Memory Stick PRO Duo cards. The A7R III features dual card slots, which can be very useful in case a memory card fails. In contrast, the 77D only has one slot. The A7R III supports UHS-II cards (on its first slot), while the 77D can use UHS-I cards.
Connectivity comparison: Canon 77D vs Sony A7R III
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 77D and Sony Alpha A7R III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Canon 77D»||Y||stereo||mono||Y||-||mini||2.0||Y||Y||Y||Canon 77D|
|Sony A7R III«||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y||Sony A7R III|
|Canon M50« »||Y||stereo||mono||Y||-||micro||2.0||Y||Y||Y||Canon M50|
|Canon T7« »||Y||mono||mono||-||-||mini||2.0||Y||Y||-||Canon T7|
|Canon SL2« »||Y||stereo||mono||Y||-||mini||2.0||Y||Y||Y||Canon SL2|
|Canon T7i« »||Y||stereo||mono||Y||-||mini||2.0||Y||Y||Y||Canon T7i|
|Canon M5« »||Y||stereo||mono||Y||-||mini||2.0||Y||Y||Y||Canon M5|
|Canon T6« »||Y||mono||mono||-||-||mini||2.0||Y||Y||-||Canon T6|
|Canon T6i« »||Y||stereo||mono||Y||-||mini||2.0||Y||Y||-||Canon T6i|
|Canon T6s« »||Y||stereo||mono||Y||-||mini||2.0||Y||Y||-||Canon T6s|
|Canon T4i« »||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Canon T4i|
|Canon T3i« »||Y||mono||mono||Y||-||mini||2.0||-||-||-||Canon T3i|
|Sony A7 III« »||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y||Sony A7 III|
|Sony A9« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||Y||Sony A9|
|Sony A99 II« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||Y||Sony A99 II|
|Sony A7R II« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7R II|
|Sony A7S II« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7S II|
It is notable that the A7R III has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The 77D lacks such a headphone port.
Studio photographers will appreciate that the Sony A7R III (unlike the 77D) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the 77D and the A7R III are recent models that are part of the current product line-up. The 77D replaced the earlier Canon T6s, while the A7R III followed on from the Sony A7R II. 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.
Review summary: Canon 77D vs Sony A7R III
So what is the bottom line? Which of the two cameras – the Canon 77D or the Sony A7R III – 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 77D:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- More flexible LCD: Has swivel 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.
- Less heavy: Is lighter (by 110g or 17 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 (72 percent cheaper at launch).
- More heavily discounted: Has been on the market for longer (launched in February 2017).
Advantages of the Sony Alpha A7R III:
- More detail: Has more megapixels (42.2 vs 24MP), which boosts linear resolution by 33%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- High quality composites: Can combine several shots after pixel-shifting its sensor.
- Better image quality: Scores substantially higher (22 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (2.4 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (1.4 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (1.9 stops ISO advantage).
- Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
- 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 0.51x).
- More detailed LCD: Has a higher resolution rear screen (1440k vs 1040k dots).
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (10 vs 6 flaps/sec) to capture the decisive moment.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- 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.
- Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
- 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 a more advanced SD data transfer standard (UHS-II vs UHS-I).
- More modern: Was introduced somewhat (8 months) more recently.
If the number of relative strengths (bullet points above) is taken as a guide, the A7R III is the clear winner of the contest (24 : 9 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 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 77D and the Sony A7R III 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 says little about, for example, the shooting experience and imaging performance of the 77D and the A7R III 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.
Expert reviews: Canon 77D vs Sony A7R III
This is where reviews by experts come in. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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.
|Canon 77D»||-||82/100||4.5/5||4.5/5||4/5||Feb 2017||899||Canon 77D|
|Sony A7R III«||+ +||90/100||4.5/5||5/5||5/5||Oct 2017||3,199||Sony A7R III|
|Canon M50« »||+||79/100||-||4/5||3.5/5||Feb 2018||779||Canon M50|
|Canon T7« »||o||-||3.5/5||-||3.5/5||Feb 2018||449||Canon T7|
|Canon SL2« »||+ +||78/100||4.5/5||4.5/5||4.5/5||Jun 2017||549||-||Canon SL2|
|Canon T7i« »||-||80/100||4.5/5||4/5||4/5||Feb 2017||749||Canon T7i|
|Canon M5« »||+||82/100||4/5||4.5/5||4/5||Sep 2016||979||Canon M5|
|Canon T6« »||o||73/100||4/5||3.5/5||4/5||Mar 2016||449||-||Canon T6|
|Canon T6i« »||-||75/100||4.5/5||4.5/5||4.5/5||Feb 2015||749||-||Canon T6i|
|Canon T6s« »||+||77/100||4.5/5||4.5/5||4.5/5||Feb 2015||649||-||Canon T6s|
|Canon T4i« »||+ +||77/100||4.5/5||4.5/5||4.5/5||Jun 2012||849||-||Canon T4i|
|Canon T3i« »||o||77/100||4.5/5||5/5||4.5/5||Feb 2011||599||-||Canon T3i|
|Sony A7 III« »||+ +||89/100||5/5||5/5||5/5||Feb 2018||1,999||Sony A7 III|
|Sony A9« »||+ +||89/100||5/5||5/5||5/5||Apr 2017||4,499||Sony A9|
|Sony A99 II« »||-||85/100||4.5/5||4.5/5||4.5/5||Sep 2016||3,199||Sony A99 II|
|Sony A7R II« »||+ +||90/100||5/5||4.5/5||5/5||Jun 2015||3,199||-||Sony A7R II|
|Sony A7S II« »||+||-||4.5/5||5/5||5/5||Sep 2015||2,999||Sony A7S II|
|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. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.
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 77D vs Sony A7R III
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 77D||Sony A7R III|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Canon EF mount lenses||Sony E mount lenses|
|Launch Date||February 2017||October 2017|
|Launch Price||USD 899||USD 3199|
|Sensor Specs||Canon 77D||Sony A7R III|
|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||42.2 Megapixels|
|Image Resolution||6000 x 4000 pixels||7952 x 5304 pixels|
|Pixel Pitch||3.72 μm||4.52 μm|
|Pixel Density||7.22 MP/cm2||4.90 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||1080/60p Video||4K/30p Video|
|ISO Setting||100-25600 ISO||100-32000 ISO|
|ISO Boost||100-51200 ISO||50-102400 ISO|
|Image Processor||DIGIC 7||BIONZ X|
|DXO Sensor Quality (score)||78||100|
|DXO Color Depth (bits)||23.6||26.0|
|DXO Dynamic Range (EV)||13.3||14.7|
|DXO Low Light (ISO)||971||3523|
|Screen Specs||Canon 77D||Sony A7R III|
|Viewfinder Type||Optical viewfinder||Electronic viewfinder|
|Viewfinder Field of View||95%||100%|
|Viewfinder Resolution||3686k dots|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0 inch||3.0 inch|
|LCD Resolution||1040k dots||1440k dots|
|LCD Attachment||Swivel screen||Tilting screen|
|Shooting Specs||Canon 77D||Sony A7R III|
|Autofocus System||Phase-detect AF||On-Sensor Phase-detect|
|Manual Focusing Aid||No Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000/s||1/8000/s|
|Continuous Shooting||6 shutter flaps/s||10 shutter flaps/s|
|Shutter Life Expectancy||100 000 actuations||500 000 actuations|
|Electronic Shutter||no E-Shutter||YES|
|Time-Lapse Photography||Intervalometer built-in||Intervalometer built-in|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||Build-in Flash||no On-Board Flash|
|Storage Medium||SDXC cards||MS or SDXC cards|
|Second Storage Option||Single card slot||Dual card slots|
|UHS card support||UHS-I||Single UHS-II|
|Connectivity Specs||Canon 77D||Sony A7R III|
|Studio Flash||no PC Sync||PC Sync socket|
|USB Connector||USB 2.0||USB 3.1|
|HDMI Port||mini HDMI||micro HDMI|
|Microphone Port||External MIC port||External MIC port|
|Headphone Socket||no Headphone port||Headphone port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Near-Field Communication||NFC built-in||NFC built-in|
|Bluetooth Support||Bluetooth built-in||Bluetooth built-in|
|Body Specs||Canon 77D||Sony A7R III|
|Environmental Sealing||Not weather sealed||Weathersealed body|
|Battery Type||LP-E17 power pack||NP-FZ100 power pack|
|Battery Life (CIPA)||600 shots per charge||650 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
131 x 100 x 76 mm
(5.2 x 3.9 x 3.0 in)
127 x 96 x 74 mm
(5.0 x 3.8 x 2.9 in)
|Camera Weight||540 g (19.0 oz)||650 g (22.9 oz)|
Did you notice an error on this page? If so, please get in touch, so that we can correct the information.