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Canon 77D vs Sony A77 II

The Canon EOS 77D and the Sony Alpha SLT-A77 II are two digital cameras that were announced, respectively, in February 2017 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. Read on to find out how these two cameras compare with respect to their body size, their sensors, their features, their input-output connections, and their reception by expert reviewers.


Headline Specifications
Canon 77D   Sony A77 II
Canon 77D Sony A77 II
Digital single lens reflex Digital single lens reflex
Canon EF mount lenses Sony A mount lenses
24 MP, APS-C Sensor 24 MP, APS-C Sensor
1080/60p Video 1080/60p Video
ISO 100-25600 (100-51200) ISO 100-25600 (50-51200)
Optical viewfinder Electronic viewfinder (2359k dots)
3.0" LCD, 1040k dots 3.0" LCD, 1229k dots
Swivel touchscreen Fully flexible screen (no touchscreen)
6 shutter flaps per second 12 shutter flaps per second
Lens stabilization onlyIn-body stabilization
Not weather sealedWeathersealed body
600 shots per battery charge480 shots per battery charge
131 x 100 x 76 mm, 540 g 143 x 104 x 81 mm, 647 g

Body comparison: Canon 77D vs Sony A77 II

The side-by-side display below illustrates the physical size and weight of the Canon 77D and the Sony A77 II. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All size dimensions are rounded to the nearest millimeter. You can also toggle the display to switch to a percentage comparison if you prefer that the measures are being expressed in relative terms (in this case, the camera on the left – the 77D – represents the basis or 100 percent across all the size and weight measures).

Compare Canon 77D and Sony A77 II
Compare 77D versus A77 II top
Compare 77D or A77 II rear

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 (14 percent) than the Canon 77D. Moreover, the A77 II is markedly heavier (20 percent) than the 77D. It is noteworthy in this context that the A77 II 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. 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 77D gets 600 shots out of its LP-E17 battery, while the A77 II can take 480 images on a single charge of its NP-FM500H power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
Canon 77D» 5.2 in 3.9 in 3.0 in 19.0 oz 600 n Feb 2017 899 i i Canon 77D
Sony A77 II« 5.6 in 4.1 in 3.2 in 22.8 oz 480 Y May 2014 1,199 i i Sony A77 II
Canon M50« » 4.6 in 3.5 in 2.3 in 13.8 oz 235 n Feb 2018 779 i i Canon M50
Canon T7« » 5.1 in 4.0 in 3.1 in 16.8 oz 500 n Feb 2018 449 i i Canon T7
Canon SL2« » 4.8 in 3.7 in 2.8 in 16.0 oz 650 n Jun 2017 549 i i Canon SL2
Canon T7i« » 5.2 in 3.9 in 3.0 in 18.8 oz 600 n Feb 2017 749 i i Canon T7i
Canon M5« » 4.6 in 3.5 in 2.4 in 15.1 oz 295 n Sep 2016 979 i i Canon M5
Canon T6« » 5.1 in 4.0 in 3.1 in 17.1 oz 500 n Mar 2016 449- i Canon T6
Canon T6i« » 5.2 in 4.0 in 3.1 in 19.6 oz 440 n Feb 2015 749- i Canon T6i
Canon T6s« » 5.2 in 4.0 in 3.1 in 19.9 oz 440 n Feb 2015 849- i Canon T6s
Canon T4i« » 5.2 in 3.9 in 3.1 in 20.3 oz 440 n Jun 2012 849- i Canon T4i
Canon T3i« » 5.2 in 3.9 in 3.1 in 20.1 oz 440 n Feb 2011 599- i Canon T3i
Nikon D7100« » 5.4 in 4.2 in 3.0 in 27.0 oz 950 Y Feb 2013 1,199- i Nikon D7100
Pentax K-3« » 5.2 in 3.9 in 3.0 in 28.2 oz 560 Y Oct 2013 1,299- i Pentax K-3
Sony A6500« » 4.7 in 2.6 in 2.1 in 16.0 oz 350 Y Oct 2016 1,399 i i Sony A6500
Sony A7 II« » 5.0 in 3.8 in 2.4 in 21.1 oz 350 Y Nov 2014 1,999- i Sony A7 II
Sony A77« » 5.6 in 4.1 in 3.2 in 25.8 oz 470 Y Aug 2011 1,999- i Sony A77

Any camera decision will obviously take relative prices into account. 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 somewhat lower price (by 25 percent) than the A77 II, which makes it more attractive for photographers on a tight budget. 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: Canon 77D vs Sony A77 II

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the A77 II is 11 percent bigger. As a result of these sensor size differences, the cameras have format factors, respectively, of 1.6 (77D) and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

In terms of underlying technology, both cameras are build around CMOS sensors.

Canon 77D and Sony A77 II sensor measures

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 77D), which gives it a potential advantage in terms of light gathering capacity. It should, however, be noted that the 77D is much more recent (by 2 years and 9 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 77D has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during video recording.

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 SLT-A77 II are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-51200..

77D versus A77 II MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
Canon 77D» APS-C 24.0 6000 40001080/60p23.613.397178Canon 77D
Sony A77 II« APS-C 24.0 6000 40001080/60p----Sony A77 II
Canon M50« » APS-C 24.0 6000 40004K/24p----Canon M50
Canon T7« » APS-C 24.0 6000 40001080/30p----Canon T7
Canon SL2« » APS-C 24.0 6000 40001080/60p23.613.4104179Canon SL2
Canon T7i« » APS-C 24.0 6000 40001080/60p----Canon T7i
Canon M5« » APS-C 24.0 6000 40001080/60p23.412.4126277Canon M5
Canon T6« » APS-C 17.9 5184 34561080/30p----Canon T6
Canon T6i« » APS-C 24.0 6000 40001080/60p22.712.091971Canon T6i
Canon T6s« » APS-C 24.0 6000 40001080/30p22.612.091570Canon T6s
Canon T4i« » APS-C 17.9 5184 34561080/30p21.711.272262Canon T4i
Canon T3i« » APS-C 17.9 5184 34561080/30p22.111.579365Canon T3i
Nikon D7100« » APS-C 24.0 6000 40001080/60p24.213.7125683Nikon D7100
Pentax K-3« » APS-C 24.1 6016 40001080/60i23.713.4121680Pentax K-3
Sony A6500« » APS-C 24.0 6000 40004K/30p24.513.7140585Sony A6500
Sony A7 II« » Full Frame 24.0 6000 40001080/60p24.913.6244990Sony A7 II
Sony A77« » APS-C 24.0 6000 40001080/60p24.013.280178Sony A77

Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, and both provide the same movie specifications (1080/60p).

 

Feature comparison: Canon 77D vs Sony A77 II

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the A77 II has an electronic viewfinder (2359k 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 adjacent table lists some of the other core features of the Canon 77D and Sony A77 II along with similar information for a selection of comparators.

Core Features
  Camera
Model
Viewfinder
(Type or
'000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
Camera
Model
Canon 77D»optical Y 3.0 1040 swivel Y 4000 6.0 Y n Canon 77D
Sony A77 II«2359 Y 3.0 1229 full-flex n 8000 12.0 Y Y Sony A77 II
Canon M50« »2360 n 3.0 1040 swivel Y 4000 10.0 Y n Canon M50
Canon T7« »optical n 3.0 920 fixed n 4000 3.0 Y n Canon T7
Canon SL2« »optical n 3.0 1040 swivel Y 4000 5.0 Y n Canon SL2
Canon T7i« »optical n 3.0 1040 swivel Y 4000 6.0 Y n Canon T7i
Canon M5« »2360 n 3.2 1620 tilting Y 4000 9.0 Y n Canon M5
Canon T6« »optical n 3.0 920 fixed n 4000 3.0 Y n Canon T6
Canon T6i« »optical n 3.0 1040 swivel Y 4000 5.0 Y n Canon T6i
Canon T6s« »optical Y 3.0 1040 swivel Y 4000 5.0 Y n Canon T6s
Canon T4i« »optical n 3.0 1040 swivel Y 4000 5.0 Y n Canon T4i
Canon T3i« »optical n 3.0 1040 swivel n 4000 3.7 Y n Canon T3i
Nikon D7100« »optical Y 3.2 1229 fixed n 8000 6.0 Y n Nikon D7100
Pentax K-3« »optical Y 3.2 1037 fixed n 8000 8.3 Y Y Pentax K-3
Sony A6500« »2359 n 3.0 922 tilting Y 4000 11.0 Y Y Sony A6500
Sony A7 II« »2400 n 3.0 1230 tilting n 8000 5.0 n Y Sony A7 II
Sony A77« »2359 Y 3.0 921 full-flex n 8000 12.0 Y Y Sony A77

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The 77D 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 77D writes its imaging data to SDXC cards, while the A77 II uses SDXC or Memory Stick PRO Duo cards.

Connectivity comparison: Canon 77D vs Sony A77 II

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 SLT-A77 II and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
Canon 77D»YstereomonoY-mini2.0YYYCanon 77D
Sony A77 II«YstereomonoY-mini2.0YY-Sony A77 II
Canon M50« »YstereomonoY-micro2.0YYYCanon M50
Canon T7« »Ymonomono--mini2.0YY-Canon T7
Canon SL2« »YstereomonoY-mini2.0YYYCanon SL2
Canon T7i« »YstereomonoY-mini2.0YYYCanon T7i
Canon M5« »YstereomonoY-mini2.0YYYCanon M5
Canon T6« »Ymonomono--mini2.0YY-Canon T6
Canon T6i« »YstereomonoY-mini2.0YY-Canon T6i
Canon T6s« »YstereomonoY-mini2.0YY-Canon T6s
Canon T4i« »YstereomonoY-mini2.0---Canon T4i
Canon T3i« »YmonomonoY-mini2.0---Canon T3i
Nikon D7100« »YstereomonoYYmini2.0---Nikon D7100
Pentax K-3« »YmonomonoYYmini3.0---Pentax K-3
Sony A6500« »YstereomonoY-micro2.0YY-Sony A6500
Sony A7 II« »YstereomonoYYmicro2.0YY-Sony A7 II
Sony A77« »YstereomonoY-mini2.0---Sony A77

Both the 77D and the A77 II are recent models that feature in their makers' current product line-up. The A77 II replaced the earlier Sony A77, while the 77D followed on from the Canon T6s.


Review summary: Canon 77D vs Sony A77 II

So how do things add up? Which of the two cameras – the Canon 77D or the Sony A77 II – has the upper hand? A synthesis of the relative strong points of each of the models is listed below.

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Arguments in favor of the Canon EOS 77D:

  • Better video autofocus: Features on-sensor phase-detection for more confident movie 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.
  • More compact: Is smaller (131x100mm vs 143x104mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 107g or 17 percent) and hence easier to carry around.
  • Longer lasting: Can take more shots (600 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 segment (25 percent cheaper at launch).
  • More modern: Reflects 2 years and 9 months of technical progress since the A77 II launch.

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Advantages of the Sony Alpha SLT-A77 II:

  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More detailed LCD: Has a higher resolution rear screen (1229k vs 1040k dots).
  • Faster shutter: Has higher mechanical shutter speed (8000/sec vs 4000/sec) to freeze action.
  • Faster burst: Shoots at higher frequency (12 vs 6 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.
  • 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 77D emerges as the winner of the contest (9 : 7 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.

77D 09:07 A77 II

In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the handling experience and imaging performance when actually working with the 77D or the A77 II. 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 A77 II

This is where reviews by experts come in. The adjacent table relays the overall verdicts of several of the most popular camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). You can find the full text of the reviews by clicking on the site logo in the table header.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
Canon 77D»-82/1004.5/54.5/54/5 Feb 2017 899 i i Canon 77D
Sony A77 II«-80/1004.5/54/55/5 May 2014 1,199 i i Sony A77 II
Canon M50« »Rec79/100--3.5/5 Feb 2018 779 i i Canon M50
Canon T7« »rev-3.5/5-3.5/5 Feb 2018 449 i i Canon T7
Canon SL2« »HiRec78/1004.5/54.5/54.5/5 Jun 2017 549 i i Canon SL2
Canon T7i« »-80/1004.5/54/54/5 Feb 2017 749 i i Canon T7i
Canon M5« »Rec82/1004/54.5/54/5 Sep 2016 979 i i Canon M5
Canon T6« »rev73/1004/53.5/54/5 Mar 2016 449- i Canon T6
Canon T6i« »-75/1004.5/54.5/54.5/5 Feb 2015 749- i Canon T6i
Canon T6s« »Rec77/1004.5/54.5/54.5/5 Feb 2015 849- i Canon T6s
Canon T4i« »HiRec77/1004.5/54.5/54.5/5 Jun 2012 849- i Canon T4i
Canon T3i« »rev77/1004.5/55/54.5/5 Feb 2011 599- i Canon T3i
Nikon D7100« »HiRec85/1004.5/55/54.5/5 Feb 2013 1,199- i Nikon D7100
Pentax K-3« »-83/1005/54.5/55/5 Oct 2013 1,299- i Pentax K-3
Sony A6500« »HiRec85/1004.5/55/54.5/5 Oct 2016 1,399 i i Sony A6500
Sony A7 II« »Rec82/1004.5/55/55/5 Nov 2014 1,999- i Sony A7 II
Sony A77« »91/10081/100-4.5/55/5 Aug 2011 1,999- i Sony A77

The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date 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 are interested in seeing how other cameras pair up, just make your choice using the following search menu. An an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Canon 77D vs Sony A77 II

    Camera Specifications
    Camera Model Canon 77D 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 February 2017 May 2014
    Launch Price USD 899 USD 1199
    Sensor Specs
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor APS-C Sensor
    Sensor Size 22.3 x 14.9 mm 23.5 x 14.9 mm
    Sensor Area 332.27 mm2 366.6 mm2
    Sensor Diagonal 26.8 mm 28.2 mm
    Crop Factor 1.6 1.5
    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
    Movie Capability 1080/60p Video 1080/60p Video
    ISO Setting 100-25600 ISO 100-25600 ISO
    ISO Boost 100-51200 ISO 50-51200 ISO
    Image Processor DIGIC 7 BIONZ X
    Screen Specs
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Resolution n/a 2359k dots
    Top-Level Screen Control Panel Control Panel
    Rear LCD Size 3.0 inch 3.0 inch
    LCD Resolution 1040k dots 1229k dots
    LCD Attachment Swivel screen Fully flexible screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs
    Maximum Shutter Speed 1/4000s 1/8000s
    Continuous Shooting 6 shutter flaps/s 12 shutter flaps/s
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Build-in Flash Build-in Flash
    Storage Medium SDXC cards MS or SDXC cards
    Connectivity Specs
    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 NFC built-in NFC built-in
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs
    Environmental SealingNot weather sealedWeathersealed body
    Battery Type LP-E17 power pack NP-FM500H power pack
    Battery Life (CIPA)600 shots per charge480 shots per charge
    Body Dimensions 131 x 100 x 76 mm
    (5.2 x 3.9 x 3.0 in)
    143 x 104 x 81 mm
    (5.6 x 4.1 x 3.2 in)
    Camera Weight 540 g (19.0 oz) 647 g (22.8 oz)

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