Canon 77D vs Sony A5100
The Canon EOS 77D and the Sony Alpha A5100 are two digital cameras that were revealed to the public, respectively, in February 2017 and August 2014. The 77D is a DSLR, while the A5100 is a mirrorless interchangeable lens camera. Both cameras 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 77D and the Sony Alpha A5100? 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 side-by-side display below illustrates the physical size and weight of the Canon 77D and the Sony A5100. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth measures are rounded to the nearest millimeter.
The A5100 can be obtained in two different colors (black, white), while the 77D 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 A5100 is considerably smaller (47 percent) than the Canon 77D. Moreover, the A5100 is substantially lighter (48 percent) than the 77D. In this context, it is worth noting that neither the 77D nor the A5100 are weather-sealed.
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. Both cameras have similarly sized sensors, but DSLRs have a larger flange-to-focal plane distance than mirrorless cameras, which imposes contraints on the optical engineering process and generally leads to bigger and heavier lenses. You can compare the optics available for the two cameras in the Canon EF Lens Catalog (77D) and the Sony E-Mount Lens Catalog (A5100). Mirrorless cameras, such as the A5100, 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 A5100 can take 400 images on a single charge of its NP-FW50 power pack. The power pack in the A5100 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. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.
|1.||Canon 77D||131 mm||100 mm||76 mm||540 g||600||n||Feb 2017||899|
|2.||Sony A5100||110 mm||63 mm||36 mm||283 g||400||n||Aug 2014||549|
|3.||Canon 850D||131 mm||103 mm||76 mm||515 g||800||n||Feb 2020||749|
|4.||Canon 2000D||129 mm||101 mm||78 mm||475 g||500||n||Feb 2018||449|
|5.||Canon 200D||122 mm||93 mm||70 mm||453 g||650||n||Jun 2017||549|
|6.||Canon 800D||131 mm||100 mm||76 mm||532 g||600||n||Feb 2017||749|
|7.||Canon M6||112 mm||68 mm||45 mm||390 g||295||n||Feb 2017||779|
|8.||Canon M100||108 mm||67 mm||35 mm||302 g||295||n||Aug 2017||499|
|9.||Canon 80D||139 mm||105 mm||79 mm||730 g||960||Y||Feb 2016||1,199|
|10.||Canon M5||116 mm||89 mm||61 mm||427 g||295||n||Sep 2016||979|
|11.||Canon 750D||132 mm||101 mm||78 mm||555 g||440||n||Feb 2015||749|
|12.||Canon 760D||132 mm||101 mm||78 mm||565 g||440||n||Feb 2015||649|
|13.||Sony RX100 IV||102 mm||58 mm||41 mm||298 g||280||n||Jun 2015||999|
|14.||Sony A5000||110 mm||63 mm||36 mm||269 g||420||n||Jan 2014||449|
|15.||Sony A6000||120 mm||67 mm||45 mm||344 g||360||n||Feb 2014||599|
|16.||Sony NEX-3N||110 mm||62 mm||35 mm||269 g||480||n||Feb 2013||499|
|17.||Sony RX100||102 mm||58 mm||36 mm||240 g||330||n||Jun 2012||649|
|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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The A5100 was launched at a markedly lower price (by 39 percent) than the 77D, 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. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have 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 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 A5100 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.
Even though the A5100 has a larger sensor, both cameras offer the same resolution of 24 megapixels. This implies that the A5100 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 5 months) than the A5100, and its sensor will have benefitted from technological advances during this time that at least partly compensate for the smaller pixel size.
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 A5100 are ISO 100 to ISO 25600 (no boost).
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 Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
|13.||Sony RX100 IV||1-inch||20.0||5472||3648||4K/30p||22.8||12.6||591||70|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. 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).
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the 77D has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the A5100 relies on live view and the rear LCD for framing. The table below summarizes some of the other core capabilities of the Canon 77D and Sony A5100 in connection with corresponding information for a sample of similar cameras.
|1.||Canon 77D||optical||Y||3.0 / 1040||swivel||Y||1/4000s||6.0||Y||n|
|2.||Sony A5100||none||n||3.0 / 922||tilting||Y||1/4000s||6.0||Y||n|
|3.||Canon 850D||optical||n||3.0 / 1040||swivel||Y||1/4000s||7.5||Y||n|
|4.||Canon 2000D||optical||n||3.0 / 920||fixed||n||1/4000s||3.0||Y||n|
|5.||Canon 200D||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0||Y||n|
|6.||Canon 800D||optical||n||3.0 / 1040||swivel||Y||1/4000s||6.0||Y||n|
|7.||Canon M6||optional||n||3.0 / 1040||tilting||Y||1/4000s||9.0||Y||n|
|8.||Canon M100||none||n||3.0 / 1040||tilting||Y||1/4000s||6.1||Y||n|
|9.||Canon 80D||optical||Y||3.0 / 1040||swivel||Y||1/8000s||7.0||Y||n|
|10.||Canon M5||2360||n||3.2 / 1620||tilting||Y||1/4000s||9.0||Y||n|
|11.||Canon 750D||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0||Y||n|
|12.||Canon 760D||optical||Y||3.0 / 1040||swivel||Y||1/4000s||5.0||Y||n|
|13.||Sony RX100 IV||2359||n||3.0 / 1228||tilting||n||1/2000s||16.0||Y||Y|
|14.||Sony A5000||none||n||3.0 / 461||tilting||n||1/4000s||3.5||Y||n|
|15.||Sony A6000||1440||n||3.0 / 922||tilting||n||1/4000s||11.0||Y||n|
|16.||Sony NEX-3N||optional||n||3.0 / 460||tilting||n||1/4000s||4.0||Y||n|
|17.||Sony RX100||none||n||3.0 / 1229||fixed||n||1/2000s||10.0||Y||Y|
One feature that is present on the 77D, but is missing on the A5100 is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.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 77D 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 77D writes its imaging data to SDXC cards, while the A5100 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 77D and Sony Alpha A5100 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon 77D||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|2.||Sony A5100||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|3.||Canon 850D||Y||stereo / mono||Y||-||mini||2.0||Y||-||Y|
|4.||Canon 2000D||Y||mono / mono||-||-||mini||2.0||Y||Y||-|
|5.||Canon 200D||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|6.||Canon 800D||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|7.||Canon M6||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|8.||Canon M100||-||stereo / mono||-||-||micro||2.0||Y||Y||Y|
|9.||Canon 80D||Y||stereo / mono||Y||Y||mini||2.0||Y||Y||-|
|10.||Canon M5||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|11.||Canon 750D||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|12.||Canon 760D||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|13.||Sony RX100 IV||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|14.||Sony A5000||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|15.||Sony A6000||Y||stereo / mono||-||-||micro||2.0||Y||Y||-|
|16.||Sony NEX-3N||-||stereo / mono||-||-||micro||2.0||-||-||-|
|17.||Sony RX100||-||stereo / mono||-||-||micro||2.0||-||-||-|
It is notable that the 77D has a hotshoe, while the A5100 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.
Both the 77D and the A5100 are recent models that are part of the current product line-up. The A5100 replaced the earlier Sony A5000, while the 77D followed on from the Canon T6s. 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 what conclusions can be drawn? Is the Canon 77D better than the Sony A5100 or vice versa? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the Canon EOS 77D:
- More dynamic range: Captures a larger spectrum of light and dark details (0.6 EV of extra DR).
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Easier framing: Has an optical viewfinder for image composition and settings control.
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- More detailed LCD: Has a higher resolution rear screen (1040k vs 922k dots).
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Longer lasting: Can take more shots (600 versus 400) on a single battery charge.
- Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- More modern: Reflects 2 years and 5 months of technical progress since the A5100 launch.
Advantages of the Sony Alpha A5100:
- Better low-light sensitivity: Can shoot in dim conditions (0.5 stops ISO advantage).
- More compact: Is smaller (110x63mm vs 131x100mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 257g or 48 percent) and is thus easier to take along.
- Easier travel charging: Can be conveniently charged via its USB port.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- More affordable: Was introduced into a lower priced category (39 percent cheaper at launch).
- More heavily discounted: Has been around for much longer (launched in August 2014).
If the count of relative strengths (bullet points above) is taken as a measure, the 77D is the clear winner of the match-up (11 : 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. A professional sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape 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 A5100 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the 77D and the A5100 in practical situations. 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 hands-on reviews by experts 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], 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 77D||4.5/5||..||4/5||82/100||4.5/5||4/5||Feb 2017||899|
|2.||Sony A5100||4.5/5||+||..||..||4.5/5||5/5||Aug 2014||549|
|3.||Canon 850D||4/5||+||3/5||80/100||4/5||3.5/5||Feb 2020||749|
|4.||Canon 2000D||..||o||..||..||3.5/5||3.5/5||Feb 2018||449|
|5.||Canon 200D||4/5||+ +||4/5||78/100||4.5/5||4.5/5||Jun 2017||549|
|6.||Canon 800D||4.5/5||..||3.5/5||80/100||4.5/5||4/5||Feb 2017||749|
|7.||Canon M6||..||..||..||80/100||4/5||4/5||Feb 2017||779|
|8.||Canon M100||3/5||+||..||..||4/5||3.5/5||Aug 2017||499|
|9.||Canon 80D||4/5||+ +||4.5/5||84/100||4.5/5||4.5/5||Feb 2016||1,199|
|10.||Canon M5||4/5||+||4/5||82/100||4/5||4/5||Sep 2016||979|
|11.||Canon 750D||5/5||..||..||75/100||4.5/5||4.5/5||Feb 2015||749|
|12.||Canon 760D||5/5||+||..||77/100||4.5/5||4.5/5||Feb 2015||649|
|13.||Sony RX100 IV||4.5/5||+ +||..||85/100||4/5||4.5/5||Jun 2015||999|
|14.||Sony A5000||3/5||+||..||..||4.5/5||4.5/5||Jan 2014||449|
|15.||Sony A6000||5/5||+||4.5/5||80/100||4.5/5||5/5||Feb 2014||599|
|16.||Sony NEX-3N||3/5||..||..||..||4.5/5||4.5/5||Feb 2013||499|
|17.||Sony RX100||5/5||+ +||..||78/100||4/5||5/5||Jun 2012||649|
|Notes: (+ +) 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. 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 are interested in seeing how other cameras pair up, just make a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
- Canon 1D X Mark II vs Sony A5100
- Canon 5DS vs Canon 77D
- Canon 77D vs Nikon P1000
- Canon 77D vs Olympus E-300
- Canon 77D vs Olympus E-510
- Canon 77D vs Olympus E-PL3
- Canon 77D vs Panasonic GF1
- Canon G7 X Mark III vs Sony A5100
- Canon SL1 vs Sony A5100
- Canon T2i vs Sony A5100
- Fujifilm X-A2 vs Sony A5100
- Fujifilm X-A7 vs Sony A5100
Specifications: Canon 77D vs Sony A5100
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 A5100|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Canon EF mount lenses||Sony E mount lenses|
|Launch Date||February 2017||August 2014|
|Launch Price||USD 899||USD 549|
|Sensor Specs||Canon 77D||Sony A5100|
|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||1080/60p Video||1080/60p Video|
|ISO Setting||100 - 25,600 ISO||100 - 25,600 ISO|
|ISO Boost||100 - 51,200 ISO||no Enhancement|
|Image Processor||DIGIC 7||BIONZ X|
|DXO Sensor Quality (score)||78||80|
|DXO Color Depth (bits)||23.6||23.8|
|DXO Dynamic Range (EV)||13.3||12.7|
|DXO Low Light (ISO)||971||1347|
|Screen Specs||Canon 77D||Sony A5100|
|Viewfinder Type||Optical viewfinder||no viewfinder|
|Viewfinder Field of View||95%|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1040k dots||922k dots|
|LCD Attachment||Swivel screen||Tilting screen|
|Shooting Specs||Canon 77D||Sony A5100|
|Focus System||Phase-detect AF||On-Sensor Phase-detect|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/4000s|
|Continuous Shooting||6 shutter flaps/s||6 shutter flaps/s|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||SDXC cards||MS or SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-I||UHS-I|
|Connectivity Specs||Canon 77D||Sony A5100|
|External Flash||Hotshoe||no Hotshoe|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||micro HDMI|
|Microphone Port||External MIC port||no MIC socket|
|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||Canon 77D||Sony A5100|
|Battery Life (CIPA)||600 shots per charge||400 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)
110 x 63 x 36 mm
(4.3 x 2.5 x 1.4 in)
|Camera Weight||540 g (19.0 oz)||283 g (10.0 oz)|
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