Canon 77D vs SL3
The Canon EOS 77D and the Canon EOS Rebel SL3 (labelled Canon 250D in some countries) are two digital cameras that were announced, respectively, in February 2017 and April 2019. 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.
|Canon 77D||Canon SL3|
|Digital single lens reflex||Digital single lens reflex|
|Canon EF mount lenses||Canon EF mount lenses|
|24 MP, APS-C Sensor||24 MP, APS-C Sensor|
|1080/60p Video||4K/25p Video|
|ISO 100-25600 (100-51200)||ISO 100-25600 (100-51200)|
|Optical viewfinder||Optical viewfinder|
|3.0" LCD, 1040k dots||3.0" LCD, 1040k dots|
|Swivel touchscreen||Swivel touchscreen|
|6 shutter flaps per second||5 shutter flaps per second|
|600 shots per battery charge||1070 shots per battery charge|
|131 x 100 x 76 mm, 540 g||122 x 93 x 70 mm, 449 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 77D and the Canon EOS Rebel SL3? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.
An illustration of the physical size and weight of the Canon 77D and the Canon SL3 is provided 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 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 Canon SL3 is notably smaller (13 percent) than the Canon 77D. Moreover, the SL3 is markedly lighter (17 percent) than the 77D. In this context, it is worth noting that neither the 77D nor the SL3 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. In this particular case, both cameras feature the same lens mount, so that they can use the same lenses. You can compare the optics available in the Canon EF Lens Catalog.
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.
|Canon 77D»||5.2 in||3.9 in||3.0 in||19.0 oz||600||n||Feb 2017||899||Canon 77D|
|Canon SL3«||4.8 in||3.7 in||2.8 in||15.8 oz||1070||n||Apr 2019||599||Canon SL3|
|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 SL1« »||4.6 in||3.6 in||2.7 in||14.4 oz||380||n||Mar 2013||549||-||Canon SL1|
|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|
|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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The SL3 was launched at a markedly lower price (by 33 percent) than the 77D, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.
The size of the 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. 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 associated with larger, more expensive camera bodies and lenses.
Both cameras under consideration feature an APS-C sensor and have a format factor (sometimes also referred to as "crop factor") of 1.6. Within the spectrum of camera sensors, this places the review cameras among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Technology-wise, the SL3 uses a more advanced image processing engine (DIGIC 8) than the 77D (DIGIC 7), with benefits for noise reduction, color accuracy, and processing speed.
The two cameras under review do not only share the same sensor size, but also offer an identical resolution of 24 megapixels. This similarity in sensor specs implies that both the 77D and the SL3 have the same pixel density, as well as the same pixel size. It should, however, be noted that the SL3 is much more recent (by 2 years and 1 month) than the 77D, and its sensor will have benefitted from technological advances during this time.
The Canon EOS 77D has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 100-51200. The Canon EOS Rebel SL3 offers exactly the same ISO settings.
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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"). The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
|Canon 77D»||APS-C||24.0||6000||4000||1080/60p||23.6||13.3||971||78||Canon 77D|
|Canon SL3«||APS-C||24.0||6000||4000||4K/25p||-||-||-||-||Canon SL3|
|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 SL1« »||APS-C||17.9||5184||3456||1080/30p||21.8||11.3||843||63||Canon SL1|
|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|
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 better video resolution than the 77D. It can shoot movie footage at 4K/25p, while the 77D is limited to 1080/60p.
Apart from body and sensor, cameras can and do differ across a range of features. The 77D and the SL3 are similar in the sense that both have an optical viewfinder. The latter is useful for getting a clear image for framing even in brightly lit environments. The viewfinders of both cameras offer the same field of view (95%), but the viewfinder of the SL3 has a higher magnification than the one of the 77D (0.54x vs 0.51x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Canon 77D and Canon SL3 in connection with corresponding information for a sample of similar cameras.
|Canon 77D»||optical||Y||3.0||1040||swivel||Y||1/4000s||6.0||Y||n||Canon 77D|
|Canon SL3«||optical||n||3.0||1040||swivel||Y||1/4000s||5.0||Y||n||Canon SL3|
|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 SL1« »||optical||n||3.0||1040||fixed||Y||1/4000s||4.9||Y||n||Canon SL1|
|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|
One feature that is present on the 77D, but is missing on the SL3 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 and the Canon SL3 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.
Concerning the storage of imaging data, both the 77D and the SL3 write their files to SDXC 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 Canon EOS Rebel SL3 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|
|Canon SL3«||Y||stereo||mono||Y||-||mini||2.0||Y||-||Y||Canon SL3|
|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 SL1« »||Y||mono||mono||Y||-||mini||2.0||-||-||-||Canon SL1|
|Canon T4i« »||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Canon T4i|
|Canon T3i« »||Y||mono||mono||Y||-||mini||2.0||-||-||-||Canon T3i|
Both the 77D and the SL3 are recent models that are part of the current product line-up. The 77D replaced the earlier Canon T6s, while the SL3 followed on from the Canon SL2. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon website.
So what conclusions can be drawn? Which of the two cameras – the Canon 77D or the Canon SL3 – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the Canon EOS 77D:
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- Faster burst: Shoots at higher frequency (6 vs 5 flaps/sec) to capture the decisive moment.
- Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
- More heavily discounted: Has been available for much longer (launched in February 2017).
Advantages of the Canon EOS Rebel SL3:
- Better jpgs: Has a more modern image processing engine (DIGIC 8 vs DIGIC 7).
- Better video: Provides higher definition movie capture (4K/25p vs 1080/60p).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.54x vs 0.51x).
- More compact: Is smaller (122x93mm vs 131x100mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 91g or 17 percent) and is thus easier to take along.
- Longer lasting: Gets more shots (1070 versus 600) out of a single battery charge.
- More affordable: Was introduced into a lower priced category (33 percent cheaper at launch).
- More modern: Reflects 2 years and 1 month of technical progress since the 77D launch.
If the count of relative strengths (bullet points above) is taken as a measure, the SL3 is the clear winner of the contest (8 : 4 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 Canon SL3 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 remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the 77D or the SL3. 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 where reviews by experts come in. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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|
|Canon SL3«||o||79/100||4/5||-||4/5||Apr 2019||599||Canon SL3|
|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 SL1« »||+||78/100||4/5||4/5||4/5||Mar 2013||549||-||Canon SL1|
|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|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (-) not available.|
The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. Thus, a score needs to be put into the context of the launch date and the launch price 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 your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
Specifications: Canon 77D vs Canon SL3
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||Canon SL3|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Canon EF mount lenses|
|Launch Date||February 2017||April 2019|
|Launch Price||USD 899||USD 599|
|Sensor Specs||Canon 77D||Canon SL3|
|Sensor Format||APS-C Sensor||APS-C Sensor|
|Sensor Size||22.3 x 14.9 mm||22.3 x 14.9 mm|
|Sensor Area||332.27 mm2||332.27 mm2|
|Sensor Diagonal||26.8 mm||26.8 mm|
|Sensor Resolution||24 Megapixels||24 Megapixels|
|Image Resolution||6000 x 4000 pixels||6000 x 4000 pixels|
|Pixel Pitch||3.72 μm||3.72 μm|
|Pixel Density||7.22 MP/cm2||7.22 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/60p Video||4K/25p Video|
|ISO Setting||100-25600 ISO||100-25600 ISO|
|ISO Boost||100-51200 ISO||100-51200 ISO|
|Image Processor||DIGIC 7||DIGIC 8|
|DXO Sensor Quality (score)||78||..|
|DXO Color Depth (bits)||23.6||..|
|DXO Dynamic Range (EV)||13.3||..|
|DXO Low Light (ISO)||971||..|
|Screen Specs||Canon 77D||Canon SL3|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||95%||95%|
|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||1040k dots|
|LCD Attachment||Swivel screen||Swivel screen|
|Shooting Specs||Canon 77D||Canon SL3|
|Autofocus System||Phase-detect AF||Phase-detect AF|
|Continuous Shooting||6 shutter flaps/s||5 shutter flaps/s|
|Shutter Life Expectancy||100 000 actuations||100 000 actuations|
|Time-Lapse Photography||Intervalometer built-in||Intervalometer built-in|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-I||UHS-I|
|Connectivity Specs||Canon 77D||Canon SL3|
|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||no NFC|
|Bluetooth Support||Bluetooth built-in||Bluetooth built-in|
|Body Specs||Canon 77D||Canon SL3|
|Battery Life (CIPA)||600 shots per charge||1070 shots per charge|
131 x 100 x 76 mm
(5.2 x 3.9 x 3.0 in)
122 x 93 x 70 mm
(4.8 x 3.7 x 2.8 in)
|Camera Weight||540 g (19.0 oz)||449 g (15.8 oz)|
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