Canon SL2 versus Olympus E-M10 III
The Canon EOS Rebel SL2 (called Canon 200D in some regions) and the Olympus OM-D E-M10 Mark III are two digital cameras that were revealed to the public, respectively, in June 2017 and August 2017. The SL2 is a DSLR, while the E-M10 III is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (SL2) and a Four Thirds sensor. The Canon has a resolution of 24 megapixel, whereas the Olympus provides 15.9 MP.
The side-by-side display below illustrates the physical size and weight of the Canon SL2 and the Olympus E-M10 III. Three consecutive views from the front, the top, and the rear side are shown. All size dimensions are rounded to the nearest millimeter. If you prefer, you can also use the toggle button to switch to a comparison in percentage terms (in this case, the camera on the left side – the SL2 – represents the basis for the calculations across all the size and weight measures).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-M10 III is notably smaller (10 percent) than the Canon SL2. Moreover, the E-M10 III is markedly lighter (9 percent) than the SL2. In this context, it is worth noting that neither the SL2 nor the E-M10 III 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. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can find an overview of optics for the two cameras in the Canon EF Lens Catalog (SL2) and the Micro Four Thirds Lens Catalog (E-M10 III). Mirrorless cameras, such as the E-M10 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.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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 comparisons there.
|Camera Body Specifications
|Canon SL2 (⇒ rgt)||122 mm||93 mm||70 mm||453 g||650||no||2017||549||latest||check|
|Olympus E-M10 III (⇒ lft)||122 mm||84 mm||50 mm||410 g||330||no||2017||649||latest||check|
|Canon T7 (⇒ lft | rgt)||129 mm||101 mm||78 mm||475 g||500||no||2018||449||latest||check|
|Canon G9 X Mark II (⇒ lft | rgt)||98 mm||58 mm||31 mm||206 g||235||no||2017||529||latest||check|
|Canon 77D (⇒ lft | rgt)||131 mm||100 mm||76 mm||540 g||600||no||2017||899||latest||check|
|Canon M100 (⇒ lft | rgt)||108 mm||67 mm||35 mm||302 g||295||no||2017||499||latest||check|
|Canon M6 (⇒ lft | rgt)||112 mm||68 mm||45 mm||390 g||295||no||2017||779||latest||check|
|Canon T7i (⇒ lft | rgt)||131 mm||100 mm||76 mm||532 g||600||no||2017||749||latest||check|
|Canon M5 (⇒ lft | rgt)||116 mm||89 mm||61 mm||427 g||295||no||2016||979||latest||check|
|Canon T6i (⇒ lft | rgt)||132 mm||101 mm||78 mm||555 g||440||no||2015||749||discont.||check|
|Canon SL1 (⇒ lft | rgt)||117 mm||91 mm||69 mm||407 g||380||no||2013||549||discont.||check|
|Nikon D3400 (⇒ lft | rgt)||124 mm||98 mm||76 mm||445 g||1200||no||2016||499||latest||check|
|Olympus E-PL9 (⇒ lft | rgt)||117 mm||68 mm||39 mm||380 g||350||no||2018||549||latest||check|
|Olympus E-PL8 (⇒ lft | rgt)||115 mm||67 mm||38 mm||357 g||350||no||2016||549||discont.||check|
|Olympus E-M10 (⇒ lft | rgt)||119 mm||82 mm||46 mm||396 g||320||no||2014||699||discont.||check|
|Olympus E-M1 (⇒ lft | rgt)||130 mm||94 mm||63 mm||497 g||350||YES||2013||1,399||discont.||check|
|Panasonic GX85 (⇒ lft | rgt)||122 mm||71 mm||44 mm||426 g||290||no||2016||799||latest||check|
The listed prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The SL2 was launched at a somewhat lower price (by 15 percent) than the E-M10 III, 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. 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 tend to be more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon SL2 features an APS-C sensor and the Olympus E-M10 III a Four Thirds sensor. The sensor area in the E-M10 III is 32 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 2.0. The sensor in the SL2 has a native 3:2 aspect ratio, while the one in the E-M10 III offers a 4:3 aspect.
With 24MP, the SL2 offers a higher resolution than the E-M10 III (15.9MP), but the SL2 has marginally smaller individual pixels (pixel pitch of 3.72μm versus 3.76μm for the E-M10 III). It is noteworthy in this context that the two cameras were released in close succession, so that their sensors are from the same technological generation. Coming back to sensor resolution, it should be mentioned that the E-M10 III has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
Consistent information on actual sensor performance is available from DXO Mark for most 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"). 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 SL2 (⇒ rgt)||APS-C||24.0||6000||4000||1080/60p||23.6||13.4||1041||79|
|Olympus E-M10 III (⇒ lft)||Four Thirds||15.9||4608||3456||4K/30p||..||..||..||..|
|Canon T7 (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/30p||..||..||..||..|
|Canon G9 X Mark II (⇒ lft | rgt)||1-inch||20.0||5472||3648||1080/60p||21.9||12.5||522||65|
|Canon 77D (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60p||..||..||..||..|
|Canon M100 (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60p||23.5||12.9||1272||78|
|Canon M6 (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60p||..||..||..||..|
|Canon T7i (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60p||..||..||..||..|
|Canon M5 (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60p||23.4||12.4||1262||77|
|Canon T6i (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60p||22.7||12.0||919||71|
|Canon SL1 (⇒ lft | rgt)||APS-C||17.9||5184||3456||1080/30p||21.8||11.3||843||63|
|Nikon D3400 (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60p||24.8||13.9||1192||86|
|Olympus E-PL9 (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||4K/30p||-||-||-||-|
|Olympus E-PL8 (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/30p||-||-||-||-|
|Olympus E-M10 (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/30p||22.8||12.3||884||72|
|Olympus E-M1 (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/30p||23.0||12.7||757||73|
|Panasonic GX85 (⇒ lft | rgt)||Four Thirds||15.8||4592||3448||4K/30p||22.9||12.6||662||71|
Many modern cameras are not only capable of taking still images, but can also record movies. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the E-M10 III provides a better video resolution than the SL2. It can shoot movie footage at 4K/30p, while the Canon is limited to 1080/60p.
Apart from body and sensor, cameras can and do differ across a range of features. For example, the E-M10 III has an electronic viewfinder (2360k dots), while the SL2 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 SL2 and Olympus E-M10 III along with similar information for a selection of comparators. The full specs-sheets can be found in the camera manual or, for example, in the dpreview camera hub.
|Canon SL2 (⇒ rgt)||optical||no||3.0||1040||swivel||YES||4000||5.0||9.8||no|
|Olympus E-M10 III (⇒ lft)||2360||no||3.0||1040||tilting||YES||4000||8.6||5.8||YES|
|Canon T7 (⇒ lft | rgt)||optical||no||3.0||920||fixed||no||4000||3.0||9.2||no|
|Canon G9 X Mark II (⇒ lft | rgt)||no||no||3.0||1040||fixed||YES||2000||8.2||6||YES|
|Canon 77D (⇒ lft | rgt)||optical||YES||3.0||1040||swivel||YES||4000||6.0||12||no|
|Canon M100 (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||4000||6.1||5||no|
|Canon M6 (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||4000||9.0||5||no|
|Canon T7i (⇒ lft | rgt)||optical||no||3.0||1040||swivel||YES||4000||6.0||12||no|
|Canon M5 (⇒ lft | rgt)||2360||no||3.2||1620||tilting||YES||4000||9.0||5||no|
|Canon T6i (⇒ lft | rgt)||optical||no||3.0||1040||swivel||YES||4000||5.0||12||no|
|Canon SL1 (⇒ lft | rgt)||optical||no||3.0||1040||fixed||YES||4000||4.9||9.4||no|
|Nikon D3400 (⇒ lft | rgt)||optical||no||3.0||921||fixed||no||4000||5.0||7||no|
|Olympus E-PL9 (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||4000||8.6||7.6||YES|
|Olympus E-PL8 (⇒ lft | rgt)||no||no||3.0||1037||tilting||YES||4000||8.0||no||YES|
|Olympus E-M10 (⇒ lft | rgt)||1440||no||3.0||1037||tilting||YES||4000||8.0||5.8||YES|
|Olympus E-M1 (⇒ lft | rgt)||2360||no||3.0||1037||tilting||YES||8000||10.0||no||YES|
|Panasonic GX85 (⇒ lft | rgt)||2765||no||3.0||1040||tilting||YES||4000||8.0||6||YES|
Both the SL2 and the E-M10 III are current models that good online retailers will have in stock. You can check the latest prices, for example, at amazon. The SL2 replaced the earlier Canon SL1, while the E-M10 III followed on from the Olympus E-M10 II.
So what conclusions can be drawn? Is the Canon SL2 better than the Olympus E-M10 III or vice versa? A synthesis of the relative strong points of each of the models is listed below.
Advantages of the Canon EOS Rebel SL2:
- More detail: Offers more megapixels (24 vs 15.9MP) with a 25% higher linear resolution.
- 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.
- More flexible LCD: Has swivel screen for odd-angle shots in portrait or landscape orientation.
- Longer lasting: Can take more shots (650 versus 330) on a single battery charge.
- More affordable: Was introduced into a lower priced segment (15 percent cheaper at launch).
Arguments in favor of the Olympus OM-D E-M10 Mark III:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
- More framing info: Has an electronic viewfinder that displays shooting data.
- Faster burst: Shoots at higher frequency (8.6 vs 5 flaps/sec) to capture the decisive moment.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- Sharper images: Has stabilization technology build-in to reduce the impact of hand-shake.
If the count of individual advantages (bullet points above) is taken as a guide, the match-up finishes in a tie (6 points each). 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.
In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it remains incomplete and does no justice, for example, to the way the SL2 or the E-M10 III handle or perform in practice. 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 expert reviews are important. The following table reports the overall rankings of the cameras as published by some of the major camera review sites. The detailed reviews can be accessed, respectively, on the websites of cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.
|Canon SL2 (⇒ rgt)||HiRec||78/100 Silver||4.5/5||-||4.5/5||2017||549||latest||check|
|Olympus E-M10 III (⇒ lft)||Rec||80/100||4.5/5||..||4.5/5||2017||649||latest||check|
|Canon T7 (⇒ lft | rgt)||..||..||..||..||..||2018||449||latest||check|
|Canon G9 X Mark II (⇒ lft | rgt)||..||75/100||4.5/5||4.5/5||4.5/5||2017||529||latest||check|
|Canon 77D (⇒ lft | rgt)||..||82/100 Silver||4.5/5||4.5/5||4/5||2017||899||latest||check|
|Canon M100 (⇒ lft | rgt)||Rec||..||4/5||..||3.5/5||2017||499||latest||check|
|Canon M6 (⇒ lft | rgt)||-||80/100 Silver||4/5||4.5/5||4/5||2017||779||latest||check|
|Canon T7i (⇒ lft | rgt)||..||80/100 Gold||4.5/5||..||4/5||2017||749||latest||check|
|Canon M5 (⇒ lft | rgt)||Rec||82/100 Silver||4/5||4.5/5||4/5||2016||979||latest||check|
|Canon T6i (⇒ lft | rgt)||-||75/100||4.5/5||4.5/5||4.5/5||2015||749||discont.||check|
|Canon SL1 (⇒ lft | rgt)||Rec||78/100 Gold||4/5||4/5||4/5||2013||549||discont.||check|
|Nikon D3400 (⇒ lft | rgt)||Rec||76/100||4/5||4.5/5||4.5/5||2016||499||latest||check|
|Olympus E-PL9 (⇒ lft | rgt)||..||..||..||..||4/5||2018||549||latest||check|
|Olympus E-PL8 (⇒ lft | rgt)||-||-||4.5/5||-||4/5||2016||549||discont.||check|
|Olympus E-M10 (⇒ lft | rgt)||-||80/100 Gold||5/5||4.5/5||5/5||2014||699||discont.||check|
|Olympus E-M1 (⇒ lft | rgt)||HiRec||84/100 Gold||4.5/5||4.5/5||4.5/5||2013||1,399||discont.||check|
|Panasonic GX85 (⇒ lft | rgt)||HiRec||82/100 Silver||5/5||4.5/5||5/5||2016||799||latest||check|
The review scores listed above should be treated 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. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
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