Canon M6 Mark II vs Olympus E-M1 III
The Canon EOS M6 Mark II and the Olympus OM-D E-M1 Mark III are two digital cameras that were officially introduced, respectively, in August 2019 and February 2020. Both the M6 Mark II and the E-M1 III are mirrorless interchangeable lens cameras that are based on an APS-C (M6 Mark II) and a Four Thirds (E-M1 III) sensor. The Canon has a resolution of 32.3 megapixels, whereas the Olympus provides 20.2 MP.
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 M6 Mark II and the Olympus OM-D E-M1 Mark 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.
The physical size and weight of the Canon M6 Mark II and the Olympus E-M1 III are illustrated in the side-by-side display below. 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 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 Olympus E-M1 III is considerably larger (45 percent) than the Canon M6 Mark II. Moreover, the E-M1 III is substantially heavier (42 percent) than the M6 Mark II. It is noteworthy in this context that the E-M1 III is splash and dust-proof, while the M6 Mark II 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 M6 Mark II gets 305 shots out of its LP-E17 battery, while the E-M1 III can take 420 images on a single charge of its BLH-1 power pack. The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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 M6 Mark II||120 mm||70 mm||49 mm||408 g||305||n||Aug 2019||849|
|2.||Olympus E-M1 III||134 mm||91 mm||69 mm||580 g||420||Y||Feb 2020||1,799|
|3.||Canon M50 Mark II||116 mm||88 mm||59 mm||387 g||305||n||Oct 2020||599|
|4.||Canon M200||108 mm||67 mm||35 mm||299 g||315||n||Sep 2019||549|
|5.||Canon SL3||122 mm||93 mm||70 mm||449 g||1070||n||Apr 2019||599|
|6.||Canon G5 X Mark II||111 mm||61 mm||46 mm||340 g||230||n||Jul 2019||899|
|7.||Canon M50||116 mm||88 mm||59 mm||390 g||235||n||Feb 2018||779|
|8.||Canon T7||129 mm||101 mm||78 mm||475 g||500||n||Feb 2018||449|
|9.||Canon T100||129 mm||102 mm||77 mm||436 g||500||n||Feb 2018||399|
|10.||Canon M6||112 mm||68 mm||45 mm||390 g||295||n||Feb 2017||779|
|11.||Canon M5||116 mm||89 mm||61 mm||427 g||295||n||Sep 2016||979|
|12.||Canon M3||111 mm||68 mm||44 mm||366 g||250||n||Feb 2015||679|
|13.||Olympus E-M5 III||125 mm||85 mm||50 mm||414 g||310||Y||Oct 2019||1,199|
|14.||Olympus E-M1X||144 mm||147 mm||75 mm||997 g||870||Y||Jan 2019||2,999|
|15.||Olympus E-M1 II||134 mm||91 mm||67 mm||574 g||440||Y||Sep 2016||1,999|
|16.||Panasonic G95||130 mm||94 mm||77 mm||536 g||290||Y||Apr 2019||999|
|17.||Panasonic G9||137 mm||97 mm||92 mm||658 g||400||Y||Nov 2017||1,699|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
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 M6 Mark II was launched at a markedly lower price (by 53 percent) than the E-M1 III, 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. 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. 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.
Of the two cameras under consideration, the Canon M6 Mark II features an APS-C sensor and the Olympus E-M1 III a Four Thirds sensor. The sensor area in the E-M1 III is 33 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 M6 Mark II has a native 3:2 aspect ratio, while the one in the E-M1 III offers a 4:3 aspect.
In terms of underlying technology, both cameras are build around CMOS sensors.
With 32.3MP, the M6 Mark II offers a higher resolution than the E-M1 III (20.2MP), but the M6 Mark II has smaller individual pixels (pixel pitch of 3.23μm versus 3.34μm for the E-M1 III). Moreover, the E-M1 III is a somewhat more recent model (by 5 months) than the M6 Mark II, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the E-M1 III has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Canon M6 Mark II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the M6 Mark II for good quality output (200 dots per inch) amounts to 34.8 x 23.2 inches or 88.4 x 58.9 cm, for very good quality (250 dpi) 27.8 x 18.6 inches or 70.7 x 47.1 cm, and for excellent quality (300 dpi) 23.2 x 15.5 inches or 58.9 x 39.3 cm. The corresponding values for the Olympus E-M1 III are 25.9 x 19.4 inches or 65.8 x 49.4 cm for good quality, 20.7 x 15.6 inches or 52.7 x 39.5 cm for very good quality, and 17.3 x 13 inches or 43.9 x 32.9 cm for excellent quality prints.
Unlike the M6 Mark II, the E-M1 III has the capacity to capture high quality composite images (80MP) 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 M6 Mark II 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 Olympus OM-D E-M1 Mark III are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 64-25600.
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 following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
| DXO |
|1.||Canon M6 Mark II||APS-C||32.3||6960||4640||4K/30p||..||..||..||..|
|2.||Olympus E-M1 III||Four Thirds||20.2||5184||3888||4K/30p||..||..||..||..|
|3.||Canon M50 Mark II||APS-C||24.0||6000||4000||4K/24p||..||..||..||..|
|6.||Canon G5 X Mark II||1-inch||20.0||5472||3648||4K/30p||..||..||..||..|
|13.||Olympus E-M5 III||Four Thirds||20.2||5184||3888||4K/30p||..||..||..||..|
|14.||Olympus E-M1X||Four Thirds||20.2||5184||3888||4K/30p||..||..||..||..|
|15.||Olympus E-M1 II||Four Thirds||20.2||5184||3888||4K/30p||23.7||12.8||1312||80|
|16.||Panasonic G95||Four Thirds||20.2||5184||3888||4K/30p||..||..||..||..|
|17.||Panasonic G9||Four Thirds||20.2||5184||3888||4K/60p||..||..||..||..|
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, and both provide the same movie specifications (4K/30p).
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the E-M1 III has an electronic viewfinder (2360k dots), which can be very helpful when shooting in bright sunlight. In contrast, the M6 Mark II relies on live view and the rear LCD for framing. That said, the M6 Mark II can be equipped with an optional viewfinder – the EVF-DC2. The adjacent table lists some of the other core features of the Canon M6 Mark II and Olympus E-M1 III along with similar information for a selection of comparators.
|1.||Canon M6 Mark II||optional||n||3.0||1040||tilting||Y||1/4000s||14.0||Y||n|
|2.||Olympus E-M1 III||2360||n||3.0||1037||swivel||Y||1/8000s||18.0||n||Y|
|3.||Canon M50 Mark II||2360||n||3.0||1040||swivel||Y||1/4000s||10.0||Y||n|
|6.||Canon G5 X Mark II||2360||n||3.0||1040||tilting||Y||1/2000s||30||Y||Y|
|13.||Olympus E-M5 III||2360||n||3.0||1040||swivel||Y||1/8000s||10.0||n||Y|
|15.||Olympus E-M1 II||2360||n||3.0||1037||swivel||Y||1/8000s||18.0||n||Y|
One difference between the cameras concerns the presence of an on-board flash. The M6 Mark II has one, while the E-M1 III does not. While the built-in flash of the M6 Mark II is not very powerful, it can at times be useful as a fill-in light.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 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, both cameras under consideration feature an 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 M6 Mark II and the Olympus E-M1 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.
Concerning the storage of imaging data, both the M6 Mark II and the E-M1 III write their files to SDXC cards. The E-M1 III features dual card slots, which can be very useful in case a memory card fails. In contrast, the M6 Mark II only has one slot. Both the M6 Mark II and the E-M1 III support UHS-II cards, which provide for Ultra High Speed data transfer of up to 312 MB/s (the second slot of the E-M1 III only offers slower UHS-I transfer rates, though).
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 M6 Mark II and Olympus OM-D E-M1 Mark III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|1.||Canon M6 Mark II||Y||stereo||mono||Y||-||micro||2.0||Y||-||Y|
|2.||Olympus E-M1 III||Y||stereo||mono||Y||Y||micro||3.1||Y||-||Y|
|3.||Canon M50 Mark II||Y||stereo||mono||Y||-||micro||2.0||Y||-||Y|
|6.||Canon G5 X Mark II||-||stereo||mono||-||-||micro||3.1||Y||-||Y|
|13.||Olympus E-M5 III||Y||stereo||mono||Y||-||micro||2.0||Y||-||Y|
|15.||Olympus E-M1 II||Y||stereo||mono||Y||Y||micro||3.0||Y||-||-|
It is notable that the E-M1 III has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The M6 Mark II lacks such a headphone port.
Studio photographers will appreciate that the Olympus E-M1 III (unlike the M6 Mark II) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the M6 Mark II and the E-M1 III are recent models that are part of the current product line-up. The M6 Mark II replaced the earlier Canon M6, while the E-M1 III followed on from the Olympus E-M1 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 Olympus websites.
So what is the bottom line? Which of the two cameras – the Canon M6 Mark II or the Olympus E-M1 III – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.
Advantages of the Canon EOS M6 Mark II:
- More detail: Offers more megapixels (32.3 vs 20.2MP) with a 29% higher linear resolution.
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- More compact: Is smaller (120x70mm vs 134x91mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 172g or 30 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 (53 percent cheaper at launch).
- More heavily discounted: Has been on the market for longer (launched in August 2019).
Arguments in favor of the Olympus OM-D E-M1 Mark III:
- 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 sound control: Has a headphone port that enables audio monitoring while recording.
- Easier framing: Has an electronic viewfinder for image composition and settings control.
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (18 vs 14 flaps/sec) to capture the decisive moment.
- Longer lasting: Gets more shots (420 versus 305) out of a single battery charge.
- 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.
- 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.
- More modern: Was introduced somewhat (5 months) more recently.
If the count of relative strengths (bullet points above) is taken as a measure, the E-M1 III is the clear winner of the contest (14 : 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 wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro 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 M6 Mark II and the Olympus E-M1 III place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera listing whether the two cameras rank among the cream of the crop.
In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the M6 Mark II or the E-M1 III. 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 following table reports the overall ratings of the cameras as published by some of the major camera review sites (amateurphotographer [AP], cameralabs [CL], 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 M6 Mark II||..||+||85/100||4/5||4/5||Aug 2019||849|
|2.||Olympus E-M1 III||5/5||..||83/100||4.5/5||4/5||Feb 2020||1,799|
|3.||Canon M50 Mark II||..||..||..||4.5/5||3.5/5||Oct 2020||599|
|4.||Canon M200||..||+||79/100||4/5||4/5||Sep 2019||549|
|5.||Canon SL3||..||o||79/100||4/5||4/5||Apr 2019||599|
|6.||Canon G5 X Mark II||4/5||+||82/100||..||4/5||Jul 2019||899|
|7.||Canon M50||..||+||79/100||..||3.5/5||Feb 2018||779|
|8.||Canon T7||..||o||..||3.5/5||3.5/5||Feb 2018||449|
|9.||Canon T100||..||o||..||3.5/5||3.5/5||Feb 2018||399|
|10.||Canon M6||..||..||80/100||4/5||4/5||Feb 2017||779|
|11.||Canon M5||4/5||+||82/100||4/5||4/5||Sep 2016||979|
|12.||Canon M3||4/5||o||75/100||4.5/5||4/5||Feb 2015||679|
|13.||Olympus E-M5 III||5/5||+||82/100||4.5/5||4.5/5||Oct 2019||1,199|
|14.||Olympus E-M1X||4.5/5||o||..||4.5/5||..||Jan 2019||2,999|
|15.||Olympus E-M1 II||5/5||+ +||85/100||4.5/5||4.5/5||Sep 2016||1,999|
|16.||Panasonic G95||4.5/5||+||83/100||4.5/5||4.5/5||Apr 2019||999|
|17.||Panasonic G9||..||+ +||85/100||5/5||5/5||Nov 2017||1,699|
|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. Hence, a score should always be seen in the context of the camera's market launch date and its price, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, please note that some of the review sites have changed their methodology and reporting over time.
Other camera comparisons
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Specifications: Canon M6 Mark II vs Olympus E-M1 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 M6 Mark II||Olympus E-M1 III|
|Camera Type||Mirrorless system camera||Mirrorless system camera|
|Camera Lens||Canon EF-M mount lenses||Micro Four Thirds lenses|
|Launch Date||August 2019||February 2020|
|Launch Price||USD 849||USD 1,799|
|Sensor Specs||Canon M6 Mark II||Olympus E-M1 III|
|Sensor Format||APS-C Sensor||Four Thirds Sensor|
|Sensor Size||22.5 x 15.0 mm||17.3 x 13.0 mm|
|Sensor Area||337.5 mm2||224.9 mm2|
|Sensor Diagonal||27 mm||21.6 mm|
|Sensor Resolution||32.3 Megapixels||20.2 Megapixels|
|Image Resolution||6960 x 4640 pixels||5184 x 3888 pixels|
|Pixel Pitch||3.23 μm||3.34 μm|
|Pixel Density||9.57 MP/cm2||8.96 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||4K/30p Video||4K/30p Video|
|ISO Setting||100 - 25,600 ISO||200 - 25,600 ISO|
|ISO Boost||100 - 51,200 ISO||64 - 25,600 ISO|
|Image Processor||DIGIC 8||TruePic IX|
|Screen Specs||Canon M6 Mark II||Olympus E-M1 III|
|Viewfinder Type||Viewfinder optional||Electronic viewfinder|
|Viewfinder Field of View||100%|
|Viewfinder Resolution||2360k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1040k dots||1037k dots|
|LCD Attachment||Tilting screen||Swivel screen|
|Shooting Specs||Canon M6 Mark II||Olympus E-M1 III|
|Focus System||On-Sensor Phase-detect||On-Sensor Phase-detect|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/8000s|
|Continuous Shooting||14 shutter flaps/s||18 shutter flaps/s|
|Shutter Life Expectancy||100 000 actuations||400 000 actuations|
|Electronic Shutter||up to 1/16000s||up to 1/32000s|
|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||SDXC cards|
|Second Storage Option||Single card slot||Dual card slots|
|UHS card support||UHS-II||Single UHS-II|
|Connectivity Specs||Canon M6 Mark II||Olympus E-M1 III|
|Studio Flash||no PC Sync||PC Sync socket|
|USB Connector||USB 2.0||USB 3.1|
|HDMI Port||micro 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|
|Bluetooth Support||Bluetooth built-in||Bluetooth built-in|
|Body Specs||Canon M6 Mark II||Olympus E-M1 III|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||305 shots per charge||420 shots per charge|
|In-Camera Charging||USB charging||USB charging|
120 x 70 x 49 mm
(4.7 x 2.8 x 1.9 in)
134 x 91 x 69 mm
(5.3 x 3.6 x 2.7 in)
|Camera Weight||408 g (14.4 oz)||580 g (20.5 oz)|
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