Olympus E-M10 vs Sony A7R II
The Olympus OM-D E-M10 and the Sony Alpha A7R II are two digital cameras that were officially introduced, respectively, in January 2014 and June 2015. Both the E-M10 and the A7R II are mirrorless interchangeable lens cameras that are based on a Four Thirds (E-M10) and a full frame (A7R II) sensor. The Olympus has a resolution of 15.9 megapixels, whereas the Sony provides 42.2 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Olympus E-M10||Sony A7R II|
|Mirrorless system camera||Mirrorless system camera|
|Micro Four Thirds lenses||Sony E mount lenses|
|15.9 MP, Four Thirds Sensor||42.2 MP, Full Frame Sensor|
|1080/30p Video||4K/30p Video|
|ISO 200-25600||ISO 100-25600 (50-102400)|
|Electronic viewfinder (1440k dots)||Electronic viewfinder (2400k dots)|
|3.0" LCD, 1037k dots||3.0" LCD, 1229k dots|
|Tilting touchscreen||Tilting screen (not touch-sensitive)|
|8 shutter flaps per second||5 shutter flaps per second|
|In-body stabilization||In-body stabilization|
|Not weather sealed||Weathersealed body|
|320 shots per battery charge||290 shots per battery charge|
|119 x 82 x 46 mm, 396 g||127 x 96 x 60 mm, 625 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus OM-D E-M10 and the Sony Alpha A7R II? 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 Olympus E-M10 and the Sony A7R II. 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 width, height and depth dimensions are rounded to the nearest millimeter.
The E-M10 can be obtained in two different colors (black, silver), while the A7R II 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 A7R II is notably larger (25 percent) than the Olympus E-M10. Moreover, the A7R II is substantially heavier (58 percent) than the E-M10. It is noteworthy in this context that the A7R II is splash and dust-proof, while the E-M10 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. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Micro Four Thirds Lens Catalog (E-M10) and the Sony FE Lens Catalog (A7R II). Mirrorless cameras, such as the two under consideration, have the additional advantage of having a short flange to focal plane distance, which makes it possible to mount many lenses from other systems onto the camera via adapters.
Concerning battery life, the E-M10 gets 320 shots out of its BLS-5 battery, while the A7R II can take 290 images on a single charge of its NP-FW50 power pack. The power pack in the A7R II 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. If you would like to visualize and compare a different camera combination, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.
|Olympus E-M10»||4.7 in||3.2 in||1.8 in||14.0 oz||320||n||Jan 2014||699||-||Olympus E-M10|
|Sony A7R II«||5.0 in||3.8 in||2.4 in||22.0 oz||290||Y||Jun 2015||3,199||-||Sony A7R II|
|Olympus E-M10 III« »||4.8 in||3.3 in||2.0 in||14.5 oz||330||n||Aug 2017||649||Olympus E-M10 III|
|Olympus E-M5 II« »||4.9 in||3.3 in||1.8 in||16.5 oz||310||Y||Feb 2015||1,099||Olympus E-M5 II|
|Olympus E-M10 II« »||4.7 in||3.3 in||1.9 in||13.8 oz||320||n||Aug 2015||649||-||Olympus E-M10 II|
|Olympus E-PL7« »||4.5 in||2.6 in||1.5 in||12.6 oz||350||n||Aug 2014||599||-||Olympus E-PL7|
|Olympus E-P5« »||4.8 in||2.7 in||1.5 in||14.8 oz||330||n||May 2013||999||-||Olympus E-P5|
|Olympus E-PL6« »||4.4 in||2.5 in||1.5 in||11.5 oz||360||n||May 2013||599||-||Olympus E-PL6|
|Olympus E-PL5« »||4.4 in||2.5 in||1.5 in||11.5 oz||360||n||Sep 2012||599||-||Olympus E-PL5|
|Panasonic GX85« »||4.8 in||2.8 in||1.7 in||15.0 oz||290||n||Apr 2016||799||Panasonic GX85|
|Panasonic G6« »||4.8 in||3.3 in||2.8 in||13.8 oz||340||n||Apr 2013||599||-||Panasonic G6|
|Panasonic GX7« »||4.8 in||2.8 in||2.2 in||14.2 oz||350||n||Aug 2013||999||-||Panasonic GX7|
|Sony A7R III« »||5.0 in||3.8 in||2.9 in||22.9 oz||650||Y||Oct 2017||3,199||-||Sony A7R III|
|Sony A99 II« »||5.6 in||4.1 in||3.0 in||29.9 oz||490||Y||Sep 2016||3,199||Sony A99 II|
|Sony A7S II« »||5.0 in||3.8 in||2.4 in||22.1 oz||370||Y||Sep 2015||2,999||Sony A7S II|
|Sony A7 II« »||5.0 in||3.8 in||2.4 in||21.1 oz||350||Y||Nov 2014||1,999||-||Sony A7 II|
|Sony A7R« »||5.0 in||3.7 in||1.9 in||16.4 oz||340||Y||Oct 2013||2,299||-||Sony A7R|
|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 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 E-M10 was launched at a markedly lower price (by 78 percent) than the A7R II, 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 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. 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 associated with larger, more expensive camera bodies and lenses.
Of the two cameras under consideration, the Olympus E-M10 features a Four Thirds sensor and the Sony A7R II a full frame sensor. The sensor area in the A7R II is 283 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 1.0. The sensor in the E-M10 has a native 4:3 aspect ratio, while the one in the A7R II offers a 3:2 aspect.
With 42.2MP, the A7R II offers a higher resolution than the E-M10 (15.9MP), but the A7R II nevertheless has larger individual pixels (pixel pitch of 4.52μm versus 3.76μm for the E-M10) due to its larger sensor. Moreover, the A7R II is a somewhat more recent model (by 1 year and 4 months) than the E-M10, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.
The resolution advantage of the Sony A7R II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7R II for good quality output (200 dots per inch) amounts to 39.8 x 26.5 inch or 101 x 67.4 cm, for very good quality (250 dpi) 31.8 x 21.2 inch or 80.8 x 53.9 cm, and for excellent quality (300 dpi) 26.5 x 17.7 inch or 67.3 x 44.9 cm. The corresponding values for the Olympus E-M10 are 23 x 17.3 inch or 58.5 x 43.9 cm for good quality, 18.4 x 13.8 inch or 46.8 x 35.1 cm for very good quality, and 15.4 x 11.5 inch or 39 x 29.3 cm for excellent quality prints.
The A7R II has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Olympus OM-D E-M10 has a native sensitivity range from ISO 200 to ISO 25600, which can be extended to ISO 100-25600. The corresponding ISO settings for the Sony Alpha A7R II are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-102400.
For many cameras, data on sensor performance has been reported by DXO Mark. 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"). Of the two cameras under consideration, the A7R II offers substantially better image quality than the E-M10 (overall score 26 points higher). The advantage is based on 3.2 bits higher color depth, 1.6 EV in additional dynamic range, and 2 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Olympus E-M10»||Four Thirds||15.9||4608||3456||1080/30p||22.8||12.3||884||72||Olympus E-M10|
|Sony A7R II«||Full Frame||42.2||7952||5304||4K/30p||26.0||13.9||3434||98||Sony A7R II|
|Olympus E-M10 III« »||Four Thirds||15.9||4608||3456||4K/30p||-||-||-||-||Olympus E-M10 III|
|Olympus E-M5 II« »||Four Thirds||15.9||4608||3456||1080/60p||23.0||12.5||842||73||Olympus E-M5 II|
|Olympus E-M10 II« »||Four Thirds||15.9||4608||3456||1080/60p||23.1||12.5||842||73||Olympus E-M10 II|
|Olympus E-PL7« »||Four Thirds||15.9||4608||3456||1080/30p||22.7||12.4||873||72||Olympus E-PL7|
|Olympus E-P5« »||Four Thirds||15.9||4608||3456||1080/30p||22.8||12.4||895||72||Olympus E-P5|
|Olympus E-PL6« »||Four Thirds||15.9||4608||3456||1080/30p||-||-||-||-||Olympus E-PL6|
|Olympus E-PL5« »||Four Thirds||15.9||4608||3456||1080/30p||22.8||12.3||889||72||Olympus E-PL5|
|Panasonic GX85« »||Four Thirds||15.8||4592||3448||4K/30p||22.9||12.6||662||71||Panasonic GX85|
|Panasonic G6« »||Four Thirds||15.9||4608||3456||1080/60p||21.3||11.5||639||61||Panasonic G6|
|Panasonic GX7« »||Four Thirds||15.8||4592||3448||1080/60p||22.6||12.2||718||70||Panasonic GX7|
|Sony A7R III« »||Full Frame||42.2||7952||5304||4K/30p||26.0||14.7||3523||100||Sony A7R III|
|Sony A99 II« »||Full Frame||42.2||7952||5304||4K/30p||25.4||13.4||2317||92||Sony A99 II|
|Sony A7S II« »||Full Frame||12.0||4240||2832||4K/30p||23.6||13.3||2993||85||Sony A7S II|
|Sony A7 II« »||Full Frame||24.0||6000||4000||1080/60p||24.9||13.6||2449||90||Sony A7 II|
|Sony A7R« »||Full Frame||36.2||7360||4912||1080/60p||25.6||14.1||2746||95||Sony A7R|
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, but the A7R II provides a better video resolution than the E-M10. It can shoot movie footage at 4K/30p, while the Olympus is limited to 1080/30p.
Apart from body and sensor, cameras can and do differ across a range of features. The two cameras under review are similar with respect to both having an electronic viewfinder. However, the one in the A7R II offers a substantially higher resolution than the one in the E-M10 (2400k vs 1440k dots). The adjacent table lists some of the other core features of the Olympus E-M10 and Sony A7R II along with similar information for a selection of comparators.
|Olympus E-M10»||1440||n||3.0||1037||tilting||Y||1/4000s||8.0||Y||Y||Olympus E-M10|
|Sony A7R II«||2400||n||3.0||1229||tilting||n||1/8000s||5.0||n||Y||Sony A7R II|
|Olympus E-M10 III« »||2360||n||3.0||1040||tilting||Y||1/4000s||8.6||Y||Y||Olympus E-M10 III|
|Olympus E-M5 II« »||2360||n||3.0||1037||swivel||Y||1/8000s||10.0||n||Y||Olympus E-M5 II|
|Olympus E-M10 II« »||2360||n||3.0||1040||tilting||Y||1/4000s||8.0||Y||Y||Olympus E-M10 II|
|Olympus E-PL7« »||-||n||3.0||1037||tilting||Y||1/4000s||8.0||n||Y||Olympus E-PL7|
|Olympus E-P5« »||-||n||3.0||1037||tilting||Y||1/8000s||9.0||Y||Y||Olympus E-P5|
|Olympus E-PL6« »||-||n||3.0||460||tilting||Y||1/4000s||8.0||n||Y||Olympus E-PL6|
|Olympus E-PL5« »||-||n||3.0||460||tilting||Y||1/4000s||8.0||n||Y||Olympus E-PL5|
|Panasonic GX85« »||2765||n||3.0||1040||tilting||Y||1/4000s||8.0||Y||Y||Panasonic GX85|
|Panasonic G6« »||1440||n||3.0||1036||swivel||Y||1/4000s||7.0||Y||n||Panasonic G6|
|Panasonic GX7« »||2760||n||3.0||1040||tilting||Y||1/8000s||5.0||Y||Y||Panasonic GX7|
|Sony A7R III« »||3686||n||3.0||1440||tilting||Y||1/8000s||10.0||n||Y||Sony A7R III|
|Sony A99 II« »||2400||Y||3.0||1229||full-flex||n||1/8000s||12.0||n||Y||Sony A99 II|
|Sony A7S II« »||2400||n||3.0||1229||tilting||n||1/8000s||5.0||n||Y||Sony A7S II|
|Sony A7 II« »||2400||n||3.0||1230||tilting||n||1/8000s||5.0||n||Y||Sony A7 II|
|Sony A7R« »||2400||n||3.0||1230||tilting||n||1/8000s||4.0||n||n||Sony A7R|
One difference between the cameras concerns the presence of an on-board flash. The E-M10 has one, while the A7R II does not. While the built-in flash of the E-M10 is not very powerful, it can at times be useful as a fill-in light.
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, the A7R II is one of those camera that have an additional 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 Olympus E-M10 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 E-M10 writes its imaging data to SDXC cards, while the A7R II 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 Olympus OM-D E-M10 and Sony Alpha A7R II and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Olympus E-M10»||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Olympus E-M10|
|Sony A7R II«||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7R II|
|Olympus E-M10 III« »||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Olympus E-M10 III|
|Olympus E-M5 II« »||Y||stereo||mono||Y||-||micro||2.0||Y||-||-||Olympus E-M5 II|
|Olympus E-M10 II« »||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Olympus E-M10 II|
|Olympus E-PL7« »||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Olympus E-PL7|
|Olympus E-P5« »||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Olympus E-P5|
|Olympus E-PL6« »||Y||stereo||mono||-||-||mini||2.0||-||-||-||Olympus E-PL6|
|Olympus E-PL5« »||Y||stereo||mono||-||-||mini||2.0||-||-||-||Olympus E-PL5|
|Panasonic GX85« »||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Panasonic GX85|
|Panasonic G6« »||Y||stereo||mono||Y||-||mini||2.0||Y||Y||-||Panasonic G6|
|Panasonic GX7« »||Y||stereo||mono||-||-||mini||2.0||Y||Y||-||Panasonic GX7|
|Sony A7R III« »||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y||Sony A7R III|
|Sony A99 II« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||Y||Sony A99 II|
|Sony A7S II« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7S II|
|Sony A7 II« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7 II|
|Sony A7R« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7R|
It is notable that the A7R II has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The E-M10 lacks such a headphone port.
Both the E-M10 and the A7R II have been discontinued, but can regularly be found used on eBay. The E-M10 was replaced by the Olympus E-M10 II, while the A7R II was followed by the Sony Alpha A7R III. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Olympus and Sony websites.
So how do things add up? Is there a clear favorite between the Olympus E-M10 and the Sony A7R II? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.
Advantages of the Olympus OM-D E-M10:
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- Faster burst: Shoots at higher frequency (8 vs 5 flaps/sec) to capture the decisive moment.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More compact: Is smaller (119x82mm vs 127x96mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 229g or 37 percent) and hence easier to carry around.
- Longer lasting: Can take more shots (320 versus 290) on a single battery charge.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More affordable: Was introduced into a lower priced category (78 percent cheaper at launch).
- More heavily discounted: Has been on the market for longer (launched in January 2014).
Arguments in favor of the Sony Alpha A7R II:
- More detail: Has more megapixels (42.2 vs 15.9MP), which boosts linear resolution by 66%.
- Better image quality: Scores substantially higher (26 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (3.2 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (1.6 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (2 stops ISO advantage).
- Better video: Provides higher definition movie capture (4K/30p vs 1080/30p).
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- More detailed viewfinder: Has higher resolution electronic viewfinder (2400k vs 1440k dots).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.58x).
- More detailed LCD: Has a higher resolution rear screen (1229k vs 1037k dots).
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- Easier travel charging: Can be conveniently charged via its USB port.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
- More modern: Was introduced somewhat (1 year and 4 months) more recently.
If the count of relative strengths (bullet points above) is taken as a measure, the A7R II is the clear winner of the contest (17 : 9 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 Olympus E-M10 and the Sony A7R II 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 technical specifications can provide a useful overview of the capabilities of different cameras, it says little about, for example, the shooting experience and imaging performance of the E-M10 and the A7R II in practical situations. 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.
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 (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.
|Olympus E-M10»||-||80/100||5/5||4.5/5||5/5||Jan 2014||699||-||Olympus E-M10|
|Sony A7R II«||+ +||90/100||5/5||4.5/5||5/5||Jun 2015||3,199||-||Sony A7R II|
|Olympus E-M10 III« »||+||80/100||4.5/5||4/5||4.5/5||Aug 2017||649||Olympus E-M10 III|
|Olympus E-M5 II« »||+ +||81/100||5/5||4.5/5||5/5||Feb 2015||1,099||Olympus E-M5 II|
|Olympus E-M10 II« »||+ +||80/100||5/5||5/5||5/5||Aug 2015||649||-||Olympus E-M10 II|
|Olympus E-PL7« »||+||-||5/5||4.5/5||4/5||Aug 2014||599||-||Olympus E-PL7|
|Olympus E-P5« »||+ +||78/100||4.5/5||4.5/5||5/5||May 2013||999||-||Olympus E-P5|
|Olympus E-PL6« »||-||-||-||-||-||May 2013||599||-||Olympus E-PL6|
|Olympus E-PL5« »||+ +||-||4.5/5||4.5/5||4.5/5||Sep 2012||599||-||Olympus E-PL5|
|Panasonic GX85« »||+ +||82/100||5/5||4.5/5||5/5||Apr 2016||799||Panasonic GX85|
|Panasonic G6« »||+ +||-||5/5||-||4.5/5||Apr 2013||599||-||Panasonic G6|
|Panasonic GX7« »||+||79/100||5/5||4.5/5||5/5||Aug 2013||999||-||Panasonic GX7|
|Sony A7R III« »||+ +||90/100||4.5/5||5/5||5/5||Oct 2017||3,199||-||Sony A7R III|
|Sony A99 II« »||-||85/100||4.5/5||4.5/5||4.5/5||Sep 2016||3,199||Sony A99 II|
|Sony A7S II« »||+||-||4.5/5||5/5||5/5||Sep 2015||2,999||Sony A7S II|
|Sony A7 II« »||+||82/100||4.5/5||5/5||5/5||Nov 2014||1,999||-||Sony A7 II|
|Sony A7R« »||+ +||82/100||4.5/5||5/5||5/5||Oct 2013||2,299||-||Sony A7R|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (-) not available.|
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 comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.
Other camera comparisons
Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
- Canon 5D Mark IV vs Olympus E-M10 III
- Canon M3 vs Olympus E-M10
- Canon SL2 vs Olympus E-M10 III
- Canon T100 vs Olympus E-M10 II
- Canon T7i vs Sony A7R II
- Canon XTi vs Olympus E-M10
- Fujifilm X-E3 vs Olympus E-M10 II
- Fujifilm X-T10 vs Sony A7R II
- Nikon D3000 vs Olympus E-M10 II
- Nikon D800E vs Olympus E-M10 II
- Olympus E-M10 II vs Sony A7R
- Panasonic GF5 vs Sony A7R II
Specifications: Olympus E-M10 vs Sony A7R II
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||Olympus E-M10||Sony A7R II|
|Camera Type||Mirrorless system camera||Mirrorless system camera|
|Camera Lens||Micro Four Thirds lenses||Sony E mount lenses|
|Launch Date||January 2014||June 2015|
|Launch Price||USD 699||USD 3199|
|Sensor Specs||Olympus E-M10||Sony A7R II|
|Sensor Format||Four Thirds Sensor||Full Frame Sensor|
|Sensor Size||17.3 x 13.0 mm||35.9 x 24.0 mm|
|Sensor Area||224.9 mm2||861.6 mm2|
|Sensor Diagonal||21.6 mm||43.2 mm|
|Sensor Resolution||15.9 Megapixels||42.2 Megapixels|
|Image Resolution||4608 x 3456 pixels||7952 x 5304 pixels|
|Pixel Pitch||3.76 μm||4.52 μm|
|Pixel Density||7.08 MP/cm2||4.90 MP/cm2|
|Moiré control||no AA filter||no AA filter|
|Movie Capability||1080/30p Video||4K/30p Video|
|ISO Setting||200-25600 ISO||100-25600 ISO|
|ISO Boost||100-25600 ISO||50-102400 ISO|
|Image Processor||TruePic VII||BIONZ X|
|DXO Sensor Quality (score)||72||98|
|DXO Color Depth (bits)||22.8||26.0|
|DXO Dynamic Range (EV)||12.3||13.9|
|DXO Low Light (ISO)||884||3434|
|Screen Specs||Olympus E-M10||Sony A7R II|
|Viewfinder Type||Electronic viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||1440k dots||2400k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0 inch||3.0 inch|
|LCD Resolution||1037k dots||1229k dots|
|LCD Attachment||Tilting screen||Tilting screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Olympus E-M10||Sony A7R II|
|Autofocus System||Contrast-detect AF||On-Sensor Phase-detect|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000/s||1/8000/s|
|Continuous Shooting||8 shutter flaps/s||5 shutter flaps/s|
|Electronic Shutter||no E-Shutter||YES|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|Image Stabilization||In-body stabilization||In-body stabilization|
|Fill Flash||Build-in Flash||no On-Board 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||Olympus E-M10||Sony A7R II|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||micro HDMI||micro HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Headphone Socket||no Headphone port||Headphone port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Near-Field Communication||no NFC||NFC built-in|
|Body Specs||Olympus E-M10||Sony A7R II|
|Environmental Sealing||Not weather sealed||Weathersealed body|
|Battery Life (CIPA)||320 shots per charge||290 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
119 x 82 x 46 mm
(4.7 x 3.2 x 1.8 in)
127 x 96 x 60 mm
(5.0 x 3.8 x 2.4 in)
|Camera Weight||396 g (14.0 oz)||625 g (22.0 oz)|
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