Olympus E-M10 II vs Sony A7S II
The Olympus OM-D E-M10 Mark II and the Sony Alpha 7S II are two digital cameras that were revealed to the public, respectively, in August 2015 and September 2015. Both the E-M10 II and the A7S II are mirrorless interchangeable lens cameras that are based on a Four Thirds (E-M10 II) and a full frame (A7S II) sensor. The Olympus has a resolution of 15.9 megapixels, whereas the Sony provides 12 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Olympus E-M10 II||Sony A7S II|
|Mirrorless system camera||Mirrorless system camera|
|Micro Four Thirds lenses||Sony E mount lenses|
|15.9 MP, Four Thirds Sensor||12 MP, Full Frame Sensor|
|1080/60p Video||4K/30p Video|
|ISO 200-25600||ISO 100-102400 (50-409600)|
|Electronic viewfinder (2360k dots)||Electronic viewfinder (2400k dots)|
|3.0" LCD, 1040k 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||370 shots per battery charge|
|120 x 83 x 47 mm, 390 g||127 x 96 x 60 mm, 627 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus OM-D E-M10 Mark II and the Sony Alpha 7S 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 physical size and weight of the Olympus E-M10 II and the Sony A7S II are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All size dimensions are rounded to the nearest millimeter.
The E-M10 II can be obtained in three different colors (black, silver, brown), while the A7S 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 A7S II is notably larger (22 percent) than the Olympus E-M10 II. Moreover, the A7S II is substantially heavier (61 percent) than the E-M10 II. It is noteworthy in this context that the A7S II is splash and dust-proof, while the E-M10 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. 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 II) and the Sony FE Lens Catalog (A7S 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 II gets 320 shots out of its BLS-50 battery, while the A7S II can take 370 images on a single charge of its NP-FW50 power pack. The power pack in the A7S 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 II»||4.7 in||3.3 in||1.9 in||13.8 oz||320||n||Aug 2015||649||-||Olympus E-M10 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|
|Olympus E-PL9« »||4.6 in||2.7 in||1.5 in||13.4 oz||350||n||Feb 2018||549||Olympus E-PL9|
|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-PL8« »||4.5 in||2.6 in||1.5 in||12.6 oz||350||n||Sep 2016||549||-||Olympus E-PL8|
|Olympus PEN-F« »||4.9 in||2.8 in||1.5 in||15.1 oz||330||n||Jan 2016||1,199||Olympus PEN-F|
|Olympus E-M10« »||4.7 in||3.2 in||1.8 in||14.0 oz||320||n||Jan 2014||699||-||Olympus E-M10|
|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|
|Sony A7R IV« »||5.1 in||3.8 in||3.1 in||23.5 oz||670||Y||Jul 2019||3,499||Sony A7R IV|
|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 A7R II« »||5.0 in||3.8 in||2.4 in||22.0 oz||290||Y||Jun 2015||3,199||-||Sony A7R 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 A7S« »||5.0 in||3.7 in||1.9 in||17.2 oz||380||Y||Apr 2014||2,499||-||Sony A7S|
|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 II was launched at a markedly lower price (by 78 percent) than the A7S II, 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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Olympus E-M10 II features a Four Thirds sensor and the Sony A7S II a full frame sensor. The sensor area in the A7S II is 276 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 II has a native 4:3 aspect ratio, while the one in the A7S II offers a 3:2 aspect.
Despite having a smaller sensor, the Olympus E-M10 II offers a higher resolution of 15.9 megapixels, compared with 12 MP of the Sony A7S II. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.76μm versus 8.40μm for the A7S II). 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 II has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Olympus E-M10 II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the E-M10 II for good quality output (200 dots per inch) amounts to 23 x 17.3 inch or 58.5 x 43.9 cm, for very good quality (250 dpi) 18.4 x 13.8 inch or 46.8 x 35.1 cm, and for excellent quality (300 dpi) 15.4 x 11.5 inch or 39 x 29.3 cm. The corresponding values for the Sony A7S II are 21.2 x 14.2 inch or 53.8 x 36 cm for good quality, 17 x 11.3 inch or 43.1 x 28.8 cm for very good quality, and 14.1 x 9.4 inch or 35.9 x 24 cm for excellent quality prints.
The Olympus OM-D E-M10 Mark II 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 7S II are ISO 100 to ISO 102400, with the possibility to increase the ISO range to 50-409600.
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 A7S II offers substantially better image quality than the E-M10 II (overall score 12 points higher). The advantage is based on 0.5 bits higher color depth, 0.8 EV in additional dynamic range, and 1.8 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
|Olympus E-M10 II»||Four Thirds||15.9||4608||3456||1080/60p||23.1||12.5||842||73||Olympus E-M10 II|
|Sony A7S II«||Full Frame||12.0||4240||2832||4K/30p||23.6||13.3||2993||85||Sony A7S II|
|Olympus E-PL9« »||Four Thirds||15.9||4608||3456||4K/30p||-||-||-||-||Olympus E-PL9|
|Olympus E-M10 III« »||Four Thirds||15.9||4608||3456||4K/30p||-||-||-||-||Olympus E-M10 III|
|Olympus E-PL8« »||Four Thirds||15.9||4608||3456||1080/30p||-||-||-||-||Olympus E-PL8|
|Olympus PEN-F« »||Four Thirds||20.2||5184||3888||1080/60p||23.1||12.4||894||74||Olympus PEN-F|
|Olympus E-M10« »||Four Thirds||15.9||4608||3456||1080/30p||22.8||12.3||884||72||Olympus E-M10|
|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|
|Sony A7R IV« »||Full Frame||60.2||9504||6336||4K/30p||-||-||-||-||Sony A7R IV|
|Sony A7R III« »||Full Frame||42.2||7952||5304||4K/30p||26.0||14.7||3523||100||Sony A7R III|
|Sony A7R II« »||Full Frame||42.2||7952||5304||4K/30p||26.0||13.9||3434||98||Sony A7R II|
|Sony A7 II« »||Full Frame||24.0||6000||4000||1080/60p||24.9||13.6||2449||90||Sony A7 II|
|Sony A7S« »||Full Frame||12.0||4240||2832||1080/60p||23.9||13.2||3702||87||Sony A7S|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the A7S II provides a better video resolution than the E-M10 II. It can shoot movie footage at 4K/30p, while the Olympus is limited to 1080/60p.
Apart from body and sensor, cameras can and do differ across a variety of features. The two cameras under review are similar with respect to both having an electronic viewfinder. However, the one in the A7S II offers a slightly higher resolution than the one in the E-M10 II (2400k vs 2360k dots). The adjacent table lists some of the other core features of the Olympus E-M10 II and Sony A7S II along with similar information for a selection of comparators.
|Olympus E-M10 II»||2360||n||3.0||1040||tilting||Y||1/4000s||8.0||Y||Y||Olympus E-M10 II|
|Sony A7S II«||2400||n||3.0||1229||tilting||n||1/8000s||5.0||n||Y||Sony A7S II|
|Olympus E-PL9« »||-||n||3.0||1040||tilting||Y||1/4000s||8.6||Y||Y||Olympus E-PL9|
|Olympus E-M10 III« »||2360||n||3.0||1040||tilting||Y||1/4000s||8.6||Y||Y||Olympus E-M10 III|
|Olympus E-PL8« »||-||n||3.0||1037||tilting||Y||1/4000s||8.0||n||Y||Olympus E-PL8|
|Olympus PEN-F« »||2360||n||3.0||1037||swivel||Y||1/8000s||10.0||n||Y||Olympus PEN-F|
|Olympus E-M10« »||1440||n||3.0||1037||tilting||Y||1/4000s||8.0||Y||Y||Olympus E-M10|
|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|
|Sony A7R IV« »||5760||n||3.0||1440||tilting||Y||1/8000s||10.0||n||Y||Sony A7R IV|
|Sony A7R III« »||3686||n||3.0||1440||tilting||Y||1/8000s||10.0||n||Y||Sony A7R III|
|Sony A7R II« »||2400||n||3.0||1229||tilting||n||1/8000s||5.0||n||Y||Sony A7R II|
|Sony A7 II« »||2400||n||3.0||1230||tilting||n||1/8000s||5.0||n||Y||Sony A7 II|
|Sony A7S« »||2400||n||3.0||921||tilting||n||1/8000s||5.0||n||n||Sony A7S|
One difference between the cameras concerns the presence of an on-board flash. The E-M10 II has one, while the A7S II does not. While the built-in flash of the E-M10 II 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, 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 Olympus E-M10 II 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 II writes its imaging data to SDXC cards, while the A7S 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 Mark II and Sony Alpha 7S II and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Olympus E-M10 II»||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Olympus E-M10 II|
|Sony A7S II«||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7S II|
|Olympus E-PL9« »||Y||stereo||mono||-||-||micro||2.0||Y||-||Y||Olympus E-PL9|
|Olympus E-M10 III« »||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Olympus E-M10 III|
|Olympus E-PL8« »||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Olympus E-PL8|
|Olympus PEN-F« »||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Olympus PEN-F|
|Olympus E-M10« »||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Olympus E-M10|
|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|
|Sony A7R IV« »||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y||Sony A7R IV|
|Sony A7R III« »||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y||Sony A7R III|
|Sony A7R II« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7R II|
|Sony A7 II« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7 II|
|Sony A7S« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7S|
It is notable that the A7S 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 II lacks such a headphone port.
The A7S II is a recent model that features in the current product line-up of Sony. In contrast, the E-M10 II has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the E-M10 II was succeeded by the Olympus E-M10 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? Which of the two cameras – the Olympus E-M10 II or the Sony A7S II – 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 Olympus OM-D E-M10 Mark II:
- More detail: Offers more megapixels (15.9 vs 12MP) with a 13% higher linear resolution.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- 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 (120x83mm vs 127x96mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 237g or 38 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 (78 percent cheaper at launch).
Arguments in favor of the Sony Alpha 7S II:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better image quality: Scores substantially higher (12 points) in the DXO overall evaluation.
- More dynamic range: Captures a broader range of light and dark details (0.8 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (1.8 stops ISO advantage).
- Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
- 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.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.62x).
- More detailed LCD: Has a higher resolution rear screen (1229k vs 1040k dots).
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Longer lasting: Gets more shots (370 versus 320) out of a single battery charge.
- 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.
If the count of relative strengths (bullet points above) is taken as a measure, the A7S II is the clear winner of the contest (13 : 9 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 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 II and the Sony A7S 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 II and the A7S II in practical situations. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.
This is why expert reviews are important. The adjacent summary-table relays the overall verdicts of several of the most popular 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 II»||+ +||80/100||5/5||5/5||5/5||Aug 2015||649||-||Olympus E-M10 II|
|Sony A7S II«||+||-||4.5/5||5/5||5/5||Sep 2015||2,999||Sony A7S II|
|Olympus E-PL9« »||+||-||4.5/5||-||4/5||Feb 2018||549||Olympus E-PL9|
|Olympus E-M10 III« »||+||80/100||4.5/5||4/5||4.5/5||Aug 2017||649||Olympus E-M10 III|
|Olympus E-PL8« »||-||-||4.5/5||-||4/5||Sep 2016||549||-||Olympus E-PL8|
|Olympus PEN-F« »||-||82/100||4.5/5||4.5/5||5/5||Jan 2016||1,199||Olympus PEN-F|
|Olympus E-M10« »||-||80/100||5/5||4.5/5||5/5||Jan 2014||699||-||Olympus E-M10|
|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|
|Sony A7R IV« »||+||-||-||-||5/5||Jul 2019||3,499||Sony A7R IV|
|Sony A7R III« »||+ +||90/100||4.5/5||5/5||5/5||Oct 2017||3,199||-||Sony A7R III|
|Sony A7R II« »||+ +||90/100||5/5||4.5/5||5/5||Jun 2015||3,199||-||Sony A7R II|
|Sony A7 II« »||+||82/100||4.5/5||5/5||5/5||Nov 2014||1,999||-||Sony A7 II|
|Sony A7S« »||-||86/100||4.5/5||4.5/5||5/5||Apr 2014||2,499||-||Sony A7S|
|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. 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. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
Other camera comparisons
Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
- Canon SX70 vs Sony A7S II
- Canon T2i vs Olympus E-M10 II
- Canon T7i vs Sony A7S II
- Nikon D3400 vs Olympus E-M10 II
- Nikon D3500 vs Olympus E-M10 II
- Nikon D800 vs Sony A7S II
- Olympus E-M10 II vs Olympus TG-6
- Olympus E-M10 II vs Panasonic FZ100
- Olympus E-M10 II vs Panasonic G85
- Panasonic GX9 vs Sony A7S II
- Sony A7S II vs Sony HX99
- Sony A7S II vs YI M1
Specifications: Olympus E-M10 II vs Sony A7S 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 II||Sony A7S II|
|Camera Type||Mirrorless system camera||Mirrorless system camera|
|Camera Lens||Micro Four Thirds lenses||Sony E mount lenses|
|Launch Date||August 2015||September 2015|
|Launch Price||USD 649||USD 2999|
|Sensor Specs||Olympus E-M10 II||Sony A7S II|
|Sensor Format||Four Thirds Sensor||Full Frame Sensor|
|Sensor Size||17.3 x 13.0 mm||35.6 x 23.8 mm|
|Sensor Area||224.9 mm2||847.28 mm2|
|Sensor Diagonal||21.6 mm||42.8 mm|
|Sensor Resolution||15.9 Megapixels||12 Megapixels|
|Image Resolution||4608 x 3456 pixels||4240 x 2832 pixels|
|Pixel Pitch||3.76 μm||8.40 μm|
|Pixel Density||7.08 MP/cm2||1.42 MP/cm2|
|Moiré control||no AA filter||Anti-Alias filter|
|Movie Capability||1080/60p Video||4K/30p Video|
|ISO Setting||200-25600 ISO||100-102400 ISO|
|ISO Boost||100-25600 ISO||50-409600 ISO|
|Image Processor||TruePic VII||BIONZ X|
|DXO Sensor Quality (score)||73||85|
|DXO Color Depth (bits)||23.1||23.6|
|DXO Dynamic Range (EV)||12.5||13.3|
|DXO Low Light (ISO)||842||2993|
|Screen Specs||Olympus E-M10 II||Sony A7S II|
|Viewfinder Type||Electronic viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||2360k dots||2400k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0 inch||3.0 inch|
|LCD Resolution||1040k dots||1229k dots|
|LCD Attachment||Tilting screen||Tilting screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Olympus E-M10 II||Sony A7S II|
|Autofocus System||Contrast-detect AF||Contrast-detect AF|
|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||up to 1/16000s||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 II||Sony A7S 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 II||Sony A7S II|
|Environmental Sealing||Not weather sealed||Weathersealed body|
|Battery Life (CIPA)||320 shots per charge||370 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
120 x 83 x 47 mm
(4.7 x 3.3 x 1.9 in)
127 x 96 x 60 mm
(5.0 x 3.8 x 2.4 in)
|Camera Weight||390 g (13.8 oz)||627 g (22.1 oz)|
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