Olympus E-M10 vs Sony A7S
The Olympus OM-D E-M10 and the Sony Alpha A7S are two digital cameras that were announced, respectively, in January 2014 and April 2014. Both the E-M10 and the A7S are mirrorless interchangeable lens cameras that are based on a Four Thirds (E-M10) and a full frame (A7S) 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.
Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus OM-D E-M10 and the Sony Alpha A7S? 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.
Body comparison
An illustration of the physical size and weight of the Olympus E-M10 and the Sony A7S is provided 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.
The E-M10 can be obtained in two different colors (black, silver), while the A7S 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 is notably larger (22 percent) than the Olympus E-M10. Moreover, the A7S is markedly heavier (23 percent) than the E-M10. It is noteworthy in this context that the A7S 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 (A7S). 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 Olympus BLS-5 battery, while the A7S can take 380 images on a single charge of its Sony NP-FW50 power pack. The power pack in the A7S can be charged via the USB port, which can be very convenient when travelling.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.
Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price (USD) |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Olympus E-M10 | 119 mm | 82 mm | 46 mm | 396 g | 320 | n | Jan 2014 | 699 | ebay.com | |
2. | Sony A7S | 127 mm | 94 mm | 48 mm | 489 g | 380 | Y | Apr 2014 | 2,499 | ebay.com | |
3. | Nikon Df | 144 mm | 110 mm | 67 mm | 760 g | 1400 | Y | Nov 2013 | 2,749 | ebay.com | |
4. | Olympus E-M10 II | 120 mm | 83 mm | 47 mm | 390 g | 320 | n | Aug 2015 | 649 | ebay.com | |
5. | Olympus E-P5 | 122 mm | 69 mm | 37 mm | 420 g | 330 | n | May 2013 | 999 | ebay.com | |
6. | Olympus E-PL5 | 111 mm | 64 mm | 38 mm | 325 g | 360 | n | Sep 2012 | 599 | ebay.com | |
7. | Olympus E-PL6 | 111 mm | 64 mm | 38 mm | 325 g | 360 | n | May 2013 | 599 | ebay.com | |
8. | Olympus E-PL7 | 115 mm | 67 mm | 38 mm | 357 g | 350 | n | Aug 2014 | 599 | ebay.com | |
9. | Olympus E-PL9 | 117 mm | 68 mm | 39 mm | 380 g | 350 | n | Feb 2018 | 599 | ebay.com | |
10. | Olympus E-PL10 | 117 mm | 68 mm | 39 mm | 380 g | 350 | n | Oct 2019 | 599 | ebay.com | |
11. | Panasonic G6 | 122 mm | 85 mm | 71 mm | 390 g | 340 | n | Apr 2013 | 599 | ebay.com | |
12. | Panasonic GX7 | 123 mm | 71 mm | 55 mm | 402 g | 350 | n | Aug 2013 | 999 | ebay.com | |
13. | Panasonic GX85 | 122 mm | 71 mm | 44 mm | 426 g | 290 | n | Apr 2016 | 799 | amazon.com | |
14. | Sony A7 | 127 mm | 94 mm | 48 mm | 474 g | 340 | Y | Oct 2013 | 1,699 | ebay.com | |
15. | Sony A7R | 127 mm | 94 mm | 48 mm | 465 g | 340 | Y | Oct 2013 | 2,299 | ebay.com | |
16. | Sony A7S II | 127 mm | 96 mm | 60 mm | 627 g | 370 | Y | Sep 2015 | 2,999 | ebay.com | |
17. | Sony ZV-E1 | 121 mm | 72 mm | 54 mm | 483 g | 570 | Y | Mar 2023 | 2,199 | amazon.com | |
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders. | |||||||||||
Any camera decision will naturally be influenced heavily by the price. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The E-M10 was launched at a markedly lower price (by 72 percent) than the A7S, 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.
Sensor comparison
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. 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 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 A7S a full frame sensor. The sensor area in the A7S is 280 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 A7S offers a 3:2 aspect.
Despite having a smaller sensor, the Olympus E-M10 offers a higher resolution of 15.9 megapixels, compared with 12 MP of the Sony A7S. 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 8.45μm for the A7S). 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 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 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the E-M10 for good quality output (200 dots per inch) amounts to 23 x 17.3 inches or 58.5 x 43.9 cm, for very good quality (250 dpi) 18.4 x 13.8 inches or 46.8 x 35.1 cm, and for excellent quality (300 dpi) 15.4 x 11.5 inches or 39 x 29.3 cm. The corresponding values for the Sony A7S are 21.2 x 14.2 inches or 53.8 x 36 cm for good quality, 17 x 11.3 inches or 43.1 x 28.8 cm for very good quality, and 14.1 x 9.4 inches or 35.9 x 24 cm for excellent quality prints.
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 A7S are ISO 100 to ISO 102400, with the possibility to increase the ISO range to 50-409600.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 offers substantially better image quality than the E-M10 (overall score 15 points higher). The advantage is based on 1.1 bits higher color depth, 0.9 EV in additional dynamic range, and 2.1 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.
Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Olympus E-M10 | Four Thirds | 15.9 | 4608 | 3456 | 1080/30p | 22.8 | 12.3 | 884 | 72 | |
2. | Sony A7S | Full Frame | 12.0 | 4240 | 2832 | 1080/60p | 23.9 | 13.2 | 3702 | 87 | |
3. | Nikon Df | Full Frame | 16.2 | 4928 | 3280 | none | 24.6 | 13.1 | 3279 | 89 | |
4. | Olympus E-M10 II | Four Thirds | 15.9 | 4608 | 3456 | 1080/60p | 23.1 | 12.5 | 842 | 73 | |
5. | Olympus E-P5 | Four Thirds | 15.9 | 4608 | 3456 | 1080/30p | 22.8 | 12.4 | 895 | 72 | |
6. | Olympus E-PL5 | Four Thirds | 15.9 | 4608 | 3456 | 1080/30p | 22.8 | 12.3 | 889 | 72 | |
7. | Olympus E-PL6 | Four Thirds | 15.9 | 4608 | 3456 | 1080/30p | 22.5 | 12.0 | 717 | 68 | |
8. | Olympus E-PL7 | Four Thirds | 15.9 | 4608 | 3456 | 1080/30p | 22.7 | 12.4 | 873 | 72 | |
9. | Olympus E-PL9 | Four Thirds | 15.9 | 4608 | 3456 | 4K/30p | 23.1 | 12.8 | 1162 | 74 | |
10. | Olympus E-PL10 | Four Thirds | 15.9 | 4608 | 3456 | 4K/30p | 23.3 | 13.1 | 1324 | 76 | |
11. | Panasonic G6 | Four Thirds | 15.9 | 4608 | 3456 | 1080/60p | 21.3 | 11.5 | 639 | 61 | |
12. | Panasonic GX7 | Four Thirds | 15.8 | 4592 | 3448 | 1080/60p | 22.6 | 12.2 | 718 | 70 | |
13. | Panasonic GX85 | Four Thirds | 15.8 | 4592 | 3448 | 4K/30p | 22.9 | 12.6 | 662 | 71 | |
14. | Sony A7 | Full Frame | 24.0 | 6000 | 4000 | 1080/60p | 24.8 | 14.2 | 2248 | 90 | |
15. | Sony A7R | Full Frame | 36.2 | 7360 | 4912 | 1080/60p | 25.6 | 14.1 | 2746 | 95 | |
16. | Sony A7S II | Full Frame | 12.0 | 4240 | 2832 | 4K/30p | 23.6 | 13.3 | 2993 | 85 | |
17. | Sony ZV-E1 | Full Frame | 12.0 | 4240 | 2832 | 4K/60p | 25.4 | 14.6 | 3181 | 96 | |
Note: DXO values in italics represent estimates based on sensor size and age. |
Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the A7S provides a faster frame rate than the E-M10. It can shoot movie footage at 1080/60p, while the Olympus is limited to 1080/30p.
Feature comparison
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 A7S 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 A7S along with similar information for a selection of comparators.
Camera Model |
Viewfinder (Type or 000 dots) |
Control Panel (yes/no) |
LCD Specifications (inch/000 dots) |
LCD Attach- ment |
Touch Screen (yes/no) |
Max Shutter Speed * |
Max Shutter Flaps * |
Built-in Flash (yes/no) |
Built-in Image Stab |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Olympus E-M10 | 1440 | n | 3.0 / 1037 | tilting | Y | 1/4000s | 8.0/s | Y | Y | |
2. | Sony A7S | 2400 | n | 3.0 / 921 | tilting | n | 1/8000s | 5.0/s | n | n | |
3. | Nikon Df | optical | Y | 3.2 / 921 | fixed | n | 1/4000s | 5.5/s | n | n | |
4. | Olympus E-M10 II | 2360 | n | 3.0 / 1040 | tilting | Y | 1/4000s | 8.0/s | Y | Y | |
5. | Olympus E-P5 | optional | n | 3.0 / 1037 | tilting | Y | 1/8000s | 9.0/s | Y | Y | |
6. | Olympus E-PL5 | optional | n | 3.0 / 460 | tilting | Y | 1/4000s | 8.0/s | n | Y | |
7. | Olympus E-PL6 | optional | n | 3.0 / 460 | tilting | Y | 1/4000s | 8.0/s | n | Y | |
8. | Olympus E-PL7 | optional | n | 3.0 / 1037 | tilting | Y | 1/4000s | 8.0/s | n | Y | |
9. | Olympus E-PL9 | none | n | 3.0 / 1040 | tilting | Y | 1/4000s | 8.6/s | Y | Y | |
10. | Olympus E-PL10 | none | n | 3.0 / 1040 | tilting | Y | 1/4000s | 8.6/s | Y | Y | |
11. | Panasonic G6 | 1440 | n | 3.0 / 1036 | swivel | Y | 1/4000s | 7.0/s | Y | n | |
12. | Panasonic GX7 | 2760 | n | 3.0 / 1040 | tilting | Y | 1/8000s | 5.0/s | Y | Y | |
13. | Panasonic GX85 | 2765 | n | 3.0 / 1040 | tilting | Y | 1/4000s | 8.0/s | Y | Y | |
14. | Sony A7 | 2400 | n | 3.0 / 1230 | tilting | n | 1/8000s | 5.0/s | n | n | |
15. | Sony A7R | 2400 | n | 3.0 / 1230 | tilting | n | 1/8000s | 4.0/s | n | n | |
16. | Sony A7S II | 2400 | n | 3.0 / 1229 | tilting | n | 1/8000s | 5.0/s | n | Y | |
17. | Sony ZV-E1 | none | n | 3.0 / 1037 | swivel | Y | 1/8000s | 10.0/s | n | Y | |
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one. |
One difference between the cameras concerns the presence of an on-board flash. The E-M10 has one, while the A7S 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 A7S 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 A7S 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.
Connectivity comparison
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 A7S and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Camera Model |
Hotshoe Port |
Internal Mic / Speaker |
Microphone Port |
Headphone Port |
HDMI Port |
USB Port |
WiFi Support |
NFC Support |
Bluetooth Support |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Olympus E-M10 | Y | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
2. | Sony A7S | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - | |
3. | Nikon Df | Y | - / - | - | - | mini | 2.0 | - | - | - | |
4. | Olympus E-M10 II | Y | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
5. | Olympus E-P5 | Y | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
6. | Olympus E-PL5 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
7. | Olympus E-PL6 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
8. | Olympus E-PL7 | Y | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
9. | Olympus E-PL9 | Y | stereo / mono | - | - | micro | 2.0 | Y | - | Y | |
10. | Olympus E-PL10 | Y | stereo / mono | - | - | micro | 2.0 | Y | - | Y | |
11. | Panasonic G6 | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | - | |
12. | Panasonic GX7 | Y | stereo / mono | - | - | mini | 2.0 | Y | Y | - | |
13. | Panasonic GX85 | Y | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
14. | Sony A7 | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - | |
15. | Sony A7R | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - | |
16. | Sony A7S II | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - | |
17. | Sony ZV-E1 | Y | stereo / mono | Y | Y | micro | 3.2 | Y | - | Y |
It is notable that the A7S 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 A7S have been discontinued, but can regularly be found used on ebay. The E-M10 was replaced by the Olympus E-M10 II, while the A7S was followed by the Sony A7S II. Further information on the features and operation of the E-M10 and A7S can be found, respectively, in the Olympus E-M10 Manual (free pdf) or the online Sony A7S Manual.
Review summary
So what conclusions can be drawn? Is the Olympus E-M10 better than the Sony A7S or vice versa? The listing below highlights the relative strengths of the two models.
Advantages of the Olympus OM-D E-M10:
- 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.
- More detailed LCD: Has a higher resolution rear screen (1037k vs 921k dots).
- 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 127x94mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 93g or 19 percent) and hence easier to carry around.
- Sharper images: Has hand-shake reducing image stabilization built-in.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More affordable: Was introduced into a lower priced category (72 percent cheaper at launch).
Arguments in favor of the Sony Alpha A7S:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better image quality: Scores substantially higher (15 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (1.1 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (0.9 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (2.1 stops ISO advantage).
- Better video: Provides higher movie framerates (1080/60p versus 1080/30p).
- 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 (0.71x vs 0.58x).
- 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.
- Longer lasting: Gets more shots (380 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 number of relative strengths (bullet points above) is taken as a guide, the A7S is the clear winner of the contest (16 : 11 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 Olympus E-M10 and the Sony A7S 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 remains incomplete and does no justice, for example, to the way the E-M10 or the A7S perform in practice. 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.
Expert reviews
This is why hands-on reviews by experts are important. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], 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.
Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price (USD) |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Olympus E-M10 | 4/5 | .. | .. | 80/100 | 5/5 | 5/5 | Jan 2014 | 699 | ebay.com | |
2. | Sony A7S | 4/5 | .. | .. | 86/100 | 4.5/5 | 5/5 | Apr 2014 | 2,499 | ebay.com | |
3. | Nikon Df | 4/5 | .. | .. | 81/100 | 4/5 | 4/5 | Nov 2013 | 2,749 | ebay.com | |
4. | Olympus E-M10 II | 4.5/5 | + + | .. | 80/100 | 5/5 | 5/5 | Aug 2015 | 649 | ebay.com | |
5. | Olympus E-P5 | 5/5 | + + | .. | 78/100 | 4.5/5 | 5/5 | May 2013 | 999 | ebay.com | |
6. | Olympus E-PL5 | 3/5 | + + | .. | .. | 4.5/5 | 4.5/5 | Sep 2012 | 599 | ebay.com | |
7. | Olympus E-PL6 | .. | .. | .. | .. | .. | .. | May 2013 | 599 | ebay.com | |
8. | Olympus E-PL7 | 4/5 | + | .. | .. | 5/5 | 4/5 | Aug 2014 | 599 | ebay.com | |
9. | Olympus E-PL9 | .. | + | .. | .. | 4.5/5 | 4/5 | Feb 2018 | 599 | ebay.com | |
10. | Olympus E-PL10 | .. | .. | 4/5 | 77/100 | .. | 4/5 | Oct 2019 | 599 | ebay.com | |
11. | Panasonic G6 | 4/5 | + + | .. | .. | 5/5 | 4.5/5 | Apr 2013 | 599 | ebay.com | |
12. | Panasonic GX7 | 4/5 | + | .. | 79/100 | 5/5 | 5/5 | Aug 2013 | 999 | ebay.com | |
13. | Panasonic GX85 | 4.5/5 | + + | .. | 82/100 | 5/5 | 5/5 | Apr 2016 | 799 | amazon.com | |
14. | Sony A7 | 5/5 | + + | .. | 80/100 | 5/5 | 5/5 | Oct 2013 | 1,699 | ebay.com | |
15. | Sony A7R | 5/5 | + + | .. | 82/100 | 4.5/5 | 5/5 | Oct 2013 | 2,299 | ebay.com | |
16. | Sony A7S II | 5/5 | + | .. | .. | 4.5/5 | 5/5 | Sep 2015 | 2,999 | ebay.com | |
17. | Sony ZV-E1 | .. | + | 4/5 | .. | .. | 4.5/5 | Mar 2023 | 2,199 | amazon.com | |
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
The review scores listed above should be treated 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 comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. 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? If you would like to see a different side-by-side camera review, just use the search menu below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
- Canon G1 X Mark II vs Olympus E-M10
- Canon M6 Mark II vs Sony A7S
- Fujifilm X-A10 vs Sony A7S
- Leica C-LUX vs Sony A7S
- Leica D-LUX Typ 109 vs Olympus E-M10
- Leica Q2 vs Olympus E-M10
- Olympus E-M10 vs Panasonic GH2
- Olympus E-M10 vs Sony NEX-5N
- Olympus E-M10 vs Zeiss ZX1
- Olympus E-PM1 vs Sony A7S
- Sony A7S vs Sony ZV-1
- Sony A7S vs Zeiss ZX1
Specifications: Olympus E-M10 vs Sony A7S
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 A7S |
---|---|---|
Camera Type | Mirrorless system camera | Mirrorless system camera |
Camera Lens | Micro Four Thirds lenses | Sony E mount lenses |
Launch Date | January 2014 | April 2014 |
Launch Price | USD 699 | USD 2,499 |
Sensor Specs | Olympus E-M10 | Sony A7S |
Sensor Technology | CMOS | CMOS |
Sensor Format | Four Thirds Sensor | Full Frame Sensor |
Sensor Size | 17.3 x 13.0 mm | 35.8 x 23.9 mm |
Sensor Area | 224.9 mm2 | 855.62 mm2 |
Sensor Diagonal | 21.6 mm | 43 mm |
Crop Factor | 2.0x | 1.0x |
Sensor Resolution | 15.9 Megapixels | 12 Megapixels |
Image Resolution | 4608 x 3456 pixels | 4240 x 2832 pixels |
Pixel Pitch | 3.76 μm | 8.45 μm |
Pixel Density | 7.08 MP/cm2 | 1.40 MP/cm2 |
Moiré control | no AA filter | Anti-Alias filter |
Movie Capability | 1080/30p Video | 1080/60p Video |
ISO Setting | 200 - 25,600 ISO | 100 - 102,400 ISO |
ISO Boost | 100 - 25,600 ISO | 50 - 409,600 ISO |
Image Processor | TruePic VII | BIONZ X |
DXO Sensor Quality (score) | 72 | 87 |
DXO Color Depth (bits) | 22.8 | 23.9 |
DXO Dynamic Range (EV) | 12.3 | 13.2 |
DXO Low Light (ISO) | 884 | 3702 |
Screen Specs | Olympus E-M10 | Sony A7S |
Viewfinder Type | Electronic viewfinder | Electronic viewfinder |
Viewfinder Field of View | 100% | 100% |
Viewfinder Magnification | 0.58x | 0.71x |
Viewfinder Resolution | 1440k dots | 2400k dots |
LCD Framing | Live View | Live View |
Rear LCD Size | 3.0inch | 3.0inch |
LCD Resolution | 1037k dots | 921k dots |
LCD Attachment | Tilting screen | Tilting screen |
Touch Input | Touchscreen | no Touchscreen |
Shooting Specs | Olympus E-M10 | Sony A7S |
Focus System | Contrast-detect AF | Contrast-detect AF |
Manual Focusing Aid | Focus Peaking | Focus Peaking |
Max Shutter Speed (mechanical) | 1/4000s | 1/8000s |
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 | Lens stabilization only |
Fill Flash | Built-in Flash | no On-Board Flash |
Storage Medium | SDXC cards | MS or SDXC cards |
Single or Dual Card Slots | Single card slot | Single card slot |
UHS card support | UHS-I | UHS-I |
Connectivity Specs | Olympus E-M10 | Sony A7S |
External Flash | Hotshoe | Hotshoe |
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 A7S |
Environmental Sealing | not weather sealed | Weathersealed body |
Battery Type | Olympus BLS-5 | Sony NP-FW50 |
Battery Life (CIPA) | 320 shots per charge | 380 shots per charge |
In-Camera Charging | no USB charging | USB charging |
Body Dimensions |
119 x 82 x 46 mm (4.7 x 3.2 x 1.8 in) |
127 x 94 x 48 mm (5.0 x 3.7 x 1.9 in) |
Camera Weight | 396 g (14.0 oz) | 489 g (17.2 oz) |
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