Sony A7R II vs Olympus E-M10 II
The Sony Alpha A7R II and the Olympus OM-D E-M10 Mark II are two digital cameras that were officially introduced, respectively, in June 2015 and August 2015. Both the A7R II and the E-M10 II are mirrorless interchangeable lens cameras that are based on a full frame (A7R II) and a Four Thirds (E-M10 II) sensor. The Sony has a resolution of 42.2 megapixels, whereas the Olympus provides 15.9 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 Sony Alpha A7R II and the Olympus OM-D E-M10 Mark 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.
Body comparison
The physical size and weight of the Sony A7R II and the Olympus E-M10 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 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 Olympus E-M10 II is notably smaller (18 percent) than the Sony A7R II. Moreover, the E-M10 II is substantially lighter (38 percent) than the A7R II. It is worth mentioning in this context that the A7R II is splash and dust resistant, 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 Sony FE Lens Catalog (A7R II) and the Micro Four Thirds Lens Catalog (E-M10 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 A7R II gets 290 shots out of its Sony NP-FW50 battery, while the E-M10 II can take 320 images on a single charge of its Olympus BLS-50 power pack. The power pack in the A7R II can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.
# | Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price (USD) |
Street Price |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Sony A7R II | 127 mm | 96 mm | 60 mm | 625 g | 290 | Y | Jun 2015 | 3,199 | ebay.com | |
2. | Olympus E-M10 II | 120 mm | 83 mm | 47 mm | 390 g | 320 | n | Aug 2015 | 649 | ebay.com | |
3. | Olympus E-M10 III | 122 mm | 84 mm | 50 mm | 410 g | 330 | n | Aug 2017 | 649 | ebay.com | |
4. | Olympus E-PL8 | 115 mm | 67 mm | 38 mm | 357 g | 350 | n | Sep 2016 | 549 | ebay.com | |
5. | Olympus E-M10 | 119 mm | 82 mm | 46 mm | 396 g | 320 | n | Jan 2014 | 699 | ebay.com | |
6. | Olympus E-P5 | 122 mm | 69 mm | 37 mm | 420 g | 330 | n | May 2013 | 999 | ebay.com | |
7. | Olympus E-PL5 | 111 mm | 64 mm | 38 mm | 325 g | 360 | n | Sep 2012 | 599 | ebay.com | |
8. | Sony A7R V | 131 mm | 97 mm | 82 mm | 723 g | 530 | Y | Oct 2022 | 3,899 | amazon.com | |
9. | Sony A1 | 129 mm | 97 mm | 81 mm | 737 g | 530 | Y | Jan 2021 | 6,499 | amazon.com | |
10. | Sony A7R IIIA | 127 mm | 96 mm | 74 mm | 650 g | 650 | Y | Apr 2021 | 3,199 | amazon.com | |
11. | Sony A7R IVA | 129 mm | 96 mm | 78 mm | 665 g | 670 | Y | Apr 2021 | 3,499 | amazon.com | |
12. | Sony A7S III | 127 mm | 97 mm | 81 mm | 699 g | 600 | Y | Jul 2020 | 3,499 | amazon.com | |
13. | Sony A7R IV | 129 mm | 96 mm | 78 mm | 665 g | 670 | Y | Jul 2019 | 3,499 | ebay.com | |
14. | Sony A7R III | 127 mm | 96 mm | 74 mm | 650 g | 650 | Y | Oct 2017 | 3,199 | ebay.com | |
15. | Sony A99 II | 143 mm | 104 mm | 76 mm | 849 g | 490 | Y | Sep 2016 | 3,199 | ebay.com | |
16. | Sony A7S II | 127 mm | 96 mm | 60 mm | 627 g | 370 | Y | Sep 2015 | 2,999 | ebay.com | |
17. | Sony A7R | 127 mm | 94 mm | 48 mm | 465 g | 340 | Y | Oct 2013 | 2,299 | ebay.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 obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The E-M10 II was launched at a markedly lower price (by 80 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.
Sensor comparison
The size of the sensor inside a digital camera is one of the key determinants of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units 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 Sony A7R II features a full frame sensor and the Olympus E-M10 II a Four Thirds sensor. The sensor area in the E-M10 II is 74 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 2.0. The sensor in the A7R II has a native 3:2 aspect ratio, while the one in the E-M10 II offers a 4:3 aspect.
With 42.2MP, the A7R II offers a higher resolution than the E-M10 II (15.9MP), but the A7R II nevertheless has larger individual pixels (pixel pitch of 4.52μm versus 3.76μm for the E-M10 II) due to its larger sensor. 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 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 inches or 101 x 67.4 cm, for very good quality (250 dpi) 31.8 x 21.2 inches or 80.8 x 53.9 cm, and for excellent quality (300 dpi) 26.5 x 17.7 inches or 67.3 x 44.9 cm. The corresponding values for the Olympus E-M10 II are 23 x 17.3 inches or 58.5 x 43.9 cm for good quality, 18.4 x 13.8 inches or 46.8 x 35.1 cm for very good quality, and 15.4 x 11.5 inches 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 Sony Alpha A7R II has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 50-102400. The corresponding ISO settings for the Olympus OM-D E-M10 Mark II are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 100-25600.
In terms of underlying technology, the A7R II is build around a BSI-CMOS sensor, while the E-M10 II uses a CMOS imager. 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 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"). Of the two cameras under review, the A7R II provides substantially higher image quality than the E-M10 II, with an overall score that is 25 points higher. This advantage is based on 2.9 bits higher color depth, 1.4 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.
# | Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Sony A7R II | Full Frame | 42.2 | 7952 | 5304 | 4K/30p | 26.0 | 13.9 | 3434 | 98 | |
2. | Olympus E-M10 II | Four Thirds | 15.9 | 4608 | 3456 | 1080/60p | 23.1 | 12.5 | 842 | 73 | |
3. | Olympus E-M10 III | Four Thirds | 15.9 | 4608 | 3456 | 4K/30p | 23.1 | 12.8 | 1120 | 74 | |
4. | Olympus E-PL8 | Four Thirds | 15.9 | 4608 | 3456 | 1080/30p | 23.0 | 12.6 | 1030 | 73 | |
5. | Olympus E-M10 | Four Thirds | 15.9 | 4608 | 3456 | 1080/30p | 22.8 | 12.3 | 884 | 72 | |
6. | Olympus E-P5 | Four Thirds | 15.9 | 4608 | 3456 | 1080/30p | 22.8 | 12.4 | 895 | 72 | |
7. | Olympus E-PL5 | Four Thirds | 15.9 | 4608 | 3456 | 1080/30p | 22.8 | 12.3 | 889 | 72 | |
8. | Sony A7R V | Full Frame | 60.2 | 9504 | 6336 | 8k/24p | 26.5 | 14.8 | 3187 | 100 | |
9. | Sony A1 | Full Frame | 49.8 | 8640 | 5760 | 8k/30p | 25.9 | 14.5 | 3163 | 98 | |
10. | Sony A7R IIIA | Full Frame | 42.2 | 7952 | 5304 | 4K/30p | 26.0 | 14.7 | 3523 | 100 | |
11. | Sony A7R IVA | Full Frame | 60.2 | 9504 | 6336 | 4K/30p | 26.0 | 14.8 | 3344 | 99 | |
12. | Sony A7S III | Full Frame | 12.0 | 4240 | 2832 | 4K/120p | 23.7 | 13.9 | 2520 | 86 | |
13. | Sony A7R IV | Full Frame | 60.2 | 9504 | 6336 | 4K/30p | 26.0 | 14.8 | 3344 | 99 | |
14. | Sony A7R III | Full Frame | 42.2 | 7952 | 5304 | 4K/30p | 26.0 | 14.7 | 3523 | 100 | |
15. | Sony A99 II | Full Frame | 42.2 | 7952 | 5304 | 4K/30p | 25.4 | 13.4 | 2317 | 92 | |
16. | Sony A7S II | Full Frame | 12.0 | 4240 | 2832 | 4K/30p | 23.6 | 13.3 | 2993 | 85 | |
17. | Sony A7R | Full Frame | 36.2 | 7360 | 4912 | 1080/60p | 25.6 | 14.1 | 2746 | 95 | |
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 A7R II provides a higher video resolution than the E-M10 II. It can shoot video footage at 4K/30p, while the Olympus is limited to 1080/60p.
Feature comparison
Beyond body and sensor, cameras can and do differ across a range of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the A7R II offers a slightly higher resolution than the one in the E-M10 II (2400k vs 2360k dots). The table below summarizes some of the other core capabilities of the Sony A7R II and Olympus E-M10 II in connection with corresponding information for a sample of similar cameras.
# | 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. | Sony A7R II | 2400 | n | 3.0 / 1229 | tilting | n | 1/8000s | 5.0/s | n | Y | |
2. | Olympus E-M10 II | 2360 | n | 3.0 / 1040 | tilting | Y | 1/4000s | 8.0/s | Y | Y | |
3. | Olympus E-M10 III | 2360 | n | 3.0 / 1040 | tilting | Y | 1/4000s | 8.6/s | Y | Y | |
4. | Olympus E-PL8 | optional | n | 3.0 / 1037 | tilting | Y | 1/4000s | 8.0/s | n | Y | |
5. | Olympus E-M10 | 1440 | n | 3.0 / 1037 | tilting | Y | 1/4000s | 8.0/s | Y | Y | |
6. | Olympus E-P5 | optional | n | 3.0 / 1037 | tilting | Y | 1/8000s | 9.0/s | Y | Y | |
7. | Olympus E-PL5 | optional | n | 3.0 / 460 | tilting | Y | 1/4000s | 8.0/s | n | Y | |
8. | Sony A7R V | 9440 | n | 3.2 / 2100 | full-flex | Y | 1/8000s | 10.0/s | n | Y | |
9. | Sony A1 | 9437 | n | 3.0 / 1440 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
10. | Sony A7R IIIA | 3686 | n | 3.0 / 2340 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
11. | Sony A7R IVA | 5760 | n | 3.0 / 2340 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
12. | Sony A7S III | 9440 | n | 3.0 / 1440 | swivel | Y | 1/8000s | 10.0/s | n | Y | |
13. | Sony A7R IV | 5760 | n | 3.0 / 1440 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
14. | Sony A7R III | 3686 | n | 3.0 / 1440 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
15. | Sony A99 II | 2400 | Y | 3.0 / 1229 | full-flex | n | 1/8000s | 12.0/s | n | Y | |
16. | Sony A7S II | 2400 | n | 3.0 / 1229 | tilting | n | 1/8000s | 5.0/s | n | Y | |
17. | Sony A7R | 2400 | n | 3.0 / 1230 | tilting | n | 1/8000s | 4.0/s | n | n | |
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one. |
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The E-M10 II has a touchscreen, while the A7R II has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.
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 A7R II writes its imaging data to SDXC or Memory Stick PRO Duo cards, while the E-M10 II uses SDXC 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 Sony Alpha A7R II and Olympus OM-D E-M10 Mark II 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. | Sony A7R II | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - | |
2. | Olympus E-M10 II | Y | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
3. | Olympus E-M10 III | Y | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
4. | Olympus E-PL8 | Y | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
5. | Olympus E-M10 | Y | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
6. | Olympus E-P5 | Y | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
7. | Olympus E-PL5 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
8. | Sony A7R V | Y | stereo / mono | Y | Y | full | 3.2 | Y | - | Y | |
9. | Sony A1 | Y | stereo / mono | Y | Y | full | 3.2 | Y | - | Y | |
10. | Sony A7R IIIA | Y | stereo / mono | Y | Y | micro | 3.2 | Y | Y | Y | |
11. | Sony A7R IVA | Y | stereo / mono | Y | Y | micro | 3.2 | Y | Y | Y | |
12. | Sony A7S III | Y | stereo / mono | Y | Y | full | 3.2 | Y | - | Y | |
13. | Sony A7R IV | Y | stereo / mono | Y | Y | micro | 3.1 | Y | Y | Y | |
14. | Sony A7R III | Y | stereo / mono | Y | Y | micro | 3.1 | Y | Y | Y | |
15. | Sony A99 II | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | Y | |
16. | Sony A7S II | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - | |
17. | Sony A7R | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - |
It is notable that the A7R II has a microphone port, which is missing on the E-M10 II. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.
Both the A7R II and the E-M10 II have been discontinued, but can regularly be found used on ebay. The A7R II was replaced by the Sony A7R III, while the E-M10 II was followed by the Olympus E-M10 III. Further information on the features and operation of the A7R II and E-M10 II can be found, respectively, in the Sony A7R II Manual (free pdf) or the online Olympus E-M10 II Manual.
Review summary
So how do things add up? Is the Sony A7R II better than the Olympus E-M10 II or vice versa? Below is a summary of the relative strengths of each of the two contestants.
Reasons to prefer the Sony Alpha A7R II:
- More detail: Offers more megapixels (42.2 vs 15.9MP) with a 66% higher linear resolution.
- Better image quality: Scores substantially higher (25 points) in the DXO overall assessment.
- Richer colors: Generates images with noticeably better colors (2.9 bits more color depth).
- More dynamic range: Captures a larger spectrum of light and dark details (1.4 EV of extra DR).
- Better low-light sensitivity: Requires less light for good images (2 stops ISO advantage).
- Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
- 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.
- 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.
- Easier travel charging: Can be conveniently charged via its USB port.
- Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
- Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
Advantages of the Olympus OM-D E-M10 Mark II:
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- 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 will fit more readily into a bag.
- Less heavy: Has a lower weight (by 235g or 38 percent) and is thus easier to take along.
- Longer lasting: Gets more shots (320 versus 290) out of a single battery charge.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- More affordable: Was introduced into a lower priced category (80 percent cheaper at launch).
If the count of individual advantages (bullet points above) is taken as a guide, the A7R II is the clear winner of the match-up (15 : 8 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 sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape 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 Sony A7R II and the Olympus E-M10 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 remains incomplete and does no justice, for example, to the way the A7R II or the E-M10 II perform in practice. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.
Expert reviews
This is why expert reviews are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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. | Sony A7R II | 5/5 | + + | 5/5 | 90/100 | 5/5 | 5/5 | Jun 2015 | 3,199 | ebay.com | |
2. | Olympus E-M10 II | 4.5/5 | + + | .. | 80/100 | 5/5 | 5/5 | Aug 2015 | 649 | ebay.com | |
3. | Olympus E-M10 III | .. | + | 5/5 | 80/100 | 4.5/5 | 4.5/5 | Aug 2017 | 649 | ebay.com | |
4. | Olympus E-PL8 | .. | .. | .. | .. | 4.5/5 | 4/5 | Sep 2016 | 549 | ebay.com | |
5. | Olympus E-M10 | 4/5 | .. | .. | 80/100 | 5/5 | 5/5 | Jan 2014 | 699 | ebay.com | |
6. | Olympus E-P5 | 5/5 | + + | .. | 78/100 | 4.5/5 | 5/5 | May 2013 | 999 | ebay.com | |
7. | Olympus E-PL5 | 3/5 | + + | .. | .. | 4.5/5 | 4.5/5 | Sep 2012 | 599 | ebay.com | |
8. | Sony A7R V | 5/5 | + + | 4.5/5 | 92/100 | .. | .. | Oct 2022 | 3,899 | amazon.com | |
9. | Sony A1 | 5/5 | o | 4.5/5 | 93/100 | 4.5/5 | 5/5 | Jan 2021 | 6,499 | amazon.com | |
10. | Sony A7R IIIA | .. | + + | 4/5 | 90/100 | 4.5/5 | 5/5 | Apr 2021 | 3,199 | amazon.com | |
11. | Sony A7R IVA | 5/5 | + | 4.5/5 | 91/100 | 4.5/5 | 5/5 | Apr 2021 | 3,499 | amazon.com | |
12. | Sony A7S III | 4.5/5 | + + | 5/5 | 91/100 | 4.5/5 | 5/5 | Jul 2020 | 3,499 | amazon.com | |
13. | Sony A7R IV | 5/5 | + | 4.5/5 | 91/100 | 4.5/5 | 5/5 | Jul 2019 | 3,499 | ebay.com | |
14. | Sony A7R III | .. | + + | 4/5 | 90/100 | 4.5/5 | 5/5 | Oct 2017 | 3,199 | ebay.com | |
15. | Sony A99 II | .. | .. | 4.5/5 | 85/100 | 4.5/5 | 4.5/5 | Sep 2016 | 3,199 | ebay.com | |
16. | Sony A7S II | 5/5 | + | .. | .. | 4.5/5 | 5/5 | Sep 2015 | 2,999 | ebay.com | |
17. | Sony A7R | 5/5 | + + | .. | 82/100 | 4.5/5 | 5/5 | Oct 2013 | 2,299 | ebay.com | |
Note: (+ +) 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
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. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
- Canon 1D Mark II vs Sony A7R II
- Canon T3i vs Sony A7R II
- Fujifilm X-H2 vs Sony A7R II
- Leica C-LUX vs Olympus E-M10 II
- Leica M Typ 262 vs Olympus E-M10 II
- Nikon D800 vs Sony A7R II
- Nikon Z9 vs Olympus E-M10 II
- Olympus E-M1 II vs Olympus E-M10 II
- Olympus E-M1 III vs Sony A7R II
- Olympus E-M10 II vs Panasonic S5
- Olympus E-M10 II vs Sony HX350
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Specifications: Sony A7R II vs Olympus E-M10 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 | Sony A7R II | Olympus E-M10 II |
---|---|---|
Camera Type | Mirrorless system camera | Mirrorless system camera |
Camera Lens | Sony E mount lenses | Micro Four Thirds lenses |
Launch Date | June 2015 | August 2015 |
Launch Price | USD 3,199 | USD 649 |
Sensor Specs | Sony A7R II | Olympus E-M10 II |
Sensor Technology | BSI-CMOS | CMOS |
Sensor Format | Full Frame Sensor | Four Thirds Sensor |
Sensor Size | 35.9 x 24.0 mm | 17.3 x 13.0 mm |
Sensor Area | 861.6 mm2 | 224.9 mm2 |
Sensor Diagonal | 43.2 mm | 21.6 mm |
Crop Factor | 1.0x | 2.0x |
Sensor Resolution | 42.2 Megapixels | 15.9 Megapixels |
Image Resolution | 7952 x 5304 pixels | 4608 x 3456 pixels |
Pixel Pitch | 4.52 μm | 3.76 μm |
Pixel Density | 4.90 MP/cm2 | 7.08 MP/cm2 |
Moiré control | no AA filter | no AA filter |
Movie Capability | 4K/30p Video | 1080/60p Video |
ISO Setting | 100 - 25,600 ISO | 200 - 25,600 ISO |
ISO Boost | 50 - 102,400 ISO | 100 - 25,600 ISO |
Image Processor | BIONZ X | TruePic VII |
DXO Sensor Quality (score) | 98 | 73 |
DXO Color Depth (bits) | 26.0 | 23.1 |
DXO Dynamic Range (EV) | 13.9 | 12.5 |
DXO Low Light (ISO) | 3434 | 842 |
Screen Specs | Sony A7R II | Olympus E-M10 II |
Viewfinder Type | Electronic viewfinder | Electronic viewfinder |
Viewfinder Field of View | 100% | 100% |
Viewfinder Magnification | 0.78x | 0.62x |
Viewfinder Resolution | 2400k dots | 2360k dots |
LCD Framing | Live View | Live View |
Rear LCD Size | 3.0inch | 3.0inch |
LCD Resolution | 1229k dots | 1040k dots |
LCD Attachment | Tilting screen | Tilting screen |
Touch Input | no Touchscreen | Touchscreen |
Shooting Specs | Sony A7R II | Olympus E-M10 II |
Focus System | On-Sensor Phase-detect | Contrast-detect AF |
Manual Focusing Aid | Focus Peaking | Focus Peaking |
Max Shutter Speed (mechanical) | 1/8000s | 1/4000s |
Continuous Shooting | 5 shutter flaps/s | 8 shutter flaps/s |
Electronic Shutter | YES | up to 1/16000s |
Time-Lapse Photography | no Intervalometer | Intervalometer built-in |
Image Stabilization | In-body stabilization | In-body stabilization |
Fill Flash | no On-Board Flash | Built-in Flash |
Storage Medium | MS or SDXC cards | SDXC cards |
Single or Dual Card Slots | Single card slot | Single card slot |
UHS card support | UHS-I | UHS-I |
Connectivity Specs | Sony A7R II | Olympus E-M10 II |
External Flash | Hotshoe | Hotshoe |
USB Connector | USB 2.0 | USB 2.0 |
HDMI Port | micro HDMI | micro HDMI |
Microphone Port | External MIC port | no MIC socket |
Headphone Socket | Headphone port | no Headphone port |
Wifi Support | Wifi built-in | Wifi built-in |
Near-Field Communication | NFC built-in | no NFC |
Body Specs | Sony A7R II | Olympus E-M10 II |
Environmental Sealing | Weathersealed body | not weather sealed |
Battery Type | Sony NP-FW50 | Olympus BLS-50 |
Battery Life (CIPA) | 290 shots per charge | 320 shots per charge |
In-Camera Charging | USB charging | no USB charging |
Body Dimensions |
127 x 96 x 60 mm (5.0 x 3.8 x 2.4 in) |
120 x 83 x 47 mm (4.7 x 3.3 x 1.9 in) |
Camera Weight | 625 g (22.0 oz) | 390 g (13.8 oz) |
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