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Sony A7R vs Olympus E-M5 II

The Sony Alpha A7R and the Olympus OM-D E-M5 Mark II are two enthusiast cameras that were revealed to the public, respectively, in October 2013 and February 2015. Both the A7R and the E-M5 II are mirrorless interchangeable lens cameras that are based on a full frame (A7R) and a Four Thirds (E-M5 II) sensor. The Sony has a resolution of 36.2 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.

Headline Specifications
Sony A7R
versus
Olympus E-M5 II
Sony A7R   Olympus E-M5 II
Mirrorless system camera Mirrorless system camera
Sony E mount lenses Micro Four Thirds lenses
36.2 MP – Full Frame sensor 15.9 MP – Four Thirds sensor
1080/60p Video 1080/60p Video
ISO 100-25,600 (50 - 51,200) ISO 200-25,600
Electronic viewfinder (2400k dots) Electronic viewfinder (2360k dots)
3.0" LCD – 1230k dots 3.0" LCD – 1037k dots
Tilting screen (no touchscreen) Swivel touchscreen
4 shutter flaps per second 10 shutter flaps per second
Lens stabilization onlyIn-body stabilization
Weathersealed bodyWeathersealed body
340 shots per battery charge310 shots per battery charge
127 x 94 x 48 mm, 465 g 124 x 85 x 45 mm, 469 g
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Check A7R offers at
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Check E-M5 II offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Alpha A7R and the Olympus OM-D E-M5 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.

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Body comparison

An illustration of the physical size and weight of the Sony A7R and the Olympus E-M5 II is provided 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 width, height and depth dimensions are rounded to the nearest millimeter.

The E-M5 II can be obtained in two different colors (black, silver), while the A7R is only available in black.

Size Sony A7R vs Olympus E-M5 II
Compare A7R versus E-M5 II top
Comparison A7R or E-M5 II rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-M5 II is notably smaller (12 percent) than the Sony A7R. However, the E-M5 II is slightly heavier (1 percent) than the A7R. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

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) and the Micro Four Thirds Lens Catalog (E-M5 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 gets 340 shots out of its Sony NP-FW50 battery, while the E-M5 II can take 310 images on a single charge of its Olympus BLN-1 power pack. The power pack in the A7R can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

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Body Specifications
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Sony A7R 127 mm 94 mm 48 mm 465 g 340 Y Oct 2013 2,299ebay.com
2.
 
Olympus E-M5 II 124 mm 85 mm 45 mm 469 g 310 Y Feb 2015 1,099ebay.com
3.
 
Nikon D810 146 mm 123 mm 82 mm 980 g 1200 Y Jun 2014 3,299ebay.com
4.
 
Olympus E-M5 III 125 mm 85 mm 50 mm 414 g 310 Y Oct 2019 1,199ebay.com
5.
 
Olympus E-M10 II 120 mm 83 mm 47 mm 390 g 320 n Aug 2015 649ebay.com
6.
 
Olympus E-M10 119 mm 82 mm 46 mm 396 g 320 n Jan 2014 699ebay.com
7.
 
Olympus E-M1 130 mm 94 mm 63 mm 497 g 350 Y Sep 2013 1,399ebay.com
8.
 
Olympus E-M5 122 mm 89 mm 43 mm 425 g 360 Y Feb 2012 1,299ebay.com
9.
 
Sony A7C II 124 mm 71 mm 63 mm 514 g 540 Y Aug 2023 2,199 amazon.com
10.
 
Sony A7 IV 131 mm 96 mm 80 mm 659 g 580 Y Oct 2021 2,499 amazon.com
11.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 3,199ebay.com
12.
 
Sony RX1R II 113 mm 65 mm 72 mm 507 g 220 n Oct 2015 3,299ebay.com
13.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 1,999ebay.com
14.
 
Sony A7S 127 mm 94 mm 48 mm 489 g 380 Y Apr 2014 2,499ebay.com
15.
 
Sony A7 127 mm 94 mm 48 mm 474 g 340 Y Oct 2013 1,699ebay.com
16.
 
Sony RX1R 113 mm 65 mm 70 mm 482 g 270 n Jun 2013 2,799ebay.com
17.
 
Sony RX1 113 mm 65 mm 70 mm 482 g 270 n Sep 2012 2,799ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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Any camera decision will naturally be influenced heavily by the price. 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-M5 II was launched at a markedly lower price (by 52 percent) than the A7R, 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.

Sensor comparison

The size of the sensor inside a digital camera is one of the key determinants 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 more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Sony A7R features a full frame sensor and the Olympus E-M5 II a Four Thirds sensor. The sensor area in the E-M5 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 has a native 3:2 aspect ratio, while the one in the E-M5 II offers a 4:3 aspect.

Sony A7R and Olympus E-M5 II sensor measures

With 36.2MP, the A7R offers a higher resolution than the E-M5 II (15.9MP), but the A7R nevertheless has larger individual pixels (pixel pitch of 4.88μm versus 3.76μm for the E-M5 II) due to its larger sensor. However, the E-M5 II is a somewhat more recent model (by 1 year and 3 months) than the A7R, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the A7R has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A7R implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7R for good quality output (200 dots per inch) amounts to 36.8 x 24.6 inches or 93.5 x 62.4 cm, for very good quality (250 dpi) 29.4 x 19.6 inches or 74.8 x 49.9 cm, and for excellent quality (300 dpi) 24.5 x 16.4 inches or 62.3 x 41.6 cm. The corresponding values for the Olympus E-M5 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.

Unlike the A7R, the E-M5 II has the capacity to capture high quality composite images (40MP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

The Sony Alpha A7R has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 50-51200. The corresponding ISO settings for the Olympus OM-D E-M5 Mark II are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 100-25600.

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.

A7R versus E-M5 II MP

For many cameras, data on sensor performance has been reported by DXO Mark. 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 provides substantially higher image quality than the E-M5 II, with an overall score that is 22 points higher. This advantage is based on 2.6 bits higher color depth, 1.6 EV in additional dynamic range, and 1.7 stops in additional low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

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Sensor Characteristics
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Sony A7R Full Frame 36.2 7360 49121080/60p25.614.1274695
2.
 
Olympus E-M5 II Four Thirds 15.9 4608 34561080/60p23.012.584273
3.
 
Nikon D810 Full Frame 36.2 7360 49121080/60p25.714.8285397
4.
 
Olympus E-M5 III Four Thirds 20.2 5184 38884K/30p23.313.1132476
5.
 
Olympus E-M10 II Four Thirds 15.9 4608 34561080/60p23.112.584273
6.
 
Olympus E-M10 Four Thirds 15.9 4608 34561080/30p22.812.388472
7.
 
Olympus E-M1 Four Thirds 15.9 4608 34561080/30p23.012.775773
8.
 
Olympus E-M5 Four Thirds 15.9 4608 34561080/60i22.812.382671
9.
 
Sony A7C II Full Frame 32.7 7008 46724K/60p25.414.7323796
10.
 
Sony A7 IV Full Frame 32.7 7008 46724K/60p25.414.7337997
11.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
12.
 
Sony RX1R II Full Frame 42.2 7952 53041080/60p25.813.9320497
13.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
14.
 
Sony A7S Full Frame 12.0 4240 28321080/60p23.913.2370287
15.
 
Sony A7 Full Frame 24.0 6000 40001080/60p24.814.2224890
16.
 
Sony RX1R Full Frame 24.0 6000 40001080/60p25.013.6253791
17.
 
Sony RX1 Full Frame 24.0 6000 40001080/60p25.114.3253493
Note: DXO values in italics represent estimates based on sensor size and age.
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Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, and both provide the same movie specifications (1080/60p).

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Feature comparison

Apart from 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 offers a slightly higher resolution than the one in the E-M5 II (2400k vs 2360k dots). The following table reports on some other key feature differences and similarities of the Sony A7R, the Olympus E-M5 II, and comparable cameras.

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Core Features
# image 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 A7R2400 n3.0 / 1230 tilting n 1/8000s 4.0/s n n
2.
 
Olympus E-M5 II2360 n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
3.
 
Nikon D810optical Y3.2 / 1229 fixed n 1/8000s 5.0/s Y n
4.
 
Olympus E-M5 III2360 n3.0 / 1040 swivel Y 1/8000s 10.0/s n Y
5.
 
Olympus E-M10 II2360 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y Y
6.
 
Olympus E-M101440 n3.0 / 1037 tilting Y 1/4000s 8.0/s Y Y
7.
 
Olympus E-M12360 n3.0 / 1037 tilting Y 1/8000s 10.0/s n Y
8.
 
Olympus E-M51440 n3.0 / 610 tilting Y 1/4000s 9.0/s n Y
9.
 
Sony A7C II2360 n3.0 / 1037 swivel Y 1/4000s 10.0/s n Y
10.
 
Sony A7 IV3686 n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
11.
 
Sony A7R II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
12.
 
Sony RX1R II2360 n3.0 / 1229 tilting n 1/4000s 5.0/s n n
13.
 
Sony A7 II2400 n3.0 / 1230 tilting n 1/8000s 5.0/s n Y
14.
 
Sony A7S2400 n3.0 / 921 tilting n 1/8000s 5.0/s n n
15.
 
Sony A72400 n3.0 / 1230 tilting n 1/8000s 5.0/s n n
16.
 
Sony RX1Roptional n3.0 / 1229 fixed n 1/4000s 5.0/s Y n
17.
 
Sony RX1optional n3.0 / 1229 fixed n 1/4000s 5.0/s Y n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The E-M5 II has a touchscreen, while the A7R has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The E-M5 II has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the A7R does not have a selfie-screen.

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 E-M5 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-M5 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 writes its imaging data to SDXC or Memory Stick PRO Duo cards, while the E-M5 II uses SDXC cards. The E-M5 II supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the A7R can use UHS-I cards (up to 104 MB/s).

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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 and Olympus OM-D E-M5 Mark II and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Sony A7RYstereo / monoYYmicro2.0YY-
2.
 
Olympus E-M5 IIYstereo / monoY-micro2.0Y--
3.
 
Nikon D810Ystereo / monoYYmini3.0Y--
4.
 
Olympus E-M5 IIIYstereo / monoY-micro2.0Y-Y
5.
 
Olympus E-M10 IIYstereo / mono--micro2.0Y--
6.
 
Olympus E-M10Ystereo / mono--micro2.0Y--
7.
 
Olympus E-M1Ystereo / monoY-micro2.0Y--
8.
 
Olympus E-M5Ystereo / mono--mini2.0---
9.
 
Sony A7C IIYstereo / monoYYmicro3.2Y-Y
10.
 
Sony A7 IVYstereo / monoYYfull3.2Y-Y
11.
 
Sony A7R IIYstereo / monoYYmicro2.0YY-
12.
 
Sony RX1R IIYstereo / monoY-micro2.0YY-
13.
 
Sony A7 IIYstereo / monoYYmicro2.0YY-
14.
 
Sony A7SYstereo / monoYYmicro2.0YY-
15.
 
Sony A7Ystereo / monoYYmicro2.0YY-
16.
 
Sony RX1RYstereo / monoY-mini2.0---
17.
 
Sony RX1Ystereo / monoY-mini2.0---
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It is notable that the A7R has a headphone jack, which is not present on the E-M5 II This port makes it possible to attach external headphones and monitor the quality of sound during the recording process.

Studio photographers will appreciate that the Olympus E-M5 II (unlike the A7R) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the A7R and the E-M5 II have been discontinued, but can regularly be found used on ebay. The A7R was replaced by the Sony A7R II, while the E-M5 II was followed by the Olympus E-M5 III. Further information on the features and operation of the A7R and E-M5 II can be found, respectively, in the Sony A7R Manual (free pdf) or the online Olympus E-M5 II Manual.

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Review summary

So how do things add up? Is the Sony A7R better than the Olympus E-M5 II or vice versa? A synthesis of the relative strong points of each of the models is listed below.

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Reasons to prefer the Sony Alpha A7R:

  • More detail: Offers more megapixels (36.2 vs 15.9MP) with a 54% higher linear resolution.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (22 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (2.6 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (1.6 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (1.7 stops ISO advantage).
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • More detailed LCD: Has a higher resolution rear screen (1230k vs 1037k dots).
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • More heavily discounted: Has been on the market for longer (launched in October 2013).

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Arguments in favor of the Olympus OM-D E-M5 Mark II:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.74x vs 0.71x).
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (10 vs 4 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More compact: Is smaller (124x85mm vs 127x94mm) and will fit more readily into a bag.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More affordable: Was introduced into a lower priced category (52 percent cheaper at launch).
  • More modern: Was introduced somewhat (1 year and 3 months) more recently.

If the number of relative strengths (bullet points above) is taken as a guide, the E-M5 II is the clear winner of the contest (15 : 11 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 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.

A7R 11:15 E-M5 II

How about other alternatives? Do the specifications of the Sony A7R and the Olympus E-M5 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 partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the A7R or the E-M5 II. 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 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.

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Expert Camera Reviews
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Sony A7R5/5+ +..82/1004.5/55/5 Oct 2013 2,299ebay.com
2.
 
Olympus E-M5 II5/5+ +4.5/581/1005/55/5 Feb 2015 1,099ebay.com
3.
 
Nikon D8105/5..5/586/1005/54.5/5 Jun 2014 3,299ebay.com
4.
 
Olympus E-M5 III5/5+5/582/1004.5/54.5/5 Oct 2019 1,199ebay.com
5.
 
Olympus E-M10 II4.5/5+ +..80/1005/55/5 Aug 2015 649ebay.com
6.
 
Olympus E-M104/5....80/1005/55/5 Jan 2014 699ebay.com
7.
 
Olympus E-M15/5+ +..84/1004.5/54.5/5 Sep 2013 1,399ebay.com
8.
 
Olympus E-M54/5+ +..80/1004.5/55/5 Feb 2012 1,299ebay.com
9.
 
Sony A7C II4/5..4/587/1004.5/54.5/5 Aug 2023 2,199 amazon.com
10.
 
Sony A7 IV5/5+ +4.5/589/1004.5/54.5/5 Oct 2021 2,499 amazon.com
11.
 
Sony A7R II5/5+ +5/590/1005/55/5 Jun 2015 3,199ebay.com
12.
 
Sony RX1R II5/5....82/100..4.5/5 Oct 2015 3,299ebay.com
13.
 
Sony A7 II5/5+4/582/1004.5/55/5 Nov 2014 1,999ebay.com
14.
 
Sony A7S4/5....86/1004.5/55/5 Apr 2014 2,499ebay.com
15.
 
Sony A75/5+ +..80/1005/55/5 Oct 2013 1,699ebay.com
16.
 
Sony RX1R5/5......4/54.5/5 Jun 2013 2,799ebay.com
17.
 
Sony RX15/5....79/1004/54.5/5 Sep 2012 2,799ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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The review scores listed above should be treated with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. Thus, a score needs to be put into the context of the launch date and the launch price 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.

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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 use the search menu 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.

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    Specifications: Sony A7R vs Olympus E-M5 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 Specifications
    Camera Model Sony A7R Olympus E-M5 II
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Sony E mount lenses Micro Four Thirds lenses
    Launch Date October 2013 February 2015
    Launch Price USD 2,299 USD 1,099
    Sensor Specs Sony A7R Olympus E-M5 II
    Sensor Technology 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 36.2 Megapixels 15.9 Megapixels
    Image Resolution 7360 x 4912 pixels 4608 x 3456 pixels
    Pixel Pitch 4.88 μm 3.76 μm
    Pixel Density 4.20 MP/cm2 7.08 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 1080/60p Video 1080/60p Video
    ISO Setting 100 - 25,600 ISO 200 - 25,600 ISO
    ISO Boost 50 - 51,200 ISO 100 - 25,600 ISO
    Image Processor BIONZ X TruePic VII
    DXO Sensor Quality (score) 95 73
    DXO Color Depth (bits) 25.6 23.0
    DXO Dynamic Range (EV) 14.1 12.5
    DXO Low Light (ISO) 2746 842
    Screen Specs Sony A7R Olympus E-M5 II
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.71x 0.74x
    Viewfinder Resolution 2400k dots 2360k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1230k dots 1037k dots
    LCD Attachment Tilting screen Swivel screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Sony A7R Olympus E-M5 II
    Focus System Contrast-detect AF Contrast-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/8000s
    Continuous Shooting 4 shutter flaps/s 10 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/16000s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash no On-Board Flash no On-Board 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-II
    Connectivity Specs Sony A7R Olympus E-M5 II
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI micro HDMI
    Microphone Port External MIC port External MIC port
    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 Olympus E-M5 II
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Sony NP-FW50 Olympus BLN-1
    Battery Life (CIPA)340 shots per charge310 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 127 x 94 x 48 mm
    (5.0 x 3.7 x 1.9 in)
    124 x 85 x 45 mm
    (4.9 x 3.3 x 1.8 in)
    Camera Weight 465 g (16.4 oz) 469 g (16.5 oz)
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