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Olympus E-P3 vs Sony A7R II

The Olympus PEN E-P3 and the Sony Alpha A7R II are two enthusiast cameras that were revealed to the public, respectively, in June 2011 and June 2015. Both the E-P3 and the A7R II are mirrorless interchangeable lens cameras that are based on a Four Thirds (E-P3) and a full frame (A7R II) sensor. The Olympus has a resolution of 12.2 megapixels, whereas the Sony provides 42.2 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Olympus E-P3 versus Sony A7R II
Olympus E-P3 Sony A7R II
Mirrorless system camera Mirrorless system camera
Micro Four Thirds lenses Sony E mount lenses
12.2 MP, Four Thirds Sensor 42.2 MP, Full Frame Sensor
1080/60i Video 4K/30p Video
ISO 200-12,800 ISO 100-25,600 (50 - 102,400)
Viewfinder optional Electronic viewfinder (2400k dots)
3.0 LCD, 614k dots 3.0 LCD, 1229k dots
Fixed touchscreen Tilting screen (not touch-sensitive)
3 shutter flaps per second 5 shutter flaps per second
In-body stabilizationIn-body stabilization
not weather sealedWeathersealed body
330 shots per battery charge290 shots per battery charge
122 x 69 x 34 mm, 369 g 127 x 96 x 60 mm, 625 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus PEN E-P3 and the Sony Alpha A7R II? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

Body comparison

The side-by-side display below illustrates the physical size and weight of the Olympus E-P3 and the Sony A7R II. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth measures are rounded to the nearest millimeter.

The E-P3 can be obtained in three different colors (black, silver, white), while the A7R II is only available in black.

Size Olympus E-P3 vs Sony A7R II
Compare E-P3 versus A7R II top
Comparison E-P3 or A7R II rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7R II is considerably larger (45 percent) than the Olympus E-P3. Moreover, the A7R II is substantially heavier (69 percent) than the E-P3. It is noteworthy in this context that the A7R II is splash and dust-proof, while the E-P3 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-P3) and the Sony FE Lens Catalog (A7R II). Mirrorless cameras, such as the two under consideration, have the additional advantage of having a short flange to focal plane distance, which makes it possible to mount many lenses from other systems onto the camera via adapters.

Concerning battery life, the E-P3 gets 330 shots out of its BLS-5 battery, while the A7R II can take 290 images on a single charge of its NP-FW50 power pack. The power pack in the A7R II can be charged via the USB port, which can be very convenient when travelling.

The 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.

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Body Specifications
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Olympus E-P3 4.8 in 2.7 in 1.3 in 13.0 oz 330 n Jun 2011 799i
2.
 
Sony A7R II 5.0 in 3.8 in 2.4 in 22.0 oz 290 Y Jun 2015 3,199i
3.
 
Olympus E-P5 4.8 in 2.7 in 1.5 in 14.8 oz 330 n May 2013 999i
4.
 
Olympus E-PL5 4.4 in 2.5 in 1.5 in 11.5 oz 360 n Sep 2012 599i
5.
 
Olympus E-PL2 4.5 in 2.8 in 1.7 in 12.8 oz 280 n Jan 2011 599i
6.
 
Olympus E-PL3 4.3 in 2.5 in 1.5 in 11.0 oz 300 n Jun 2011 599i
7.
 
Olympus E-PM1 4.3 in 2.5 in 1.3 in 9.3 oz 330 n Jun 2011 499i
8.
 
Olympus E-PL1 4.5 in 2.8 in 1.7 in 11.8 oz 290 n Feb 2010 599i
9.
 
Olympus E-P1 4.8 in 2.8 in 1.4 in 12.5 oz 300 n Jun 2009 799i
10.
 
Olympus E-P2 4.8 in 2.8 in 1.4 in 12.5 oz 300 n Nov 2009 799i
11.
 
Panasonic GX1 4.6 in 2.7 in 1.5 in 11.2 oz 320 n Nov 2011 699i
12.
 
Panasonic G10 4.9 in 3.3 in 2.9 in 13.7 oz 380 n Mar 2010 499i
13.
 
Sony A7S III 5.0 in 3.8 in 3.2 in 24.7 oz 600 Y Jul 2020 3,499 i
14.
 
Sony A7R III 5.0 in 3.8 in 2.9 in 22.9 oz 650 Y Oct 2017 3,199i
15.
 
Sony A7S II 5.0 in 3.8 in 2.4 in 22.1 oz 370 Y Sep 2015 2,999i
16.
 
Sony A7 II 5.0 in 3.8 in 2.4 in 21.1 oz 350 Y Nov 2014 1,999i
17.
 
Sony A7R 5.0 in 3.7 in 1.9 in 16.4 oz 340 Y Oct 2013 2,299i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The E-P3 was launched at a markedly lower price (by 75 percent) than the A7R 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.

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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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Olympus E-P3 features a Four Thirds sensor and the Sony A7R II a full frame sensor. The sensor area in the A7R II is 283 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 1.0. The sensor in the E-P3 has a native 4:3 aspect ratio, while the one in the A7R II offers a 3:2 aspect.

Olympus E-P3 and Sony A7R II sensor measures

With 42.2MP, the A7R II offers a higher resolution than the E-P3 (12.2MP), but the A7R II nevertheless has larger individual pixels (pixel pitch of 4.52μm versus 4.29μm for the E-P3) due to its larger sensor. Moreover, the A7R II is a much more recent model (by 3 years and 11 months) than the E-P3, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the A7R II has no anti-alias filter installed, so that it can capture all the detail its 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-P3 are 20.2 x 15.1 inches or 51.2 x 38.4 cm for good quality, 16.1 x 12.1 inches or 41 x 30.7 cm for very good quality, and 13.4 x 10.1 inches or 34.1 x 25.6 cm for excellent quality prints.

The A7R II has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Olympus PEN E-P3 has a native sensitivity range from ISO 200 to ISO 12800. The corresponding ISO settings for the Sony Alpha A7R II are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-102400.

E-P3 versus A7R II MP

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 consideration, the A7R II offers substantially better image quality than the E-P3 (overall score 47 points higher). The advantage is based on 5.2 bits higher color depth, 3.8 EV in additional dynamic range, and 2.7 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.

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Sensor Characteristics
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Olympus E-P3 Four Thirds 12.2 4032 30241080/60i20.810.153651
2.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
3.
 
Olympus E-P5 Four Thirds 15.9 4608 34561080/30p22.812.489572
4.
 
Olympus E-PL5 Four Thirds 15.9 4608 34561080/30p22.812.388972
5.
 
Olympus E-PL2 Four Thirds 12.2 4032 3024720/30p21.410.257355
6.
 
Olympus E-PL3 Four Thirds 12.2 4032 30241080/60i20.910.349952
7.
 
Olympus E-PM1 Four Thirds 12.2 4032 30241080/60i21.010.349952
8.
 
Olympus E-PL1 Four Thirds 12.2 4032 3024720/30p21.510.148754
9.
 
Olympus E-P1 Four Thirds 12.2 4032 3024720/30p21.410.453655
10.
 
Olympus E-P2 Four Thirds 12.2 4032 3024720/30p21.510.450556
11.
 
Panasonic GX1 Four Thirds 15.8 4592 34481080/60p20.810.670355
12.
 
Panasonic G10 Four Thirds 12.0 4000 3000720/30p21.210.141152
13.
 
Sony A7S III Full Frame 12.0 4240 28324K/120p23.713.9252086
14.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
15.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
16.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
17.
 
Sony A7R Full Frame 36.2 7360 49121080/60p25.614.1274695

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 A7R II provides a better video resolution than the E-P3. It can shoot movie footage at 4K/30p, while the Olympus is limited to 1080/60i.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the A7R II has an electronic viewfinder (2400k dots), which can be very helpful when shooting in bright sunlight. In contrast, the E-P3 relies on live view and the rear LCD for framing. That said, the E-P3 can be equipped with an optional viewfinder – the VF-3. The table below summarizes some of the other core capabilities of the Olympus E-P3 and Sony A7R II in connection with corresponding information for a sample of similar cameras.

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Core Features
    Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
(000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Olympus E-P3optional n 3.0 614 fixed Y 1/4000s 3.0 Y Y
2.
 
Sony A7R II2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y
3.
 
Olympus E-P5optional n 3.0 1037 tilting Y 1/8000s 9.0 Y Y
4.
 
Olympus E-PL5optional n 3.0 460 tilting Y 1/4000s 8.0 n Y
5.
 
Olympus E-PL2optional n 3.0 460 fixed n 1/4000s 3.0 Y Y
6.
 
Olympus E-PL3optional n 3.0 460 tilting n 1/4000s 5.5 n Y
7.
 
Olympus E-PM1optional n 3.0 460 fixed n 1/4000s 5.5 n Y
8.
 
Olympus E-PL1optional n 2.7 230 fixed n 1/2000s 3.0 Y Y
9.
 
Olympus E-P1none n 3.0 230 fixed n 1/4000s 3.0 n Y
10.
 
Olympus E-P2optional n 3.0 230 fixed n 1/4000s 3.0 n Y
11.
 
Panasonic GX1optional n 3.0 460 fixed Y 1/4000s 4.2 Y n
12.
 
Panasonic G10202 n 3.0 460 fixed n 1/4000s 2.6 Y n
13.
 
Sony A7S III9440 n 3.0 1440 swivel Y 1/8000s 10.0 n Y
14.
 
Sony A7R III3686 n 3.0 1440 tilting Y 1/8000s 10.0 n Y
15.
 
Sony A7S II2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y
16.
 
Sony A7 II2400 n 3.0 1230 tilting n 1/8000s 5.0 n Y
17.
 
Sony A7R2400 n 3.0 1230 tilting n 1/8000s 4.0 n n

One difference between the cameras concerns the presence of an on-board flash. The E-P3 has one, while the A7R II does not. While the built-in flash of the E-P3 is not very powerful, it can at times be useful as a fill-in light.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the A7R II is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The E-P3 writes its imaging data to SDXC cards, while the A7R II uses SDXC or Memory Stick PRO Duo cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

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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 Olympus PEN E-P3 and Sony Alpha A7R 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
    Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Olympus E-P3Ystereo---mini2.0---
2.
 
Sony A7R IIYstereomonoYYmicro2.0YY-
3.
 
Olympus E-P5Ystereomono--micro2.0Y--
4.
 
Olympus E-PL5Ystereomono--mini2.0---
5.
 
Olympus E-PL2Ystereo---mini2.0---
6.
 
Olympus E-PL3Ystereo---mini2.0---
7.
 
Olympus E-PM1Ystereomono--mini2.0---
8.
 
Olympus E-PL1Ystereo---mini2.0---
9.
 
Olympus E-P1Ystereo---mini2.0---
10.
 
Olympus E-P2Ystereo---mini2.0---
11.
 
Panasonic GX1Ystereomono--mini2.0---
12.
 
Panasonic G10Ymono---mini2.0---
13.
 
Sony A7S IIIYstereomonoYYfull3.2Y-Y
14.
 
Sony A7R IIIYstereomonoYYmicro3.1YYY
15.
 
Sony A7S IIYstereomonoYYmicro2.0YY-
16.
 
Sony A7 IIYstereomonoYYmicro2.0YY-
17.
 
Sony A7RYstereomonoYYmicro2.0YY-

It is notable that the A7R II offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the E-P3 does not provide wifi capability.

Both the E-P3 and the A7R II have been discontinued, but can regularly be found used on eBay. The E-P3 was replaced by the Olympus E-P5, while the A7R II was followed by the Sony Alpha A7R III. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Olympus and Sony websites.

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Review summary

So what is the bottom line? Which of the two cameras – the Olympus E-P3 or the Sony A7R II – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

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Advantages of the Olympus PEN E-P3:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • More compact: Is smaller (122x69mm vs 127x96mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 256g or 41 percent) and hence easier to carry around.
  • Longer lasting: Can take more shots (330 versus 290) on a single battery charge.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced into a lower priced category (75 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in June 2011).

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Reasons to prefer the Sony Alpha A7R II:

  • More detail: Has more megapixels (42.2 vs 12.2MP), which boosts linear resolution by 90%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (47 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (5.2 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (3.8 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (2.7 stops ISO advantage).
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60i).
  • 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.
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1229k vs 614k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (5 vs 3 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • More modern: Reflects 3 years and 11 months of technical progress since the E-P3 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the A7R II is the clear winner of the contest (21 : 8 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision 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.

E-P3 08:21 A7R II

How about other alternatives? Do the specifications of the Olympus E-P3 and the Sony A7R II place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera listing whether the two cameras rank among the cream of the crop.

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it says little about, for example, the shooting experience and imaging performance of the E-P3 and the A7R 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.

Expert reviews

This is where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (amateurphotographer [AP], cameralabs [CL], 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
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Olympus E-P3..83/10074/1004.5/54.5/5 Jun 2011 799i
2.
 
Sony A7R II5/5+ +90/1005/55/5 Jun 2015 3,199i
3.
 
Olympus E-P55/5+ +78/1004.5/55/5 May 2013 999i
4.
 
Olympus E-PL53/5+ +..4.5/54.5/5 Sep 2012 599i
5.
 
Olympus E-PL23/583/10071/1004.5/54.5/5 Jan 2011 599i
6.
 
Olympus E-PL33/5+ +72/1004.5/54/5 Jun 2011 599i
7.
 
Olympus E-PM1..86/10071/1004.5/54.5/5 Jun 2011 499i
8.
 
Olympus E-PL1..86/10069/1004/54.5/5 Feb 2010 599i
9.
 
Olympus E-P1..+66/1004/54.5/5 Jun 2009 799i
10.
 
Olympus E-P23/5+69/1004/54.5/5 Nov 2009 799i
11.
 
Panasonic GX13/5+77/1004.5/54.5/5 Nov 2011 699i
12.
 
Panasonic G103/5..70/1004/54/5 Mar 2010 499i
13.
 
Sony A7S III..+ +91/1004.5/55/5 Jul 2020 3,499 i
14.
 
Sony A7R III..+ +90/1004.5/55/5 Oct 2017 3,199i
15.
 
Sony A7S II5/5+..4.5/55/5 Sep 2015 2,999i
16.
 
Sony A7 II5/5+82/1004.5/55/5 Nov 2014 1,999i
17.
 
Sony A7R5/5+ +82/1004.5/55/5 Oct 2013 2,299i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Olympus E-P3:
Check Ebay offers
Sony A7R II:
Check Ebay offers

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. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Olympus E-P3 vs Sony A7R II

    Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.

    Camera Specifications
    Camera Model Olympus E-P3 Sony A7R II
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Micro Four Thirds lenses Sony E mount lenses
    Launch Date June 2011 June 2015
    Launch Price USD 799 USD 3,199
    Sensor Specs Olympus E-P3 Sony A7R II
    Sensor Technology CMOS BSI-CMOS
    Sensor Format Four Thirds Sensor Full Frame Sensor
    Sensor Size 17.3 x 13.0 mm 35.9 x 24.0 mm
    Sensor Area 224.9 mm2 861.6 mm2
    Sensor Diagonal 21.6 mm 43.2 mm
    Crop Factor 2.0x 1.0x
    Sensor Resolution 12.2 Megapixels 42.2 Megapixels
    Image Resolution 4032 x 3024 pixels 7952 x 5304 pixels
    Pixel Pitch 4.29 μm 4.52 μm
    Pixel Density 5.42 MP/cm2 4.90 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/60i Video 4K/30p Video
    ISO Setting 200 - 12,800 ISO 100 - 25,600 ISO
    ISO Boost no Enhancement 50 - 102,400 ISO
    Image Processor TruePic VI BIONZ X
    DXO Sensor Quality (score) 51 98
    DXO Color Depth (bits) 20.8 26.0
    DXO Dynamic Range (EV) 10.1 13.9
    DXO Low Light (ISO) 536 3434
    Screen Specs Olympus E-P3 Sony A7R II
    Viewfinder Type Viewfinder optional Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.78x
    Viewfinder Resolution 2400k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 614k dots 1229k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Olympus E-P3 Sony A7R II
    Focus System Contrast-detect AF On-Sensor Phase-detect
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 3 shutter flaps/s 5 shutter flaps/s
    Electronic Shutterno E-ShutterYES
    Image StabilizationIn-body stabilizationIn-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-P3 Sony A7R II
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI micro HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Body Specs Olympus E-P3 Sony A7R II
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type BLS-5 NP-FW50
    Battery Life (CIPA)330 shots per charge290 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 122 x 69 x 34 mm
    (4.8 x 2.7 x 1.3 in)
    127 x 96 x 60 mm
    (5.0 x 3.8 x 2.4 in)
    Camera Weight 369 g (13.0 oz) 625 g (22.0 oz)

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