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Olympus E-P5 vs Sony A7S II

The Olympus PEN E-P5 and the Sony Alpha 7S II are two digital cameras that were officially introduced, respectively, in May 2013 and September 2015. Both the E-P5 and the A7S II are mirrorless interchangeable lens cameras that are based on a Four Thirds (E-P5) and a full frame (A7S II) sensor. The Olympus has a resolution of 15.9 megapixels, whereas the Sony provides 12 MP.

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

Headline Specifications
Olympus E-P5 VS Sony A7S II
Olympus E-P5 Sony A7S II
Mirrorless system camera Mirrorless system camera
Micro Four Thirds lenses Sony E mount lenses
15.9 MP, Four Thirds Sensor 12 MP, Full Frame Sensor
1080/30p Video 4K/30p Video
ISO 200-25600 ISO 100-102400 (50-409600)
Viewfinder optional Electronic viewfinder (2400k dots)
3.0" LCD, 1037k dots 3.0" LCD, 1229k dots
Tilting touchscreen Tilting screen (not touch-sensitive)
9 shutter flaps per second 5 shutter flaps per second
In-body stabilizationIn-body stabilization
Not weather sealedWeathersealed body
330 shots per battery charge370 shots per battery charge
122 x 69 x 37 mm, 420 g 127 x 96 x 60 mm, 627 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus PEN E-P5 and the Sony Alpha 7S II? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

Body comparison

An illustration of the physical size and weight of the Olympus E-P5 and the Sony A7S 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-P5 can be obtained in three different colors (black, silver, white), while the A7S II is only available in black.

Size Olympus E-P5 vs Sony A7S II
Compare E-P5 versus A7S II top
Comparison E-P5 or A7S II rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7S II is considerably larger (45 percent) than the Olympus E-P5. Moreover, the A7S II is substantially heavier (49 percent) than the E-P5. It is noteworthy in this context that the A7S II is splash and dust-proof, while the E-P5 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-P5) and the Sony FE Lens Catalog (A7S II). Mirrorless cameras, such as the two under consideration, have the additional advantage of having a short flange to focal plane distance, which makes it possible to mount many lenses from other systems onto the camera via adapters.

Concerning battery life, the E-P5 gets 330 shots out of its BLN-1 battery, while the A7S II can take 370 images on a single charge of its NP-FW50 power pack. The power pack in the A7S II can be charged via the USB port, which can be very convenient when travelling.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Camera
Model
 
Olympus E-P5» 4.8 in 2.7 in 1.5 in 14.8 oz 330 n May 2013 999iOlympus E-P5
 
Sony A7S II« 5.0 in 3.8 in 2.4 in 22.1 oz 370 Y Sep 2015 2,999 iSony A7S II
 
Olympus PEN-F« » 4.9 in 2.8 in 1.5 in 15.1 oz 330 n Jan 2016 1,199 iOlympus PEN-F
 
Olympus E-M10 II« » 4.7 in 3.3 in 1.9 in 13.8 oz 320 n Aug 2015 649iOlympus E-M10 II
 
Olympus E-M10« » 4.7 in 3.2 in 1.8 in 14.0 oz 320 n Jan 2014 699iOlympus E-M10
 
Olympus E-PL7« » 4.5 in 2.6 in 1.5 in 12.6 oz 350 n Aug 2014 599iOlympus E-PL7
 
Olympus E-M1« » 5.1 in 3.7 in 2.5 in 17.5 oz 350 Y Sep 2013 1,399iOlympus E-M1
 
Olympus E-M5« » 4.8 in 3.5 in 1.7 in 15.0 oz 360 Y Feb 2012 1,299iOlympus E-M5
 
Olympus E-PL5« » 4.4 in 2.5 in 1.5 in 11.5 oz 360 n Sep 2012 599iOlympus E-PL5
 
Olympus E-PM2« » 4.3 in 2.5 in 1.3 in 9.5 oz 360 n Sep 2012 499iOlympus E-PM2
 
Olympus E-P3« » 4.8 in 2.7 in 1.3 in 13.0 oz 330 n Jun 2011 799iOlympus E-P3
 
Panasonic GX7« » 4.8 in 2.8 in 2.2 in 14.2 oz 350 n Aug 2013 999iPanasonic GX7
 
Sony A7 III« » 5.0 in 3.8 in 2.9 in 22.9 oz 610 Y Feb 2018 1,999 iSony A7 III
 
Sony A7R III« » 5.0 in 3.8 in 2.9 in 22.9 oz 650 Y Oct 2017 3,199iSony A7R III
 
Sony A7R II« » 5.0 in 3.8 in 2.4 in 22.0 oz 290 Y Jun 2015 3,199iSony A7R II
 
Sony A7 II« » 5.0 in 3.8 in 2.4 in 21.1 oz 350 Y Nov 2014 1,999iSony A7 II
 
Sony A7S« » 5.0 in 3.7 in 1.9 in 17.2 oz 380 Y Apr 2014 2,499iSony A7S
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

Any camera decision will obviously take relative prices into account. 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-P5 was launched at a markedly lower price (by 67 percent) than the A7S 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. 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. 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-P5 features a Four Thirds sensor and the Sony A7S II a full frame sensor. The sensor area in the A7S II is 276 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 1.0. The sensor in the E-P5 has a native 4:3 aspect ratio, while the one in the A7S II offers a 3:2 aspect.

Olympus E-P5 and Sony A7S II sensor measures

Despite having a smaller sensor, the Olympus E-P5 offers a higher resolution of 15.9 megapixels, compared with 12 MP of the Sony A7S II. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.76μm versus 8.40μm for the A7S II). Moreover, it should be noted that the A7S II is much more recent (by 2 years and 4 months) than the E-P5, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units.

The resolution advantage of the Olympus E-P5 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the E-P5 for good quality output (200 dots per inch) amounts to 23 x 17.3 inch or 58.5 x 43.9 cm, for very good quality (250 dpi) 18.4 x 13.8 inch or 46.8 x 35.1 cm, and for excellent quality (300 dpi) 15.4 x 11.5 inch or 39 x 29.3 cm. The corresponding values for the Sony A7S II are 21.2 x 14.2 inch or 53.8 x 36 cm for good quality, 17 x 11.3 inch or 43.1 x 28.8 cm for very good quality, and 14.1 x 9.4 inch or 35.9 x 24 cm for excellent quality prints.

The Olympus PEN E-P5 has a native sensitivity range from ISO 200 to ISO 25600, which can be extended to ISO 100-25600. The corresponding ISO settings for the Sony Alpha 7S II are ISO 100 to ISO 102400, with the possibility to increase the ISO range to 50-409600.

E-P5 versus A7S II MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 A7S II offers substantially better image quality than the E-P5 (overall score 13 points higher). The advantage is based on 0.8 bits higher color depth, 0.9 EV in additional dynamic range, and 1.7 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.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
 
Olympus E-P5 Four Thirds 15.9 4608 34561080/30p22.812.489572Olympus E-P5
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385Sony A7S II
 
Olympus PEN-F Four Thirds 20.2 5184 38881080/60p23.112.489474Olympus PEN-F
 
Olympus E-M10 II Four Thirds 15.9 4608 34561080/60p23.112.584273Olympus E-M10 II
 
Olympus E-M10 Four Thirds 15.9 4608 34561080/30p22.812.388472Olympus E-M10
 
Olympus E-PL7 Four Thirds 15.9 4608 34561080/30p22.712.487372Olympus E-PL7
 
Olympus E-M1 Four Thirds 15.9 4608 34561080/30p23.012.775773Olympus E-M1
 
Olympus E-M5 Four Thirds 15.9 4608 34561080/60i22.812.382671Olympus E-M5
 
Olympus E-PL5 Four Thirds 15.9 4608 34561080/30p22.812.388972Olympus E-PL5
 
Olympus E-PM2 Four Thirds 15.9 4608 34561080/30p22.712.293272Olympus E-PM2
 
Olympus E-P3 Four Thirds 12.2 4032 30241080/60i20.810.153651Olympus E-P3
 
Panasonic GX7 Four Thirds 15.8 4592 34481080/60p22.612.271870Panasonic GX7
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096Sony A7 III
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100Sony A7R III
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498Sony A7R II
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990Sony A7 II
 
Sony A7S Full Frame 12.0 4240 28321080/60p23.913.2370287Sony A7S

Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the A7S II provides a better video resolution than the E-P5. It can shoot movie footage at 4K/30p, while the Olympus is limited to 1080/30p.

 

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the A7S II has an electronic viewfinder (2400k dots), which can be very helpful when shooting in bright sunlight. In contrast, the E-P5 relies on live view and the rear LCD for framing. That said, the E-P5 can be equipped with an optional viewfinder – the VF-4. The adjacent table lists some of the other core features of the Olympus E-P5 and Sony A7S II along with similar information for a selection of comparators.

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
Camera
Model
 
Olympus E-P5optional n 3.0 1037 tilting Y 1/8000s 9.0 Y Y Olympus E-P5
 
Sony A7S II2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y Sony A7S II
 
Olympus PEN-F2360 n 3.0 1037 swivel Y 1/8000s 10.0 n Y Olympus PEN-F
 
Olympus E-M10 II2360 n 3.0 1040 tilting Y 1/4000s 8.0 Y Y Olympus E-M10 II
 
Olympus E-M101440 n 3.0 1037 tilting Y 1/4000s 8.0 Y Y Olympus E-M10
 
Olympus E-PL7optional n 3.0 1037 tilting Y 1/4000s 8.0 n Y Olympus E-PL7
 
Olympus E-M12360 n 3.0 1037 tilting Y 1/8000s 10.0 n Y Olympus E-M1
 
Olympus E-M51440 n 3.0 610 tilting Y 1/4000s 9.0 n Y Olympus E-M5
 
Olympus E-PL5optional n 3.0 460 tilting Y 1/4000s 8.0 n Y Olympus E-PL5
 
Olympus E-PM2optional n 3.0 460 fixed Y 1/4000s 8.0 n Y Olympus E-PM2
 
Olympus E-P3optional n 3.0 614 fixed Y 1/4000s 3.0 Y Y Olympus E-P3
 
Panasonic GX72760 n 3.0 1040 tilting Y 1/8000s 5.0 Y Y Panasonic GX7
 
Sony A7 III2359 n 3.0 922 tilting Y 1/8000s 10.0 n Y Sony A7 III
 
Sony A7R III3686 n 3.0 1440 tilting Y 1/8000s 10.0 n Y Sony A7R III
 
Sony A7R II2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y Sony A7R II
 
Sony A7 II2400 n 3.0 1230 tilting n 1/8000s 5.0 n Y Sony A7 II
 
Sony A7S2400 n 3.0 921 tilting n 1/8000s 5.0 n n Sony A7S

One difference between the cameras concerns the presence of an on-board flash. The E-P5 has one, while the A7S II does not. While the built-in flash of the E-P5 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 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-P5 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-P5 writes its imaging data to SDXC cards, while the A7S II uses SDXC or Memory Stick PRO Duo cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

 

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-P5 and Sony Alpha 7S II and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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
Camera
Model
 
Olympus E-P5Ystereomono--micro2.0Y--Olympus E-P5
 
Sony A7S IIYstereomonoYYmicro2.0YY-Sony A7S II
 
Olympus PEN-FYstereomono--micro2.0Y--Olympus PEN-F
 
Olympus E-M10 IIYstereomono--micro2.0Y--Olympus E-M10 II
 
Olympus E-M10Ystereomono--micro2.0Y--Olympus E-M10
 
Olympus E-PL7Ystereomono--micro2.0Y--Olympus E-PL7
 
Olympus E-M1YstereomonoY-micro2.0Y--Olympus E-M1
 
Olympus E-M5Ystereomono--mini2.0---Olympus E-M5
 
Olympus E-PL5Ystereomono--mini2.0---Olympus E-PL5
 
Olympus E-PM2Ystereomono--mini2.0---Olympus E-PM2
 
Olympus E-P3Ystereonone--mini2.0---Olympus E-P3
 
Panasonic GX7Ystereomono--mini2.0YY-Panasonic GX7
 
Sony A7 IIIYstereomonoYYmicro3.1YYYSony A7 III
 
Sony A7R IIIYstereomonoYYmicro3.1YYYSony A7R III
 
Sony A7R IIYstereomonoYYmicro2.0YY-Sony A7R II
 
Sony A7 IIYstereomonoYYmicro2.0YY-Sony A7 II
 
Sony A7SYstereomonoYYmicro2.0YY-Sony A7S

It is notable that the A7S II has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The E-P5 lacks such a headphone port.

The A7S II is a recent model that features in the current product line-up of Sony. In contrast, the E-P5 has been discontinued (but it can be found pre-owned on eBay). There has not been a direct replacement model for the E-P5 from Olympus. 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.

Review summary

So what conclusions can be drawn? Is the Olympus E-P5 better than the Sony A7S II or vice versa? The listing below highlights the relative strengths of the two models.

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Arguments in favor of the Olympus PEN E-P5:

  • More detail: Offers more megapixels (15.9 vs 12MP) with a 13% higher linear resolution.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Faster burst: Shoots at higher frequency (9 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 (122x69mm vs 127x96mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 207g or 33 percent) and hence easier to carry around.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced into a lower priced category (67 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in May 2013).

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Advantages of the Sony Alpha 7S II:

  • Better image quality: Scores substantially higher (13 points) in the DXO overall evaluation.
  • 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 (1.7 stops ISO advantage).
  • Better video: Provides higher definition movie capture (4K/30p vs 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.
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1229k vs 1037k dots).
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Longer lasting: Gets more shots (370 versus 330) 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.
  • More modern: Reflects 2 years and 4 months of technical progress since the E-P5 launch.

If the count of relative strengths (bullet points above) is taken as a measure, the A7S II is the clear winner of the contest (13 : 9 points). However, the 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 wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

E-P5 09:13 A7S II

How about other alternatives? Do the specifications of the Olympus E-P5 and the Sony A7S II place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera listing whether the two cameras rank among the cream of the crop.

In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the E-P5 or the A7S II. 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 expert reviews are important. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

Review Scores
  Camera
Model
cam
era
  labs  
dp
re
  view  
e
photo
  zine  
ima
ging
resource
photo
graphy
  blog  
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Camera
Model
 
Olympus E-P5+ +78/1004.5/54.5/55/5 May 2013 999iOlympus E-P5
 
Sony A7S II+..4.5/55/55/5 Sep 2015 2,999 iSony A7S II
 
Olympus PEN-F..82/1004.5/54.5/55/5 Jan 2016 1,199 iOlympus PEN-F
 
Olympus E-M10 II+ +80/1005/55/55/5 Aug 2015 649iOlympus E-M10 II
 
Olympus E-M10..80/1005/54.5/55/5 Jan 2014 699iOlympus E-M10
 
Olympus E-PL7+..5/54.5/54/5 Aug 2014 599iOlympus E-PL7
 
Olympus E-M1+ +84/1004.5/54.5/54.5/5 Sep 2013 1,399iOlympus E-M1
 
Olympus E-M5+ +80/1004.5/55/55/5 Feb 2012 1,299iOlympus E-M5
 
Olympus E-PL5+ +..4.5/54.5/54.5/5 Sep 2012 599iOlympus E-PL5
 
Olympus E-PM2..77/1005/54.5/54.5/5 Sep 2012 499iOlympus E-PM2
 
Olympus E-P383/10074/1004.5/54.5/54.5/5 Jun 2011 799iOlympus E-P3
 
Panasonic GX7+79/1005/54.5/55/5 Aug 2013 999iPanasonic GX7
 
Sony A7 III+ +89/1005/55/55/5 Feb 2018 1,999 iSony A7 III
 
Sony A7R III+ +90/1004.5/55/55/5 Oct 2017 3,199iSony A7R III
 
Sony A7R II+ +90/1005/54.5/55/5 Jun 2015 3,199iSony A7R II
 
Sony A7 II+82/1004.5/55/55/5 Nov 2014 1,999iSony A7 II
 
Sony A7S..86/1004.5/54.5/55/5 Apr 2014 2,499iSony A7S
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.

Olympus E-P5:
Check Ebay offers
Sony A7S II:
Check Amazon price

Other camera comparisons

Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications: Olympus E-P5 vs Sony A7S II

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

    Camera Specifications
    Camera Model Olympus E-P5 Sony A7S II
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Micro Four Thirds lenses Sony E mount lenses
    Launch Date May 2013 September 2015
    Launch Price USD 999 USD 2999
    Sensor Specs Olympus E-P5 Sony A7S II
    Sensor Technology CMOS CMOS
    Sensor Format Four Thirds Sensor Full Frame Sensor
    Sensor Size 17.3 x 13.0 mm 35.6 x 23.8 mm
    Sensor Area 224.9 mm2 847.28 mm2
    Sensor Diagonal 21.6 mm 42.8 mm
    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 8.40 μm
    Pixel Density 7.08 MP/cm2 1.42 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/30p Video 4K/30p Video
    ISO Setting 200-25600 ISO 100-102400 ISO
    ISO Boost 100-25600 ISO 50-409600 ISO
    Image Processor TruePic VI BIONZ X
    DXO Sensor Quality (score) 72 85
    DXO Color Depth (bits) 22.8 23.6
    DXO Dynamic Range (EV) 12.4 13.3
    DXO Low Light (ISO) 895 2993
    Screen Specs Olympus E-P5 Sony A7S 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 3.0 inch 3.0 inch
    LCD Resolution 1037k dots 1229k dots
    LCD Attachment Tilting screen Tilting screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Olympus E-P5 Sony A7S II
    Focus System Contrast-detect AF Contrast-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000/s 1/8000/s
    Continuous Shooting 9 shutter flaps/s 5 shutter flaps/s
    Electronic Shutterno E-ShutterYES
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    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-P5 Sony A7S II
    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-P5 Sony A7S II
    Environmental SealingNot weather sealedWeathersealed body
    Battery Type BLN-1 NP-FW50
    Battery Life (CIPA)330 shots per charge370 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 122 x 69 x 37 mm
    (4.8 x 2.7 x 1.5 in)
    127 x 96 x 60 mm
    (5.0 x 3.8 x 2.4 in)
    Camera Weight 420 g (14.8 oz) 627 g (22.1 oz)

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