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Olympus E-P3 vs Sony A99 II

The Olympus PEN E-P3 and the Sony Alpha ALT-A99 II are two digital cameras that were announced, respectively, in June 2011 and September 2016. The E-P3 is a mirrorless interchangeable lens camera, while the A99 II is a DSLR. The cameras are based on a Four Thirds (E-P3) and a full frame (A99 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 A99 II
Olympus E-P3 Sony A99 II
Mirrorless system camera Digital single lens reflex
Micro Four Thirds lenses Sony A 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
Viewfinder optional Electronic viewfinder (2400k dots)
3.0 LCD, 614k dots 3.0 LCD, 1229k dots
Fixed touchscreen Fully flexible screen (no touchscreen)
3 shutter flaps per second 12 shutter flaps per second
In-body stabilizationIn-body stabilization
not weather sealedWeathersealed body
330 shots per battery charge490 shots per battery charge
122 x 69 x 34 mm, 369 g 143 x 104 x 76 mm, 849 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus PEN E-P3 and the Sony Alpha ALT-A99 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 A99 II. 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 measures are rounded to the nearest millimeter.

The E-P3 can be obtained in three different colors (black, silver, white), while the A99 II is only available in black.

Size Olympus E-P3 vs Sony A99 II
Compare E-P3 versus A99 II top
Comparison E-P3 or A99 II rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A99 II is considerably larger (77 percent) than the Olympus E-P3. Moreover, the A99 II is substantially heavier (130 percent) than the E-P3. It is noteworthy in this context that the A99 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. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the E-P3 gets 330 shots out of its BLS-5 battery, while the A99 II can take 490 images on a single charge of its NP-FM500H power pack.

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, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.

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Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life 1
Weather
Sealing
Camera
Launch 2
Launch
Price (USD)
Street
Price
 
Olympus E-P3 4.8 in 2.7 in 1.3 in 13.0 oz 330 n Jun 2011 799i
 
Sony A99 II 5.6 in 4.1 in 3.0 in 29.9 oz 490 Y Sep 2016 3,199 i
 
Canon 5DS R 6.0 in 4.6 in 3.0 in 32.8 oz 700 Y Feb 2015 3,699 i
 
Nikon D850 5.7 in 4.9 in 3.1 in 35.5 oz 1840 Y Jul 2017 3,299 i
 
Olympus E-P5 4.8 in 2.7 in 1.5 in 14.8 oz 330 n May 2013 999i
 
Olympus E-PL5 4.4 in 2.5 in 1.5 in 11.5 oz 360 n Sep 2012 599i
 
Olympus E-PL2 4.5 in 2.8 in 1.7 in 12.8 oz 280 n Jan 2011 599i
 
Olympus E-PL3 4.3 in 2.5 in 1.5 in 11.0 oz 300 n Jun 2011 599i
 
Olympus E-PM1 4.3 in 2.5 in 1.3 in 9.3 oz 330 n Jun 2011 499i
 
Olympus E-PL1 4.5 in 2.8 in 1.7 in 11.8 oz 290 n Feb 2010 599i
 
Olympus E-P1 4.8 in 2.8 in 1.4 in 12.5 oz 300 n Jun 2009 799i
 
Olympus E-P2 4.8 in 2.8 in 1.4 in 12.5 oz 300 n Nov 2009 799i
 
Panasonic GX1 4.6 in 2.7 in 1.5 in 11.2 oz 320 n Nov 2011 699i
 
Panasonic G10 4.9 in 3.3 in 2.9 in 13.7 oz 380 n Mar 2010 499i
 
Sony A7R II 5.0 in 3.8 in 2.4 in 22.0 oz 290 Y Jun 2015 3,199i
 
Sony A7S II 5.0 in 3.8 in 2.4 in 22.1 oz 370 Y Sep 2015 2,999i
 
Sony A99 5.8 in 4.4 in 3.1 in 28.6 oz 500 Y Sep 2012 2,799i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.

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-P3 was launched at a markedly lower price (by 75 percent) than the A99 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.

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Sensor comparison

The size of the imaging sensor is a crucial determinant 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Olympus E-P3 features a Four Thirds sensor and the Sony A99 II a full frame sensor. The sensor area in the A99 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 A99 II offers a 3:2 aspect.

Olympus E-P3 and Sony A99 II sensor measures

With 42.2MP, the A99 II offers a higher resolution than the E-P3 (12.2MP), but the A99 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 A99 II is a much more recent model (by 5 years and 2 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 A99 II has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A99 II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A99 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 A99 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 ALT-A99 II are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-25600.

E-P3 versus A99 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 A99 II offers substantially better image quality than the E-P3 (overall score 41 points higher). The advantage is based on 4.6 bits higher color depth, 3.3 EV in additional dynamic range, and 2.1 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
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
 
Olympus E-P3 Four Thirds 12.2 4032 30241080/60i20.810.153651
 
Sony A99 II Full Frame 42.2 7952 53044K/30p25.413.4231792
 
Canon 5DS R Full Frame 50.3 8688 57921080/30p24.612.4230886
 
Nikon D850 Full Frame 45.4 8256 55044K/30p26.414.82660100
 
Olympus E-P5 Four Thirds 15.9 4608 34561080/30p22.812.489572
 
Olympus E-PL5 Four Thirds 15.9 4608 34561080/30p22.812.388972
 
Olympus E-PL2 Four Thirds 12.2 4032 3024720/30p21.410.257355
 
Olympus E-PL3 Four Thirds 12.2 4032 30241080/60i20.910.349952
 
Olympus E-PM1 Four Thirds 12.2 4032 30241080/60i21.010.349952
 
Olympus E-PL1 Four Thirds 12.2 4032 3024720/30p21.510.148754
 
Olympus E-P1 Four Thirds 12.2 4032 3024720/30p21.410.453655
 
Olympus E-P2 Four Thirds 12.2 4032 3024720/30p21.510.450556
 
Panasonic GX1 Four Thirds 15.8 4592 34481080/60p20.810.670355
 
Panasonic G10 Four Thirds 12.0 4000 3000720/30p21.210.141152
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
 
Sony A99 Full Frame 24.0 6000 40001080/60p25.014.0155589

Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the A99 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 A99 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 A99 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
 
Olympus E-P3optional n 3.0 614 fixed Y 1/4000s 3.0 Y Y
 
Sony A99 II2400 Y 3.0 1229 full-flex n 1/8000s 12.0 n Y
 
Canon 5DS Roptical Y 3.2 1040 fixed n 1/8000s 5.0 n n
 
Nikon D850optical Y 3.2 2359 tilting Y 1/8000s 9.0 n n
 
Olympus E-P5optional n 3.0 1037 tilting Y 1/8000s 9.0 Y Y
 
Olympus E-PL5optional n 3.0 460 tilting Y 1/4000s 8.0 n Y
 
Olympus E-PL2optional n 3.0 460 fixed n 1/4000s 3.0 Y Y
 
Olympus E-PL3optional n 3.0 460 tilting n 1/4000s 5.5 n Y
 
Olympus E-PM1optional n 3.0 460 fixed n 1/4000s 5.5 n Y
 
Olympus E-PL1optional n 2.7 230 fixed n 1/2000s 3.0 Y Y
 
Olympus E-P1none n 3.0 230 fixed n 1/4000s 3.0 n Y
 
Olympus E-P2optional n 3.0 230 fixed n 1/4000s 3.0 n Y
 
Panasonic GX1optional n 3.0 460 fixed Y 1/4000s 4.2 Y n
 
Panasonic G10202 n 3.0 460 fixed n 1/4000s 2.6 Y n
 
Sony A7R II2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y
 
Sony A7S II2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y
 
Sony A992359 Y 3.0 1229 full-flex n 1/8000s 6.0 n Y

One difference between the cameras concerns the presence of an on-board flash. The E-P3 has one, while the A99 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 A99 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 E-P3 does not have a selfie-screen.

The E-P3 writes its imaging data to SDXC cards, while the A99 II uses SDXC or Memory Stick PRO Duo cards. The A99 II features dual card slots, which can be very useful in case a memory card fails. In contrast, the E-P3 only has one slot. 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 ALT-A99 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
 
Olympus E-P3Ystereo---mini2.0---
 
Sony A99 IIYstereomonoYYmicro2.0YYY
 
Canon 5DS RYmonomonoY-mini3.0---
 
Nikon D850YstereomonoYYmini3.0YYY
 
Olympus E-P5Ystereomono--micro2.0Y--
 
Olympus E-PL5Ystereomono--mini2.0---
 
Olympus E-PL2Ystereo---mini2.0---
 
Olympus E-PL3Ystereo---mini2.0---
 
Olympus E-PM1Ystereomono--mini2.0---
 
Olympus E-PL1Ystereo---mini2.0---
 
Olympus E-P1Ystereo---mini2.0---
 
Olympus E-P2Ystereo---mini2.0---
 
Panasonic GX1Ystereomono--mini2.0---
 
Panasonic G10Ymono---mini2.0---
 
Sony A7R IIYstereomonoYYmicro2.0YY-
 
Sony A7S IIYstereomonoYYmicro2.0YY-
 
Sony A99YstereomonoYYmini2.0---

It is notable that the A99 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.

Studio photographers will appreciate that the Sony A99 II (unlike the E-P3) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The A99 II is a recent model that features in the current product line-up of Sony. In contrast, the E-P3 has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the E-P3 was succeeded by the Olympus E-P5. 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? Is there a clear favorite between the Olympus E-P3 and the Sony A99 II? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

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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 143x104mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 480g or 57 percent) and hence easier to carry around.
  • More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
  • 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 ALT-A99 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 (41 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (4.6 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (3.3 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (2.1 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.
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • More detailed LCD: Has a higher resolution rear screen (1229k vs 614k dots).
  • More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (12 vs 3 flaps/sec) to capture the decisive moment.
  • Longer lasting: Gets more shots (490 versus 330) out of a single battery charge.
  • 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.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More modern: Reflects 5 years and 2 months of technical progress since the E-P3 launch.

If the count of relative strengths (bullet points above) is taken as a measure, the A99 II is the clear winner of the contest (25 : 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.

E-P3 08:25 A99 II

How about other alternatives? Do the specifications of the Olympus E-P3 and the Sony A99 II place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR Camera listings 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 incomplete and does no justice, for example, to the way the E-P3 or the A99 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 hands-on reviews by experts are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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.

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Review Scores
  Camera
Model
camera
  labs  
dp
review  
ephoto
  zine  
imaging
resource
photography
  blog  
Camera
Launch
Launch
Price (USD)
Street
Price
 
Olympus E-P383/10074/1004.5/54.5/54.5/5 Jun 2011 799i
 
Sony A99 II..85/1004.5/54.5/54.5/5 Sep 2016 3,199 i
 
Canon 5DS R+83/1005/55/54.5/5 Feb 2015 3,699 i
 
Nikon D850+ +89/1004.5/55/55/5 Jul 2017 3,299 i
 
Olympus E-P5+ +78/1004.5/54.5/55/5 May 2013 999i
 
Olympus E-PL5+ +..4.5/54.5/54.5/5 Sep 2012 599i
 
Olympus E-PL283/10071/1004.5/54.5/54.5/5 Jan 2011 599i
 
Olympus E-PL3+ +72/1004.5/5..4/5 Jun 2011 599i
 
Olympus E-PM186/10071/1004.5/5..4.5/5 Jun 2011 499i
 
Olympus E-PL186/10069/1004/54.5/54.5/5 Feb 2010 599i
 
Olympus E-P1+66/1004/54/54.5/5 Jun 2009 799i
 
Olympus E-P2+69/1004/54.5/54.5/5 Nov 2009 799i
 
Panasonic GX1+77/1004.5/54.5/54.5/5 Nov 2011 699i
 
Panasonic G10..70/1004/5..4/5 Mar 2010 499i
 
Sony A7R II+ +90/1005/54.5/55/5 Jun 2015 3,199i
 
Sony A7S II+..4.5/55/55/5 Sep 2015 2,999i
 
Sony A99..84/1004.5/5o4.5/5 Sep 2012 2,799i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. 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 A99 II:
Check Amazon price

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. 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: Olympus E-P3 vs Sony A99 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 A99 II
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Micro Four Thirds lenses Sony A mount lenses
    Launch Date June 2011 September 2016
    Launch Price USD 799 USD 3,199
    Sensor Specs Olympus E-P3 Sony A99 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 - 25,600 ISO
    Image Processor TruePic VI BIONZ X
    DXO Sensor Quality (score) 51 92
    DXO Color Depth (bits) 20.8 25.4
    DXO Dynamic Range (EV) 10.1 13.4
    DXO Low Light (ISO) 536 2317
    Screen Specs Olympus E-P3 Sony A99 II
    Viewfinder Type Viewfinder optional Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.78x
    Viewfinder Resolution 2400k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 614k dots 1229k dots
    LCD Attachment Fixed screen Fully flexible screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Olympus E-P3 Sony A99 II
    Focus System Contrast-detect AF Phase-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 3 shutter flaps/s 12 shutter flaps/s
    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 Dual card slots
    UHS card support UHS-I UHS-I
    Connectivity Specs Olympus E-P3 Sony A99 II
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    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
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Olympus E-P3 Sony A99 II
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type BLS-5 NP-FM500H
    Battery Life (CIPA)330 shots per charge490 shots per charge
    Body Dimensions 122 x 69 x 34 mm
    (4.8 x 2.7 x 1.3 in)
    143 x 104 x 76 mm
    (5.6 x 4.1 x 3.0 in)
    Camera Weight 369 g (13.0 oz) 849 g (29.9 oz)

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