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Olympus E-M5 II vs Sony A99 II

The Olympus OM-D E-M5 Mark II and the Sony Alpha ALT-A99 II are two digital cameras that were revealed to the public, respectively, in February 2015 and September 2016. The E-M5 II is a mirrorless interchangeable lens camera, while the A99 II is a DSLR. The cameras are based on a Four Thirds (E-M5 II) and a full frame (A99 II) sensor. The Olympus has a resolution of 15.9 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-M5 II versus Sony A99 II
Olympus E-M5 II Sony A99 II
Mirrorless system camera Digital single lens reflex
Micro Four Thirds lenses Sony A mount lenses
15.9 MP, Four Thirds Sensor 42.2 MP, Full Frame Sensor
1080/60p Video 4K/30p Video
ISO 200-25,600 ISO 100-25,600
Electronic viewfinder (2360k dots) Electronic viewfinder (2400k dots)
3.0 LCD, 1037k dots 3.0 LCD, 1229k dots
Swivel touchscreen Fully flexible screen (no touchscreen)
10 shutter flaps per second 12 shutter flaps per second
In-body stabilizationIn-body stabilization
Weathersealed bodyWeathersealed body
310 shots per battery charge490 shots per battery charge
124 x 85 x 45 mm, 469 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 OM-D E-M5 Mark II 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

An illustration of the physical size and weight of the Olympus E-M5 II and the Sony A99 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 size dimensions are rounded to the nearest millimeter.

The E-M5 II can be obtained in two different colors (black, silver), while the A99 II is only available in black.

Size Olympus E-M5 II vs Sony A99 II
Compare E-M5 II versus A99 II top
Comparison E-M5 II 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 notably larger (41 percent) than the Olympus E-M5 II. Moreover, the A99 II is substantially heavier (81 percent) than the E-M5 II. 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. 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-M5 II gets 310 shots out of its BLN-1 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. 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.

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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-M5 II 4.9 in 3.3 in 1.8 in 16.5 oz 310 Y Feb 2015 1,099i
 
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-M5 III 4.9 in 3.3 in 2.0 in 14.6 oz 310 Y Oct 2019 1,199 i
 
Olympus PEN-F 4.9 in 2.8 in 1.5 in 15.1 oz 330 n Jan 2016 1,199i
 
Olympus E-M10 II 4.7 in 3.3 in 1.9 in 13.8 oz 320 n Aug 2015 649i
 
Olympus E-M10 4.7 in 3.2 in 1.8 in 14.0 oz 320 n Jan 2014 699i
 
Olympus E-M1 5.1 in 3.7 in 2.5 in 17.5 oz 350 Y Sep 2013 1,399i
 
Olympus E-P5 4.8 in 2.7 in 1.5 in 14.8 oz 330 n May 2013 999i
 
Olympus E-M5 4.8 in 3.5 in 1.7 in 15.0 oz 360 Y Feb 2012 1,299i
 
Panasonic G85 5.0 in 3.5 in 2.9 in 17.8 oz 330 Y Sep 2016 899i
 
Panasonic GX85 4.8 in 2.8 in 1.7 in 15.0 oz 290 n Apr 2016 799 i
 
Panasonic GX8 5.2 in 3.1 in 2.5 in 17.2 oz 330 Y Jul 2015 1,199i
 
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.

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-M5 II was launched at a markedly lower price (by 66 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.

Sensor comparison

The size of the imaging sensor is a crucial determinant 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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its 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 Olympus E-M5 II 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-M5 II has a native 4:3 aspect ratio, while the one in the A99 II offers a 3:2 aspect.

Olympus E-M5 II and Sony A99 II sensor measures

With 42.2MP, the A99 II offers a higher resolution than the E-M5 II (15.9MP), but the A99 II nevertheless has larger individual pixels (pixel pitch of 4.52μm versus 3.76μm for the E-M5 II) due to its larger sensor. Moreover, the A99 II is a somewhat more recent model (by 1 year and 7 months) than the E-M5 II, and its sensor might 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-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.

The A99 II has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the A99 II, 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 Olympus OM-D E-M5 Mark II 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 ALT-A99 II are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-25600.

E-M5 II versus A99 II MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). Of the two cameras under consideration, the A99 II offers substantially better image quality than the E-M5 II (overall score 19 points higher). The advantage is based on 2.4 bits higher color depth, 0.9 EV in additional dynamic range, and 1.5 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-M5 II Four Thirds 15.9 4608 34561080/60p23.012.584273
 
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-M5 III Four Thirds 20.2 5184 38884k/24p........
 
Olympus PEN-F Four Thirds 20.2 5184 38881080/60p23.112.489474
 
Olympus E-M10 II Four Thirds 15.9 4608 34561080/60p23.112.584273
 
Olympus E-M10 Four Thirds 15.9 4608 34561080/30p22.812.388472
 
Olympus E-M1 Four Thirds 15.9 4608 34561080/30p23.012.775773
 
Olympus E-P5 Four Thirds 15.9 4608 34561080/30p22.812.489572
 
Olympus E-M5 Four Thirds 15.9 4608 34561080/60i22.812.382671
 
Panasonic G85 Four Thirds 15.8 4592 34484K/30p22.812.565671
 
Panasonic GX85 Four Thirds 15.8 4592 34484K/30p22.912.666271
 
Panasonic GX8 Four Thirds 20.2 5184 38884K/30p23.512.680675
 
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 are equipped with sensors that have a sufficiently high read-out speed for moving images, but the A99 II provides a better video resolution than the E-M5 II. It can shoot movie footage at 4K/30p, while the Olympus is limited to 1080/60p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The two cameras under review are similar with respect to both having an electronic viewfinder. However, the one in the A99 II offers a slightly higher resolution than the one in the E-M5 II (2400k vs 2360k dots). The table below summarizes some of the other core capabilities of the Olympus E-M5 II 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-M5 II2360 n 3.0 1037 swivel Y 1/8000s 10.0 n 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-M5 III2360 n 3.0 1040 swivel Y 1/8000s 10.0 n Y
 
Olympus PEN-F2360 n 3.0 1037 swivel Y 1/8000s 10.0 n Y
 
Olympus E-M10 II2360 n 3.0 1040 tilting Y 1/4000s 8.0 Y Y
 
Olympus E-M101440 n 3.0 1037 tilting Y 1/4000s 8.0 Y Y
 
Olympus E-M12360 n 3.0 1037 tilting Y 1/8000s 10.0 n Y
 
Olympus E-P5optional n 3.0 1037 tilting Y 1/8000s 9.0 Y Y
 
Olympus E-M51440 n 3.0 610 tilting Y 1/4000s 9.0 n Y
 
Panasonic G852360 n 3.0 1040 swivel Y 1/4000s 9.0 Y Y
 
Panasonic GX852765 n 3.0 1040 tilting Y 1/4000s 8.0 Y Y
 
Panasonic GX82360 n 3.0 1040 swivel Y 1/8000s 10.0 n Y
 
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 differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The E-M5 II has a touchscreen, while the A99 II has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.

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 E-M5 II 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-M5 II only has one slot. The E-M5 II supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the A99 II can use UHS-I cards (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 OM-D E-M5 Mark II 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-M5 IIYstereomonoY-micro2.0Y--
 
Sony A99 IIYstereomonoYYmicro2.0YYY
 
Canon 5DS RYmonomonoY-mini3.0---
 
Nikon D850YstereomonoYYmini3.0YYY
 
Olympus E-M5 IIIYstereomonoY-micro2.0Y-Y
 
Olympus PEN-FYstereomono--micro2.0Y--
 
Olympus E-M10 IIYstereomono--micro2.0Y--
 
Olympus E-M10Ystereomono--micro2.0Y--
 
Olympus E-M1YstereomonoY-micro2.0Y--
 
Olympus E-P5Ystereomono--micro2.0Y--
 
Olympus E-M5Ystereomono--mini2.0---
 
Panasonic G85YstereomonoY-micro2.0Y--
 
Panasonic GX85Ystereomono--micro2.0Y--
 
Panasonic GX8YstereomonoY-micro2.0YY-
 
Sony A7R IIYstereomonoYYmicro2.0YY-
 
Sony A7S IIYstereomonoYYmicro2.0YY-
 
Sony A99YstereomonoYYmini2.0---

It is notable that the A99 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-M5 II lacks such a headphone port.

Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.

The A99 II is a recent model that features in the current product line-up of Sony. In contrast, the E-M5 II has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the E-M5 II was succeeded by the Olympus E-M5 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.

Review summary

So what is the bottom line? Is there a clear favorite between the Olympus E-M5 II and the Sony A99 II? Which camera is better? The listing below highlights the relative strengths of the two models.

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Advantages 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.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • 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 143x104mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 380g or 45 percent) and hence easier to carry around.
  • More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
  • 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 (66 percent cheaper at launch).
  • More heavily discounted: Has been on the market for longer (launched in February 2015).

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Reasons to prefer the Sony Alpha ALT-A99 II:

  • More detail: Has more megapixels (42.2 vs 15.9MP), which boosts linear resolution by 66%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (19 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (2.4 bits more color depth).
  • 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 (1.5 stops ISO advantage).
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.74x).
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • More detailed LCD: Has a higher resolution rear screen (1229k vs 1037k dots).
  • Faster burst: Shoots at higher frequency (12 vs 10 flaps/sec) to capture the decisive moment.
  • Longer lasting: Gets more shots (490 versus 310) out of a single battery charge.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More modern: Was introduced somewhat (1 year and 7 months) more recently.

If the count of individual advantages (bullet points above) is taken as a guide, the A99 II is the clear winner of the contest (18 : 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 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-M5 II 11:18 A99 II

How about other alternatives? Do the specifications of the Olympus E-M5 II 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 comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains incomplete and does no justice, for example, to the way the E-M5 II or the A99 II perform in practice. 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 where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular 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.

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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-M5 II+ +81/1005/54.5/55/5 Feb 2015 1,099i
 
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-M5 III+82/1004.5/55/54.5/5 Oct 2019 1,199 i
 
Olympus PEN-F..82/1004.5/54.5/55/5 Jan 2016 1,199i
 
Olympus E-M10 II+ +80/1005/55/55/5 Aug 2015 649i
 
Olympus E-M10..80/1005/54.5/55/5 Jan 2014 699i
 
Olympus E-M1+ +84/1004.5/54.5/54.5/5 Sep 2013 1,399i
 
Olympus E-P5+ +78/1004.5/54.5/55/5 May 2013 999i
 
Olympus E-M5+ +80/1004.5/55/55/5 Feb 2012 1,299i
 
Panasonic G85+ +84/1005/54.5/54.5/5 Sep 2016 899i
 
Panasonic GX85+ +82/1005/54.5/55/5 Apr 2016 799 i
 
Panasonic GX8+82/1004.5/55/54.5/5 Jul 2015 1,199i
 
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.

Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, 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-M5 II:
Check Ebay offers
Sony A99 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. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Olympus E-M5 II 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-M5 II Sony A99 II
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Micro Four Thirds lenses Sony A mount lenses
    Launch Date February 2015 September 2016
    Launch Price USD 1,099 USD 3,199
    Sensor Specs Olympus E-M5 II 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 15.9 Megapixels 42.2 Megapixels
    Image Resolution 4608 x 3456 pixels 7952 x 5304 pixels
    Pixel Pitch 3.76 μm 4.52 μm
    Pixel Density 7.08 MP/cm2 4.90 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/60p Video 4K/30p Video
    ISO Setting 200 - 25,600 ISO 100 - 25,600 ISO
    ISO Boost 100 - 25,600 ISO 50 - 25,600 ISO
    Image Processor TruePic VII BIONZ X
    DXO Sensor Quality (score) 73 92
    DXO Color Depth (bits) 23.0 25.4
    DXO Dynamic Range (EV) 12.5 13.4
    DXO Low Light (ISO) 842 2317
    Screen Specs Olympus E-M5 II Sony A99 II
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.74x 0.78x
    Viewfinder Resolution 2360k dots 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 1037k dots 1229k dots
    LCD Attachment Swivel screen Fully flexible screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Olympus E-M5 II Sony A99 II
    Focus System Contrast-detect AF Phase-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/8000s
    Continuous Shooting 10 shutter flaps/s 12 shutter flaps/s
    Electronic Shutterup to 1/16000sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash no On-Board 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-II UHS-I
    Connectivity Specs Olympus E-M5 II Sony A99 II
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket 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 no Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Olympus E-M5 II Sony A99 II
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type BLN-1 NP-FM500H
    Battery Life (CIPA)310 shots per charge490 shots per charge
    Body Dimensions 124 x 85 x 45 mm
    (4.9 x 3.3 x 1.8 in)
    143 x 104 x 76 mm
    (5.6 x 4.1 x 3.0 in)
    Camera Weight 469 g (16.5 oz) 849 g (29.9 oz)

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    You are here Home  »  CAM-parator  »  Olympus E-M5 II vs Sony A99 II

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