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Sony A58 vs Olympus E-M1 II

The Sony Alpha SLT-A58 and the Olympus OM-D E-M1 Mark II are two digital cameras that were announced, respectively, in February 2013 and September 2016. The A58 is a DSLR, while the E-M1 II is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (A58) and a Four Thirds (E-M1 II) sensor. The Sony has a resolution of 19.8 megapixels, whereas the Olympus provides 20.2 MP.

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

Headline Specifications
Sony A58
versus
Olympus E-M1 II
Sony A58   Olympus E-M1 II
Digital single lens reflex Mirrorless system camera
Sony A mount lenses Micro Four Thirds lenses
19.8 MP – APS-C sensor 20.2 MP – Four Thirds sensor
1080/60i Video 4K/30p Video
ISO 100-16,000 (100 - 25,600) ISO 200-25,600
Electronic viewfinder (1440k dots) Electronic viewfinder (2360k dots)
2.7" LCD – 460k dots 3.0" LCD – 1037k dots
Tilting screen (no touchscreen) Swivel touchscreen
5 shutter flaps per second 18 shutter flaps per second
In-body stabilizationIn-body stabilization
not weather sealedWeathersealed body
690 shots per battery charge440 shots per battery charge
129 x 95 x 78 mm, 492 g 134 x 91 x 67 mm, 574 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Alpha SLT-A58 and the Olympus OM-D E-M1 Mark II? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

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Body comparison

The side-by-side display below illustrates the physical size and weight of the Sony A58 and the Olympus E-M1 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 dimensions are rounded to the nearest millimeter.

Size Sony A58 vs Olympus E-M1 II
Compare A58 versus E-M1 II top
Comparison A58 or E-M1 II rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A58 and the Olympus E-M1 II are of equal size. However, the E-M1 II is markedly heavier (17 percent) than the A58. It is noteworthy in this context that the E-M1 II is splash and dust-proof, while the A58 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 A58 gets 690 shots out of its Sony NP-FM500H battery, while the E-M1 II can take 440 images on a single charge of its Olympus BLH-1 power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Sony A58 129 mm 95 mm 78 mm 492 g 690 n Feb 2013 599ebay.com
2.
 
Olympus E-M1 II 134 mm 91 mm 67 mm 574 g 440 Y Sep 2016 1,999ebay.com
3.
 
Canon SL1 117 mm 91 mm 69 mm 407 g 380 n Mar 2013 549ebay.com
4.
 
Canon T5i 133 mm 100 mm 79 mm 580 g 440 n Mar 2013 649ebay.com
5.
 
Nikon D3300 124 mm 98 mm 76 mm 430 g 700 n Jan 2014 499ebay.com
6.
 
Nikon D3200 125 mm 96 mm 77 mm 505 g 540 n Apr 2012 599ebay.com
7.
 
Olympus E-M1 III 134 mm 91 mm 69 mm 580 g 420 Y Feb 2020 1,799ebay.com
8.
 
Olympus PEN-F 125 mm 72 mm 37 mm 427 g 330 n Jan 2016 1,199ebay.com
9.
 
Olympus E-M1 130 mm 94 mm 63 mm 497 g 350 Y Sep 2013 1,399ebay.com
10.
 
Panasonic GH5 139 mm 98 mm 87 mm 725 g 410 Y Jan 2017 1,999ebay.com
11.
 
Panasonic G85 128 mm 89 mm 74 mm 505 g 330 Y Sep 2016 899ebay.com
12.
 
Pentax K-S1 121 mm 93 mm 70 mm 558 g 410 n Aug 2014 749ebay.com
13.
 
Sony A68 143 mm 104 mm 81 mm 610 g 540 n Nov 2015 699ebay.com
14.
 
Sony A77 II 143 mm 104 mm 81 mm 647 g 480 Y May 2014 1,199ebay.com
15.
 
Sony A5100 110 mm 63 mm 36 mm 283 g 400 n Aug 2014 549ebay.com
16.
 
Sony A6000 120 mm 67 mm 45 mm 344 g 360 n Feb 2014 599ebay.com
17.
 
Sony A3000 128 mm 91 mm 85 mm 411 g 470 n Aug 2013 329ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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The price is, of course, an important factor in any camera decision. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The A58 was launched at a markedly lower price (by 70 percent) than the E-M1 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 generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Sony A58 features an APS-C sensor and the Olympus E-M1 II a Four Thirds sensor. The sensor area in the E-M1 II is 39 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 2.0. The sensor in the A58 has a native 3:2 aspect ratio, while the one in the E-M1 II offers a 4:3 aspect.

Sony A58 and Olympus E-M1 II sensor measures

Despite having a smaller sensor, the E-M1 II offers a slightly higher resolution of 20.2 megapixels, compared with 19.8 MP of the A58. 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 3.34μm versus 4.31μm for the A58). However, it should be noted that the E-M1 II is much more recent (by 3 years and 6 months) than the A58, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. Coming back to sensor resolution, it should be mentioned that the E-M1 II has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The E-M1 II has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the A58, the E-M1 II has the capacity to capture high quality composite images (50MP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

The Sony Alpha SLT-A58 has a native sensitivity range from ISO 100 to ISO 16000, which can be extended to ISO 100-25600. The corresponding ISO settings for the Olympus OM-D E-M1 Mark II are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 64-25600.

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

A58 versus E-M1 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 E-M1 II has a markedly higher DXO score than the A58 (overall score 6 points higher), which will translate into better image quality. The advantage is based on 0.4 bits higher color depth, 0.3 EV in additional dynamic range, and 0.8 stops in additional low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

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Sensor Characteristics
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Sony A58 APS-C 19.8 5456 36321080/60i23.312.575374
2.
 
Olympus E-M1 II Four Thirds 20.2 5184 38884K/30p23.712.8131280
3.
 
Canon SL1 APS-C 17.9 5184 34561080/30p21.811.384363
4.
 
Canon T5i APS-C 17.9 5184 34561080/30p21.711.268161
5.
 
Nikon D3300 APS-C 24.0 6000 40001080/60p24.312.8138582
6.
 
Nikon D3200 APS-C 24.1 6016 40001080/30p24.113.2113181
7.
 
Olympus E-M1 III Four Thirds 20.2 5184 38884K/30p23.313.1135676
8.
 
Olympus PEN-F Four Thirds 20.2 5184 38881080/60p23.112.489474
9.
 
Olympus E-M1 Four Thirds 15.9 4608 34561080/30p23.012.775773
10.
 
Panasonic GH5 Four Thirds 20.2 5184 38884K/60p23.913.080777
11.
 
Panasonic G85 Four Thirds 15.8 4592 34484K/30p22.812.565671
12.
 
Pentax K-S1 APS-C 20.0 5472 36481080/30p23.513.0106178
13.
 
Sony A68 APS-C 24.0 6000 40001080/60i24.113.570179
14.
 
Sony A77 II APS-C 24.0 6000 40001080/60p24.413.4101382
15.
 
Sony A5100 APS-C 24.0 6000 40001080/60p23.812.7134780
16.
 
Sony A6000 APS-C 24.0 6000 40001080/60p24.113.1134782
17.
 
Sony A3000 APS-C 19.8 5456 36321080/60i23.712.8106878
Note: DXO values in italics represent estimates based on sensor size and age.
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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 E-M1 II provides a better video resolution than the A58. It can shoot movie footage at 4K/30p, while the Sony is limited to 1080/60i.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The two cameras under review are similar with respect to both having an electronic viewfinder. However, the one in the E-M1 II offers a substantially higher resolution than the one in the A58 (2360k vs 1440k dots). The following table reports on some other key feature differences and similarities of the Sony A58, the Olympus E-M1 II, and comparable cameras.

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Core Features
# image Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Sony A581440 n2.7 / 460 tilting n 1/4000s 5.0/s Y Y
2.
 
Olympus E-M1 II2360 n3.0 / 1037 swivel Y 1/8000s 18.0/s n Y
3.
 
Canon SL1optical n3.0 / 1040 fixed Y 1/4000s 4.9/s Y n
4.
 
Canon T5ioptical n3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
5.
 
Nikon D3300optical n3.0 / 921 fixed n 1/4000s 5.0/s Y n
6.
 
Nikon D3200optical n3.0 / 921 fixed n 1/4000s 4.0/s Y n
7.
 
Olympus E-M1 III2360 n3.0 / 1037 swivel Y 1/8000s 18.0/s n Y
8.
 
Olympus PEN-F2360 n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
9.
 
Olympus E-M12360 n3.0 / 1037 tilting Y 1/8000s 10.0/s n Y
10.
 
Panasonic GH53680 n3.2 / 1620 swivel Y 1/8000s 12.0/s n Y
11.
 
Panasonic G852360 n3.0 / 1040 swivel Y 1/4000s 9.0/s Y Y
12.
 
Pentax K-S1optical n3.0 / 921 fixed n 1/6000s 5.4/s Y Y
13.
 
Sony A681440 Y2.7 / 460 tilting n 1/4000s 8.0/s Y Y
14.
 
Sony A77 II2359 Y3.0 / 1229 full-flex n 1/8000s 12.0/s Y Y
15.
 
Sony A5100none n3.0 / 922 tilting Y 1/4000s 6.0/s Y n
16.
 
Sony A60001440 n3.0 / 922 tilting n 1/4000s 11.0/s Y n
17.
 
Sony A3000202 n3.0 / 230 fixed n 1/4000s 2.5/s Y n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One difference between the cameras concerns the presence of an on-board flash. The A58 has one, while the E-M1 II does not. While the built-in flash of the A58 is not very powerful, it can at times be useful as a fill-in light.

The E-M1 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 A58 does not have a selfie-screen.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the E-M1 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-M1 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 A58 writes its imaging data to SDXC or Memory Stick PRO Duo cards, while the E-M1 II uses SDXC cards. The E-M1 II features dual card slots, which can be very useful in case a memory card fails. In contrast, the A58 only has one slot. The E-M1 II supports UHS-II cards on its first slot and UHS-I on its second one, while the A58 cannot take advantage of Ultra High Speed SD cards.

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Connectivity comparison

For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Sony Alpha SLT-A58 and Olympus OM-D E-M1 Mark II and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Sony A58Ystereo / monoY-mini2.0---
2.
 
Olympus E-M1 IIYstereo / monoYYmicro3.0Y--
3.
 
Canon SL1Ymono / monoY-mini2.0---
4.
 
Canon T5iYstereo / monoY-mini2.0---
5.
 
Nikon D3300Ymono / monoY-mini2.0---
6.
 
Nikon D3200Ymono / monoY-mini2.0---
7.
 
Olympus E-M1 IIIYstereo / monoYYmicro3.1Y-Y
8.
 
Olympus PEN-FYstereo / mono--micro2.0Y--
9.
 
Olympus E-M1Ystereo / monoY-micro2.0Y--
10.
 
Panasonic GH5Ystereo / monoYYfull3.1Y-Y
11.
 
Panasonic G85Ystereo / monoY-micro2.0Y--
12.
 
Pentax K-S1Ystereo / mono--micro2.0---
13.
 
Sony A68Ystereo / monoY-micro2.0---
14.
 
Sony A77 IIYstereo / monoY-mini2.0YY-
15.
 
Sony A5100-stereo / mono--micro2.0YY-
16.
 
Sony A6000Ystereo / mono--micro2.0YY-
17.
 
Sony A3000Ystereo / mono--mini2.0---
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It is notable that the E-M1 II offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the A58 does not provide wifi capability.

Studio photographers will appreciate that the Olympus E-M1 II (unlike the A58) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the A58 and the E-M1 II have been discontinued, but can regularly be found used on ebay. The A58 was replaced by the Sony A68, while the E-M1 II was followed by the Olympus E-M1 III. Further information on the features and operation of the A58 and E-M1 II can be found, respectively, in the Sony A58 Manual (free pdf) or the online Olympus E-M1 II Manual.

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Review summary

So what is the bottom line? Is the Sony A58 better than the Olympus E-M1 II or vice versa? Below is a summary of the relative strengths of each of the two contestants.

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Arguments in favor of the Sony Alpha SLT-A58:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Less heavy: Is lighter (by 82g or 14 percent) and hence easier to carry around.
  • Longer lasting: Can take more shots (690 versus 440) 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 (70 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in February 2013).

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Reasons to prefer the Olympus OM-D E-M1 Mark II:

  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Better image quality: Scores markedly higher (6 points) in the DXO overall evaluation.
  • Better low-light sensitivity: Can shoot in dim conditions (0.8 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 control: Has a headphone port that enables audio monitoring while recording.
  • More detailed viewfinder: Has higher resolution electronic viewfinder (2360k vs 1440k dots).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.74x vs 0.57x).
  • Larger screen: Has a bigger rear LCD (3.0" vs 2.7") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1037k vs 460k dots).
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (18 vs 5 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • 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.
  • Faster buffer clearing: Supports Ultra High Speed (UHS-II and UHS-I) SDXC cards.
  • More modern: Reflects 3 years and 6 months of technical progress since the A58 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the E-M1 II is the clear winner of the contest (26 : 6 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.

A58 06:26 E-M1 II

How about other alternatives? Do the specifications of the Sony A58 and the Olympus E-M1 II place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens 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 A58 or the E-M1 II perform in practice. 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 why expert reviews are important. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

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Expert Camera Reviews
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Sony A583/5......4.5/54.5/5 Feb 2013 599ebay.com
2.
 
Olympus E-M1 II5/5+ +5/585/1004.5/54.5/5 Sep 2016 1,999ebay.com
3.
 
Canon SL14/5+..78/1004/54/5 Mar 2013 549ebay.com
4.
 
Canon T5i......76/1004.5/54.5/5 Mar 2013 649ebay.com
5.
 
Nikon D33003/5+..77/1004.5/54.5/5 Jan 2014 499ebay.com
6.
 
Nikon D32005/5+ +..73/1004.5/54.5/5 Apr 2012 599ebay.com
7.
 
Olympus E-M1 III5/5..5/583/1004.5/54/5 Feb 2020 1,799ebay.com
8.
 
Olympus PEN-F....4/582/1004.5/55/5 Jan 2016 1,199ebay.com
9.
 
Olympus E-M15/5+ +..84/1004.5/54.5/5 Sep 2013 1,399ebay.com
10.
 
Panasonic GH54.5/5+ +..85/1004.5/55/5 Jan 2017 1,999ebay.com
11.
 
Panasonic G85..+ +..84/1005/54.5/5 Sep 2016 899ebay.com
12.
 
Pentax K-S14/5......4.5/54/5 Aug 2014 749ebay.com
13.
 
Sony A683/5......4/54/5 Nov 2015 699ebay.com
14.
 
Sony A77 II4/5....80/1004.5/55/5 May 2014 1,199ebay.com
15.
 
Sony A51004.5/5+....4.5/55/5 Aug 2014 549ebay.com
16.
 
Sony A60005/5+4.5/580/1004.5/55/5 Feb 2014 599ebay.com
17.
 
Sony A30003/5+....4/54/5 Aug 2013 329ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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Care should be taken when interpreting the review scores above, though. The ratings are only valid when referring to cameras in the same category and of the same age. Hence, a score should always be seen in the context of the camera's market launch date and its price, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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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: Sony A58 vs Olympus E-M1 II

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

    Camera Specifications
    Camera Model Sony A58 Olympus E-M1 II
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Sony A mount lenses Micro Four Thirds lenses
    Launch Date February 2013 September 2016
    Launch Price USD 599 USD 1,999
    Sensor Specs Sony A58 Olympus E-M1 II
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor Four Thirds Sensor
    Sensor Size 23.5 x 15.6 mm 17.3 x 13.0 mm
    Sensor Area 366.6 mm2 224.9 mm2
    Sensor Diagonal 28.2 mm 21.6 mm
    Crop Factor 1.5x 2.0x
    Sensor Resolution 19.8 Megapixels 20.2 Megapixels
    Image Resolution 5456 x 3632 pixels 5184 x 3888 pixels
    Pixel Pitch 4.31 μm 3.34 μm
    Pixel Density 5.41 MP/cm2 8.96 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/60i Video 4K/30p Video
    ISO Setting 100 - 16,000 ISO 200 - 25,600 ISO
    ISO Boost 100 - 25,600 ISO 64 - 25,600 ISO
    Image Processor BIONZ TruePic VIII
    DXO Sensor Quality (score) 74 80
    DXO Color Depth (bits) 23.3 23.7
    DXO Dynamic Range (EV) 12.5 12.8
    DXO Low Light (ISO) 753 1312
    Screen Specs Sony A58 Olympus E-M1 II
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.57x 0.74x
    Viewfinder Resolution 1440k dots 2360k dots
    LCD Framing Live View Live View
    Rear LCD Size 2.7inch 3.0inch
    LCD Resolution 460k dots 1037k dots
    LCD Attachment Tilting screen Swivel screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Sony A58 Olympus E-M1 II
    Focus System Phase-detect AF On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 5 shutter flaps/s 18 shutter flaps/s
    Shutter Life Expectancy100 000 actuations200 000 actuations
    Electronic Shutterno E-Shutterup to 1/32000s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium MS or SDXC cards SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support no Single UHS-II
    Connectivity Specs Sony A58 Olympus E-M1 II
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.0
    HDMI Port mini HDMI micro HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi Wifi built-in
    Body Specs Sony A58 Olympus E-M1 II
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Sony NP-FM500H Olympus BLH-1
    Battery Life (CIPA)690 shots per charge440 shots per charge
    Body Dimensions 129 x 95 x 78 mm
    (5.1 x 3.7 x 3.1 in)
    134 x 91 x 67 mm
    (5.3 x 3.6 x 2.6 in)
    Camera Weight 492 g (17.4 oz) 574 g (20.2 oz)
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