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Sony A5100 vs Olympus E-M10 III

The Sony Alpha A5100 and the Olympus OM-D E-M10 Mark III are two digital cameras that were announced, respectively, in August 2014 and August 2017. Both the A5100 and the E-M10 III are mirrorless interchangeable lens cameras that are based on an APS-C (A5100) and a Four Thirds (E-M10 III) sensor. The Sony has a resolution of 24 megapixels, whereas the Olympus provides 15.9 MP.

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

Headline Specifications
Sony A5100
versus
Olympus E-M10 III
Sony A5100   Olympus E-M10 III
Mirrorless system camera Mirrorless system camera
Sony E mount lenses Micro Four Thirds lenses
24 MP – APS-C sensor 15.9 MP – Four Thirds sensor
1080/60p Video 4K/30p Video
ISO 100-25,600 ISO 200-25,600
No viewfinder, LCD framing Electronic viewfinder (2360k dots)
3.0" LCD – 922k dots 3.0" LCD – 1040k dots
Tilting touchscreen Tilting touchscreen
6 shutter flaps per second 8.6 shutter flaps per second
Lens stabilization onlyIn-body stabilization
400 shots per battery charge330 shots per battery charge
110 x 63 x 36 mm, 283 g 122 x 84 x 50 mm, 410 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Alpha A5100 and the Olympus OM-D E-M10 Mark III? 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 A5100 and the Olympus E-M10 III. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All size dimensions are rounded to the nearest millimeter.

The A5100 can be obtained in two different colors (black, white), while the E-M10 III is also available in two color-versions, but different ones (black, silver).

Size Sony A5100 vs Olympus E-M10 III
Compare A5100 versus E-M10 III top
Comparison A5100 or E-M10 III rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-M10 III is considerably larger (48 percent) than the Sony A5100. Moreover, the E-M10 III is substantially heavier (45 percent) than the A5100. In this context, it is worth noting that neither the A5100 nor the E-M10 III are weather-sealed.

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 Sony E-Mount Lens Catalog (A5100) and the Micro Four Thirds Lens Catalog (E-M10 III). 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 A5100 gets 400 shots out of its Sony NP-FW50 battery, while the E-M10 III can take 330 images on a single charge of its Olympus BLS-50 power pack. The power pack in the A5100 can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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 A5100 110 mm 63 mm 36 mm 283 g 400 n Aug 2014 549ebay.com
2.
 
Olympus E-M10 III 122 mm 84 mm 50 mm 410 g 330 n Aug 2017 649ebay.com
3.
 
Olympus E-M10 IV 122 mm 84 mm 49 mm 383 g 360 n Aug 2020 699 amazon.com
4.
 
Olympus E-PL10 117 mm 68 mm 39 mm 380 g 350 n Oct 2019 599ebay.com
5.
 
Olympus E-PL9 117 mm 68 mm 39 mm 380 g 350 n Feb 2018 599ebay.com
6.
 
Olympus E-PL8 115 mm 67 mm 38 mm 357 g 350 n Sep 2016 549ebay.com
7.
 
Olympus E-M10 II 120 mm 83 mm 47 mm 390 g 320 n Aug 2015 649ebay.com
8.
 
Sony RX100 IV 102 mm 58 mm 41 mm 298 g 280 n Jun 2015 999ebay.com
9.
 
Sony A5000 110 mm 63 mm 36 mm 269 g 420 n Jan 2014 449ebay.com
10.
 
Sony A6000 120 mm 67 mm 45 mm 344 g 360 n Feb 2014 599ebay.com
11.
 
Sony A3000 128 mm 91 mm 85 mm 411 g 470 n Aug 2013 329ebay.com
12.
 
Sony NEX-3N 110 mm 62 mm 35 mm 269 g 480 n Feb 2013 499ebay.com
13.
 
Sony NEX-5T 111 mm 59 mm 39 mm 276 g 330 n Aug 2013 699ebay.com
14.
 
Sony RX100 II 102 mm 58 mm 38 mm 281 g 350 n Jun 2013 749ebay.com
15.
 
Sony NEX-F3 117 mm 67 mm 42 mm 314 g 470 n May 2012 599ebay.com
16.
 
Sony RX100 102 mm 58 mm 36 mm 240 g 330 n Jun 2012 649ebay.com
17.
 
Sony NEX-3 117 mm 62 mm 33 mm 297 g 330 n May 2010 599ebay.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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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 A5100 was launched at a somewhat lower price (by 15 percent) than the E-M10 III, which makes it more attractive for photographers on a tight budget. 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Sony A5100 features an APS-C sensor and the Olympus E-M10 III a Four Thirds sensor. The sensor area in the E-M10 III 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 A5100 has a native 3:2 aspect ratio, while the one in the E-M10 III offers a 4:3 aspect.

Sony A5100 and Olympus E-M10 III sensor measures

With 24MP, the A5100 offers a higher resolution than the E-M10 III (15.9MP), but the A5100 nevertheless has larger individual pixels (pixel pitch of 3.91μm versus 3.76μm for the E-M10 III) due to its larger sensor. However, the E-M10 III is a much more recent model (by 3 years) than the A5100, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the E-M10 III has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A5100 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A5100 for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Olympus E-M10 III 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 A5100 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Sony Alpha A5100 has a native sensitivity range from ISO 100 to ISO 25600. The corresponding ISO settings for the Olympus OM-D E-M10 Mark III are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 100-25600.

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.

A5100 versus E-M10 III MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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"). 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 A5100 APS-C 24.0 6000 40001080/60p23.812.7134780
2.
 
Olympus E-M10 III Four Thirds 15.9 4608 34564K/30p23.112.8112074
3.
 
Olympus E-M10 IV Four Thirds 20.2 5184 38884K/30p23.313.2140276
4.
 
Olympus E-PL10 Four Thirds 15.9 4608 34564K/30p23.313.1132476
5.
 
Olympus E-PL9 Four Thirds 15.9 4608 34564K/30p23.112.8116274
6.
 
Olympus E-PL8 Four Thirds 15.9 4608 34561080/30p23.012.6103073
7.
 
Olympus E-M10 II Four Thirds 15.9 4608 34561080/60p23.112.584273
8.
 
Sony RX100 IV 1-inch 20.0 5472 36484K/30p22.812.659170
9.
 
Sony A5000 APS-C 19.8 5456 36321080/60i23.813.0108979
10.
 
Sony A6000 APS-C 24.0 6000 40001080/60p24.113.1134782
11.
 
Sony A3000 APS-C 19.8 5456 36321080/60i23.712.8106878
12.
 
Sony NEX-3N APS-C 16.0 4912 32641080/60i22.812.5106774
13.
 
Sony NEX-5T APS-C 16.0 4912 32641080/60p23.613.0101578
14.
 
Sony RX100 II 1-inch 20.0 5472 36481080/60p22.512.448367
15.
 
Sony NEX-F3 APS-C 16.0 4912 32641080/60i22.712.3111473
16.
 
Sony RX100 1-inch 20.0 5472 36481080/60p22.612.439066
17.
 
Sony NEX-3 APS-C 14.0 4592 3056720/30p22.112.083068
Note: DXO values in italics represent estimates based on sensor size and age.
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Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the E-M10 III provides a better video resolution than the A5100. It can shoot movie footage at 4K/30p, while the Sony is limited to 1080/60p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the E-M10 III has an electronic viewfinder (2360k dots), which can be very helpful when shooting in bright sunlight. In contrast, the A5100 relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Sony A5100 and Olympus E-M10 III along with similar information for a selection of comparators.

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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 A5100none n3.0 / 922 tilting Y 1/4000s 6.0/s Y n
2.
 
Olympus E-M10 III2360 n3.0 / 1040 tilting Y 1/4000s 8.6/s Y Y
3.
 
Olympus E-M10 IV2360 n3.0 / 1040 tilting Y 1/4000s 15.0/s Y Y
4.
 
Olympus E-PL10none n3.0 / 1040 tilting Y 1/4000s 8.6/s Y Y
5.
 
Olympus E-PL9none n3.0 / 1040 tilting Y 1/4000s 8.6/s Y Y
6.
 
Olympus E-PL8optional n3.0 / 1037 tilting Y 1/4000s 8.0/s n Y
7.
 
Olympus E-M10 II2360 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y Y
8.
 
Sony RX100 IV2359 n3.0 / 1228 tilting n 1/2000s 16.0/s Y Y
9.
 
Sony A5000none n3.0 / 461 tilting n 1/4000s 3.5/s Y n
10.
 
Sony A60001440 n3.0 / 922 tilting n 1/4000s 11.0/s Y n
11.
 
Sony A3000202 n3.0 / 230 fixed n 1/4000s 2.5/s Y n
12.
 
Sony NEX-3Noptional n3.0 / 460 tilting n 1/4000s 4.0/s Y n
13.
 
Sony NEX-5Toptional n3.0 / 922 tilting Y 1/4000s 10.0/s n n
14.
 
Sony RX100 IIoptional n3.0 / 1229 tilting n 1/2000s 10.0/s Y Y
15.
 
Sony NEX-F3optional n3.0 / 920 tilting n 1/4000s 5.5/s Y n
16.
 
Sony RX100none n3.0 / 1229 fixed n 1/2000s 10.0/s Y Y
17.
 
Sony NEX-3optional n3.0 / 920 tilting n 1/4000s 7.0/s n n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One feature that differentiates the E-M10 III and the A5100 is in-body image stabilization (IBIS). The E-M10 III reduces the risk of handshake-induced blur with all attached lenses, while the A5100 offers no blur reduction with lenses that themselves do not provide optical image stabilization.

The A5100 has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the E-M10 III 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-M10 III 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-M10 III 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 A5100 writes its imaging data to SDXC or Memory Stick PRO Duo cards, while the E-M10 III uses SDXC cards. The E-M10 III supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the A5100 can use UHS-I cards (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 Sony Alpha A5100 and Olympus OM-D E-M10 Mark III 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 A5100-stereo / mono--micro2.0YY-
2.
 
Olympus E-M10 IIIYstereo / mono--micro2.0Y--
3.
 
Olympus E-M10 IVYstereo / mono--micro2.0Y-Y
4.
 
Olympus E-PL10Ystereo / mono--micro2.0Y-Y
5.
 
Olympus E-PL9Ystereo / mono--micro2.0Y-Y
6.
 
Olympus E-PL8Ystereo / mono--micro2.0Y--
7.
 
Olympus E-M10 IIYstereo / mono--micro2.0Y--
8.
 
Sony RX100 IV-stereo / mono--micro2.0YY-
9.
 
Sony A5000-stereo / mono--micro2.0YY-
10.
 
Sony A6000Ystereo / mono--micro2.0YY-
11.
 
Sony A3000Ystereo / mono--mini2.0---
12.
 
Sony NEX-3N-stereo / mono--micro2.0---
13.
 
Sony NEX-5TYstereo / mono--mini2.0YY-
14.
 
Sony RX100 IIYstereo / mono--micro2.0YY-
15.
 
Sony NEX-F3Ystereo / mono--mini2.0---
16.
 
Sony RX100-stereo / mono--micro2.0---
17.
 
Sony NEX-3Ystereo / mono--mini2.0---
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It is notable that the E-M10 III has a hotshoe, which makes it possible to easily attach optional accessories, such as an external flash gun. The A5100 does not feature such an accessory-socket.

Both the A5100 and the E-M10 III have been discontinued, but can regularly be found used on ebay. The E-M10 III was replaced by the Olympus E-M10 IV, while the A5100 does not have a direct successor. Further information on the features and operation of the A5100 and E-M10 III can be found, respectively, in the Sony A5100 Manual (free pdf) or the online Olympus E-M10 III Manual.

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Review summary

So what is the bottom line? Is the Sony A5100 better than the Olympus E-M10 III or vice versa? A synthesis of the relative strong points of each of the models is listed below.

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Advantages of the Sony Alpha A5100:

  • More detail: Offers more megapixels (24 vs 15.9MP) with a 25% higher linear resolution.
  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • More compact: Is smaller (110x63mm vs 122x84mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 127g or 31 percent) and hence easier to carry around.
  • Longer lasting: Can take more shots (400 versus 330) on a single battery charge.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • More affordable: Was introduced into a lower priced segment (15 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in August 2014).

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Arguments in favor of the Olympus OM-D E-M10 Mark III:

  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 922k dots).
  • Faster burst: Shoots at higher frequency (8.6 vs 6 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.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More modern: Reflects 3 years of technical progress since the A5100 launch.

If the count of individual advantages (bullet points above) is taken as a guide, the match-up finishes in a tie (11 points each). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. A professional wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

A5100 11:11 E-M10 III

How about other alternatives? Do the specifications of the Sony A5100 and the Olympus E-M10 III place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera listing whether the two cameras rank among the cream of the crop.

In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the A5100 or the E-M10 III. 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 hands-on reviews by experts 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 A51004.5/5+....4.5/55/5 Aug 2014 549ebay.com
2.
 
Olympus E-M10 III..+5/580/1004.5/54.5/5 Aug 2017 649ebay.com
3.
 
Olympus E-M10 IV4.5/5..5/581/1004.5/54.5/5 Aug 2020 699 amazon.com
4.
 
Olympus E-PL10....4/577/100..4/5 Oct 2019 599ebay.com
5.
 
Olympus E-PL9..+....4.5/54/5 Feb 2018 599ebay.com
6.
 
Olympus E-PL8........4.5/54/5 Sep 2016 549ebay.com
7.
 
Olympus E-M10 II4.5/5+ +..80/1005/55/5 Aug 2015 649ebay.com
8.
 
Sony RX100 IV4.5/5+ +..85/1004/54.5/5 Jun 2015 999ebay.com
9.
 
Sony A50003/5+....4.5/54.5/5 Jan 2014 449ebay.com
10.
 
Sony A60005/5+4.5/580/1004.5/55/5 Feb 2014 599ebay.com
11.
 
Sony A30003/5+....4/54/5 Aug 2013 329ebay.com
12.
 
Sony NEX-3N3/5......4.5/54.5/5 Feb 2013 499ebay.com
13.
 
Sony NEX-5T........4.5/54.5/5 Aug 2013 699ebay.com
14.
 
Sony RX100 II5/5+ +..79/1004.5/54.5/5 Jun 2013 749ebay.com
15.
 
Sony NEX-F34/5....74/1004.5/54.5/5 May 2012 599ebay.com
16.
 
Sony RX1005/5+ +..78/1004/55/5 Jun 2012 649ebay.com
17.
 
Sony NEX-3......70/1004.5/54/5 May 2010 599ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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The above review scores should be interpreted 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. 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. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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Other camera comparisons

Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just use the search menu 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 A5100 vs Olympus E-M10 III

    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 A5100 Olympus E-M10 III
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Sony E mount lenses Micro Four Thirds lenses
    Launch Date August 2014 August 2017
    Launch Price USD 549 USD 649
    Sensor Specs Sony A5100 Olympus E-M10 III
    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 24 Megapixels 15.9 Megapixels
    Image Resolution 6000 x 4000 pixels 4608 x 3456 pixels
    Pixel Pitch 3.91 μm 3.76 μm
    Pixel Density 6.55 MP/cm2 7.08 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/60p Video 4K/30p Video
    ISO Setting 100 - 25,600 ISO 200 - 25,600 ISO
    ISO Boost no Enhancement 100 - 25,600 ISO
    Image Processor BIONZ X TruePic VIII
    DXO Sensor Quality (score) 80 ..
    DXO Color Depth (bits) 23.8 ..
    DXO Dynamic Range (EV) 12.7 ..
    DXO Low Light (ISO) 1347 ..
    Screen Specs Sony A5100 Olympus E-M10 III
    Viewfinder Type no viewfinder Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.62x
    Viewfinder Resolution 2360k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 922k dots 1040k dots
    LCD Attachment Tilting screen Tilting screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Sony A5100 Olympus E-M10 III
    Focus System On-Sensor Phase-detect Contrast-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/4000s
    Continuous Shooting 6 shutter flaps/s 8.6 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/16000s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium MS or SDXC cards SDXC cards
    Single or Dual Card Slots Single card slot Single card slot
    UHS card support UHS-I UHS-II
    Connectivity Specs Sony A5100 Olympus E-M10 III
    External Flash no Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI micro HDMI
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication NFC built-in no NFC
    Body Specs Sony A5100 Olympus E-M10 III
    Battery Type Sony NP-FW50 Olympus BLS-50
    Battery Life (CIPA)400 shots per charge330 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 110 x 63 x 36 mm
    (4.3 x 2.5 x 1.4 in)
    122 x 84 x 50 mm
    (4.8 x 3.3 x 2.0 in)
    Camera Weight 283 g (10.0 oz) 410 g (14.5 oz)
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