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Olympus E-M10 II vs Sony A6400

The Olympus OM-D E-M10 Mark II and the Sony Alpha A6400 are two digital cameras that were announced, respectively, in August 2015 and January 2019. Both the E-M10 II and the A6400 are mirrorless interchangeable lens cameras that are based on a Four Thirds (E-M10 II) and an APS-C (A6400) sensor. The Olympus has a resolution of 15.9 megapixels, whereas the Sony provides 24 MP.

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

Headline Specifications
Olympus E-M10 II
versus
Sony A6400
Olympus E-M10 II   Sony A6400
Mirrorless system camera Mirrorless system camera
Micro Four Thirds lenses Sony E mount lenses
15.9 MP – Four Thirds sensor 24 MP – APS-C sensor
1080/60p Video 4K/30p Video
ISO 200-25,600 ISO 100-32,000 (100 - 102,400)
Electronic viewfinder (2360k dots) Electronic viewfinder (2359k dots)
3.0" LCD – 1040k dots 3.0" LCD – 922k dots
Tilting touchscreen Tilting touchscreen
8 shutter flaps per second 11 shutter flaps per second
In-body stabilizationLens stabilization only
not weather sealedWeathersealed body
320 shots per battery charge410 shots per battery charge
120 x 83 x 47 mm, 390 g 120 x 67 x 50 mm, 403 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus OM-D E-M10 Mark II and the Sony Alpha A6400? 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

An illustration of the physical size and weight of the Olympus E-M10 II and the Sony A6400 is provided in the side-by-side display below. 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 measures are rounded to the nearest millimeter.

The E-M10 II can be obtained in three different colors (black, silver, brown), while the A6400 is only available in black.

Size Olympus E-M10 II vs Sony A6400
Compare E-M10 II versus A6400 top
Comparison E-M10 II or A6400 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A6400 is notably smaller (19 percent) than the Olympus E-M10 II. However, the A6400 is slightly heavier (3 percent) than the E-M10 II. It is noteworthy in this context that the A6400 is splash and dust-proof, while the E-M10 II does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Micro Four Thirds Lens Catalog (E-M10 II) and the Sony E-Mount Lens Catalog (A6400). Mirrorless cameras, such as the two under consideration, have the additional advantage of having a short flange to focal plane distance, which makes it possible to mount many lenses from other systems onto the camera via adapters.

Concerning battery life, the E-M10 II gets 320 shots out of its Olympus BLS-50 battery, while the A6400 can take 410 images on a single charge of its Sony NP-FW50 power pack. The power pack in the A6400 can be charged via the USB port, which can be very convenient when travelling.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

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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.
 
Olympus E-M10 II 120 mm 83 mm 47 mm 390 g 320 n Aug 2015 649ebay.com
2.
 
Sony A6400 120 mm 67 mm 50 mm 403 g 410 Y Jan 2019 899 amazon.com
3.
 
Nikon D5300 125 mm 98 mm 76 mm 480 g 600 n Oct 2013 799ebay.com
4.
 
Olympus E-PL9 117 mm 68 mm 39 mm 380 g 350 n Feb 2018 599ebay.com
5.
 
Olympus E-M10 III 122 mm 84 mm 50 mm 410 g 330 n Aug 2017 649ebay.com
6.
 
Olympus E-PL8 115 mm 67 mm 38 mm 357 g 350 n Sep 2016 549ebay.com
7.
 
Olympus PEN-F 125 mm 72 mm 37 mm 427 g 330 n Jan 2016 1,199ebay.com
8.
 
Olympus E-M10 119 mm 82 mm 46 mm 396 g 320 n Jan 2014 699ebay.com
9.
 
Olympus E-PL7 115 mm 67 mm 38 mm 357 g 350 n Aug 2014 599ebay.com
10.
 
Olympus E-P5 122 mm 69 mm 37 mm 420 g 330 n May 2013 999ebay.com
11.
 
Olympus E-PL6 111 mm 64 mm 38 mm 325 g 360 n May 2013 599ebay.com
12.
 
Olympus E-PL5 111 mm 64 mm 38 mm 325 g 360 n Sep 2012 599ebay.com
13.
 
Panasonic GX85 122 mm 71 mm 44 mm 426 g 290 n Apr 2016 799 amazon.com
14.
 
Sony A6100 120 mm 67 mm 59 mm 396 g 420 n Aug 2019 749ebay.com
15.
 
Sony A6300 120 mm 67 mm 49 mm 404 g 400 Y Feb 2016 999ebay.com
16.
 
Sony A5100 110 mm 63 mm 36 mm 283 g 400 n Aug 2014 549ebay.com
17.
 
Sony A6000 120 mm 67 mm 45 mm 344 g 360 n Feb 2014 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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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 E-M10 II was launched at a markedly lower price (by 28 percent) than the A6400, which puts it into a different market segment. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. 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 tend to be more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Olympus E-M10 II features a Four Thirds sensor and the Sony A6400 an APS-C sensor. The sensor area in the A6400 is 63 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 1.5. The sensor in the E-M10 II has a native 4:3 aspect ratio, while the one in the A6400 offers a 3:2 aspect.

Olympus E-M10 II and Sony A6400 sensor measures

With 24MP, the A6400 offers a higher resolution than the E-M10 II (15.9MP), but the A6400 nevertheless has larger individual pixels (pixel pitch of 3.91μm versus 3.76μm for the E-M10 II) due to its larger sensor. Moreover, the A6400 is a much more recent model (by 3 years and 4 months) than the E-M10 II, 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 E-M10 II has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A6400 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A6400 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 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 A6400 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Olympus OM-D E-M10 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 A6400 are ISO 100 to ISO 32000, with the possibility to increase the ISO range to 100-102400.

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.

E-M10 II versus A6400 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 A6400 has a markedly higher DXO score than the E-M10 II (overall score 10 points higher), which will translate into better image quality. The advantage is based on 0.9 bits higher color depth, 1.1 EV in additional dynamic range, and 0.8 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

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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.
 
Olympus E-M10 II Four Thirds 15.9 4608 34561080/60p23.112.584273
2.
 
Sony A6400 APS-C 24.0 6000 40004K/30p24.013.6143183
3.
 
Nikon D5300 APS-C 24.0 6000 40001080/60p24.013.9133883
4.
 
Olympus E-PL9 Four Thirds 15.9 4608 34564K/30p23.112.8116274
5.
 
Olympus E-M10 III Four Thirds 15.9 4608 34564K/30p23.112.8112074
6.
 
Olympus E-PL8 Four Thirds 15.9 4608 34561080/30p23.012.6103073
7.
 
Olympus PEN-F Four Thirds 20.2 5184 38881080/60p23.112.489474
8.
 
Olympus E-M10 Four Thirds 15.9 4608 34561080/30p22.812.388472
9.
 
Olympus E-PL7 Four Thirds 15.9 4608 34561080/30p22.712.487372
10.
 
Olympus E-P5 Four Thirds 15.9 4608 34561080/30p22.812.489572
11.
 
Olympus E-PL6 Four Thirds 15.9 4608 34561080/30p22.512.071768
12.
 
Olympus E-PL5 Four Thirds 15.9 4608 34561080/30p22.812.388972
13.
 
Panasonic GX85 Four Thirds 15.8 4592 34484K/30p22.912.666271
14.
 
Sony A6100 APS-C 24.0 6000 40004K/30p24.113.6194784
15.
 
Sony A6300 APS-C 24.0 6000 40004K/30p24.413.7143785
16.
 
Sony A5100 APS-C 24.0 6000 40001080/60p23.812.7134780
17.
 
Sony A6000 APS-C 24.0 6000 40001080/60p24.113.1134782
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. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the A6400 provides a better video resolution than the E-M10 II. It can shoot movie footage at 4K/30p, while the Olympus 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. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the E-M10 II offers a slightly higher resolution than the one in the A6400 (2360k vs 2359k dots). The table below summarizes some of the other core capabilities of the Olympus E-M10 II and Sony A6400 in connection with corresponding information for a sample of similar 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.
 
Olympus E-M10 II2360 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y Y
2.
 
Sony A64002359 n3.0 / 922 tilting Y 1/4000s 11.0/s Y n
3.
 
Nikon D5300optical n3.2 / 1037 swivel n 1/4000s 5.0/s Y n
4.
 
Olympus E-PL9none n3.0 / 1040 tilting Y 1/4000s 8.6/s Y Y
5.
 
Olympus E-M10 III2360 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 PEN-F2360 n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
8.
 
Olympus E-M101440 n3.0 / 1037 tilting Y 1/4000s 8.0/s Y Y
9.
 
Olympus E-PL7optional n3.0 / 1037 tilting Y 1/4000s 8.0/s n Y
10.
 
Olympus E-P5optional n3.0 / 1037 tilting Y 1/8000s 9.0/s Y Y
11.
 
Olympus E-PL6optional n3.0 / 460 tilting Y 1/4000s 8.0/s n Y
12.
 
Olympus E-PL5optional n3.0 / 460 tilting Y 1/4000s 8.0/s n Y
13.
 
Panasonic GX852765 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y Y
14.
 
Sony A61001440 n3.0 / 922 tilting Y 1/4000s 11.0/s Y n
15.
 
Sony A63002359 n3.0 / 922 tilting n 1/4000s 11.0/s Y n
16.
 
Sony A5100none n3.0 / 922 tilting Y 1/4000s 6.0/s Y n
17.
 
Sony A60001440 n3.0 / 922 tilting n 1/4000s 11.0/s Y 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 II and the A6400 is in-body image stabilization (IBIS). The E-M10 II reduces the risk of handshake-induced blur with all attached lenses, while the A6400 offers no blur reduction with lenses that themselves do not provide optical image stabilization.

The A6400 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-M10 II 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, both cameras under consideration feature an 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 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-M10 II writes its imaging data to SDXC cards, while the A6400 uses SDXC or Memory Stick PRO Duo cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

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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 OM-D E-M10 Mark II and Sony Alpha A6400 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.
 
Olympus E-M10 IIYstereo / mono--micro2.0Y--
2.
 
Sony A6400Ystereo / monoY-micro2.0YYY
3.
 
Nikon D5300Ystereo / monoY-mini2.0Y--
4.
 
Olympus E-PL9Ystereo / mono--micro2.0Y-Y
5.
 
Olympus E-M10 IIIYstereo / mono--micro2.0Y--
6.
 
Olympus E-PL8Ystereo / mono--micro2.0Y--
7.
 
Olympus PEN-FYstereo / mono--micro2.0Y--
8.
 
Olympus E-M10Ystereo / mono--micro2.0Y--
9.
 
Olympus E-PL7Ystereo / mono--micro2.0Y--
10.
 
Olympus E-P5Ystereo / mono--micro2.0Y--
11.
 
Olympus E-PL6Ystereo / mono--mini2.0---
12.
 
Olympus E-PL5Ystereo / mono--mini2.0---
13.
 
Panasonic GX85Ystereo / mono--micro2.0Y--
14.
 
Sony A6100Ystereo / monoY-micro2.0YYY
15.
 
Sony A6300Ystereo / monoY-micro2.0YY-
16.
 
Sony A5100-stereo / mono--micro2.0YY-
17.
 
Sony A6000Ystereo / mono--micro2.0YY-
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It is notable that the A6400 has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The E-M10 II does not feature such a mic input.

The A6400 is a recent model that features in the current product line-up of Sony. In contrast, the E-M10 II has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the E-M10 II was succeeded by the Olympus E-M10 III. Further information on the features and operation of the E-M10 II and A6400 can be found, respectively, in the Olympus E-M10 II Manual (free pdf) or the online Sony A6400 Manual.

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Review summary

So how do things add up? Is there a clear favorite between the Olympus E-M10 II and the Sony A6400? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

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Reasons to prefer the Olympus OM-D E-M10 Mark II:

  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 922k dots).
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • More affordable: Was introduced into a lower priced category (28 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in August 2015).

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Advantages of the Sony Alpha A6400:

  • More detail: Has more megapixels (24 vs 15.9MP), which boosts linear resolution by 25%.
  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Better image quality: Scores markedly higher (10 points) in the DXO overall evaluation.
  • More dynamic range: Captures a broader range of light and dark details (1.1 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (0.8 stops ISO advantage).
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
  • 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.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.70x vs 0.62x).
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (11 vs 8 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (120x67mm vs 120x83mm) and will fit more readily into a bag.
  • Longer lasting: Gets more shots (410 versus 320) out of a single battery charge.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • More modern: Reflects 3 years and 4 months of technical progress since the E-M10 II launch.

If the count of individual advantages (bullet points above) is taken as a guide, the A6400 is the clear winner of the contest (18 : 6 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision 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.

E-M10 II 06:18 A6400

How about other alternatives? Do the specifications of the Olympus E-M10 II and the Sony A6400 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera listing whether the two cameras rank among the cream of the crop.

In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the E-M10 II or the A6400. 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 where reviews by experts come in. The following table reports the overall ratings of the cameras as published by some of the major 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.
 
Olympus E-M10 II4.5/5+ +..80/1005/55/5 Aug 2015 649ebay.com
2.
 
Sony A64004/5+4/585/1004.5/54/5 Jan 2019 899 amazon.com
3.
 
Nikon D53004/5+ +..79/1004.5/54.5/5 Oct 2013 799ebay.com
4.
 
Olympus E-PL9..+....4.5/54/5 Feb 2018 599ebay.com
5.
 
Olympus E-M10 III..+5/580/1004.5/54.5/5 Aug 2017 649ebay.com
6.
 
Olympus E-PL8........4.5/54/5 Sep 2016 549ebay.com
7.
 
Olympus PEN-F....4/582/1004.5/55/5 Jan 2016 1,199ebay.com
8.
 
Olympus E-M104/5....80/1005/55/5 Jan 2014 699ebay.com
9.
 
Olympus E-PL74/5+....5/54/5 Aug 2014 599ebay.com
10.
 
Olympus E-P55/5+ +..78/1004.5/55/5 May 2013 999ebay.com
11.
 
Olympus E-PL6............ May 2013 599ebay.com
12.
 
Olympus E-PL53/5+ +....4.5/54.5/5 Sep 2012 599ebay.com
13.
 
Panasonic GX854.5/5+ +..82/1005/55/5 Apr 2016 799 amazon.com
14.
 
Sony A6100....4/582/1004/55/5 Aug 2019 749ebay.com
15.
 
Sony A63004.5/5+..85/1005/55/5 Feb 2016 999ebay.com
16.
 
Sony A51004.5/5+....4.5/55/5 Aug 2014 549ebay.com
17.
 
Sony A60005/5+4.5/580/1004.5/55/5 Feb 2014 599ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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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. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, please note that some of the review sites have changed their methodology and reporting over time.

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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 use the search menu below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications: Olympus E-M10 II vs Sony A6400

    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-M10 II Sony A6400
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Micro Four Thirds lenses Sony E mount lenses
    Launch Date August 2015 January 2019
    Launch Price USD 649 USD 899
    Sensor Specs Olympus E-M10 II Sony A6400
    Sensor Technology CMOS CMOS
    Sensor Format Four Thirds Sensor APS-C Sensor
    Sensor Size 17.3 x 13.0 mm 23.5 x 15.6 mm
    Sensor Area 224.9 mm2 366.6 mm2
    Sensor Diagonal 21.6 mm 28.2 mm
    Crop Factor 2.0x 1.5x
    Sensor Resolution 15.9 Megapixels 24 Megapixels
    Image Resolution 4608 x 3456 pixels 6000 x 4000 pixels
    Pixel Pitch 3.76 μm 3.91 μm
    Pixel Density 7.08 MP/cm2 6.55 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 1080/60p Video 4K/30p Video
    ISO Setting 200 - 25,600 ISO 100 - 32,000 ISO
    ISO Boost 100 - 25,600 ISO 100 - 102,400 ISO
    Image Processor TruePic VII BIONZ X
    DXO Sensor Quality (score) 73 83
    DXO Color Depth (bits) 23.1 24
    DXO Dynamic Range (EV) 12.5 13.6
    DXO Low Light (ISO) 842 1431
    Screen Specs Olympus E-M10 II Sony A6400
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.62x 0.70x
    Viewfinder Resolution 2360k dots 2359k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1040k dots 922k dots
    LCD Attachment Tilting screen Tilting screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Olympus E-M10 II Sony A6400
    Focus System Contrast-detect AF On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/4000s
    Continuous Shooting 8 shutter flaps/s 11 shutter flaps/s
    Electronic Shutterup to 1/16000sYES
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationIn-body stabilizationLens stabilization only
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium SDXC cards MS or SDXC cards
    Single or Dual Card Slots Single card slot Single card slot
    UHS card support UHS-I UHS-I
    Connectivity Specs Olympus E-M10 II Sony A6400
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI micro HDMI
    Microphone Port no MIC socket External MIC port
    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-M10 II Sony A6400
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Olympus BLS-50 Sony NP-FW50
    Battery Life (CIPA)320 shots per charge410 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 120 x 83 x 47 mm
    (4.7 x 3.3 x 1.9 in)
    120 x 67 x 50 mm
    (4.7 x 2.6 x 2.0 in)
    Camera Weight 390 g (13.8 oz) 403 g (14.2 oz)
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