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Olympus E-M5 III vs Panasonic GH5s

The Olympus OM-D E-M5 Mark III and the Panasonic Lumix DC-GH5s are two enthusiast cameras that were revealed to the public, respectively, in October 2019 and January 2018. Both the E-M5 III and the GH5s are mirrorless interchangeable lens cameras that are equipped with a Four Thirds sensor. The Olympus has a resolution of 20.2 megapixels, whereas the Panasonic provides 9.9 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 III VS Panasonic GH5s
Olympus E-M5 III Panasonic GH5s
Mirrorless system camera Mirrorless system camera
Micro Four Thirds lenses Micro Four Thirds lenses
20.2 MP, Four Thirds Sensor 9.9 MP, Four Thirds Sensor
4k/24p Video 4K/60p Video
ISO 200-25600 ISO 160-51200 (80-204800)
Electronic viewfinder (2360k dots) Electronic viewfinder (3680k dots)
3.0" LCD, 1040k dots 3.2" LCD, 1620k dots
Swivel touchscreen Swivel touchscreen
10 shutter flaps per second 12 shutter flaps per second
In-body stabilizationLens stabilization only
Weathersealed bodyWeathersealed body
310 shots per battery charge440 shots per battery charge
125 x 85 x 50 mm, 414 g 139 x 98 x 87 mm, 660 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus OM-D E-M5 Mark III and the Panasonic Lumix DC-GH5s? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

Body comparison

The physical size and weight of the Olympus E-M5 III and the Panasonic GH5s are illustrated 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 width, height and depth dimensions are rounded to the nearest millimeter.

The E-M5 III can be obtained in two different colors (black, silver), while the GH5s is only available in black.

Size Olympus E-M5 III vs Panasonic GH5s
Compare E-M5 III versus GH5s top
Comparison E-M5 III or GH5s rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic GH5s is notably larger (28 percent) than the Olympus E-M5 III. Moreover, the GH5s is substantially heavier (59 percent) than the E-M5 III. 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. In this particular case, both cameras feature the same lens mount, so that they can use the same lenses. You can compare the optics available in the Micro Four Thirds Lens Catalog. 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-M5 III gets 310 shots out of its BLS-50 battery, while the GH5s can take 440 images on a single charge of its DMW-BLF19 power pack. The power pack in the E-M5 III can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. In case you want to display and compare another camera duo, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Camera
Model
 
Olympus E-M5 III» 4.9 in 3.3 in 2.0 in 14.6 oz 310 Y Oct 2019 1,199 iOlympus E-M5 III
 
Panasonic GH5s« 5.5 in 3.9 in 3.4 in 23.3 oz 440 Y Jan 2018 2,499 iPanasonic GH5s
 
Olympus E-M1 III« » 5.3 in 3.6 in 2.7 in 20.5 oz 420 Y Feb 2020 1,799 iOlympus E-M1 III
 
Olympus E-M1X« » 5.7 in 5.8 in 3.0 in 35.2 oz 870 Y Jan 2019 2,999 iOlympus E-M1X
 
Olympus E-PL9« » 4.6 in 2.7 in 1.5 in 13.4 oz 350 n Feb 2018 599 iOlympus E-PL9
 
Olympus E-M1 II« » 5.3 in 3.6 in 2.6 in 20.2 oz 440 Y Sep 2016 1,999 iOlympus E-M1 II
 
Olympus PEN-F« » 4.9 in 2.8 in 1.5 in 15.1 oz 330 n Jan 2016 1,199 iOlympus PEN-F
 
Olympus E-M5 II« » 4.9 in 3.3 in 1.8 in 16.5 oz 310 Y Feb 2015 1,099iOlympus E-M5 II
 
Olympus E-M1« » 5.1 in 3.7 in 2.5 in 17.5 oz 350 Y Sep 2013 1,399iOlympus E-M1
 
Olympus E-M5« » 4.8 in 3.5 in 1.7 in 15.0 oz 360 Y Feb 2012 1,299iOlympus E-M5
 
Panasonic G95« » 5.1 in 3.7 in 3.0 in 18.9 oz 290 Y Apr 2019 999 iPanasonic G95
 
Panasonic GH5« » 5.5 in 3.9 in 3.4 in 25.6 oz 410 Y Jan 2017 1,999 iPanasonic GH5
 
Panasonic FZ300« » 5.2 in 3.6 in 4.6 in 24.4 oz 380 Y Jul 2015 599 iPanasonic FZ300
 
Panasonic GX8« » 5.2 in 3.1 in 2.5 in 17.2 oz 330 Y Jul 2015 1,199iPanasonic GX8
 
Panasonic GH4« » 5.2 in 3.7 in 3.3 in 19.8 oz 500 Y Feb 2014 1,499iPanasonic GH4
 
Panasonic GH3« » 5.2 in 3.7 in 3.2 in 19.4 oz 540 Y Sep 2012 1,299iPanasonic GH3
 
Panasonic G2« » 4.9 in 3.3 in 2.9 in 15.1 oz 360 n Mar 2010 599iPanasonic G2
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

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 E-M5 III was launched at a markedly lower price (by 52 percent) than the GH5s, 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 sensor inside a digital camera is one of the key determinants of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixels in a sensor of the same technological generation. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.

Both cameras under consideration feature a Four Thirds sensor and have a format factor (sometimes also referred to as "crop factor") of 2.0. Within the spectrum of camera sensors, this places the review cameras among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.

Olympus E-M5 III and Panasonic GH5s sensor measures

While the two cameras under review share the same sensor size, the E-M5 III offers a higher resolution of 20.2 megapixels, compared with 9.9 MP of the GH5s. This megapixels advantage translates into a 41 percent gain in linear resolution. On the other hand, these sensor specs imply that the E-M5 III has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.34μm versus 4.77μm for the GH5s). In this context, it should be noted, however, that the E-M5 III is a somewhat more recent model (by 1 year and 9 months) than the GH5s, and its sensor might have benefitted from technological advances during this time that at least partly compensate for the smaller pixel size. Coming back to sensor resolution, it should be mentioned that neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.

The resolution advantage of the Olympus E-M5 III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the E-M5 III for good quality output (200 dots per inch) amounts to 25.9 x 19.4 inch or 65.8 x 49.4 cm, for very good quality (250 dpi) 20.7 x 15.6 inch or 52.7 x 39.5 cm, and for excellent quality (300 dpi) 17.3 x 13 inch or 43.9 x 32.9 cm. The corresponding values for the Panasonic GH5s are 18.4 x 13.5 inch or 46.7 x 34.3 cm for good quality, 14.7 x 10.8 inch or 37.4 x 27.4 cm for very good quality, and 12.3 x 9 inch or 31.2 x 22.9 cm for excellent quality prints.

The E-M5 III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the GH5s, the E-M5 III has the capacity to capture high quality composite images (80MP) 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 III has a native sensitivity range from ISO 200 to ISO 25600, which can be extended to ISO 64-25600. The corresponding ISO settings for the Panasonic Lumix DC-GH5s are ISO 160 to ISO 51200, with the possibility to increase the ISO range to 80-204800.

E-M5 III versus GH5s MP

For many cameras, data on sensor performance has been reported by DXO Mark. 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"). The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
 
Olympus E-M5 III Four Thirds 20.2 5184 38884k/24p........Olympus E-M5 III
 
Panasonic GH5s Four Thirds 9.9 3680 27004K/60p........Panasonic GH5s
 
Olympus E-M1 III Four Thirds 20.2 5184 38884K/30p........Olympus E-M1 III
 
Olympus E-M1X Four Thirds 20.2 5184 38884K/30p........Olympus E-M1X
 
Olympus E-PL9 Four Thirds 15.9 4608 34564K/30p........Olympus E-PL9
 
Olympus E-M1 II Four Thirds 20.2 5184 38884K/30p23.712.8131280Olympus E-M1 II
 
Olympus PEN-F Four Thirds 20.2 5184 38881080/60p23.112.489474Olympus PEN-F
 
Olympus E-M5 II Four Thirds 15.9 4608 34561080/60p23.012.584273Olympus E-M5 II
 
Olympus E-M1 Four Thirds 15.9 4608 34561080/30p23.012.775773Olympus E-M1
 
Olympus E-M5 Four Thirds 15.9 4608 34561080/60i22.812.382671Olympus E-M5
 
Panasonic G95 Four Thirds 20.2 5184 38884K/30p........Panasonic G95
 
Panasonic GH5 Four Thirds 20.2 5184 38884K/60p23.913.080777Panasonic GH5
 
Panasonic FZ300 1/2.3 12.0 4000 30004K/30p19.311.09738Panasonic FZ300
 
Panasonic GX8 Four Thirds 20.2 5184 38884K/30p23.512.680675Panasonic GX8
 
Panasonic GH4 Four Thirds 15.9 4608 34564K/30p23.212.879174Panasonic GH4
 
Panasonic GH3 Four Thirds 15.9 4608 34561080/60p22.712.481271Panasonic GH3
 
Panasonic G2 Four Thirds 12.0 4000 3000720/30p21.210.349353Panasonic G2

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 GH5s provides a faster frame rate than the E-M5 III. It can shoot movie footage at 4K/60p, while the Olympus is limited to 4k/24p.

 

Feature comparison

Beyond 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 GH5s offers a substantially higher resolution than the one in the E-M5 III (3680k vs 2360k dots). The adjacent table lists some of the other core features of the Olympus E-M5 III and Panasonic GH5s along with similar information for a selection of comparators.

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
Camera
Model
 
Olympus E-M5 III2360 n 3.0 1040 swivel Y 1/8000s 10.0 n Y Olympus E-M5 III
 
Panasonic GH5s3680 n 3.2 1620 swivel Y 1/8000s 12.0 n n Panasonic GH5s
 
Olympus E-M1 III2360 n 3.0 1037 swivel Y 1/8000s 18.0 n Y Olympus E-M1 III
 
Olympus E-M1X2360 n 3.0 1037 swivel Y 1/8000s 18.0 n Y Olympus E-M1X
 
Olympus E-PL9none n 3.0 1040 tilting Y 1/4000s 8.6 Y Y Olympus E-PL9
 
Olympus E-M1 II2360 n 3.0 1037 swivel Y 1/8000s 18.0 n Y Olympus E-M1 II
 
Olympus PEN-F2360 n 3.0 1037 swivel Y 1/8000s 10.0 n Y Olympus PEN-F
 
Olympus E-M5 II2360 n 3.0 1037 swivel Y 1/8000s 10.0 n Y Olympus E-M5 II
 
Olympus E-M12360 n 3.0 1037 tilting Y 1/8000s 10.0 n Y Olympus E-M1
 
Olympus E-M51440 n 3.0 610 tilting Y 1/4000s 9.0 n Y Olympus E-M5
 
Panasonic G952360 n 3.0 1240 swivel Y 1/4000s 9.0 Y Y Panasonic G95
 
Panasonic GH53680 n 3.2 1620 swivel Y 1/8000s 12.0 n Y Panasonic GH5
 
Panasonic FZ3001440 n 3.0 1040 swivel Y 1/4000s 12.0 Y Y Panasonic FZ300
 
Panasonic GX82360 n 3.0 1040 swivel Y 1/8000s 10.0 n Y Panasonic GX8
 
Panasonic GH42359 n 3.0 1036 swivel Y 1/8000s 12.0 Y n Panasonic GH4
 
Panasonic GH31746 n 3.0 614 swivel Y 1/4000s 6.0 Y n Panasonic GH3
 
Panasonic G21440 n 3.0 460 swivel Y 1/4000s 2.6 Y n Panasonic G2

One feature that differentiates the E-M5 III and the GH5s is in-body image stabilization (IBIS). The E-M5 III reduces the risk of handshake-induced blur with all attached lenses, while the GH5s has to rely on optical image stabilization in OIS-equipped lenses to achieve the same effect.

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, 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-M5 III and the Panasonic GH5s both have 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.

Concerning the storage of imaging data, both the E-M5 III and the GH5s write their files to SDXC cards. The GH5s features dual card slots, which can be very useful in case a memory card fails. In contrast, the E-M5 III only has one slot. Moreover, both cameras support UHS-II cards (Ultra High Speed data transfer of up to 312 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 III and Panasonic Lumix DC-GH5s and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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
Camera
Model
 
Olympus E-M5 IIIYstereomonoY-micro2.0Y-YOlympus E-M5 III
 
Panasonic GH5sYstereomonoYYfull3.1Y-YPanasonic GH5s
 
Olympus E-M1 IIIYstereomonoYYmicro3.1Y-YOlympus E-M1 III
 
Olympus E-M1XYstereomonoYYmicro3.0Y-YOlympus E-M1X
 
Olympus E-PL9Ystereomono--micro2.0Y-YOlympus E-PL9
 
Olympus E-M1 IIYstereomonoYYmicro3.0Y--Olympus E-M1 II
 
Olympus PEN-FYstereomono--micro2.0Y--Olympus PEN-F
 
Olympus E-M5 IIYstereomonoY-micro2.0Y--Olympus E-M5 II
 
Olympus E-M1YstereomonoY-micro2.0Y--Olympus E-M1
 
Olympus E-M5Ystereomono--mini2.0---Olympus E-M5
 
Panasonic G95YstereomonoYYmicro2.0Y-YPanasonic G95
 
Panasonic GH5YstereomonoYYfull3.1Y-YPanasonic GH5
 
Panasonic FZ300YstereomonoY-mini2.0Y--Panasonic FZ300
 
Panasonic GX8YstereomonoY-micro2.0YY-Panasonic GX8
 
Panasonic GH4YstereomonoYYmicro2.0YY-Panasonic GH4
 
Panasonic GH3YstereomonoYYmini2.0Y--Panasonic GH3
 
Panasonic G2Ystereomono--mini2.0---Panasonic G2

It is notable that the GH5s 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 III lacks such a headphone port.

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

Both the E-M5 III and the GH5s are recent models that are part of the current product line-up. The E-M5 III replaced the earlier Olympus E-M5 II, while the GH5s does not have a direct predecessor. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Olympus and Panasonic websites.

Review summary

So what conclusions can be drawn? Is the Olympus E-M5 III better than the Panasonic GH5s 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 Olympus OM-D E-M5 Mark III:

  • More detail: Offers more megapixels (20.2 vs 9.9MP) with a 42% higher linear resolution.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • More compact: Is smaller (125x85mm vs 139x98mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 246g or 37 percent) and hence easier to carry around.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • More affordable: Was introduced into a lower priced category (52 percent cheaper at launch).
  • More modern: Is somewhat more recent (announced 1 year and 9 months after the GH5s).

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Arguments in favor of the Panasonic Lumix DC-GH5s:

  • Better video: Provides higher movie framerates (4K/60p versus 4k/24p).
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • More detailed viewfinder: Has higher resolution electronic viewfinder (3680k vs 2360k dots).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.76x vs 0.68x).
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1620k vs 1040k dots).
  • Faster burst: Shoots at higher frequency (12 vs 10 flaps/sec) to capture the decisive moment.
  • Longer lasting: Gets more shots (440 versus 310) out of a single battery charge.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • More solid recording: Has a full-sized HDMI port for a sturdy connection to an external recorder.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More heavily discounted: Has been on the market for longer (launched in January 2018).

If the count of relative strengths (bullet points above) is taken as a measure, the GH5s is the clear winner of the contest (12 : 8 points). 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.

E-M5 III 08:12 GH5s

How about other alternatives? Do the specifications of the Olympus E-M5 III and the Panasonic GH5s 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 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 III or the GH5s 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 (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.

Review Scores
  Camera
Model
cam
era
  labs  
dp
re
  view  
e
photo
  zine  
ima
ging
resource
photo
graphy
  blog  
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Camera
Model
 
Olympus E-M5 III+82/1004.5/5..4.5/5 Oct 2019 1,199 iOlympus E-M5 III
 
Panasonic GH5s..84/1004.5/55/54.5/5 Jan 2018 2,499 iPanasonic GH5s
 
Olympus E-M1 III....4.5/5..4/5 Feb 2020 1,799 iOlympus E-M1 III
 
Olympus E-M1Xo..4.5/55/5.. Jan 2019 2,999 iOlympus E-M1X
 
Olympus E-PL9+..4.5/54.5/54/5 Feb 2018 599 iOlympus E-PL9
 
Olympus E-M1 II+ +85/1004.5/55/54.5/5 Sep 2016 1,999 iOlympus E-M1 II
 
Olympus PEN-F..82/1004.5/54.5/55/5 Jan 2016 1,199 iOlympus PEN-F
 
Olympus E-M5 II+ +81/1005/54.5/55/5 Feb 2015 1,099iOlympus E-M5 II
 
Olympus E-M1+ +84/1004.5/54.5/54.5/5 Sep 2013 1,399iOlympus E-M1
 
Olympus E-M5+ +80/1004.5/55/55/5 Feb 2012 1,299iOlympus E-M5
 
Panasonic G95+83/1004.5/54.5/54.5/5 Apr 2019 999 iPanasonic G95
 
Panasonic GH5+ +85/1004.5/55/55/5 Jan 2017 1,999 iPanasonic GH5
 
Panasonic FZ300+ +..4.5/54.5/54.5/5 Jul 2015 599 iPanasonic FZ300
 
Panasonic GX8+82/1004.5/55/54.5/5 Jul 2015 1,199iPanasonic GX8
 
Panasonic GH4+ +85/1005/55/55/5 Feb 2014 1,499iPanasonic GH4
 
Panasonic GH3+ +79/1004.5/55/54.5/5 Sep 2012 1,299iPanasonic GH3
 
Panasonic G2..72/1004/54/54.5/5 Mar 2010 599iPanasonic G2
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, 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 comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

Olympus E-M5 III:
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Panasonic GH5s:
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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 make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Olympus E-M5 III vs Panasonic GH5s

    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 III Panasonic GH5s
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Micro Four Thirds lenses Micro Four Thirds lenses
    Launch Date October 2019 January 2018
    Launch Price USD 1199 USD 2499
    Sensor Specs Olympus E-M5 III Panasonic GH5s
    Sensor Technology CMOS CMOS
    Sensor Format Four Thirds Sensor Four Thirds Sensor
    Sensor Size 17.3 x 13.0 mm 17.3 x 13.0 mm
    Sensor Area 224.9 mm2 224.9 mm2
    Sensor Diagonal 21.6 mm 21.6 mm
    Crop Factor 2.0x 2.0x
    Sensor Resolution 20.2 Megapixels 9.9 Megapixels
    Image Resolution 5184 x 3888 pixels 3680 x 2700 pixels
    Pixel Pitch 3.34 μm 4.77 μm
    Pixel Density 8.96 MP/cm2 4.42 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 4k/24p Video 4K/60p Video
    ISO Setting 200-25600 ISO 160-51200 ISO
    ISO Boost 64-25600 ISO 80-204800 ISO
    Image Processor TruePic VIII Venus 10
    Screen Specs Olympus E-M5 III Panasonic GH5s
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.68x 0.76x
    Viewfinder Resolution 2360k dots 3680k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0 inch 3.2 inch
    LCD Resolution 1040k dots 1620k dots
    LCD Attachment Swivel screen Swivel screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Olympus E-M5 III Panasonic GH5s
    Focus System On-Sensor Phase-detect Contrast-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000/s 1/8000/s
    Continuous Shooting 10 shutter flaps/s 12 shutter flaps/s
    Electronic Shutterup to 1/32000sup to 1/16000s
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationIn-body stabilizationLens stabilization only
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium SDXC cards SDXC cards
    Second Storage Option Single card slot Dual card slots
    UHS card support UHS-II Dual UHS-II
    Connectivity Specs Olympus E-M5 III Panasonic GH5s
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector USB 2.0 USB 3.1
    HDMI Port micro HDMI full HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Bluetooth Support Bluetooth built-in Bluetooth built-in
    Body Specs Olympus E-M5 III Panasonic GH5s
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type BLS-50 DMW-BLF19
    Battery Life (CIPA)310 shots per charge440 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 125 x 85 x 50 mm
    (4.9 x 3.3 x 2.0 in)
    139 x 98 x 87 mm
    (5.5 x 3.9 x 3.4 in)
    Camera Weight 414 g (14.6 oz) 660 g (23.3 oz)

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