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Olympus E-M1 vs Panasonic GX85

The Olympus OM-D E-M1 and the Panasonic Lumix DMC-GX85 (labelled Panasonic GX80 in some countries) are two digital cameras that were officially introduced, respectively, in September 2013 and April 2016. Both the E-M1 and the GX85 are mirrorless interchangeable lens cameras that are equipped with a Four Thirds sensor. The Olympus has a resolution of 15.9 megapixels, whereas the Panasonic provides 15.8 MP.

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

Headline Specifications
Olympus E-M1   Panasonic GX85
Olympus E-M1 Panasonic GX85
Mirrorless system camera Mirrorless system camera
Micro Four Thirds lenses Micro Four Thirds lenses
15.9 MP, Four Thirds Sensor 15.8 MP, Four Thirds Sensor
1080/30p Video 4K/30p Video
ISO 100-25600 ISO 200-25600
Electronic viewfinder (2360k dots) Electronic viewfinder (2765k dots)
3.0" LCD, 1037k dots 3.0" LCD, 1040k dots
Tilting touchscreen Tilting touchscreen
10 shutter flaps per second 8 shutter flaps per second
In-body stabilizationIn-body stabilization
Weathersealed bodyNot weather sealed
350 shots per battery charge290 shots per battery charge
130 x 94 x 63 mm, 497 g 122 x 71 x 44 mm, 426 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus OM-D E-M1 and the Panasonic Lumix DMC-GX85? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

Body comparison

An illustration of the physical size and weight of the Olympus E-M1 and the Panasonic GX85 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth measures are rounded to the nearest millimeter.

Both cameras are available in two different colors (black, silver).

Size Olympus E-M1 vs Panasonic GX85
Compare E-M1 versus GX85 top
Comparison E-M1 or GX85 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic GX85 is notably smaller (29 percent) than the Olympus E-M1. Moreover, the GX85 is markedly lighter (14 percent) than the E-M1. It is worth mentioning in this context that the E-M1 is splash and dust resistant, while the GX85 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. 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-M1 gets 350 shots out of its BLN-1 battery, while the GX85 can take 290 images on a single charge of its DMW-BLG10 power pack.

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, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.

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)
Used
Price
(USD)
Camera
Model
 
Olympus E-M1» 5.1 in 3.7 in 2.5 in 17.5 oz 350 Y Sep 2013 1,399- i Olympus E-M1
 
Panasonic GX85« 4.8 in 2.8 in 1.7 in 15.0 oz 290 n Apr 2016 799 i i Panasonic GX85
 
Olympus E-M1 II« » 5.3 in 3.6 in 2.6 in 20.2 oz 440 Y Sep 2016 1,999 i i Olympus E-M1 II
 
Olympus PEN-F« » 4.9 in 2.8 in 1.5 in 15.1 oz 330 n Jan 2016 1,199 i i Olympus PEN-F
 
Olympus E-M5 II« » 4.9 in 3.3 in 1.8 in 16.5 oz 310 Y Feb 2015 1,099 i i Olympus E-M5 II
 
Olympus E-M10 II« » 4.7 in 3.3 in 1.9 in 13.8 oz 320 n Aug 2015 649- i Olympus E-M10 II
 
Olympus E-PL7« » 4.5 in 2.6 in 1.5 in 12.6 oz 350 n Aug 2014 599- i Olympus E-PL7
 
Olympus E-P5« » 4.8 in 2.7 in 1.5 in 14.8 oz 330 n May 2013 999- i Olympus E-P5
 
Olympus E-M5« » 4.8 in 3.5 in 1.7 in 15.0 oz 360 Y Feb 2012 1,299- i Olympus E-M5
 
Olympus E-PL5« » 4.4 in 2.5 in 1.5 in 11.5 oz 360 n Sep 2012 599- i Olympus E-PL5
 
Olympus E-PM2« » 4.3 in 2.5 in 1.3 in 9.5 oz 360 n Sep 2012 499- i Olympus E-PM2
 
Panasonic GX9« » 4.9 in 2.8 in 1.9 in 14.4 oz 260 n Feb 2018 849 i i Panasonic GX9
 
Panasonic G85« » 5.0 in 3.5 in 2.9 in 17.8 oz 330 Y Sep 2016 899- i Panasonic G85
 
Panasonic GH4« » 5.2 in 3.7 in 3.3 in 19.8 oz 500 Y Feb 2014 1,499- i Panasonic GH4
 
Panasonic GX7« » 4.8 in 2.8 in 2.2 in 14.2 oz 350 n Aug 2013 999- i Panasonic GX7
 
Panasonic GH3« » 5.2 in 3.7 in 3.2 in 19.4 oz 540 Y Sep 2012 1,299- i Panasonic GH3
 
Panasonic GH2« » 4.9 in 3.5 in 3.0 in 15.6 oz 330 n Sep 2010 899- i Panasonic GH2
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The GX85 was launched at a markedly lower price (by 43 percent) than the E-M1, 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. 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. 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-M1 and Panasonic GX85 sensor measures

While the two cameras under review share the same sensor size, the E-M1 offers a slightly higher resolution of 15.9 megapixels, compared with 15.8 MP of the GX85. This megapixels advantage translates into a 0.3 percent gain in linear resolution. On the other hand, these sensor specs imply that the E-M1 has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.76μm versus 3.77μm for the GX85). Moreover, it should be noted that the GX85 is much more recent (by 2 years and 6 months) than the E-M1, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of individual pixels. 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 E-M1 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Olympus OM-D E-M1 has a native sensitivity range from ISO 100 to ISO 25600. The corresponding ISO settings for the Panasonic Lumix DMC-GX85 are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 100-25600.

E-M1 versus GX85 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. The Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

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-M1» Four Thirds 15.9 4608 34561080/30p23.012.775773Olympus E-M1
 
Panasonic GX85« Four Thirds 15.8 4592 34484K/30p22.912.666271Panasonic GX85
 
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-M10 II« » Four Thirds 15.9 4608 34561080/60p23.112.584273Olympus E-M10 II
 
Olympus E-PL7« » Four Thirds 15.9 4608 34561080/30p22.712.487372Olympus E-PL7
 
Olympus E-P5« » Four Thirds 15.9 4608 34561080/30p22.812.489572Olympus E-P5
 
Olympus E-M5« » Four Thirds 15.9 4608 34561080/60i22.812.382671Olympus E-M5
 
Olympus E-PL5« » Four Thirds 15.9 4608 34561080/30p22.812.388972Olympus E-PL5
 
Olympus E-PM2« » Four Thirds 15.9 4608 34561080/30p22.712.293272Olympus E-PM2
 
Panasonic GX9« » Four Thirds 20.2 5184 38884K/30p----Panasonic GX9
 
Panasonic G85« » Four Thirds 15.8 4592 34484K/30p22.812.565671Panasonic G85
 
Panasonic GH4« » Four Thirds 15.9 4608 34564K/30p23.212.879174Panasonic GH4
 
Panasonic GX7« » Four Thirds 15.8 4592 34481080/60p22.612.271870Panasonic GX7
 
Panasonic GH3« » Four Thirds 15.9 4608 34561080/60p22.712.481271Panasonic GH3
 
Panasonic GH2« » Four Thirds 15.9 4608 34561080/60i21.211.365560Panasonic GH2

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 GX85 provides a better video resolution than the E-M1. It can shoot movie footage at 4K/30p, while the Olympus is limited to 1080/30p.

 

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The two cameras under review are similar with respect to both having an electronic viewfinder. However, the one in the GX85 offers a higher resolution than the one in the E-M1 (2765k vs 2360k dots). The following table reports on some other key feature differences and similarities of the Olympus E-M1, the Panasonic GX85, and comparable cameras.

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-M1»2360 n 3.0 1037 tilting Y 1/8000s 10.0 n Y Olympus E-M1
 
Panasonic GX85«2765 n 3.0 1040 tilting Y 1/4000s 8.0 Y Y Panasonic GX85
 
Olympus E-M1 II« »2360 n 3.0 1037 swivel Y 1/8000s 18.0 n Y Olympus E-M1 II
 
Olympus PEN-F« »2360 n 3.0 1037 swivel Y 1/8000s 10.0 n Y Olympus PEN-F
 
Olympus E-M5 II« »2360 n 3.0 1037 swivel Y 1/8000s 10.0 n Y Olympus E-M5 II
 
Olympus E-M10 II« »2360 n 3.0 1040 tilting Y 1/4000s 8.0 Y Y Olympus E-M10 II
 
Olympus E-PL7« »- n 3.0 1037 tilting Y 1/4000s 8.0 n Y Olympus E-PL7
 
Olympus E-P5« »- n 3.0 1037 tilting Y 1/8000s 9.0 Y Y Olympus E-P5
 
Olympus E-M5« »1440 n 3.0 610 tilting Y 1/4000s 9.0 n Y Olympus E-M5
 
Olympus E-PL5« »- n 3.0 460 tilting Y 1/4000s 8.0 n Y Olympus E-PL5
 
Olympus E-PM2« »- n 3.0 460 fixed Y 1/4000s 8.0 n Y Olympus E-PM2
 
Panasonic GX9« »2760 n 3.0 1240 tilting Y 1/4000s 9.0 Y Y Panasonic GX9
 
Panasonic G85« »2360 n 3.0 1040 swivel Y 1/4000s 9.0 Y Y Panasonic G85
 
Panasonic GH4« »2359 n 3.0 1036 swivel Y 1/8000s 12.0 Y n Panasonic GH4
 
Panasonic GX7« »2760 n 3.0 1040 tilting Y 1/8000s 5.0 Y Y Panasonic GX7
 
Panasonic GH3« »1746 n 3.0 614 swivel Y 1/4000s 6.0 Y n Panasonic GH3
 
Panasonic GH2« »1534 n 3.0 460 swivel n 1/4000s 3.0 Y n Panasonic GH2

One difference between the cameras concerns the presence of an on-board flash. The GX85 has one, while the E-M1 does not. While the built-in flash of the GX85 is not very powerful, it can at times be useful as a fill-in light.

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 GX85 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 and the Panasonic GX85 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-M1 and the GX85 write their files to SDXC cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

 

Connectivity comparison

For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Olympus OM-D E-M1 and Panasonic Lumix DMC-GX85 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
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Olympus E-M1»YstereomonoY-micro2.0Y--Olympus E-M1
 
Panasonic GX85«Ystereomono--micro2.0Y--Panasonic GX85
 
Olympus E-M1 II« »YstereomonoYYmicro3.0Y--Olympus E-M1 II
 
Olympus PEN-F« »Ystereomono--micro2.0Y--Olympus PEN-F
 
Olympus E-M5 II« »YstereomonoY-micro2.0Y--Olympus E-M5 II
 
Olympus E-M10 II« »Ystereomono--micro2.0Y--Olympus E-M10 II
 
Olympus E-PL7« »Ystereomono--micro2.0Y--Olympus E-PL7
 
Olympus E-P5« »Ystereomono--micro2.0Y--Olympus E-P5
 
Olympus E-M5« »Ystereomono--mini2.0---Olympus E-M5
 
Olympus E-PL5« »Ystereomono--mini2.0---Olympus E-PL5
 
Olympus E-PM2« »Ystereomono--mini2.0---Olympus E-PM2
 
Panasonic GX9« »Ystereomono--micro2.0Y-YPanasonic GX9
 
Panasonic G85« »YstereomonoY-micro2.0Y--Panasonic G85
 
Panasonic GH4« »YstereomonoYYmicro2.0YY-Panasonic GH4
 
Panasonic GX7« »Ystereomono--mini2.0YY-Panasonic GX7
 
Panasonic GH3« »YstereomonoYYmini2.0Y--Panasonic GH3
 
Panasonic GH2« »YstereomonoY-mini2.0---Panasonic GH2

It is notable that the E-M1 has a microphone port, which is missing on the GX85. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.

Studio photographers will appreciate that the Olympus E-M1 (unlike the GX85) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The GX85 is a recent model that features in the current product line-up of Panasonic. In contrast, the E-M1 has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the E-M1 was succeeded by the Olympus E-M1 II. 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 is the bottom line? Is there a clear favorite between the Olympus E-M1 and the Panasonic GX85? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

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

  • 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 (0.74x vs 0.70x).
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (10 vs 8 flaps/sec) to capture the decisive moment.
  • Longer lasting: Can take more shots (350 versus 290) on a single battery charge.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • More heavily discounted: Has been available for much longer (launched in September 2013).

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Arguments in favor of the Panasonic Lumix DMC-GX85:

  • Better video: Provides higher definition movie capture (4K/30p vs 1080/30p).
  • More detailed viewfinder: Has higher resolution electronic viewfinder (2765k vs 2360k dots).
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • More compact: Is smaller (122x71mm vs 130x94mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 71g or 14 percent) and is thus easier to take along.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • More affordable: Was introduced into a lower priced category (43 percent cheaper at launch).
  • More modern: Reflects 2 years and 6 months of technical progress since the E-M1 launch.

If the count of individual advantages (bullet points above) is taken as a guide, the E-M1 comes out slightly ahead of the GX85 (9 : 8 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-M1 09:08 GX85

How about other alternatives? Do the specifications of the Olympus E-M1 and the Panasonic GX85 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 says little about, for example, the shooting experience and imaging performance of the E-M1 and the GX85 in practical situations. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.

Expert reviews

This is where reviews by experts come in. The following table reports the overall ratings of the cameras as published by some of the major 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
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Olympus E-M1»+ +84/1004.5/54.5/54.5/5 Sep 2013 1,399- i Olympus E-M1
 
Panasonic GX85«+ +82/1005/54.5/55/5 Apr 2016 799 i i Panasonic GX85
 
Olympus E-M1 II« »+ +85/1004.5/55/54.5/5 Sep 2016 1,999 i i Olympus E-M1 II
 
Olympus PEN-F« »-82/1004.5/54.5/55/5 Jan 2016 1,199 i i Olympus PEN-F
 
Olympus E-M5 II« »+ +81/1005/54.5/55/5 Feb 2015 1,099 i i Olympus E-M5 II
 
Olympus E-M10 II« »+ +80/1005/55/55/5 Aug 2015 649- i Olympus E-M10 II
 
Olympus E-PL7« »+-5/54.5/54/5 Aug 2014 599- i Olympus E-PL7
 
Olympus E-P5« »+ +78/1004.5/54.5/55/5 May 2013 999- i Olympus E-P5
 
Olympus E-M5« »+ +80/1004.5/55/55/5 Feb 2012 1,299- i Olympus E-M5
 
Olympus E-PL5« »+ +-4.5/54.5/54.5/5 Sep 2012 599- i Olympus E-PL5
 
Olympus E-PM2« »-77/1005/54.5/54.5/5 Sep 2012 499- i Olympus E-PM2
 
Panasonic GX9« »+84/1004.5/54.5/54.5/5 Feb 2018 849 i i Panasonic GX9
 
Panasonic G85« »+ +84/1005/54.5/54.5/5 Sep 2016 899- i Panasonic G85
 
Panasonic GH4« »+ +85/1005/55/55/5 Feb 2014 1,499- i Panasonic GH4
 
Panasonic GX7« »+79/1005/54.5/55/5 Aug 2013 999- i Panasonic GX7
 
Panasonic GH3« »+ +79/1004.5/55/54.5/5 Sep 2012 1,299- i Panasonic GH3
 
Panasonic GH2« »+ +79/1004.5/54.5/55/5 Sep 2010 899- i Panasonic GH2
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (-) not available.

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. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Olympus E-M1:
Check Ebay offers
Panasonic GX85:
Check Amazon price

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-M1 vs Panasonic GX85

    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-M1 Panasonic GX85
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Micro Four Thirds lenses Micro Four Thirds lenses
    Launch Date September 2013 April 2016
    Launch Price USD 1399 USD 799
    Sensor Specs Olympus E-M1 Panasonic GX85
    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 15.9 Megapixels 15.8 Megapixels
    Image Resolution 4608 x 3456 pixels 4592 x 3448 pixels
    Pixel Pitch 3.76 μm 3.77 μm
    Pixel Density 7.08 MP/cm2 7.04 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 1080/30p Video 4K/30p Video
    ISO Setting 100-25600 ISO 200-25600 ISO
    ISO Boost no Enhancement 100-25600 ISO
    Image Processor TruePIC VII Venus
    DXO Sensor Quality (score) 73 71
    DXO Color Depth (bits) 23.0 22.9
    DXO Dynamic Range (EV) 12.7 12.6
    DXO Low Light (ISO) 757 662
    Screen Specs Olympus E-M1 Panasonic GX85
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.74x 0.70x
    Viewfinder Resolution 2360k dots 2765k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0 inch 3.0 inch
    LCD Resolution 1037k dots 1040k dots
    LCD Attachment Tilting screen Tilting screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Olympus E-M1 Panasonic GX85
    Autofocus System On-Sensor Phase-detect Contrast-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000/s 1/4000/s
    Continuous Shooting 10 shutter flaps/s 8 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/16000s
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash no On-Board Flash Build-in Flash
    Storage Medium SDXC cards SDXC cards
    Second Storage Option Single card slot Single card slot
    UHS card support UHS-I UHS-I
    Connectivity Specs Olympus E-M1 Panasonic GX85
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI micro HDMI
    Microphone Port External MIC port no MIC socket
    Wifi Support Wifi built-in Wifi built-in
    Body Specs Olympus E-M1 Panasonic GX85
    Environmental SealingWeathersealed bodyNot weather sealed
    Battery Type BLN-1 DMW-BLG10
    Battery Life (CIPA)350 shots per charge290 shots per charge
    Body Dimensions 130 x 94 x 63 mm
    (5.1 x 3.7 x 2.5 in)
    122 x 71 x 44 mm
    (4.8 x 2.8 x 1.7 in)
    Camera Weight 497 g (17.5 oz) 426 g (15.0 oz)

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