Olympus E-M1 II vs Panasonic GX8
The Olympus OM-D E-M1 Mark II and the Panasonic Lumix DMC-GX8 are two enthusiast cameras that were announced, respectively, in September 2016 and July 2015. Both the E-M1 II and the GX8 are mirrorless interchangeable lens cameras that are equipped with a Four Thirds sensor. Both cameras offer a resolution of 20.2 megapixels.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus OM-D E-M1 Mark II and the Panasonic Lumix DMC-GX8? 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.
The side-by-side display below illustrates the physical size and weight of the Olympus E-M1 II and the Panasonic GX8. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth measures are rounded to the nearest millimeter.
The GX8 can be obtained in two different colors (black, silver), while the E-M1 II is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic GX8 is notably smaller (15 percent) than the Olympus E-M1 II. Moreover, the GX8 is markedly lighter (15 percent) than the E-M1 II. 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.
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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.
|1.||Olympus E-M1 II||134 mm||91 mm||67 mm||574 g||440||Y||Sep 2016||1,999|
|2.||Panasonic GX8||133 mm||78 mm||63 mm||487 g||330||Y||Jul 2015||1,199|
|3.||Olympus E-M1 III||134 mm||91 mm||69 mm||580 g||420||Y||Feb 2020||1,799|
|4.||Olympus PEN-F||125 mm||72 mm||37 mm||427 g||330||n||Jan 2016||1,199|
|5.||Olympus E-M5 II||124 mm||85 mm||45 mm||469 g||310||Y||Feb 2015||1,099|
|6.||Olympus E-M1||130 mm||94 mm||63 mm||497 g||350||Y||Sep 2013||1,399|
|7.||Panasonic GH5 II||139 mm||98 mm||87 mm||727 g||400||Y||May 2021||1,699|
|8.||Panasonic G95||130 mm||94 mm||77 mm||536 g||290||Y||Apr 2019||999|
|9.||Panasonic GX9||124 mm||72 mm||47 mm||407 g||260||n||Feb 2018||849|
|10.||Panasonic G9||137 mm||97 mm||92 mm||658 g||400||Y||Nov 2017||1,699|
|11.||Panasonic GH5||139 mm||98 mm||87 mm||725 g||410||Y||Jan 2017||1,999|
|12.||Panasonic G85||128 mm||89 mm||74 mm||505 g||330||Y||Sep 2016||899|
|13.||Panasonic GX7||123 mm||71 mm||55 mm||402 g||350||n||Aug 2013||999|
|14.||Sony A7 II||127 mm||96 mm||60 mm||599 g||350||Y||Nov 2014||1,999|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will naturally be influenced heavily by the price. 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 GX8 was launched at a markedly lower price (by 40 percent) than the E-M1 II, 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
The imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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 are more costly to manufacture and tend to lead to bigger and heavier cameras 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.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors.
The two cameras under review do not only share the same sensor size, but also offer an identical resolution of 20.2 megapixels. This similarity in sensor specs implies that both the E-M1 II and the GX8 have the same pixel density, as well as the same pixel size. It should, however, be noted that the E-M1 II is a somewhat more recent model (by 1 year and 2 months) than the GX8, and its sensor might have benefitted from technological advances during this time. Coming back to sensor resolution, it should be mentioned that the E-M1 II has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The E-M1 II has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
Unlike the GX8, the E-M1 II has the capacity to capture high quality composite images (50MP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).
The Olympus OM-D E-M1 Mark II 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 DMC-GX8 are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 100-25600.
For many cameras, data on sensor performance has been reported by DXO Mark. 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. Of the two cameras under review, the E-M1 II has a notably higher overall DXO score than the GX8 (overall score 5 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 0.2 bits higher color depth, 0.2 EV in additional dynamic range, and 0.7 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|1.||Olympus E-M1 II||Four Thirds||20.2||5184||3888||4K/30p||23.7||12.8||1312||80|
|2.||Panasonic GX8||Four Thirds||20.2||5184||3888||4K/30p||23.5||12.6||806||75|
|3.||Olympus E-M1 III||Four Thirds||20.2||5184||3888||4K/30p||..||..||..||..|
|4.||Olympus PEN-F||Four Thirds||20.2||5184||3888||1080/60p||23.1||12.4||894||74|
|5.||Olympus E-M5 II||Four Thirds||15.9||4608||3456||1080/60p||23.0||12.5||842||73|
|6.||Olympus E-M1||Four Thirds||15.9||4608||3456||1080/30p||23.0||12.7||757||73|
|7.||Panasonic GH5 II||Four Thirds||20.2||5184||3888||4K/60p||23.7||13.1||1136||79|
|8.||Panasonic G95||Four Thirds||20.2||5184||3888||4K/30p||..||..||..||..|
|9.||Panasonic GX9||Four Thirds||20.2||5184||3888||4K/30p||..||..||..||..|
|10.||Panasonic G9||Four Thirds||20.2||5184||3888||4K/60p||..||..||..||..|
|11.||Panasonic GH5||Four Thirds||20.2||5184||3888||4K/60p||23.9||13.0||807||77|
|12.||Panasonic G85||Four Thirds||15.8||4592||3448||4K/30p||22.8||12.5||656||71|
|13.||Panasonic GX7||Four Thirds||15.8||4592||3448||1080/60p||22.6||12.2||718||70|
|14.||Sony A7 II||Full Frame||24.0||6000||4000||1080/60p||24.9||13.6||2449||90|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, and both provide the same movie specifications (4K/30p).
Apart from body and sensor, cameras can and do differ across a range of features. The E-M1 II and the GX8 are similar in the sense that both feature an electronic viewfinder, which is helpful when framing images in bright sunlight. Moreover, their viewfinders offer an identical resolution of 2360k dots. The following table reports on some other key feature differences and similarities of the Olympus E-M1 II, the Panasonic GX8, and comparable cameras.
|1.||Olympus E-M1 II||2360||n||3.0 / 1037||swivel||Y||1/8000s||18.0||n||Y|
|2.||Panasonic GX8||2360||n||3.0 / 1040||swivel||Y||1/8000s||10.0||n||Y|
|3.||Olympus E-M1 III||2360||n||3.0 / 1037||swivel||Y||1/8000s||18.0||n||Y|
|4.||Olympus PEN-F||2360||n||3.0 / 1037||swivel||Y||1/8000s||10.0||n||Y|
|5.||Olympus E-M5 II||2360||n||3.0 / 1037||swivel||Y||1/8000s||10.0||n||Y|
|6.||Olympus E-M1||2360||n||3.0 / 1037||tilting||Y||1/8000s||10.0||n||Y|
|7.||Panasonic GH5 II||3680||n||3.0 / 1840||swivel||Y||1/8000s||12.0||n||Y|
|8.||Panasonic G95||2360||n||3.0 / 1240||swivel||Y||1/4000s||9.0||Y||Y|
|9.||Panasonic GX9||2760||n||3.0 / 1240||tilting||Y||1/4000s||9.0||Y||Y|
|10.||Panasonic G9||3680||Y||3.0 / 1040||swivel||Y||1/8000s||20.0||n||Y|
|11.||Panasonic GH5||3680||n||3.2 / 1620||swivel||Y||1/8000s||12.0||n||Y|
|12.||Panasonic G85||2360||n||3.0 / 1040||swivel||Y||1/4000s||9.0||Y||Y|
|13.||Panasonic GX7||2760||n||3.0 / 1040||tilting||Y||1/8000s||5.0||Y||Y|
|14.||Sony A7 II||2400||n||3.0 / 1230||tilting||n||1/8000s||5.0||n||Y|
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-M1 II and the Panasonic GX8 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 II and the GX8 write their files to SDXC cards. The E-M1 II features dual card slots, which can be very useful in case a memory card fails. In contrast, the GX8 only has one slot. The E-M1 II supports UHS-II cards (on its first slot), while the GX8 can use UHS-I cards.
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 Mark II and Panasonic Lumix DMC-GX8 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Olympus E-M1 II||Y||stereo / mono||Y||Y||micro||3.0||Y||-||-|
|2.||Panasonic GX8||Y||stereo / mono||Y||-||micro||2.0||Y||Y||-|
|3.||Olympus E-M1 III||Y||stereo / mono||Y||Y||micro||3.1||Y||-||Y|
|4.||Olympus PEN-F||Y||stereo / mono||-||-||micro||2.0||Y||-||-|
|5.||Olympus E-M5 II||Y||stereo / mono||Y||-||micro||2.0||Y||-||-|
|6.||Olympus E-M1||Y||stereo / mono||Y||-||micro||2.0||Y||-||-|
|7.||Panasonic GH5 II||Y||stereo / mono||Y||Y||full||3.2||Y||-||Y|
|8.||Panasonic G95||Y||stereo / mono||Y||Y||micro||2.0||Y||-||Y|
|9.||Panasonic GX9||Y||stereo / mono||-||-||micro||2.0||Y||-||Y|
|10.||Panasonic G9||Y||stereo / mono||Y||Y||full||3.0||Y||-||Y|
|11.||Panasonic GH5||Y||stereo / mono||Y||Y||full||3.1||Y||-||Y|
|12.||Panasonic G85||Y||stereo / mono||Y||-||micro||2.0||Y||-||-|
|13.||Panasonic GX7||Y||stereo / mono||-||-||mini||2.0||Y||Y||-|
|14.||Sony A7 II||Y||stereo / mono||Y||Y||micro||2.0||Y||Y||-|
It is notable that the E-M1 II has a headphone jack, which is not present on the GX8 This port makes it possible to attach external headphones and monitor the quality of sound during the recording process.
Studio photographers will appreciate that the Olympus E-M1 II (unlike the GX8) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
The E-M1 II is a recent model that features in the current product line-up of Olympus. In contrast, the GX8 has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the GX8 was succeeded by the Panasonic GX9. 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.
So what is the bottom line? Is there a clear favorite between the Olympus E-M1 II and the Panasonic GX8? Which camera is better? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Olympus OM-D E-M1 Mark II:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- High quality composites: Can combine several shots after pixel-shifting its sensor.
- Better image quality: Scores markedly higher (5 points) in the DXO overall assessment.
- Better low-light sensitivity: Requires less light for good images (0.7 stops ISO advantage).
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- Faster burst: Shoots at higher frequency (18 vs 10 flaps/sec) to capture the decisive moment.
- Longer lasting: Can take more shots (440 versus 330) on a single battery charge.
- Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
- More modern: Is somewhat more recent (announced 1 year and 2 months after the GX8).
Reasons to prefer the Panasonic Lumix DMC-GX8:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.77x vs 0.74x).
- More compact: Is smaller (133x78mm vs 134x91mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 87g or 15 percent) and is thus easier to take along.
- Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
- More affordable: Was introduced into a lower priced category (40 percent cheaper at launch).
- More heavily discounted: Has been on the market for longer (launched in July 2015).
If the count of relative strengths (bullet points above) is taken as a measure, the E-M1 II is the clear winner of the match-up (13 : 7 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 wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.
How about other alternatives? Do the specifications of the Olympus E-M1 II and the Panasonic GX8 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 E-M1 II or the GX8. 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.
This is where reviews by experts come in. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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.
|1.||Olympus E-M1 II||5/5||+ +||5/5||85/100||4.5/5||4.5/5||Sep 2016||1,999|
|2.||Panasonic GX8||5/5||+||..||82/100||4.5/5||4.5/5||Jul 2015||1,199|
|3.||Olympus E-M1 III||5/5||..||5/5||83/100||4.5/5||4/5||Feb 2020||1,799|
|4.||Olympus PEN-F||..||..||4/5||82/100||4.5/5||5/5||Jan 2016||1,199|
|5.||Olympus E-M5 II||5/5||+ +||4.5/5||81/100||5/5||5/5||Feb 2015||1,099|
|6.||Olympus E-M1||5/5||+ +||..||84/100||4.5/5||4.5/5||Sep 2013||1,399|
|7.||Panasonic GH5 II||4.5/5||..||4.5/5||..||4.5/5||5/5||May 2021||1,699|
|8.||Panasonic G95||4.5/5||+||4.5/5||83/100||4.5/5||4.5/5||Apr 2019||999|
|9.||Panasonic GX9||4/5||+||4/5||84/100||4.5/5||4.5/5||Feb 2018||849|
|10.||Panasonic G9||..||+ +||5/5||85/100||5/5||5/5||Nov 2017||1,699|
|11.||Panasonic GH5||4.5/5||+ +||..||85/100||4.5/5||5/5||Jan 2017||1,999|
|12.||Panasonic G85||..||+ +||..||84/100||5/5||4.5/5||Sep 2016||899|
|13.||Panasonic GX7||4/5||+||..||79/100||5/5||5/5||Aug 2013||999|
|14.||Sony A7 II||5/5||+||4/5||82/100||4.5/5||5/5||Nov 2014||1,999|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The review scores listed above should be treated with care, 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 comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.
Other camera comparisons
Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
- Canon 1D Mark III vs Olympus E-M1 II
- Canon 500D vs Olympus E-M1 II
- Canon 90D vs Panasonic GX8
- Canon G7 X Mark II vs Panasonic GX8
- Canon XC10 vs Panasonic GX8
- Leica V-LUX 3 vs Olympus E-M1 II
- Nikon D200 vs Olympus E-M1 II
- Nikon D5600 vs Olympus E-M1 II
- Nikon Z5 vs Panasonic GX8
- Olympus E-3 vs Olympus E-M1 II
- Panasonic GX8 vs Panasonic LX5
- Panasonic GX8 vs Sony RX100 IV
Specifications: Olympus E-M1 II vs Panasonic GX8
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 Model||Olympus E-M1 II||Panasonic GX8|
|Camera Type||Mirrorless system camera||Mirrorless system camera|
|Camera Lens||Micro Four Thirds lenses||Micro Four Thirds lenses|
|Launch Date||September 2016||July 2015|
|Launch Price||USD 1,999||USD 1,199|
|Sensor Specs||Olympus E-M1 II||Panasonic GX8|
|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|
|Sensor Resolution||20.2 Megapixels||20.2 Megapixels|
|Image Resolution||5184 x 3888 pixels||5184 x 3888 pixels|
|Pixel Pitch||3.34 μm||3.34 μm|
|Pixel Density||8.96 MP/cm2||8.96 MP/cm2|
|Moiré control||no AA filter||Anti-Alias filter|
|Movie Capability||4K/30p Video||4K/30p Video|
|ISO Setting||200 - 25,600 ISO||200 - 25,600 ISO|
|ISO Boost||64 - 25,600 ISO||100 - 25,600 ISO|
|Image Processor||TruePic VIII||Venus|
|DXO Sensor Quality (score)||80||75|
|DXO Color Depth (bits)||23.7||23.5|
|DXO Dynamic Range (EV)||12.8||12.6|
|DXO Low Light (ISO)||1312||806|
|Screen Specs||Olympus E-M1 II||Panasonic GX8|
|Viewfinder Type||Electronic viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||2360k dots||2360k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1037k dots||1040k dots|
|LCD Attachment||Swivel screen||Swivel screen|
|Shooting Specs||Olympus E-M1 II||Panasonic GX8|
|Focus System||On-Sensor Phase-detect||Contrast-detect AF|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/8000s||1/8000s|
|Continuous Shooting||18 shutter flaps/s||10 shutter flaps/s|
|Electronic Shutter||up to 1/32000s||up to 1/16000s|
|Time-Lapse Photography||Intervalometer built-in||Intervalometer built-in|
|Image Stabilization||In-body stabilization||In-body stabilization|
|Fill Flash||no On-Board Flash||no On-Board Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Dual card slots||Single card slot|
|UHS card support||Single UHS-II||UHS-I|
|Connectivity Specs||Olympus E-M1 II||Panasonic GX8|
|Studio Flash||PC Sync socket||no PC Sync|
|USB Connector||USB 3.0||USB 2.0|
|HDMI Port||micro HDMI||micro HDMI|
|Microphone Port||External MIC port||External MIC port|
|Headphone Socket||Headphone port||no Headphone port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Near-Field Communication||no NFC||NFC built-in|
|Body Specs||Olympus E-M1 II||Panasonic GX8|
|Environmental Sealing||Weathersealed body||Weathersealed body|
|Battery Life (CIPA)||440 shots per charge||330 shots per charge|
134 x 91 x 67 mm
(5.3 x 3.6 x 2.6 in)
133 x 78 x 63 mm
(5.2 x 3.1 x 2.5 in)
|Camera Weight||574 g (20.2 oz)||487 g (17.2 oz)|
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