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Panasonic GX8 versus Fujifilm X-T20

The Panasonic Lumix DMC-GX8 and the Fujifilm X-T20 are two digital cameras that were revealed to the public, respectively, in July 2015 and January 2017. Both the GX8 and the X-T20 are mirrorless interchangeable lens cameras that are based on a Four Thirds (GX8) and an APS-C (X-T20) sensor. The Panasonic has a resolution of 20.2 megapixel, whereas the Fujifilm provides 24 MP. Read on to find out how these two cameras compare with respect to their size, their sensors, their features, and their reception by expert reviewers.

Body comparison: Panasonic GX8 vs Fujifilm X-T20

The physical size and weight of the Panasonic GX8 and the Fujifilm X-T20 are illustrated in the side-by-side display below. Three consecutive views from the front, the top, and the rear side are shown. All size dimensions are rounded to the nearest millimeter. You can also use the toggle button to switch to a percentage comparison if you prefer that the measures are being expressed in relative terms (in this case, the camera on the left – the GX8 – represents 100 percent across all the size and weight measures).

Snapsort Panasonic GX8 vs Fujifilm X-T20
Compare GX8 versus X-T20 top
Compare GX8 and X-T20 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Fujifilm X-T20 is notably smaller (6 percent) than the Panasonic GX8. Moreover, the X-T20 is markedly lighter (21 percent) than the GX8. It is worth mentioning in this context that the GX8 is splash and dust resistant, while the X-T20 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 find an overview of optics for the two cameras in the Micro Four Thirds Lens Catalog (GX8) and the Fujinon X Lens Catalog (X-T20). 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 GX8 gets 330 shots out of its DMW-BLC12 battery, while the X-T20 can take 350 images on a single charge of its NP-W126S power pack.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons 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)
Panasonic GX8» 5.2 in 3.1 in 2.5 in 17.2 oz 330 Y Jul 2015 1,199- i
Fujifilm X-T20« 4.6 in 3.3 in 1.6 in 13.5 oz 350 n Jan 2017 899 i i
Canon M5« » 4.6 in 3.5 in 2.4 in 15.1 oz 295 n Sep 2016 979 i i
Fujifilm X-T100« » 4.8 in 3.3 in 1.9 in 15.8 oz 430 n May 2018 599 i i
Fujifilm X-A5« » 4.6 in 2.7 in 1.6 in 12.7 oz 450 n Jan 2018 399 i i
Fujifilm X-E3« » 4.8 in 2.9 in 1.7 in 11.9 oz 350 n Sep 2017 899 i i
Fujifilm X-T10« » 4.6 in 3.3 in 1.6 in 13.4 oz 350 n May 2015 799- i
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 PEN-F« » 4.9 in 2.8 in 1.5 in 15.1 oz 330 n Jan 2016 1,199 i i
Olympus E-M5 II« » 4.9 in 3.3 in 1.8 in 16.5 oz 310 Y Feb 2015 1,099 i i
Panasonic GX9« » 4.9 in 2.8 in 1.9 in 14.4 oz 260 n Feb 2018 849 i i
Panasonic GH5« » 5.5 in 3.9 in 3.4 in 25.6 oz 410 Y Jan 2017 1,999 i i
Panasonic G85« » 5.0 in 3.5 in 2.9 in 17.8 oz 330 Y Sep 2016 899 i i
Panasonic GX85« » 4.8 in 2.8 in 1.7 in 15.0 oz 290 n Apr 2016 799 i i
Panasonic GX7« » 4.8 in 2.8 in 2.2 in 14.2 oz 350 n Aug 2013 999- i
Sony A6300« » 4.7 in 2.6 in 1.9 in 14.3 oz 400 Y Feb 2016 999- i
Sony A6500« » 4.7 in 2.6 in 2.1 in 16.0 oz 350 Y Oct 2016 1,399 i i

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 X-T20 was launched at a somewhat lower price (by 25 percent) than the GX8, which makes it more attractive for photographers on a tight budget. 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.

 

Sensor comparison: Panasonic GX8 vs Fujifilm X-T20

The size of the imaging sensor is a crucial determinant of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color depth than smaller pixel-units in a sensor of the same technological generation. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Panasonic GX8 features a Four Thirds sensor and the Fujifilm X-T20 an APS-C sensor. The sensor area in the X-T20 is 64 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 GX8 has a native 4:3 aspect ratio, while the one in the X-T20 offers a 3:2 aspect.

Panasonic GX8 and Fujifilm X-T20 sensor measures

With 24MP, the X-T20 offers a higher resolution than the GX8 (20.2MP), but the X-T20 nevertheless has larger individual pixels (pixel pitch of 3.92μm versus 3.34μm for the GX8) due to its larger sensor. Moreover, the X-T20 is a somewhat more recent model (by 1 year and 6 months) than the GX8, and its sensor might 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 X-T20 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

GX8 versus X-T20 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

Sensor Characteristics
  Camera Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Panasonic GX8» Four Thirds 20.2 5184 38884K/30p23.512.680675
Fujifilm X-T20« APS-C 24.0 6000 40004K/30p----
Canon M5« » APS-C 24.0 6000 40001080/60p23.412.4126277
Fujifilm X-T100« » APS-C 24.0 6000 40004K/15p----
Fujifilm X-A5« » APS-C 24.0 6000 40004K/15p----
Fujifilm X-E3« » APS-C 24.0 6000 40004K/30p----
Fujifilm X-T10« » APS-C 16.0 4896 32641080/60p----
Olympus E-M1 II« » Four Thirds 20.2 5184 38884K/30p23.712.8131280
Olympus PEN-F« » Four Thirds 20.2 5184 38881080/60p23.112.489474
Olympus E-M5 II« » Four Thirds 15.9 4608 34561080/60p23.012.584273
Panasonic GX9« » Four Thirds 20.2 5184 38884K/30p----
Panasonic GH5« » Four Thirds 20.2 5184 38884K/60p23.913.080777
Panasonic G85« » Four Thirds 15.8 4592 34484K/30p22.812.565671
Panasonic GX85« » Four Thirds 15.8 4592 34484K/30p22.912.666271
Panasonic GX7« » Four Thirds 15.8 4592 34481080/60p22.612.271870
Sony A6300« » APS-C 24.0 6000 40004K/30p24.413.7143785
Sony A6500« » APS-C 24.0 6000 40004K/30p24.513.7140585

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).

 

Feature comparison: Panasonic GX8 vs Fujifilm X-T20

Beyond body and sensor, cameras can and do differ across a range of features. The GX8 and the X-T20 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 adjacent table lists some of the other core features of the Panasonic GX8 and Fujifilm X-T20 along with similar information for a selection of comparators. If you need more detail on the specs, you can find comprehensive listings, for example, in the dpreview camera hub.

Core Features
  Camera Viewfinder
(Type or
'000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec))
Build-in
Flash
(yes/no)
Build-in
Image
Stab
Panasonic GX8»2360 n 3.0 1040 swivel Y 8000 10.0 n Y
Fujifilm X-T20«2360 n 3.0 1040 tilting Y 4000 8.0 Y n
Canon M5« »2360 n 3.2 1620 tilting Y 4000 9.0 Y n
Fujifilm X-T100« »2360 n 3.0 1040 full-flex Y 4000 6.0 Y n
Fujifilm X-A5« »- n 3.0 1040 tilting Y 4000 6.0 Y n
Fujifilm X-E3« »2360 n 3.0 1040 fixed Y 4000 8.0 n n
Fujifilm X-T10« »2360 n 3.0 920 tilting n 4000 8.0 Y n
Olympus E-M1 II« »2360 n 3.0 1037 swivel Y 8000 18.0 n Y
Olympus PEN-F« »2360 n 3.0 1037 swivel Y 8000 10.0 n Y
Olympus E-M5 II« »2360 n 3.0 1037 swivel Y 8000 10.0 n Y
Panasonic GX9« »2760 n 3.0 1240 tilting Y 4000 9.0 Y Y
Panasonic GH5« »3680 n 3.2 1620 swivel Y 8000 12.0 n Y
Panasonic G85« »2360 n 3.0 1040 swivel Y 4000 9.0 Y Y
Panasonic GX85« »2765 n 3.0 1040 tilting Y 4000 8.0 Y Y
Panasonic GX7« »2760 n 3.0 1040 tilting Y 8000 5.0 Y Y
Sony A6300« »2300 n 3.0 922 tilting n 4000 11.0 Y n
Sony A6500« »2300 n 3.0 922 tilting Y 4000 11.0 Y Y

The X-T20 is a current model that online retailers, such as amazon, will have in stock. In contrast, the GX8 has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the GX8 was succeeded by the Panasonic GX9.

Review summary: Panasonic GX8 vs Fujifilm X-T20

So what conclusions can be drawn? Is there a clear favorite between the Panasonic GX8 and the Fujifilm X-T20? The listing below highlights the relative strengths of the two models.

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Arguments in favor of the Panasonic Lumix DMC-GX8:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • More flexible LCD: Has swivel screen for odd-angle shots in portrait or landscape orientation.
  • Faster shutter: Has higher mechanical shutter speed (8000/sec vs 4000/sec) to freeze action.
  • Faster burst: Shoots at higher frequency (10 vs 8 flaps/sec) to capture the decisive moment.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • Sharper images: Has hand-shake reducing image stabilization build-in.
  • More heavily discounted: Has been on the market for longer (launched in July 2015).

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Advantages of the Fujifilm X-T20:

  • More detail: Has more megapixels (24 vs 20.2MP), which boosts linear resolution by 11%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Is equipped with a larger and more technologically advanced sensor.
  • Less heavy: Has a lower weight (by 104g or 21 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 released into a lower priced segment (25 percent cheaper at launch).
  • More modern: Was introduced somewhat (1 year and 6 months) more recently.

If the count of relative strengths (bullet points above) is taken as a measure, the match-up finishes in a tie (7 points each). 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.

GX8 07:07 X-T20

In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it says nothing about, for example, the handling, responsiveness, and overall imaging quality of the GX8 and the X-T20 in practical situations. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased. This is where reviews by experts come in. The table below summarizes the assessments of some of the best known camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). The full reviews are available by clicking on the site logo in the table header.

Review scores
  Camera cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Panasonic GX8»Rec82/1004.5/55/54.5/5 Jul 2015 1,199- i
Fujifilm X-T20«HiRec82/1005/5-4.5/5 Jan 2017 899 i i
Canon M5« »Rec82/1004/54.5/54/5 Sep 2016 979 i i
Fujifilm X-T100« »----- May 2018 599 i i
Fujifilm X-A5« »----3.5/5 Jan 2018 399 i i
Fujifilm X-E3« »Rec84/1004.5/54.5/54.5/5 Sep 2017 899 i i
Fujifilm X-T10« »HiRec80/1005/54/55/5 May 2015 799- i
Olympus E-M1 II« »HiRec85/1004.5/55/54.5/5 Sep 2016 1,999 i i
Olympus PEN-F« »-82/1004.5/54.5/55/5 Jan 2016 1,199 i i
Olympus E-M5 II« »HiRec81/1005/54.5/55/5 Feb 2015 1,099 i i
Panasonic GX9« »Rec-4.5/5-4.5/5 Feb 2018 849 i i
Panasonic GH5« »HiRec85/1004.5/55/55/5 Jan 2017 1,999 i i
Panasonic G85« »HiRec84/1005/54.5/54.5/5 Sep 2016 899 i i
Panasonic GX85« »HiRec82/1005/54.5/55/5 Apr 2016 799 i i
Panasonic GX7« »Rec79/1005/54.5/55/5 Aug 2013 999- i
Sony A6300« »Rec85/1005/55/55/5 Feb 2016 999- i
Sony A6500« »HiRec85/1004.5/55/54.5/5 Oct 2016 1,399 i i

The review scores listed above should be treated with care, though. The ratings are only valid when refering 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, please note that some of the review sites have changed their methodology and reporting over time.

 

Other camera comparisons

Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just use the search menu below. An an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool. If the camera you are interested in is not available, kindly get in touch, and I will try to locate and add the respective data to the application.

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