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Fujifilm X-A3 versus Fujifilm GFX 50S

The Fujifilm X-A3 and the Fujifilm GFX 50S are two digital cameras that were revealed to the public, respectively, in August 2016 and September 2016. Both the X-A3 and the GFX are mirrorless interchangeable lens cameras that are based on an APS-C (X-A3) and a medium format (GFX) sensor. The X-A3 has a resolution of 24 megapixel, whereas the GFX provides 51.1 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: Fujifilm X-A3 vs Fujifilm GFX 50S

The physical size and weight of the Fujifilm X-A3 and the Fujifilm GFX 50S are illustrated in the side-by-side display below. 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. You can also toggle the display 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 X-A3 – represents 100 percent across all the size and weight measures).

Snapsort Fujifilm X-A3 vs Fujifilm GFX 50S
Compare X-A3 versus GFX top
Compare X-A3 and GFX rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Fujifilm GFX 50S is considerably larger (77 percent) than the Fujifilm X-A3. Moreover, the GFX is substantially heavier (118 percent) than the X-A3. It is noteworthy in this context that the GFX is splash and dust-proof, while the X-A3 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. Hence, you might want to study the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the X-A3 gets 410 shots out of its NP-W126S battery, while the GFX can take 400 images on a single charge of its NP-T125 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)
Fujifilm X-A3» 4.6 in 2.6 in 1.6 in 12.0 oz 410 n Aug 2016 399 i i
Fujifilm GFX 50S« 5.8 in 3.7 in 3.6 in 26.1 oz 400 Y Sep 2016 6,499 i i
Canon SX730« » 4.3 in 2.5 in 1.6 in 10.6 oz 250 n Apr 2017 399 i i
Canon 1D X Mark II« » 6.2 in 6.6 in 3.3 in 54.0 oz 1210 Y Feb 2016 5,999 i i
Canon 5DS R« » 6.0 in 4.6 in 3.0 in 32.8 oz 700 Y Feb 2015 3,699 i i
Canon 5DS« » 6.0 in 4.6 in 3.0 in 32.8 oz 700 Y Feb 2015 3,699 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-T20« » 4.6 in 3.3 in 1.6 in 13.5 oz 350 n Jan 2017 899 i i
Fujifilm X-E2S« » 5.1 in 3.0 in 1.5 in 12.3 oz 350 n Jan 2016 699- i
Fujifilm X-Pro2« » 5.6 in 3.3 in 1.8 in 17.5 oz 350 Y Jan 2016 1,699 i i
Fujifilm X-T2« » 5.2 in 3.6 in 1.9 in 17.9 oz 340 Y Jul 2016 1,599 i i
Fujifilm X-A10« » 4.6 in 2.6 in 1.6 in 11.7 oz 410 n Dec 2016 399 i i
Fujifilm X-T10« » 4.6 in 3.3 in 1.6 in 13.4 oz 350 n May 2015 799- i
Fujifilm X-A2« » 4.6 in 2.6 in 1.6 in 12.3 oz 410 n Jan 2015 399- i
Fujifilm X-A1« » 4.6 in 2.6 in 1.5 in 11.6 oz 350 n Sep 2013 399- i
YI M1« » 4.5 in 2.5 in 1.3 in 9.9 oz 450 n Sep 2016 349 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-A3 was launched at a markedly lower price (by 94 percent) than the GFX, 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.

 

Sensor comparison: Fujifilm X-A3 vs Fujifilm GFX 50S

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.

Of the two cameras under consideration, the Fujifilm X-A3 features an APS-C sensor and the Fujifilm GFX 50S a medium format sensor. The sensor area in the GFX is 293 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 0.79. The sensor in the X-A3 has a native 3:2 aspect ratio, while the one in the GFX offers a 4:3 aspect.

Fujifilm X-A3 and Fujifilm GFX 50S sensor measures

With 51.1MP, the GFX offers a higher resolution than the X-A3 (24MP), but the GFX nevertheless has larger individual pixels (pixel pitch of 5.33μm versus 3.92μm for the X-A3) due to its larger sensor. It is noteworthy in this context that the two cameras were released in close succession, so that their sensors are from the same technological generation. Coming back to sensor resolution, it should be mentioned that the GFX has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

X-A3 versus GFX MP

For most 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 Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Fujifilm X-A3» APS-C 24.0 6000 40001080/60p----
Fujifilm GFX 50S« MF 51.1 8256 61921080/30p----
Canon SX730« » 1/2.3 20.2 5184 38881080/60p----
Canon 1D X Mark II« » Full Frame 20.0 5472 36484K/60p24.113.5320788
Canon 5DS R« » Full Frame 50.3 8688 57921080/60p24.612.4230886
Canon 5DS« » Full Frame 50.3 8688 57921080/60p24.712.4238187
Fujifilm X-A5« » APS-C 24.0 6000 40004K/15p----
Fujifilm X-E3« » APS-C 24.0 6000 40004K/30p----
Fujifilm X-T20« » APS-C 24.0 6000 40004K/30p----
Fujifilm X-E2S« » APS-C 16.0 4896 32641080/60p----
Fujifilm X-Pro2« » APS-C 24.0 6000 40001080/60p----
Fujifilm X-T2« » APS-C 24.0 6000 40004K/30p----
Fujifilm X-A10« » APS-C 16.0 4896 32641080/30p----
Fujifilm X-T10« » APS-C 16.0 4896 32641080/60p----
Fujifilm X-A2« » APS-C 16.0 4896 32641080/30p----
Fujifilm X-A1« » APS-C 16.0 4896 32641080/30p----
YI M1« » Four Thirds 20.2 5184 38884K/30p----

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 X-A3 provides a higher frame rate than the GFX. It can shoot video footage at 1080/60p, while the GFX is limited to 1080/30p.

 

Feature comparison: Fujifilm X-A3 vs Fujifilm GFX 50S

Beyond body and sensor, cameras can and do differ across a range of features. The X-A3 and the GFX are similar in the sense that neither of the two has a viewfinder. The images are, thus, framed using live view on the rear LCD. The adjacent table lists some of the other core features of the Fujifilm X-A3 and Fujifilm GFX 50S along with similar information for a selection of comparators. The full specs-sheets can be found in the camera manual or, 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
Fujifilm X-A3»- n 3.0 1040 tilting Y 4000 6.0 Y n
Fujifilm GFX 50S«- Y 3.2 2360 tilting Y 4000 3.0 n n
Canon SX730« »- n 3.0 922 tilting n 3200 5.9 Y Y
Canon 1D X Mark II« »optical Y 3.2 1620 fixed Y 8000 16.0 n n
Canon 5DS R« »optical Y 3.2 1040 fixed n 8000 5.0 n n
Canon 5DS« »optical Y 3.2 1040 fixed n 8000 5.0 n 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-T20« »2360 n 3.0 1040 tilting Y 4000 8.0 Y n
Fujifilm X-E2S« »2360 n 3.0 1040 fixed n 4000 7.0 Y n
Fujifilm X-Pro2« »2360 n 3.0 1620 fixed n 8000 8.0 n n
Fujifilm X-T2« »2360 n 3.0 1040 tilting n 8000 14.0 n n
Fujifilm X-A10« »- n 3.0 1040 tilting n 4000 6.0 Y n
Fujifilm X-T10« »2360 n 3.0 920 tilting n 4000 8.0 Y n
Fujifilm X-A2« »- n 3.0 920 tilting n 4000 5.6 Y n
Fujifilm X-A1« »- n 3.0 920 tilting n 4000 5.6 Y n
YI M1« »- n 3.0 1040 fixed Y 4000 5.0 n n

Both the X-A3 and the GFX are current models that good online retailers will have in stock. You can check the latest prices, for example, at amazon. The X-A3 replaced the earlier Fujifilm X-A2, while the GFX does not have a direct predecessor.

Review summary: Fujifilm X-A3 vs Fujifilm GFX 50S

So what conclusions can be drawn? Is the Fujifilm X-A3 better than the Fujifilm GFX 50S or vice versa? A synthesis of the relative strong points of each of the models is listed below.


Advantages of the Fujifilm X-A3:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Better video: Provides higher movie framerates (1080/60p versus 1080/30p).
  • Faster burst: Shoots at higher frequency (6 vs 3 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (117x67mm vs 148x94mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 401g or 54 percent) and hence easier to carry around.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced into a lower priced category (94 percent cheaper at launch).


Arguments in favor of the Fujifilm GFX 50S:

  • More detail: Has more megapixels (51.1 vs 24MP), which boosts linear resolution by 43%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better low-light imaging: Features bigger pixels on a larger sensor for better high-ISO images.
  • Easier setting verification: Has a control panel on top to check shooting parameters.
  • 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 (2360k vs 1040k dots).
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.

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.

X-A3 07:07 GFX

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 X-A3 or the GFX handle or 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. This is why expert reviews are important. The adjacent table relays the overall verdicts of several of the most popular camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). The detailed reviews can be accessed 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)
Fujifilm X-A3»-74/1004.5/5-4/5 Aug 2016 399 i i
Fujifilm GFX 50S«-85/1005/55/54.5/5 Sep 2016 6,499 i i
Canon SX730« »Rec-4/5-4/5 Apr 2017 399 i i
Canon 1D X Mark II« »-89/1004.5/55/54.5/5 Feb 2016 5,999 i i
Canon 5DS R« »Rec83/1005/55/54.5/5 Feb 2015 3,699 i i
Canon 5DS« »Rec83/1004.5/55/54.5/5 Feb 2015 3,699 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-T20« »HiRec82/1005/5-4.5/5 Jan 2017 899 i i
Fujifilm X-E2S« »-77/1004.5/5-4.5/5 Jan 2016 699- i
Fujifilm X-Pro2« »Rec83/1004.5/54.5/54.5/5 Jan 2016 1,699 i i
Fujifilm X-T2« »HiRec86/1004.5/55/55/5 Jul 2016 1,599 i i
Fujifilm X-A10« »--4/5-4/5 Dec 2016 399 i i
Fujifilm X-T10« »HiRec80/1005/54/55/5 May 2015 799- i
Fujifilm X-A2« »--4.5/54/54.5/5 Jan 2015 399- i
Fujifilm X-A1« »--4.5/5-4.5/5 Sep 2013 399- i
YI M1« »-69/100-2.5/5- Sep 2016 349 i i

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. 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 make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting. If you cannot find the camera you are interested in, kindly get in touch, and I will try to locate and add the respective data to the application.

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