Fujifilm X-A3 versus Fujifilm GFX 50S

The Fujifilm X-A3 and the Fujifilm GFX 50S are two digital cameras that were officially introduced, 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 sensor. The X-A3 has a resolution of 24 megapixel, whereas the GFX provides 51.1 MP.

Body comparison

The side-by-side display below illustrates the physical size and weight of the Fujifilm X-A3 and the Fujifilm GFX 50S. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth measures are rounded to the nearest millimeter. If you prefer, you can also use the toggle button to switch to a comparison in percentage terms (in this case, the camera on the left side – the X-A3 – represents the basis for the calculations across all the size and weight measures).

Fujifilm X-A3 vs Fujifilm GFX 50S front
X-A3 versus GFX top view
X-A3 and GFX rear side
Body view (X-A3 on the left)

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. Cameras that are aimed at professionals or semi-pros tend to be a bit bulkier in order to give them the necessary environmental and shock resistance. 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.

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 comparisons there.

Camera Body Specifications
Camera Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(y/n)
Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Fujifilm X-A3 (⇒ rgt) 117 mm 67 mm 40 mm 339 g 410 no 2016 399 latest check
Fujifilm GFX 50S (⇒ lft) 148 mm 94 mm 91 mm 740 g 400 YES 2016 6,499 latest check
Canon 1D X Mark II (⇒ lft | rgt) 158 mm 168 mm 83 mm 1530 g 1210 YES 2016 5,999 latest check
Canon 5DS R (⇒ lft | rgt) 152 mm 116 mm 76 mm 930 g 700 YES 2015 3,699 latest check
Canon 5DS (⇒ lft | rgt) 152 mm 116 mm 76 mm 930 g 700 YES 2015 3,699 latest check
Fujifilm X100F (⇒ lft | rgt) 127 mm 75 mm 52 mm 469 g 390 no 2017 1,299 latest check
Fujifilm X-E3 (⇒ lft | rgt) 121 mm 74 mm 43 mm 337 g 350 no 2017 899 latest check
Fujifilm X-T20 (⇒ lft | rgt) 118 mm 83 mm 41 mm 383 g 350 no 2017 899 latest check
Fujifilm X-E2S (⇒ lft | rgt) 129 mm 75 mm 37 mm 350 g 350 no 2016 699discont. check
Fujifilm X-Pro2 (⇒ lft | rgt) 141 mm 83 mm 46 mm 495 g 350 YES 2016 1,699 latest check
Fujifilm X-T2 (⇒ lft | rgt) 133 mm 92 mm 49 mm 507 g 340 YES 2016 1,599 latest check
Fujifilm X-A10 (⇒ lft | rgt) 117 mm 67 mm 40 mm 331 g 410 no 2016 399 latest check
Fujifilm X-T10 (⇒ lft | rgt) 118 mm 83 mm 41 mm 381 g 350 no 2015 799discont. check
Fujifilm X-A2 (⇒ lft | rgt) 117 mm 67 mm 40 mm 350 g 410 no 2015 399discont. check
YI M1 (⇒ lft | rgt) 114 mm 64 mm 34 mm 281 g 450 no 2016 349 latest check

The listed 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

The size of the imaging sensor is a crucial determinant 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 more expensive and lead to bigger and heavier cameras 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
Sensor size

With 51.1MP, the GFX offers a higher resolution than the X-A3 (24MP), but the GFX nevertheless has marginally 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 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
Sensor resolution

Consistent information on actual sensor performance is available from DXO Mark for most cameras. 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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

Sensor Characteristics
Camera Sensor
Class
Resolution
(Megapixel)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Fujifilm X-A3 (⇒ rgt) APS-C 24.0 6000 4000 1080/60p - - - -
Fujifilm GFX 50S (⇒ lft) MF 51.1 8256 6192 1080/30p .. .. .. ..
Canon 1D X Mark II (⇒ lft | rgt) Full Frame 20.0 5472 3648 4K/60p 24.1 13.5 3207 88
Canon 5DS R (⇒ lft | rgt) Full Frame 50.3 8688 5792 1080/60p 24.6 12.4 2308 86
Canon 5DS (⇒ lft | rgt) Full Frame 50.3 8688 5792 1080/60p 24.7 12.4 2381 87
Fujifilm X100F (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p - - - -
Fujifilm X-E3 (⇒ lft | rgt) APS-C 24.0 6000 4000 4K/30p - - - -
Fujifilm X-T20 (⇒ lft | rgt) APS-C 24.0 6000 4000 4K/30p - - - -
Fujifilm X-E2S (⇒ lft | rgt) APS-C 16.0 4896 3264 1080/60p - - - -
Fujifilm X-Pro2 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p - - - -
Fujifilm X-T2 (⇒ lft | rgt) APS-C 24.0 6000 4000 4K/30p - - - -
Fujifilm X-A10 (⇒ lft | rgt) APS-C 16.0 4896 3264 1080/30p - - - -
Fujifilm X-T10 (⇒ lft | rgt) APS-C 16.0 4896 3264 1080/60p - - - -
Fujifilm X-A2 (⇒ lft | rgt) APS-C 16.0 4896 3264 1080/30p - - - -
YI M1 (⇒ lft | rgt) Four Thirds 20.2 5184 3888 4K/30p - - - -

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, 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

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 table below summarizes some of the other core capabilities of the Fujifilm X-A3 and Fujifilm GFX 50S in connection with corresponding information for a sample of similar cameras. 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
(Y/n)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(Y/n)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec))
Build-in
Flash
(GN)
Build-in
Image
Stab
Fujifilm X-A3 (⇒ rgt) no no 3.0 1040 tilting YES 4000 6.0 7 no
Fujifilm GFX 50S (⇒ lft) no YES 3.2 2360 tilting YES 4000 3.0 no no
Canon 1D X Mark II (⇒ lft | rgt) optical YES 3.2 1620 fixed YES 8000 16.0 no no
Canon 5DS R (⇒ lft | rgt) optical YES 3.2 1040 fixed no 8000 5.0 no no
Canon 5DS (⇒ lft | rgt) optical YES 3.2 1040 fixed no 8000 5.0 no no
Fujifilm X100F (⇒ lft | rgt) 2360 no 3.0 1040 fixed no 4000 8.0 4.6 no
Fujifilm X-E3 (⇒ lft | rgt) 2360 no 3.0 1040 fixed YES 4000 8.0 no no
Fujifilm X-T20 (⇒ lft | rgt) 2360 no 3.0 1040 tilting YES 4000 8.0 5 no
Fujifilm X-E2S (⇒ lft | rgt) 2360 no 3.0 1040 fixed no 4000 7.0 7 no
Fujifilm X-Pro2 (⇒ lft | rgt) 2360 no 3.0 1620 fixed no 8000 8.0 no no
Fujifilm X-T2 (⇒ lft | rgt) 2360 no 3.0 1040 tilting no 8000 14.0 no no
Fujifilm X-A10 (⇒ lft | rgt) no no 3.0 1040 tilting no 4000 6.0 5 no
Fujifilm X-T10 (⇒ lft | rgt) 2360 no 3.0 920 tilting no 4000 8.0 5 no
Fujifilm X-A2 (⇒ lft | rgt) no no 3.0 920 tilting no 4000 5.6 7 no
YI M1 (⇒ lft | rgt) no no 3.0 1040 fixed YES 4000 5.0 no no

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.

Summary

So what conclusions can be drawn? Is the Fujifilm X-A3 better than the Fujifilm GFX 50S or vice versa? Below is a summary of the relative strengths of each of the two contestants.


Reasons to prefer 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 vs 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 pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs.

X-A3 07:07 GFX

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 X-A3 and the GFX 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. The full reviews are available, respectively, at cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.

Review scores
Camera camera
labs
dp
review
ephoto
zine
imaging
resource
photography
blog
Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Fujifilm X-A3 (⇒ rgt) - 74/100 4.5/5 - 4/5 2016 399 latest check
Fujifilm GFX 50S (⇒ lft) - 85/100 Gold 5/5 5/5 4.5/5 2016 6,499 latest check
Canon 1D X Mark II (⇒ lft | rgt) - 89/100 Gold 4.5/5 5/5 4.5/5 2016 5,999 latest check
Canon 5DS R (⇒ lft | rgt) Rec 83/100 Silver 5/5 5/5 4.5/5 2015 3,699 latest check
Canon 5DS (⇒ lft | rgt) Rec 83/100 Silver 4.5/5 5/5 4.5/5 2015 3,699 latest check
Fujifilm X100F (⇒ lft | rgt) Rec 83/100 Gold 4.5/5 .. 4.5/5 2017 1,299 latest check
Fujifilm X-E3 (⇒ lft | rgt) .. 84/100 Gold 4.5/5 .. 4.5/5 2017 899 latest check
Fujifilm X-T20 (⇒ lft | rgt) HiRec 82/100 Silver 5/5 .. 4.5/5 2017 899 latest check
Fujifilm X-E2S (⇒ lft | rgt) - 77/100 4.5/5 - 4.5/5 2016 699discont. check
Fujifilm X-Pro2 (⇒ lft | rgt) Rec 83/100 Silver 4.5/5 4.5/5 4.5/5 2016 1,699 latest check
Fujifilm X-T2 (⇒ lft | rgt) HiRec 86/100 Gold 4.5/5 5/5 5/5 2016 1,599 latest check
Fujifilm X-A10 (⇒ lft | rgt) - - 4/5 - 4/5 2016 399 latest check
Fujifilm X-T10 (⇒ lft | rgt) HiRec 80/100 Silver 5/5 4/5 5/5 2015 799discont. check
Fujifilm X-A2 (⇒ lft | rgt) - - 4.5/5 4/5 4.5/5 2015 399discont. check
YI M1 (⇒ lft | rgt) - 69/100 - 2.5/5 - 2016 349 latest check

Care should be taken when interpreting the review scores above, though. The ratings are only valid when refering to cameras in the same category and of the same age. Hence, a score should always be seen in the context of the camera's market launch date and its price, 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.

Other comparisons

In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored. If you do not see the camera that you are looking for, kindly get in touch, and I will try to update the database with the necessary infos.

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