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Fujifilm X100F versus Fujifilm X-A3

The Fujifilm X100F and the Fujifilm X-A3 are two digital cameras that were revealed to the public, respectively, in January 2017 and August 2016. The X100F is a fixed lens compact, while the X-A3 is a mirrorless interchangeable lens camera. Both cameras are equipped with an APS-C sensor. Both cameras offer a resolution of 24 megapixel.

Body comparison

The side-by-side display below illustrates the physical size and weight of the Fujifilm X100F and the Fujifilm X-A3. Three consecutive perspectives from the front, the top, and the back are presented. 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 X100F – represents 100 percent across all the size and weight measures).

Fujifilm X100F vs Fujifilm X-A3 front
X100F versus X-A3 top view
X100F and X-A3 rear side
Body view (X100F 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 X-A3 is notably smaller (18 percent) than the Fujifilm X100F. Cameras that are intended for semi-professional or professional use are sometimes a bit bulkier in order to provide them with the necessary ruggedness. In this context, it is worth noting that neither the X100F nor the X-A3 are weather-sealed.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the X100F has a lens build in, whereas the X-A3 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can find an overview of optics for the X-A3 and their specifications in the Fujinon X Lens Catalog.

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 X100F (⇒ rgt) 5.0 in 3.0 in 2.0 in 16.5 oz 390 no 2017 1,299 latest check
Fujifilm X-A3 (⇒ lft) 4.6 in 2.6 in 1.6 in 12.0 oz 410 no 2016 399 latest check
Canon G9 X Mark II (⇒ lft | rgt) 3.9 in 2.3 in 1.2 in 7.3 oz 235 no 2017 529 latest check
Canon G1 X Mark III (⇒ lft | rgt) 4.5 in 3.1 in 2.0 in 14.1 oz 200 YES 2017 1,299 latest check
Canon G7 X Mark II (⇒ lft | rgt) 4.2 in 2.4 in 1.7 in 11.3 oz 265 no 2016 699 latest check
Fujifilm X-E3 (⇒ lft | rgt) 4.8 in 2.9 in 1.7 in 11.9 oz 350 no 2017 899 latest check
Fujifilm X-T20 (⇒ lft | rgt) 4.6 in 3.3 in 1.6 in 13.5 oz 350 no 2017 899 latest check
Fujifilm X70 (⇒ lft | rgt) 4.4 in 2.5 in 1.7 in 12.0 oz 330 no 2016 799 latest check
Fujifilm X-A10 (⇒ lft | rgt) 4.6 in 2.6 in 1.6 in 11.7 oz 410 no 2016 399 latest check
Fujifilm X-A2 (⇒ lft | rgt) 4.6 in 2.6 in 1.6 in 12.3 oz 410 no 2015 399discont. check
Fujifilm X100T (⇒ lft | rgt) 5.0 in 2.9 in 2.0 in 15.5 oz 330 no 2014 1,299discont. check
Fujifilm X100S (⇒ lft | rgt) 5.0 in 2.9 in 2.1 in 15.7 oz 330 no 2013 1,299discont. check
Panasonic FZ2500 (⇒ lft | rgt) 5.4 in 4.0 in 5.3 in 32.3 oz 350 no 2016 1,199 latest check

The listed prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. 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 sensor inside a digital camera is one of the key determinants 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 more expensive and lead to bigger and heavier cameras and lenses.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. They nevertheless have the same format factor of 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Fujifilm X100F and Fujifilm X-A3 sensor measures
Sensor size

Even though the X-A3 has a larger sensor, both cameras offer the same resolution of 24 megapixel. This implies that the X-A3 has a lower pixel density and larger individual pixels (with a pixel pitch of 3.92μm versus 3.93μm for the X100F), which gives it a potential advantage in terms of light gathering capacity. It should, however, be noted that the X100F is a somewhat more recent model (by 4 months) than the X-A3, and its sensor might have benefitted from technological advances during this time that at least partly compensate for the smaller pixel size. Coming back to sensor resolution, it should be mentioned that the X100F has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

X100F versus X-A3 MP
Sensor resolution

Consistent information on actual sensor performance is available from DXO Mark for most cameras. 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
(Megapixel)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Fujifilm X100F (⇒ rgt) APS-C 24.0 6000 4000 1080/60p - - - -
Fujifilm X-A3 (⇒ lft) APS-C 24.0 6000 4000 1080/60p - - - -
Canon G9 X Mark II (⇒ lft | rgt) 1-inch 20.0 5472 3648 1080/60p 21.9 12.5 522 65
Canon G1 X Mark III (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p .. .. .. ..
Canon G7 X Mark II (⇒ lft | rgt) 1-inch 20.0 5472 3648 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 X70 (⇒ lft | rgt) APS-C 16.0 4896 3264 1080/60p - - - -
Fujifilm X-A10 (⇒ lft | rgt) APS-C 16.0 4896 3264 1080/30p - - - -
Fujifilm X-A2 (⇒ lft | rgt) APS-C 16.0 4896 3264 1080/30p - - - -
Fujifilm X100T (⇒ lft | rgt) APS-C 16.0 4896 3264 1080/60p - - - -
Fujifilm X100S (⇒ lft | rgt) APS-C 16.0 4896 3264 1080/60p - - - -
Panasonic FZ2500 (⇒ lft | rgt) 1-inch 20.0 5472 3648 4K/30p .. .. .. ..

Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, and both provide the same movie specifications (1080/60p).

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the X100F has an electronic viewfinder (2360k dots), which can be very helpful when shooting in bright sunlight. In contrast, the X-A3 relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Fujifilm X100F and Fujifilm X-A3 along with similar information for a selection of comparators. If needed, the dpreview camera hub, for example, contains further detail on the cameras' specs.

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 X100F (⇒ rgt) 2360 no 3.0 1040 fixed no 4000 8.0 4.6 no
Fujifilm X-A3 (⇒ lft) no no 3.0 1040 tilting YES 4000 6.0 7 no
Canon G9 X Mark II (⇒ lft | rgt) no no 3.0 1040 fixed YES 2000 8.2 6 no
Canon G1 X Mark III (⇒ lft | rgt) 2360 no 3.0 1040 swivel YES 2000 9.0 9 no
Canon G7 X Mark II (⇒ lft | rgt) no no 3.0 1040 tilting YES 2000 8.0 7 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 X70 (⇒ lft | rgt) no no 3.0 1040 tilting YES 4000 8.0 7.9 no
Fujifilm X-A10 (⇒ lft | rgt) no no 3.0 1040 tilting no 4000 6.0 5 no
Fujifilm X-A2 (⇒ lft | rgt) no no 3.0 920 tilting no 4000 5.6 7 no
Fujifilm X100T (⇒ lft | rgt) 2360 no 3.0 1040 fixed no 4000 6.0 9 no
Fujifilm X100S (⇒ lft | rgt) 2360 no 2.8 460 fixed no 4000 6.0 9 no
Panasonic FZ2500 (⇒ lft | rgt) 2360 no 3.0 1040 swivel YES 4000 12.0 13.2 no

Both the X100F and the X-A3 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 X100F followed on from the Fujifilm X100T.

Summary

So how do things add up? Is the Fujifilm X100F better than the Fujifilm X-A3 or vice versa? Below is a summary of the relative strengths of each of the two contestants.


Reasons to prefer the Fujifilm X100F:

  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Easier framing: Has an electronic viewfinder for image framing and settings control.
  • Faster burst: Shoots at higher frequency (8 vs 6 flaps/sec) to capture the decisive moment.
  • Ready to shoot: Has a lens build-in, whereas the X-A3 requires a separate lens.
  • More modern: Is somewhat more recent (announced 4 months after the X-A3).

Arguments in favor of the Fujifilm X-A3:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
  • More compact: Is smaller (117x67mm vs 127x75mm) and will fit more readily into a bag.
  • More heavily discounted: Has been on the market for longer (launched in January 2017).

If the number of relative strengths (bullet points above) is taken as a guide, the X-A3 comes out slightly ahead of the X100F (6 : 5 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.

X100F 05:06 X-A3

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 handling experience and imaging performance when actually working with the X100F or the X-A3. 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 following table reports the overall rankings of the cameras as published by some of the major camera review sites. The detailed reviews can be accessed, respectively, on the websites of 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 X100F (⇒ rgt) Rec 83/100 Gold 4.5/5 .. 4.5/5 2017 1,299 latest check
Fujifilm X-A3 (⇒ lft) - 74/100 4.5/5 - 4/5 2016 399 latest check
Canon G9 X Mark II (⇒ lft | rgt) .. .. 4.5/5 4.5/5 4.5/5 2017 529 latest check
Canon G1 X Mark III (⇒ lft | rgt) .. .. .. .. .. 2017 1,299 latest check
Canon G7 X Mark II (⇒ lft | rgt) HiRec 81/100 Silver 4.5/5 4/5 4.5/5 2016 699 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 X70 (⇒ lft | rgt) - 76/100 4.5/5 4/5 4.5/5 2016 799 latest check
Fujifilm X-A10 (⇒ lft | rgt) - - 4/5 - 4/5 2016 399 latest check
Fujifilm X-A2 (⇒ lft | rgt) - - 4.5/5 4/5 4.5/5 2015 399discont. check
Fujifilm X100T (⇒ lft | rgt) Rec 81/100 Silver 4.5/5 4.5/5 5/5 2014 1,299discont. check
Fujifilm X100S (⇒ lft | rgt) HiRec 81/100 Gold 4.5/5 4/5 5/5 2013 1,299discont. check
Panasonic FZ2500 (⇒ lft | rgt) Rec 82/100 Silver 4.5/5 4.5/5 5/5 2016 1,199 latest check

The review scores listed above should be treated with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.

Other comparisons

If you would like to see a different side-by-side camera review, just use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting. If you do not see the camera that you are looking for, kindly get in touch, and I will try to add information on that model to the database.

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