Fujifilm X-A3 vs X-T100
The Fujifilm X-A3 and the Fujifilm X-T100 are two digital cameras that were revealed to the public, respectively, in August 2016 and May 2018. Both the X-A3 and the X-T100 are mirrorless interchangeable lens cameras that are equipped with an APS-C sensor. Both cameras offer a resolution of 24 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 Fujifilm X-A3 and the Fujifilm X-T100? 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 physical size and weight of the Fujifilm X-A3 and the Fujifilm X-T100 are illustrated in the side-by-side display below. 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 X-A3 can be obtained in three different colors (silver, brown, pink), while the X-T100 is also available in three color-versions, but different ones (black, silver, gold).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Fujifilm X-T100 is notably larger (28 percent) than the Fujifilm X-A3. Moreover, the X-T100 is markedly heavier (32 percent) than the X-A3. In this context, it is worth noting that neither the X-A3 nor the X-T100 are weather-sealed.
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 Fujinon X 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 battery packs of both cameras can be charged via USB, which can be very convenient when travelling.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.
|1.||Fujifilm X-A3||117 mm||67 mm||40 mm||339 g||410||n||Aug 2016||399||ebay.com|
|2.||Fujifilm X-T100||121 mm||83 mm||47 mm||448 g||430||n||May 2018||599||ebay.com|
|3.||Canon SX730||110 mm||64 mm||40 mm||300 g||250||n||Apr 2017||399||ebay.com|
|4.||Fujifilm X-T200||121 mm||84 mm||55 mm||370 g||270||n||Jan 2020||699||amazon.com|
|5.||Fujifilm X-T30||118 mm||83 mm||47 mm||383 g||380||n||Feb 2019||899||ebay.com|
|6.||Fujifilm X-A7||119 mm||68 mm||41 mm||320 g||440||n||Sep 2019||499||amazon.com|
|7.||Fujifilm X-A5||117 mm||68 mm||40 mm||361 g||450||n||Jan 2018||399||ebay.com|
|8.||Fujifilm X100F||127 mm||75 mm||52 mm||469 g||390||n||Jan 2017||1,299||ebay.com|
|9.||Fujifilm X-E3||121 mm||74 mm||43 mm||337 g||350||n||Sep 2017||899||ebay.com|
|10.||Fujifilm X-T20||118 mm||83 mm||41 mm||383 g||350||n||Jan 2017||899||ebay.com|
|11.||Fujifilm X-A10||117 mm||67 mm||40 mm||331 g||410||n||Dec 2016||399||ebay.com|
|12.||Fujifilm X-E2S||129 mm||75 mm||37 mm||350 g||350||n||Jan 2016||699||ebay.com|
|13.||Fujifilm X-A2||117 mm||67 mm||40 mm||350 g||410||n||Jan 2015||399||ebay.com|
|14.||Fujifilm X-T10||118 mm||83 mm||41 mm||381 g||350||n||May 2015||799||ebay.com|
|15.||Panasonic TZ90||112 mm||67 mm||41 mm||322 g||380||n||Apr 2017||449||ebay.com|
|16.||YI M1||114 mm||64 mm||34 mm||281 g||450||n||Sep 2016||349||ebay.com|
|Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will obviously take relative prices into account. 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 X-A3 was launched at a markedly lower price (by 33 percent) than the X-T100, 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 size of the sensor inside a digital camera is one of the key determinants 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. 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.
Both cameras under consideration feature an APS-C sensor and have a format factor (sometimes also referred to as "crop factor") of 1.5. 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 have a native aspect ratio (sensor width to sensor height) of 3:2.
The two cameras under review do not only share the same sensor size, but also offer an identical resolution of 24 megapixels. This similarity in sensor specs implies that both the X-A3 and the X-T100 have the same pixel density, as well as the same pixel size. It should, however, be noted that the X-T100 is a somewhat more recent model (by 1 year and 8 months) than the X-A3, and its sensor might have benefitted from technological advances during this time.
The X-T100 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Fujifilm X-A3 has a native sensitivity range from ISO 200 to ISO 6400, which can be extended to ISO 100-25600. The corresponding ISO settings for the Fujifilm X-T100 are ISO 200 to ISO 12800, with the possibility to increase the ISO range to 100-51200.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
Consistent information on actual sensor performance is available from DXO Mark for many 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 following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
|16.||YI M1||Four Thirds||20.2||5184||3888||4K/30p||23.0||12.6||1030||73|
|Note: DXO values in italics represent estimates based on sensor size and age.|
Many modern cameras are not only capable of taking still images, but can also record movies. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the X-T100 provides a better video resolution than the X-A3. It can shoot movie footage at 4K/15p, while the X-A3 is limited to 1080/60p.
Beyond body and sensor, cameras can and do differ across a range of features. For example, the X-T100 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 following table reports on some other key feature differences and similarities of the Fujifilm X-A3, the Fujifilm X-T100, and comparable cameras.
|1.||Fujifilm X-A3||none||n||3.0 / 1040||tilting||Y||1/4000s||6.0/s||Y||n|
|2.||Fujifilm X-T100||2360||n||3.0 / 1040||swivel||Y||1/4000s||6.0/s||Y||n|
|3.||Canon SX730||none||n||3.0 / 922||tilting||n||1/3200s||5.9/s||Y||Y|
|4.||Fujifilm X-T200||2360||n||3.5 / 2780||swivel||Y||1/4000s||8.0/s||Y||n|
|5.||Fujifilm X-T30||2360||n||3.0 / 1040||tilting||Y||1/4000s||8.0/s||Y||n|
|6.||Fujifilm X-A7||none||n||3.5 / 2760||swivel||Y||1/4000s||6.0/s||Y||n|
|7.||Fujifilm X-A5||none||n||3.0 / 1040||tilting||Y||1/4000s||6.0/s||Y||n|
|8.||Fujifilm X100F||2360||n||3.0 / 1040||fixed||n||1/4000s||8.0/s||Y||n|
|9.||Fujifilm X-E3||2360||n||3.0 / 1040||fixed||Y||1/4000s||8.0/s||n||n|
|10.||Fujifilm X-T20||2360||n||3.0 / 1040||tilting||Y||1/4000s||8.0/s||Y||n|
|11.||Fujifilm X-A10||none||n||3.0 / 1040||tilting||n||1/4000s||6.0/s||Y||n|
|12.||Fujifilm X-E2S||2360||n||3.0 / 1040||fixed||n||1/4000s||7.0/s||Y||n|
|13.||Fujifilm X-A2||none||n||3.0 / 920||tilting||n||1/4000s||5.6/s||Y||n|
|14.||Fujifilm X-T10||2360||n||3.0 / 920||tilting||n||1/4000s||8.0/s||Y||n|
|15.||Panasonic TZ90||1166||n||3.0 / 1040||tilting||Y||1/2000s||10.0/s||Y||Y|
|16.||YI M1||none||n||3.0 / 1040||fixed||Y||1/4000s||5.0/s||n||n|
|Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.|
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 Fujifilm X-A3 and the Fujifilm X-T100 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 X-A3 and the X-T100 write their files to SDXC cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.
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 Fujifilm X-A3 and Fujifilm X-T100 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Fujifilm X-A3||Y||stereo / mono||-||-||micro||2.0||Y||-||-|
|2.||Fujifilm X-T100||Y||stereo / mono||Y||-||micro||2.0||Y||-||Y|
|3.||Canon SX730||-||stereo / mono||-||-||micro||2.0||Y||Y||Y|
|4.||Fujifilm X-T200||Y||stereo / mono||Y||Y||micro||3.1||Y||-||Y|
|5.||Fujifilm X-T30||Y||stereo / mono||Y||-||micro||3.1||Y||-||Y|
|6.||Fujifilm X-A7||Y||stereo / mono||Y||-||micro||2.0||Y||-||Y|
|7.||Fujifilm X-A5||Y||stereo / mono||Y||-||micro||2.0||Y||-||Y|
|8.||Fujifilm X100F||Y||stereo / mono||Y||-||micro||2.0||Y||-||-|
|9.||Fujifilm X-E3||Y||stereo / mono||Y||-||micro||2.0||Y||-||Y|
|10.||Fujifilm X-T20||Y||stereo / mono||Y||-||micro||2.0||Y||-||-|
|11.||Fujifilm X-A10||-||stereo / mono||-||-||micro||2.0||Y||-||-|
|12.||Fujifilm X-E2S||Y||stereo / mono||Y||-||micro||2.0||Y||-||-|
|13.||Fujifilm X-A2||Y||stereo / mono||-||-||mini||2.0||Y||-||-|
|14.||Fujifilm X-T10||Y||stereo / mono||Y||-||micro||2.0||Y||-||-|
|15.||Panasonic TZ90||-||stereo / mono||-||-||micro||2.0||Y||-||-|
|16.||YI M1||Y||stereo / mono||-||-||micro||2.0||Y||-||Y|
It is notable that the X-T100 has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The X-A3 does not feature such a mic input.
Both the X-A3 and the X-T100 have been discontinued, but can regularly be found used on ebay. The X-A3 was replaced by the Fujifilm X-A5, while the X-T100 was followed by the Fujifilm X-T200. Further information on the features and operation of the X-A3 and X-T100 can be found, respectively, in the Fujifilm X-A3 Manual (free pdf) or the online Fujifilm X-T100 Manual.
So what conclusions can be drawn? Which of the two cameras – the Fujifilm X-A3 or the Fujifilm X-T100 – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.
Reasons to prefer the Fujifilm X-A3:
- More compact: Is smaller (117x67mm vs 121x83mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 109g or 24 percent) and hence easier to carry around.
- More affordable: Was introduced into a lower priced category (33 percent cheaper at launch).
- More heavily discounted: Has been on the market for longer (launched in August 2016).
Arguments in favor of the Fujifilm X-T100:
- Better video: Provides higher definition movie capture (4K/15p vs 1080/60p).
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Easier framing: Has an electronic viewfinder for image composition and settings control.
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- More modern: Was introduced somewhat (1 year and 8 months) more recently.
If the number of relative strengths (bullet points above) is taken as a guide, the X-T100 emerges as the winner of the match-up (7 : 4 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 Fujifilm X-A3 and the Fujifilm X-T100 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the X-A3 and the X-T100 in practical situations. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.
This is why expert reviews are important. The following table reports the overall ratings of the cameras as published by some of the major camera 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.||Fujifilm X-A3||..||..||..||74/100||4.5/5||4/5||Aug 2016||399||ebay.com|
|2.||Fujifilm X-T100||4/5||+||4.5/5||79/100||4/5||4.5/5||May 2018||599||ebay.com|
|3.||Canon SX730||..||+||..||..||4/5||4/5||Apr 2017||399||ebay.com|
|4.||Fujifilm X-T200||3.5/5||..||4/5||82/100||4/5||4.5/5||Jan 2020||699||amazon.com|
|5.||Fujifilm X-T30||5/5||+ +||5/5||84/100||4.5/5||4.5/5||Feb 2019||899||ebay.com|
|6.||Fujifilm X-A7||3/5||..||3.5/5||81/100||4/5||3.5/5||Sep 2019||499||amazon.com|
|7.||Fujifilm X-A5||..||+||4.1/5||..||4/5||3.5/5||Jan 2018||399||ebay.com|
|8.||Fujifilm X100F||5/5||+||3.9/5||83/100||4.5/5||4.5/5||Jan 2017||1,299||ebay.com|
|9.||Fujifilm X-E3||4.5/5||+||4.5/5||84/100||4.5/5||4.5/5||Sep 2017||899||ebay.com|
|10.||Fujifilm X-T20||5/5||+ +||5/5||82/100||5/5||4.5/5||Jan 2017||899||ebay.com|
|11.||Fujifilm X-A10||..||..||..||..||4/5||4/5||Dec 2016||399||ebay.com|
|12.||Fujifilm X-E2S||4.5/5||..||..||77/100||4.5/5||4.5/5||Jan 2016||699||ebay.com|
|13.||Fujifilm X-A2||4/5||..||..||..||4.5/5||4.5/5||Jan 2015||399||ebay.com|
|14.||Fujifilm X-T10||4.5/5||+ +||..||80/100||5/5||5/5||May 2015||799||ebay.com|
|15.||Panasonic TZ90||..||+ +||..||4/5||4/5||4/5||Apr 2017||449||ebay.com|
|16.||YI M1||..||..||..||69/100||..||..||Sep 2016||349||ebay.com|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, 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 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 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. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
- Canon 1300D vs Fujifilm X-T100
- Canon 600D vs Fujifilm X-T100
- Canon G9 X Mark II vs Fujifilm X-A3
- Canon S120 vs Fujifilm X-A3
- Epson R-D1 vs Fujifilm X-A3
- Fujifilm X-A3 vs Fujifilm X-T2
- Fujifilm X-A3 vs Panasonic FZ300
- Fujifilm X-A3 vs Sony RX10 IV
- Fujifilm X-T100 vs Nikon D3000
- Fujifilm X-T100 vs Nikon D70s
- Fujifilm X-T100 vs Sony RX0
- Fujifilm X-T100 vs Sony ZV-E10
Specifications: Fujifilm X-A3 vs Fujifilm X-T100
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||Fujifilm X-A3||Fujifilm X-T100|
|Camera Type||Mirrorless system camera||Mirrorless system camera|
|Camera Lens||Fujifilm X mount lenses||Fujifilm X mount lenses|
|Launch Date||August 2016||May 2018|
|Launch Price||USD 399||USD 599|
|Sensor Specs||Fujifilm X-A3||Fujifilm X-T100|
|Sensor Format||APS-C Sensor||APS-C Sensor|
|Sensor Size||23.5 x 15.7 mm||23.5 x 15.7 mm|
|Sensor Area||368.95 mm2||368.95 mm2|
|Sensor Diagonal||28.3 mm||28.3 mm|
|Sensor Resolution||24 Megapixels||24 Megapixels|
|Image Resolution||6000 x 4000 pixels||6000 x 4000 pixels|
|Pixel Pitch||3.92 μm||3.92 μm|
|Pixel Density||6.50 MP/cm2||6.50 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/60p Video||4K/15p Video|
|ISO Setting||200 - 6,400 ISO||200 - 12,800 ISO|
|ISO Boost||100 - 25,600 ISO||100 - 51,200 ISO|
|Screen Specs||Fujifilm X-A3||Fujifilm X-T100|
|Viewfinder Type||no viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%|
|Viewfinder Resolution||2360k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1040k dots||1040k dots|
|LCD Attachment||Tilting screen||Swivel screen|
|Shooting Specs||Fujifilm X-A3||Fujifilm X-T100|
|Focus System||Contrast-detect AF||On-Sensor Phase-detect|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/4000s|
|Continuous Shooting||6 shutter flaps/s||6 shutter flaps/s|
|Electronic Shutter||up to 1/32000s||up to 1/32000s|
|Time-Lapse Photography||Intervalometer built-in||Intervalometer built-in|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Single or Dual Card Slots||Single card slot||Single card slot|
|UHS card support||UHS-I||UHS-I|
|Connectivity Specs||Fujifilm X-A3||Fujifilm X-T100|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||micro HDMI||micro HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Bluetooth Support||no Bluetooth||Bluetooth built-in|
|Body Specs||Fujifilm X-A3||Fujifilm X-T100|
|Battery Life (CIPA)||410 shots per charge||430 shots per charge|
|In-Camera Charging||USB charging||USB charging|
117 x 67 x 40 mm
(4.6 x 2.6 x 1.6 in)
121 x 83 x 47 mm
(4.8 x 3.3 x 1.9 in)
|Camera Weight||339 g (12.0 oz)||448 g (15.8 oz)|
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