Fujifilm X-T100 vs Sony A1
The Fujifilm X-T100 and the Sony A1 are two digital cameras that were revealed to the public, respectively, in May 2018 and January 2021. Both the X-T100 and the A1 are mirrorless interchangeable lens cameras that are based on an APS-C (X-T100) and a full frame (A1) sensor. The Fujifilm has a resolution of 24 megapixels, whereas the Sony provides 49.8 MP.
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-T100 and the Sony A1? 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.
An illustration of the physical size and weight of the Fujifilm X-T100 and the Sony A1 is provided 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-T100 can be obtained in three different colors (black, silver, gold), while the A1 is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A1 is notably larger (25 percent) than the Fujifilm X-T100. Moreover, the A1 is substantially heavier (65 percent) than the X-T100. It is noteworthy in this context that the A1 is splash and dust-proof, while the X-T100 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 compare the optics available for the two cameras in the Fujinon X Lens Catalog (X-T100) and the Sony FE Lens Catalog (A1). 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 X-T100 gets 430 shots out of its NP-W126S battery, while the A1 can take 530 images on a single charge of its NP-FZ100 power pack. The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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-T100||121 mm||83 mm||47 mm||448 g||430||n||May 2018||599|
|2.||Sony A1||129 mm||97 mm||81 mm||737 g||530||Y||Jan 2021||6,499|
|3.||Fujifilm X-T200||121 mm||84 mm||55 mm||370 g||270||n||Jan 2020||699|
|4.||Fujifilm X-Pro3||141 mm||83 mm||46 mm||497 g||440||Y||Oct 2019||1,799|
|5.||Fujifilm X-T30||118 mm||83 mm||47 mm||383 g||380||n||Feb 2019||899|
|6.||Fujifilm X-A7||119 mm||68 mm||41 mm||320 g||440||n||Sep 2019||499|
|7.||Fujifilm X-A5||117 mm||68 mm||40 mm||361 g||450||n||Jan 2018||399|
|8.||Fujifilm XF10||113 mm||64 mm||41 mm||279 g||330||n||Jul 2018||499|
|9.||Fujifilm X-T3||133 mm||93 mm||59 mm||539 g||390||Y||Sep 2018||1,499|
|10.||Fujifilm X100F||127 mm||75 mm||52 mm||469 g||390||n||Jan 2017||1,299|
|11.||Fujifilm X-E3||121 mm||74 mm||43 mm||337 g||350||n||Sep 2017||899|
|12.||Fujifilm X-T20||118 mm||83 mm||41 mm||383 g||350||n||Jan 2017||899|
|13.||Sony A7S III||127 mm||97 mm||81 mm||699 g||600||Y||Jul 2020||3,499|
|14.||Sony A7R IV||129 mm||96 mm||78 mm||665 g||670||Y||Jul 2019||3,499|
|15.||Sony A7R III||127 mm||96 mm||74 mm||650 g||650||Y||Oct 2017||3,199|
|16.||Sony A9||127 mm||96 mm||63 mm||673 g||650||Y||Apr 2017||4,499|
|17.||Sony A7R II||127 mm||96 mm||60 mm||625 g||290||Y||Jun 2015||3,199|
|Notes: 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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The X-T100 was launched at a markedly lower price (by 91 percent) than the A1, 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 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. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to 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-T100 features an APS-C sensor and the Sony A1 a full frame sensor. The sensor area in the A1 is 134 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 49.8MP, the A1 offers a higher resolution than the X-T100 (24MP), but the A1 nevertheless has larger individual pixels (pixel pitch of 4.16μm versus 3.92μm for the X-T100) due to its larger sensor. Moreover, the A1 is a much more recent model (by 2 years and 8 months) than the X-T100, and its sensor will 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 A1 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Sony A1 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A1 for good quality output (200 dots per inch) amounts to 43.2 x 28.8 inches or 109.7 x 73.2 cm, for very good quality (250 dpi) 34.6 x 23 inches or 87.8 x 58.5 cm, and for excellent quality (300 dpi) 28.8 x 19.2 inches or 73.2 x 48.8 cm. The corresponding values for the Fujifilm X-T100 are 30 x 20 inches or 76.2 x 50.8 cm for good quality, 24 x 16 inches or 61 x 40.6 cm for very good quality, and 20 x 13.3 inches or 50.8 x 33.9 cm for excellent quality prints.
Unlike the X-T100, the A1 has the capacity to capture high quality composite images (YESMP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).
The Fujifilm X-T100 has a native sensitivity range from ISO 200 to ISO 12800, which can be extended to ISO 100-51200. The corresponding ISO settings for the Sony A1 are ISO 100 to ISO 32000, with the possibility to increase the ISO range to 500-102400.
Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
| DXO |
|2.||Sony A1||Full Frame||49.8||8640||5760||8k/30p||..||..||..||..|
|13.||Sony A7S III||Full Frame||12.0||4240||2832||4K/120p||23.7||13.9||2520||86|
|14.||Sony A7R IV||Full Frame||60.2||9504||6336||4K/30p||26.0||14.8||3344||99|
|15.||Sony A7R III||Full Frame||42.2||7952||5304||4K/30p||26.0||14.7||3523||100|
|16.||Sony A9||Full Frame||24.0||6000||4000||4K/30p||24.9||13.3||3517||92|
|17.||Sony A7R II||Full Frame||42.2||7952||5304||4K/30p||26.0||13.9||3434||98|
Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the A1 provides a better video resolution than the X-T100. It can shoot movie footage at 8k/30p, while the Fujifilm is limited to 4K/15p.
Apart from body and sensor, cameras can and do differ across a range of features. The two cameras under review are similar with respect to both having an electronic viewfinder. However, the one in the A1 offers a substantially higher resolution than the one in the X-T100 (9437k vs 2360k dots). The following table reports on some other key feature differences and similarities of the Fujifilm X-T100, the Sony A1, and comparable cameras.
|13.||Sony A7S III||9440||n||3.0||1440||swivel||Y||1/8000s||10.0||n||Y|
|14.||Sony A7R IV||5760||n||3.0||1440||tilting||Y||1/8000s||10.0||n||Y|
|15.||Sony A7R III||3686||n||3.0||1440||tilting||Y||1/8000s||10.0||n||Y|
|17.||Sony A7R II||2400||n||3.0||1229||tilting||n||1/8000s||5.0||n||Y|
One difference between the cameras concerns the presence of an on-board flash. The X-T100 has one, while the A1 does not. While the built-in flash of the X-T100 is not very powerful, it can at times be useful as a fill-in light.The X-T100 has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the A1 does not have a selfie-screen.
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-T100 and the Sony A1 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.
The X-T100 writes its imaging data to SDXC cards, while the A1 uses CFexpress or SDXC cards. The A1 features dual card slots, which can be very useful in case a memory card fails. In contrast, the X-T100 only has one slot. The A1 supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the X-T100 can use UHS-I cards (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-T100 and Sony A1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|13.||Sony A7S III||Y||stereo||mono||Y||Y||full||3.2||Y||-||Y|
|14.||Sony A7R IV||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y|
|15.||Sony A7R III||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y|
|17.||Sony A7R II||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-|
It is notable that the A1 has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The X-T100 lacks such a headphone port.
Studio photographers will appreciate that the Sony A1 (unlike the X-T100) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
The A1 is a recent model that features in the current product line-up of Sony. In contrast, the X-T100 has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the X-T100 was succeeded by the Fujifilm X-T200. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Fujifilm and Sony websites.
So how do things add up? Which of the two cameras – the Fujifilm X-T100 or the Sony A1 – 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.
Arguments in favor of the Fujifilm X-T100:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- More compact: Is smaller (121x83mm vs 129x97mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 289g or 39 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 (91 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in May 2018).
Advantages of the Sony A1:
- More detail: Has more megapixels (49.8 vs 24MP), which boosts linear resolution by 44%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- High quality composites: Can combine several shots after pixel-shifting its sensor.
- Better image quality: Is equipped with a larger and more technologically advanced sensor.
- Richer colors: The sensor size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
- Better video: Provides higher definition movie capture (8k/30p vs 4K/15p).
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- More detailed viewfinder: Has higher resolution electronic viewfinder (9437k vs 2360k dots).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.9x vs 0.62x).
- More detailed LCD: Has a higher resolution rear screen (1440k vs 1040k dots).
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (10 vs 6 flaps/sec) to capture the decisive moment.
- Longer lasting: Gets more shots (530 versus 430) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- Faster data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
- More modern: Reflects 2 years and 8 months of technical progress since the X-T100 launch.
If the number of relative strengths (bullet points above) is taken as a guide, the A1 is the clear winner of the contest (22 : 8 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-T100 and the Sony A1 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 comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it says little about, for example, the shooting experience and imaging performance of the X-T100 and the A1 in practical situations. 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 where reviews by experts come in. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], 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-T100||4/5||+||79/100||4/5||4.5/5||May 2018||599|
|2.||Sony A1||5/5||o||93/100||..||5/5||Jan 2021||6,499|
|3.||Fujifilm X-T200||3.5/5||..||82/100||4/5||4.5/5||Jan 2020||699|
|4.||Fujifilm X-Pro3||4/5||+||85/100||4/5||..||Oct 2019||1,799|
|5.||Fujifilm X-T30||5/5||+ +||84/100||4.5/5||4.5/5||Feb 2019||899|
|6.||Fujifilm X-A7||3/5||..||81/100||4/5||3.5/5||Sep 2019||499|
|7.||Fujifilm X-A5||..||+||..||4/5||3.5/5||Jan 2018||399|
|8.||Fujifilm XF10||..||..||75/100||4/5||4.5/5||Jul 2018||499|
|9.||Fujifilm X-T3||5/5||+ +||88/100||5/5||5/5||Sep 2018||1,499|
|10.||Fujifilm X100F||5/5||+||83/100||4.5/5||4.5/5||Jan 2017||1,299|
|11.||Fujifilm X-E3||4.5/5||+||84/100||4.5/5||4.5/5||Sep 2017||899|
|12.||Fujifilm X-T20||5/5||+ +||82/100||5/5||4.5/5||Jan 2017||899|
|13.||Sony A7S III||..||+ +||91/100||4.5/5||5/5||Jul 2020||3,499|
|14.||Sony A7R IV||5/5||+||91/100||4.5/5||5/5||Jul 2019||3,499|
|15.||Sony A7R III||..||+ +||90/100||4.5/5||5/5||Oct 2017||3,199|
|16.||Sony A9||5/5||+ +||89/100||5/5||5/5||Apr 2017||4,499|
|17.||Sony A7R II||5/5||+ +||90/100||5/5||5/5||Jun 2015||3,199|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
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. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
Specifications: Fujifilm X-T100 vs Sony A1
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-T100||Sony A1|
|Camera Type||Mirrorless system camera||Mirrorless system camera|
|Camera Lens||Fujifilm X mount lenses||Sony E mount lenses|
|Launch Date||May 2018||January 2021|
|Launch Price||USD 599||USD 6,499|
|Sensor Specs||Fujifilm X-T100||Sony A1|
|Sensor Format||APS-C Sensor||Full Frame Sensor|
|Sensor Size||23.5 x 15.7 mm||35.9 x 24.0 mm|
|Sensor Area||368.95 mm2||861.6 mm2|
|Sensor Diagonal||28.3 mm||43.2 mm|
|Sensor Resolution||24 Megapixels||49.8 Megapixels|
|Image Resolution||6000 x 4000 pixels||8640 x 5760 pixels|
|Pixel Pitch||3.92 μm||4.16 μm|
|Pixel Density||6.50 MP/cm2||5.78 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||4K/15p Video||8k/30p Video|
|ISO Setting||200 - 12,800 ISO||100 - 32,000 ISO|
|ISO Boost||100 - 51,200 ISO||500 - 102,400 ISO|
|Screen Specs||Fujifilm X-T100||Sony A1|
|Viewfinder Type||Electronic viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||2360k dots||9437k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1040k dots||1440k dots|
|LCD Attachment||Fully flexible screen||Tilting screen|
|Shooting Specs||Fujifilm X-T100||Sony A1|
|Focus System||On-Sensor Phase-detect||On-Sensor Phase-detect|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/8000s|
|Continuous Shooting||6 shutter flaps/s||10 shutter flaps/s|
|Electronic Shutter||up to 1/32000s||up to 1/32000s|
|Time-Lapse Photography||Intervalometer built-in||Intervalometer built-in|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||Build-in Flash||no On-Board Flash|
|Storage Medium||SDXC cards||CFexpress or SDXC cards|
|Second Storage Option||Single card slot||Dual card slots|
|UHS card support||UHS-I||UHS-II|
|Connectivity Specs||Fujifilm X-T100||Sony A1|
|Studio Flash||no PC Sync||PC Sync socket|
|USB Connector||USB 2.0||USB 3.2|
|HDMI Port||micro HDMI||mini HDMI|
|Microphone Port||External MIC port||External MIC port|
|Headphone Socket||no Headphone port||Headphone port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Bluetooth Support||Bluetooth built-in||Bluetooth built-in|
|Body Specs||Fujifilm X-T100||Sony A1|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||430 shots per charge||530 shots per charge|
|In-Camera Charging||USB charging||USB charging|
121 x 83 x 47 mm
(4.8 x 3.3 x 1.9 in)
129 x 97 x 81 mm
(5.1 x 3.8 x 3.2 in)
|Camera Weight||448 g (15.8 oz)||737 g (26.0 oz)|
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