Fujifilm X-T1 vs Sony A7S
The Fujifilm X-T1 and the Sony Alpha A7S are two digital cameras that were announced, respectively, in January 2014 and April 2014. Both the X-T1 and the A7S are mirrorless interchangeable lens cameras that are based on an APS-C (X-T1) and a full frame (A7S) sensor. The Fujifilm has a resolution of 16 megapixels, whereas the Sony provides 12 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-T1 and the Sony Alpha A7S? 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-T1 and the Sony A7S is provided in the side-by-side display below. The two cameras are presented according to their relative size. 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.
The X-T1 can be obtained in two different colors (black, silver), while the A7S 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 A7S is somewhat larger (3 percent) than the Fujifilm X-T1. Moreover, the A7S is markedly heavier (11 percent) than the X-T1. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.
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-T1) and the Sony FE Lens Catalog (A7S). 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-T1 gets 350 shots out of its NP-W126 battery, while the A7S can take 380 images on a single charge of its NP-FW50 power pack. The power pack in the A7S can be charged via the USB port, 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, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.
|Fujifilm X-T1||5.1 in||3.5 in||1.9 in||15.5 oz||350||Y||Jan 2014||1,299|
|Sony A7S||5.0 in||3.7 in||1.9 in||17.2 oz||380||Y||Apr 2014||2,499|
|Fujifilm X-Pro2||5.6 in||3.3 in||1.8 in||17.5 oz||350||Y||Jan 2016||1,699|
|Fujifilm X-T2||5.2 in||3.6 in||1.9 in||17.9 oz||340||Y||Jul 2016||1,599|
|Fujifilm X-A2||4.6 in||2.6 in||1.6 in||12.3 oz||410||n||Jan 2015||399|
|Fujifilm X-T10||4.6 in||3.3 in||1.6 in||13.4 oz||350||n||May 2015||799|
|Fujifilm X100T||5.0 in||2.9 in||2.0 in||15.5 oz||330||n||Sep 2014||1,299|
|Fujifilm X100S||5.0 in||2.9 in||2.1 in||15.7 oz||330||n||Jan 2013||1,299|
|Fujifilm X-A1||4.6 in||2.6 in||1.5 in||11.6 oz||350||n||Sep 2013||399|
|Fujifilm X-E2||5.1 in||3.0 in||1.5 in||12.3 oz||350||n||Oct 2013||999|
|Fujifilm X-M1||4.6 in||2.6 in||1.5 in||11.6 oz||350||n||Jun 2013||699|
|Fujifilm X-Pro1||5.5 in||3.2 in||1.7 in||15.9 oz||300||n||Jan 2012||1,699|
|Nikon Df||5.7 in||4.3 in||2.6 in||26.8 oz||1400||Y||Nov 2013||2,749|
|Sony A7S II||5.0 in||3.8 in||2.4 in||22.1 oz||370||Y||Sep 2015||2,999|
|Sony A7 II||5.0 in||3.8 in||2.4 in||21.1 oz||350||Y||Nov 2014||1,999|
|Sony A7||5.0 in||3.7 in||1.9 in||16.7 oz||340||Y||Oct 2013||1,699|
|Sony A7R||5.0 in||3.7 in||1.9 in||16.4 oz||340||Y||Oct 2013||2,299|
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.
Any camera decision will naturally be influenced heavily by the price. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The X-T1 was launched at a markedly lower price (by 48 percent) than the A7S, 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.
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. 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-T1 features an APS-C sensor and the Sony A7S a full frame sensor. The sensor area in the A7S is 133 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.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors.
Despite having a smaller sensor, the Fujifilm X-T1 offers a higher resolution of 16 megapixels, compared with 12 MP of the Sony A7S. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 4.80μm versus 8.45μm for the A7S). 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 X-T1 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Fujifilm X-T1 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the X-T1 for good quality output (200 dots per inch) amounts to 24.5 x 16.3 inches or 62.2 x 41.5 cm, for very good quality (250 dpi) 19.6 x 13.1 inches or 49.7 x 33.2 cm, and for excellent quality (300 dpi) 16.3 x 10.9 inches or 41.5 x 27.6 cm. The corresponding values for the Sony A7S are 21.2 x 14.2 inches or 53.8 x 36 cm for good quality, 17 x 11.3 inches or 43.1 x 28.8 cm for very good quality, and 14.1 x 9.4 inches or 35.9 x 24 cm for excellent quality prints.
The X-T1 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Fujifilm X-T1 has a native sensitivity range from ISO 200 to ISO 6400, which can be extended to ISO 100-51200. The corresponding ISO settings for the Sony Alpha A7S are ISO 100 to ISO 102400, with the possibility to increase the ISO range to 50-409600.
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Sony A7S||Full Frame||12.0||4240||2832||1080/60p||23.9||13.2||3702||87|
|Nikon Df||Full Frame||16.2||4928||3280||none||24.6||13.1||3279||89|
|Sony A7S II||Full Frame||12.0||4240||2832||4K/30p||23.6||13.3||2993||85|
|Sony A7 II||Full Frame||24.0||6000||4000||1080/60p||24.9||13.6||2449||90|
|Sony A7||Full Frame||24.0||6000||4000||1080/60p||24.8||14.2||2248||90|
|Sony A7R||Full Frame||36.2||7360||4912||1080/60p||25.6||14.1||2746||95|
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).
Beyond 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 A7S offers a slightly higher resolution than the one in the X-T1 (2400k vs 2360k dots). The following table reports on some other key feature differences and similarities of the Fujifilm X-T1, the Sony A7S, and comparable cameras.
|Sony A7S II||2400||n||3.0||1229||tilting||n||1/8000s||5.0||n||Y|
|Sony A7 II||2400||n||3.0||1230||tilting||n||1/8000s||5.0||n||Y|
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-T1 has 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-T1 writes its imaging data to SDXC cards, while the A7S uses SDXC or Memory Stick PRO Duo cards. The X-T1 supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the A7S 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-T1 and Sony Alpha A7S and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
|Sony A7S II||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-|
|Sony A7 II||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-|
It is notable that the A7S has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The X-T1 lacks such a headphone port.
Studio photographers will appreciate that the Fujifilm X-T1 (unlike the A7S) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the X-T1 and the A7S have been discontinued, but can regularly be found used on eBay. The X-T1 was replaced by the Fujifilm X-T2, while the A7S was followed by the Sony A7S II. 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-T1 or the Sony A7S – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of the Fujifilm X-T1:
- More detail: Offers more megapixels (16 vs 12MP) with a 15% higher linear resolution.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.77x vs 0.71x).
- More detailed LCD: Has a higher resolution rear screen (1040k vs 921k dots).
- Faster burst: Shoots at higher frequency (8 vs 5 flaps/sec) to capture the decisive moment.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Less heavy: Is lighter (by 49g or 10 percent) and hence easier to carry around.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
- More affordable: Was introduced into a lower priced category (48 percent cheaper at launch).
Reasons to prefer the Sony Alpha A7S:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
- Richer colors: The pixel size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Easier travel charging: Can be conveniently charged via its USB port.
- Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
If the count of individual advantages (bullet points above) is taken as a guide, the X-T1 emerges as the winner of the contest (11 : 9 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. A professional wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro 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-T1 and the Sony A7S 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 remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the X-T1 or the A7S. 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 where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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.
|Fujifilm X-T1||+ +||84/100||5/5||4/5||5/5||Jan 2014||1,299|
|Sony A7S||..||86/100||4.5/5||4.5/5||5/5||Apr 2014||2,499|
|Fujifilm X-Pro2||+||83/100||4.5/5||4.5/5||4.5/5||Jan 2016||1,699|
|Fujifilm X-T2||+ +||86/100||4.5/5||5/5||5/5||Jul 2016||1,599|
|Fujifilm X-A2||..||..||4.5/5||4/5||4.5/5||Jan 2015||399|
|Fujifilm X-T10||+ +||80/100||5/5||4/5||5/5||May 2015||799|
|Fujifilm X100T||+||81/100||4.5/5||4.5/5||5/5||Sep 2014||1,299|
|Fujifilm X100S||+ +||81/100||4.5/5||4/5||5/5||Jan 2013||1,299|
|Fujifilm X-A1||..||..||4.5/5||..||4.5/5||Sep 2013||399|
|Fujifilm X-E2||..||80/100||4.5/5||..||5/5||Oct 2013||999|
|Fujifilm X-M1||+||77/100||4.5/5||..||4.5/5||Jun 2013||699|
|Fujifilm X-Pro1||+ +||79/100||4.5/5||4/5||4.5/5||Jan 2012||1,699|
|Nikon Df||..||81/100||4/5||4/5||4/5||Nov 2013||2,749|
|Sony A7S II||+||..||4.5/5||5/5||5/5||Sep 2015||2,999|
|Sony A7 II||+||82/100||4.5/5||5/5||5/5||Nov 2014||1,999|
|Sony A7||+ +||80/100||5/5||4.5/5||5/5||Oct 2013||1,699|
|Sony A7R||+ +||82/100||4.5/5||5/5||5/5||Oct 2013||2,299|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. 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. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.
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 your choice using the following search menu. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
- Canon 1D C vs Fujifilm X-T1
- Canon 7D vs Sony A7S
- Canon SX420 vs Fujifilm X-T1
- Canon SX60 vs Sony A7S
- Fujifilm X-T1 vs Nikon Z6
- Fujifilm X-T1 vs Panasonic GF1
- Fujifilm X-T1 vs Panasonic GF2
- Fujifilm X-T1 vs Sony A6500
- Nikon B600 vs Sony A7S
- Nikon D7200 vs Sony A7S
- Olympus E-M5 II vs Sony A7S
- Sony A7S vs Sony RX1R II
Specifications: Fujifilm X-T1 vs Sony A7S
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-T1||Sony A7S|
|Camera Type||Mirrorless system camera||Mirrorless system camera|
|Camera Lens||Fujifilm X mount lenses||Sony E mount lenses|
|Launch Date||January 2014||April 2014|
|Launch Price||USD 1,299||USD 2,499|
|Sensor Specs||Fujifilm X-T1||Sony A7S|
|Sensor Format||APS-C Sensor||Full Frame Sensor|
|Sensor Size||23.6 x 15.6 mm||35.8 x 23.9 mm|
|Sensor Area||368.16 mm2||855.62 mm2|
|Sensor Diagonal||28.3 mm||43 mm|
|Sensor Resolution||16 Megapixels||12 Megapixels|
|Image Resolution||4896 x 3264 pixels||4240 x 2832 pixels|
|Pixel Pitch||4.80 μm||8.45 μm|
|Pixel Density||4.34 MP/cm2||1.40 MP/cm2|
|Moiré control||no AA filter||Anti-Alias filter|
|Movie Capability||1080/60p Video||1080/60p Video|
|ISO Setting||200 - 6,400 ISO||100 - 102,400 ISO|
|ISO Boost||100 - 51,200 ISO||50 - 409,600 ISO|
|Image Processor||EXR Processor II||BIONZ X|
|DXO Sensor Quality (score)||..||87|
|DXO Color Depth (bits)||..||23.9|
|DXO Dynamic Range (EV)||..||13.2|
|DXO Low Light (ISO)||..||3702|
|Screen Specs||Fujifilm X-T1||Sony A7S|
|Viewfinder Type||Electronic viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||2360k dots||2400k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1040k dots||921k dots|
|LCD Attachment||Tilting screen||Tilting screen|
|Shooting Specs||Fujifilm X-T1||Sony A7S|
|Focus System||On-Sensor Phase-detect||Contrast-detect AF|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/8000s|
|Continuous Shooting||8 shutter flaps/s||5 shutter flaps/s|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|Fill Flash||no On-Board Flash||no On-Board Flash|
|Storage Medium||SDXC cards||MS or SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-II||UHS-I|
|Connectivity Specs||Fujifilm X-T1||Sony A7S|
|Studio Flash||PC Sync socket||no PC Sync|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||micro HDMI|
|Microphone Port||External MIC port||External MIC port|
|Headphone Socket||no Headphone port||Headphone port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Near-Field Communication||no NFC||NFC built-in|
|Body Specs||Fujifilm X-T1||Sony A7S|
|Environmental Sealing||Weathersealed body||Weathersealed body|
|Battery Life (CIPA)||350 shots per charge||380 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
129 x 90 x 47 mm
(5.1 x 3.5 x 1.9 in)
127 x 94 x 48 mm
(5.0 x 3.7 x 1.9 in)
|Camera Weight||440 g (15.5 oz)||489 g (17.2 oz)|
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