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Fujifilm X100S vs Sony A7S II

The Fujifilm X100S and the Sony Alpha 7S II are two digital cameras that were officially introduced, respectively, in January 2013 and September 2015. The X100S is a fixed lens compact, while the A7S II is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (X100S) and a full frame (A7S II) 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.

Headline Specifications
Fujifilm X100S   Sony A7S II
Fujifilm X100S Sony A7S II
Fixed lens compact camera Mirrorless system camera
35mm f/2.0 Sony E mount lenses
16 MP, APS-C Sensor 12 MP, Full Frame Sensor
1080/60p Video 4K/30p Video
ISO 200-6400 (100-25600) ISO 100-102400 (50-409600)
Electronic viewfinder (2360k dots) Electronic viewfinder (2400k dots)
2.8" LCD, 460k dots 3.0" LCD, 1229k dots
Fixed screen (not touch-sensitive) Tilting screen (not touch-sensitive)
6 shutter flaps per second 5 shutter flaps per second
No shake reductionIn-body stabilization
Not weather sealedWeathersealed body
330 shots per battery charge370 shots per battery charge
127 x 74 x 54 mm, 445 g 127 x 96 x 60 mm, 627 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm X100S and the Sony Alpha 7S II? 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.

Body comparison

An illustration of the physical size and weight of the Fujifilm X100S and the Sony A7S II is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth dimensions are rounded to the nearest millimeter.

The X100S can be obtained in two different colors (black, silver), while the A7S II is only available in black.

Size Fujifilm X100S vs Sony A7S II
Compare X100S versus A7S II top
Comparison X100S or A7S II rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7S II is notably larger (30 percent) than the Fujifilm X100S. It is noteworthy in this context that the A7S II is splash and dust-proof, while the X100S does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the X100S has a lens built in, whereas the A7S II is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the A7S II and their specifications in the Sony FE Lens Catalog.

Concerning battery life, the X100S gets 330 shots out of its NP-95 battery, while the A7S II can take 370 images on a single charge of its NP-FW50 power pack. The power pack in the A7S II 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 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 camera comparisons there.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Fujifilm X100S» 5.0 in 2.9 in 2.1 in 15.7 oz 330 n Jan 2013 1,299- i Fujifilm X100S
 
Sony A7S II« 5.0 in 3.8 in 2.4 in 22.1 oz 370 Y Sep 2015 2,999 i i Sony A7S II
 
Canon G1 X« » 4.6 in 3.2 in 2.6 in 18.8 oz 250 n Jan 2012 799- i Canon G1 X
 
Fujifilm X100F« » 5.0 in 3.0 in 2.0 in 16.5 oz 390 n Jan 2017 1,299 i i Fujifilm X100F
 
Fujifilm X-T10« » 4.6 in 3.3 in 1.6 in 13.4 oz 350 n May 2015 799- i Fujifilm X-T10
 
Fujifilm X30« » 4.7 in 2.8 in 2.4 in 14.9 oz 470 n Aug 2014 599 i i Fujifilm X30
 
Fujifilm X100T« » 5.0 in 2.9 in 2.0 in 15.5 oz 330 n Sep 2014 1,299- i Fujifilm X100T
 
Fujifilm X-T1« » 5.1 in 3.5 in 1.9 in 15.5 oz 350 Y Jan 2014 1,299- i Fujifilm X-T1
 
Fujifilm X-Pro1« » 5.5 in 3.2 in 1.7 in 15.9 oz 300 n Jan 2012 1,699- i Fujifilm X-Pro1
 
Fujifilm X100« » 5.0 in 3.0 in 2.1 in 15.7 oz 300 n Sep 2010 1,199- i Fujifilm X100
 
Leica X Typ 113« » 5.2 in 2.9 in 3.1 in 17.1 oz 350 n Sep 2014 2,295 i i Leica X Typ 113
 
Nikon Coolpix A« » 4.4 in 2.5 in 1.6 in 10.5 oz 230 n Mar 2013 1,099- i Nikon Coolpix A
 
Sony A7R IV« » 5.1 in 3.8 in 3.1 in 23.5 oz 670 Y Jul 2019 3,499 i i Sony A7R IV
 
Sony A7R III« » 5.0 in 3.8 in 2.9 in 22.9 oz 650 Y Oct 2017 3,199- i Sony A7R III
 
Sony A7R II« » 5.0 in 3.8 in 2.4 in 22.0 oz 290 Y Jun 2015 3,199- i Sony A7R II
 
Sony A7 II« » 5.0 in 3.8 in 2.4 in 21.1 oz 350 Y Nov 2014 1,999- i Sony A7 II
 
Sony A7S« » 5.0 in 3.7 in 1.9 in 17.2 oz 380 Y Apr 2014 2,499- i Sony A7S
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The X100S was launched at a lower price than the A7S II, despite having a lens built in. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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.

 

Sensor comparison

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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Fujifilm X100S features an APS-C sensor and the Sony A7S II a full frame sensor. The sensor area in the A7S II is 130 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.

Fujifilm X100S and Sony A7S II sensor measures

Despite having a smaller sensor, the Fujifilm X100S offers a higher resolution of 16 megapixels, compared with 12 MP of the Sony A7S II. 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 8.40μm for the A7S II). Moreover, it should be noted that the A7S II is much more recent (by 2 years and 8 months) than the X100S, 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 X100S has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Fujifilm X100S implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the X100S for good quality output (200 dots per inch) amounts to 24.5 x 16.3 inch or 62.2 x 41.5 cm, for very good quality (250 dpi) 19.6 x 13.1 inch or 49.7 x 33.2 cm, and for excellent quality (300 dpi) 16.3 x 10.9 inch or 41.5 x 27.6 cm. The corresponding values for the Sony A7S II are 21.2 x 14.2 inch or 53.8 x 36 cm for good quality, 17 x 11.3 inch or 43.1 x 28.8 cm for very good quality, and 14.1 x 9.4 inch or 35.9 x 24 cm for excellent quality prints.

The X100S has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Fujifilm X100S 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 Sony Alpha 7S II are ISO 100 to ISO 102400, with the possibility to increase the ISO range to 50-409600.

X100S versus A7S II MP

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 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
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
 
Fujifilm X100S» APS-C 16.0 4896 32641080/60p----Fujifilm X100S
 
Sony A7S II« Full Frame 12.0 4240 28324K/30p23.613.3299385Sony A7S II
 
Canon G1 X« » 1.5-inch 14.2 4352 32641080/24p21.710.864460Canon G1 X
 
Fujifilm X100F« » APS-C 24.0 6000 40001080/60p----Fujifilm X100F
 
Fujifilm X-T10« » APS-C 16.0 4896 32641080/60p----Fujifilm X-T10
 
Fujifilm X30« » 2/3 12.0 4000 30001080/60p----Fujifilm X30
 
Fujifilm X100T« » APS-C 16.0 4896 32641080/60p----Fujifilm X100T
 
Fujifilm X-T1« » APS-C 16.0 4896 32641080/60p----Fujifilm X-T1
 
Fujifilm X-Pro1« » APS-C 16.0 4896 32641080/24p----Fujifilm X-Pro1
 
Fujifilm X100« » APS-C 12.2 4288 2848720/30p22.912.4100173Fujifilm X100
 
Leica X Typ 113« » APS-C 16.1 4928 32641080/30p----Leica X Typ 113
 
Nikon Coolpix A« » APS-C 16.1 4928 32641080/30p23.413.8116480Nikon Coolpix A
 
Sony A7R IV« » Full Frame 60.2 9504 63364K/30p----Sony A7R IV
 
Sony A7R III« » Full Frame 42.2 7952 53044K/30p26.014.73523100Sony A7R III
 
Sony A7R II« » Full Frame 42.2 7952 53044K/30p26.013.9343498Sony A7R II
 
Sony A7 II« » Full Frame 24.0 6000 40001080/60p24.913.6244990Sony A7 II
 
Sony A7S« » Full Frame 12.0 4240 28321080/60p23.913.2370287Sony A7S

Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the A7S II provides a better video resolution than the X100S. It can shoot movie footage at 4K/30p, while the Fujifilm is limited to 1080/60p.

 

Feature comparison

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 II offers a slightly higher resolution than the one in the X100S (2400k vs 2360k dots). The adjacent table lists some of the other core features of the Fujifilm X100S and Sony A7S II along with similar information for a selection of comparators.

Core Features
  Camera
Model
Viewfinder
(Type or
'000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
Camera
Model
 
Fujifilm X100S»2360 n 2.8 460 fixed n 1/4000s 6.0 Y n Fujifilm X100S
 
Sony A7S II«2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y Sony A7S II
 
Canon G1 X« »optical n 3.0 922 Swivel n 1/4000s 1.9 Y Y Canon G1 X
 
Fujifilm X100F« »2360 n 3.0 1040 fixed n 1/4000s 8.0 Y n Fujifilm X100F
 
Fujifilm X-T10« »2360 n 3.0 920 tilting n 1/4000s 8.0 Y n Fujifilm X-T10
 
Fujifilm X30« »2360 n 3.0 920 tilting n 1/4000s 12.0 Y Y Fujifilm X30
 
Fujifilm X100T« »2360 n 3.0 1040 fixed n 1/4000s 6.0 Y n Fujifilm X100T
 
Fujifilm X-T1« »2360 n 3.0 1040 tilting n 1/4000s 8.0 n n Fujifilm X-T1
 
Fujifilm X-Pro1« »1440 n 3.0 1230 fixed n 1/4000s 6.0 n n Fujifilm X-Pro1
 
Fujifilm X100« »1440 n 2.8 460 fixed n 1/4000s 5.0 Y n Fujifilm X100
 
Leica X Typ 113« »- n 3.0 920 fixed n 1/2000s 5.0 Y n Leica X Typ 113
 
Nikon Coolpix A« »- n 3.0 921 fixed n 1/2000s 4.0 Y n Nikon Coolpix A
 
Sony A7R IV« »5760 n 3.0 1440 tilting Y 1/8000s 10.0 n Y Sony A7R IV
 
Sony A7R III« »3686 n 3.0 1440 tilting Y 1/8000s 10.0 n Y Sony A7R III
 
Sony A7R II« »2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y Sony A7R II
 
Sony A7 II« »2400 n 3.0 1230 tilting n 1/8000s 5.0 n Y Sony A7 II
 
Sony A7S« »2400 n 3.0 921 tilting n 1/8000s 5.0 n n Sony A7S

One difference between the cameras concerns the presence of an on-board flash. The X100S has one, while the A7S II does not. While the built-in flash of the X100S is not very powerful, it can at times be useful as a fill-in light.

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, the A7S II is one of those camera that have an additional 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 X100S writes its imaging data to SDXC cards, while the A7S II uses SDXC or Memory Stick PRO Duo cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

 

Connectivity comparison

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 X100S and Sony Alpha 7S II and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Fujifilm X100S»Ystereomono--micro2.0---Fujifilm X100S
 
Sony A7S II«YstereomonoYYmicro2.0YY-Sony A7S II
 
Canon G1 X« »Ystereomono--mini2.0---Canon G1 X
 
Fujifilm X100F« »YstereomonoY-micro2.0Y--Fujifilm X100F
 
Fujifilm X-T10« »YstereomonoY-micro2.0Y--Fujifilm X-T10
 
Fujifilm X30« »Ystereomono--micro2.0Y--Fujifilm X30
 
Fujifilm X100T« »YstereomonoY-micro2.0Y--Fujifilm X100T
 
Fujifilm X-T1« »YstereomonoY-mini2.0Y--Fujifilm X-T1
 
Fujifilm X-Pro1« »Ystereomono--mini2.0---Fujifilm X-Pro1
 
Fujifilm X100« »Ystereo---mini2.0---Fujifilm X100
 
Leica X Typ 113« »Ystereomono--mini2.0---Leica X Typ 113
 
Nikon Coolpix A« »Ystereomono---2.0---Nikon Coolpix A
 
Sony A7R IV« »YstereomonoYYmicro3.1YYYSony A7R IV
 
Sony A7R III« »YstereomonoYYmicro3.1YYYSony A7R III
 
Sony A7R II« »YstereomonoYYmicro2.0YY-Sony A7R II
 
Sony A7 II« »YstereomonoYYmicro2.0YY-Sony A7 II
 
Sony A7S« »YstereomonoYYmicro2.0YY-Sony A7S

It is notable that the A7S II offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the X100S does not offer wifi capability.

The A7S II is a recent model that features in the current product line-up of Sony. In contrast, the X100S has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the X100S was succeeded by the Fujifilm X100T. 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.


Review summary

So what conclusions can be drawn? Is the Fujifilm X100S better than the Sony A7S II or vice versa? A synthesis of the relative strong points of each of the models is listed below.

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Arguments in favor of the Fujifilm X100S:

  • 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.
  • Faster burst: Shoots at higher frequency (6 vs 5 flaps/sec) to capture the decisive moment.
  • Ready to shoot: Has a lens built-in, whereas the A7S II requires a separate lens.
  • More compact: Is smaller (127x74mm vs 127x96mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the A7S II).
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More heavily discounted: Has been available for much longer (launched in January 2013).

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Advantages of the Sony Alpha 7S II:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • 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 (4K/30p vs 1080/60p).
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.43x).
  • Larger screen: Has a bigger rear LCD (3.0" vs 2.8") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1229k vs 460k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
  • Longer lasting: Gets more shots (370 versus 330) out of a single battery charge.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • 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.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • More modern: Reflects 2 years and 8 months of technical progress since the X100S launch.

If the count of relative strengths (bullet points above) is taken as a measure, the A7S II is the clear winner of the contest (21 : 10 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 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.

X100S 10:21 A7S II

How about other alternatives? Do the specifications of the Fujifilm X100S and the Sony A7S II place the cameras among the top in their class? Find out in the latest Best Prime Lens Compact Camera and Best Mirrorless Interchangeable Lens Camera listings 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 X100S or the A7S II. 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.

Expert reviews

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 (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.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Fujifilm X100S»+ +81/1004.5/54/55/5 Jan 2013 1,299- i Fujifilm X100S
 
Sony A7S II«+-4.5/55/55/5 Sep 2015 2,999 i i Sony A7S II
 
Canon G1 X« »+76/1004/54/54.5/5 Jan 2012 799- i Canon G1 X
 
Fujifilm X100F« »+83/1004.5/5-4.5/5 Jan 2017 1,299 i i Fujifilm X100F
 
Fujifilm X-T10« »+ +80/1005/54/55/5 May 2015 799- i Fujifilm X-T10
 
Fujifilm X30« »-76/1004.5/54/54.5/5 Aug 2014 599 i i Fujifilm X30
 
Fujifilm X100T« »+81/1004.5/54.5/55/5 Sep 2014 1,299- i Fujifilm X100T
 
Fujifilm X-T1« »+ +84/1005/54/55/5 Jan 2014 1,299- i Fujifilm X-T1
 
Fujifilm X-Pro1« »+ +79/1004.5/54/54.5/5 Jan 2012 1,699- i Fujifilm X-Pro1
 
Fujifilm X100« »-75/1004/54/55/5 Sep 2010 1,199- i Fujifilm X100
 
Leica X Typ 113« »--3.5/5-4/5 Sep 2014 2,295 i i Leica X Typ 113
 
Nikon Coolpix A« »+75/1004/54.5/54/5 Mar 2013 1,099- i Nikon Coolpix A
 
Sony A7R IV« »+---5/5 Jul 2019 3,499 i i Sony A7R IV
 
Sony A7R III« »+ +90/1004.5/55/55/5 Oct 2017 3,199- i Sony A7R III
 
Sony A7R II« »+ +90/1005/54.5/55/5 Jun 2015 3,199- i Sony A7R II
 
Sony A7 II« »+82/1004.5/55/55/5 Nov 2014 1,999- i Sony A7 II
 
Sony A7S« »-86/1004.5/54.5/55/5 Apr 2014 2,499- i Sony A7S
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. Hence, a score should always be seen in the context of the camera's market launch date and its price, 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.

Fujifilm X100S:
Check Ebay offers
Sony A7S II:
Check Amazon price

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. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications: Fujifilm X100S vs Sony A7S II

    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 Specifications
    Camera Model Fujifilm X100S Sony A7S II
    Camera Type Fixed lens compact camera Mirrorless system camera
    Camera Lens 35mm f/2.0 Sony E mount lenses
    Launch Date January 2013 September 2015
    Launch Price USD 1299 USD 2999
    Sensor Specs Fujifilm X100S Sony A7S II
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor Full Frame Sensor
    Sensor Size 23.6 x 15.6 mm 35.6 x 23.8 mm
    Sensor Area 368.16 mm2 847.28 mm2
    Sensor Diagonal 28.3 mm 42.8 mm
    Crop Factor 1.5x 1.0x
    Sensor Resolution 16 Megapixels 12 Megapixels
    Image Resolution 4896 x 3264 pixels 4240 x 2832 pixels
    Pixel Pitch 4.80 μm 8.40 μm
    Pixel Density 4.34 MP/cm2 1.42 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 1080/60p Video 4K/30p Video
    ISO Setting 200-6400 ISO 100-102400 ISO
    ISO Boost 100-25600 ISO 50-409600 ISO
    Image Processor EXR Processor II BIONZ X
    DXO Sensor Quality (score) .. 85
    DXO Color Depth (bits) .. 23.6
    DXO Dynamic Range (EV) .. 13.3
    DXO Low Light (ISO) .. 2993
    Screen Specs Fujifilm X100S Sony A7S II
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.43x 0.78x
    Viewfinder Resolution 2360k dots 2400k dots
    LCD Framing Live View Live View
    Rear LCD Size 2.8 inch 3.0 inch
    LCD Resolution 460k dots 1229k dots
    LCD Attachment Fixed screen Tilting screen
    Shooting Specs Fujifilm X100S Sony A7S II
    Autofocus System On-Sensor Phase-detect Contrast-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/4000/s 1/8000/s
    Continuous Shooting 6 shutter flaps/s 5 shutter flaps/s
    Electronic Shutterno E-ShutterYES
    Image StabilizationNo shake reductionIn-body stabilization
    Fill Flash Build-in 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-I UHS-I
    Connectivity Specs Fujifilm X100S Sony A7S II
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI micro HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Body Specs Fujifilm X100S Sony A7S II
    Environmental SealingNot weather sealedWeathersealed body
    Battery Type NP-95 NP-FW50
    Battery Life (CIPA)330 shots per charge370 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 127 x 74 x 54 mm
    (5.0 x 2.9 x 2.1 in)
    127 x 96 x 60 mm
    (5.0 x 3.8 x 2.4 in)
    Camera Weight 445 g (15.7 oz) 627 g (22.1 oz)

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