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Fujifilm X100 vs Sony A7 III

The Fujifilm FinePix X100 and the Sony Alpha A7 III are two enthusiast cameras that were announced, respectively, in September 2010 and February 2018. The X100 is a fixed lens compact, while the A7 III is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (X100) and a full frame (A7 III) sensor. The Fujifilm has a resolution of 12.2 megapixels, whereas the Sony provides 24 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Fujifilm X100 VS Sony A7 III
Fujifilm X100 Sony A7 III
Fixed lens compact camera Mirrorless system camera
35mm f/2.0 Sony E mount lenses
12.2 MP, APS-C Sensor 24 MP, Full Frame Sensor
720/30p Video 4K/30p Video
ISO 200-6400 (100-12800) ISO 100-51200 (50-204800)
Electronic viewfinder (1440k dots) Electronic viewfinder (2359k dots)
2.8" LCD, 460k dots 3.0" LCD, 922k dots
Fixed screen (not touch-sensitive) Tilting touchscreen
5 shutter flaps per second 10 shutter flaps per second
No shake reductionIn-body stabilization
Not weather sealedWeathersealed body
300 shots per battery charge610 shots per battery charge
126 x 75 x 54 mm, 445 g 127 x 96 x 74 mm, 650 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm FinePix X100 and the Sony Alpha A7 III? 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

The side-by-side display below illustrates the physical size and weight of the Fujifilm X100 and the Sony A7 III. 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 size dimensions are rounded to the nearest millimeter.

Size Fujifilm X100 vs Sony A7 III
Compare X100 versus A7 III top
Comparison X100 or A7 III rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7 III is notably larger (29 percent) than the Fujifilm X100. It is noteworthy in this context that the A7 III is splash and dust-proof, while the X100 does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the X100 has a lens built in, whereas the A7 III 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 A7 III and their specifications in the Sony FE Lens Catalog.

Concerning battery life, the X100 gets 300 shots out of its NP-95 battery, while the A7 III can take 610 images on a single charge of its NP-FZ100 power pack. The power pack in the A7 III can be charged via the USB port, which can be very convenient when travelling.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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.

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)
Camera
Model
 
Fujifilm X100» 5.0 in 3.0 in 2.1 in 15.7 oz 300 n Sep 2010 1,199iFujifilm X100
 
Sony A7 III« 5.0 in 3.8 in 2.9 in 22.9 oz 610 Y Feb 2018 1,999 iSony A7 III
 
Canon 6D Mark II« » 5.7 in 4.4 in 3.0 in 27.0 oz 1200 Y Jun 2017 1,999 iCanon 6D Mark II
 
Canon G1 X« » 4.6 in 3.2 in 2.6 in 18.8 oz 250 n Jan 2012 799iCanon G1 X
 
Fujifilm X100F« » 5.0 in 3.0 in 2.0 in 16.5 oz 390 n Jan 2017 1,299iFujifilm X100F
 
Fujifilm X30« » 4.7 in 2.8 in 2.4 in 14.9 oz 470 n Aug 2014 599 iFujifilm X30
 
Fujifilm X100T« » 5.0 in 2.9 in 2.0 in 15.5 oz 330 n Sep 2014 1,299iFujifilm X100T
 
Fujifilm X100S« » 5.0 in 2.9 in 2.1 in 15.7 oz 330 n Jan 2013 1,299iFujifilm X100S
 
Leica D-LUX Typ 109« » 4.6 in 2.6 in 2.2 in 14.3 oz 300 n Sep 2014 1,195iLeica D-LUX Typ 109
 
Nikon D3100« » 4.9 in 3.8 in 3.0 in 17.8 oz 550 n Aug 2010 599iNikon D3100
 
Nikon D3000« » 5.0 in 3.8 in 2.5 in 18.9 oz 500 n Jul 2009 599iNikon D3000
 
Panasonic LX100« » 4.5 in 2.6 in 2.2 in 13.9 oz 300 n Sep 2014 899 iPanasonic LX100
 
Sony A9 II« » 5.1 in 3.8 in 3.0 in 23.9 oz 690 Y Oct 2019 4,499 iSony A9 II
 
Sony A9« » 5.0 in 3.8 in 2.5 in 23.7 oz 650 Y Apr 2017 4,499iSony A9
 
Sony A7 II« » 5.0 in 3.8 in 2.4 in 21.1 oz 350 Y Nov 2014 1,999iSony A7 II
 
Sony A7« » 5.0 in 3.7 in 1.9 in 16.7 oz 340 Y Oct 2013 1,699iSony A7
 
Sony NEX-7« » 4.7 in 2.6 in 1.7 in 14.1 oz 430 n Aug 2011 1,349iSony NEX-7
Note: Measurements and pricing do not include easily detachable parts, such as 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 X100 was launched at a lower price than the A7 III, despite having a lens built in. 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 imaging sensor is a crucial determinant 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 X100 features an APS-C sensor and the Sony A7 III a full frame sensor. The sensor area in the A7 III is 127 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 X100 and Sony A7 III sensor measures

With 24MP, the A7 III offers a higher resolution than the X100 (12.2MP), but the A7 III nevertheless has larger individual pixels (pixel pitch of 5.94μm versus 5.53μm for the X100) due to its larger sensor. Moreover, the A7 III is a much more recent model (by 7 years and 5 months) than the X100, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units.

The resolution advantage of the Sony A7 III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7 III for good quality output (200 dots per inch) amounts to 30 x 20 inch or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inch or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inch or 50.8 x 33.9 cm. The corresponding values for the Fujifilm X100 are 21.4 x 14.2 inch or 54.5 x 36.2 cm for good quality, 17.2 x 11.4 inch or 43.6 x 28.9 cm for very good quality, and 14.3 x 9.5 inch or 36.3 x 24.1 cm for excellent quality prints.

The A7 III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Fujifilm FinePix X100 has a native sensitivity range from ISO 200 to ISO 6400, which can be extended to ISO 100-12800. The corresponding ISO settings for the Sony Alpha A7 III are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 50-204800.

X100 versus A7 III MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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"). Of the two cameras under consideration, the A7 III offers substantially better image quality than the X100 (overall score 23 points higher). The advantage is based on 2.1 bits higher color depth, 2.3 EV in additional dynamic range, and 1.9 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar 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 X100 APS-C 12.2 4288 2848720/30p22.912.4100173Fujifilm X100
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096Sony A7 III
 
Canon 6D Mark II Full Frame 26.0 6240 41601080/60p24.411.9286285Canon 6D Mark 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 X30 2/3 12.0 4000 30001080/60p........Fujifilm X30
 
Fujifilm X100T APS-C 16.0 4896 32641080/60p........Fujifilm X100T
 
Fujifilm X100S APS-C 16.0 4896 32641080/60p........Fujifilm X100S
 
Leica D-LUX Typ 109 Four Thirds 12.7 4112 30884K/30p........Leica D-LUX Typ 109
 
Nikon D3100 APS-C 14.2 4608 30721080/24p22.511.391967Nikon D3100
 
Nikon D3000 APS-C 10.0 3872 2592none22.311.156362Nikon D3000
 
Panasonic LX100 Four Thirds 12.7 4112 30884K/30p22.312.555367Panasonic LX100
 
Sony A9 II Full Frame 24.0 6000 40004K/30p25.014.0343493Sony A9 II
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792Sony A9
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990Sony A7 II
 
Sony A7 Full Frame 24.0 6000 40001080/60p24.814.2224890Sony A7
 
Sony NEX-7 APS-C 24.0 6000 40001080/60i24.113.4101681Sony NEX-7

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 A7 III provides a better video resolution than the X100. It can shoot movie footage at 4K/30p, while the Fujifilm is limited to 720/30p.

 

Feature comparison

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 A7 III offers a substantially higher resolution than the one in the X100 (2359k vs 1440k dots). The adjacent table lists some of the other core features of the Fujifilm X100 and Sony A7 III 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 X1001440 n 2.8 460 fixed n 1/4000s 5.0 Y n Fujifilm X100
 
Sony A7 III2359 n 3.0 922 tilting Y 1/8000s 10.0 n Y Sony A7 III
 
Canon 6D Mark IIoptical Y 3.0 1040 swivel Y 1/4000s 6.5 n n Canon 6D Mark II
 
Canon G1 Xoptical n 3.0 922 Swivel n 1/4000s 1.9 Y Y Canon G1 X
 
Fujifilm X100F2360 n 3.0 1040 fixed n 1/4000s 8.0 Y n Fujifilm X100F
 
Fujifilm X302360 n 3.0 920 tilting n 1/4000s 12.0 Y Y Fujifilm X30
 
Fujifilm X100T2360 n 3.0 1040 fixed n 1/4000s 6.0 Y n Fujifilm X100T
 
Fujifilm X100S2360 n 2.8 460 fixed n 1/4000s 6.0 Y n Fujifilm X100S
 
Leica D-LUX Typ 1092764 n 3.0 921 fixed n 1/4000s 11.0 n Y Leica D-LUX Typ 109
 
Nikon D3100optical n 3.0 230 fixed n 1/4000s 3.0 Y n Nikon D3100
 
Nikon D3000optical n 3.0 230 fixed n 1/4000s 3.0 Y n Nikon D3000
 
Panasonic LX1002764 n 3.0 921 fixed n 1/4000s 11.0 n Y Panasonic LX100
 
Sony A9 II3686 n 3.0 1440 tilting Y 1/8000s 10.0 n Y Sony A9 II
 
Sony A93686 n 3.0 1440 tilting Y 1/8000s 20.0 n Y Sony A9
 
Sony A7 II2400 n 3.0 1230 tilting n 1/8000s 5.0 n Y Sony A7 II
 
Sony A72400 n 3.0 1230 tilting n 1/8000s 5.0 n n Sony A7
 
Sony NEX-72359 n 3.0 921 tilting n 1/4000s 10.0 Y n Sony NEX-7

One difference between the cameras concerns the presence of an on-board flash. The X100 has one, while the A7 III does not. While the built-in flash of the X100 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 A7 III 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 Sony A7 III 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 X100 writes its imaging data to SDXC cards, while the A7 III uses SDXC or Memory Stick PRO Duo cards. The A7 III features dual card slots, which can be very useful in case a memory card fails. In contrast, the X100 only has one slot. The A7 III supports UHS-II cards on its first slot and UHS-I on its second one, while the X100 cannot take advantage of Ultra High Speed SD cards.

 

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 FinePix X100 and Sony Alpha A7 III 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
Port
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Fujifilm X100Ystereonone--mini2.0---Fujifilm X100
 
Sony A7 IIIYstereomonoYYmicro3.1YYYSony A7 III
 
Canon 6D Mark IIYstereomonoY-mini2.0YYYCanon 6D Mark II
 
Canon G1 XYstereomono--mini2.0---Canon G1 X
 
Fujifilm X100FYstereomonoY-micro2.0Y--Fujifilm X100F
 
Fujifilm X30Ystereomono--micro2.0Y--Fujifilm X30
 
Fujifilm X100TYstereomonoY-micro2.0Y--Fujifilm X100T
 
Fujifilm X100SYstereomono--micro2.0---Fujifilm X100S
 
Leica D-LUX Typ 109Ystereomono--micro2.0YY-Leica D-LUX Typ 109
 
Nikon D3100Ymonomono--mini2.0---Nikon D3100
 
Nikon D3000Ynonenone--none2.0---Nikon D3000
 
Panasonic LX100Ystereomono--micro2.0YY-Panasonic LX100
 
Sony A9 IIYstereomonoYYmicro3.1YYYSony A9 II
 
Sony A9YstereomonoYYmicro2.0YYYSony A9
 
Sony A7 IIYstereomonoYYmicro2.0YY-Sony A7 II
 
Sony A7YstereomonoYYmicro2.0YY-Sony A7
 
Sony NEX-7YstereomonoY-mini2.0---Sony NEX-7

It is notable that the A7 III offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the X100 does not offer wifi capability.

The A7 III is a recent model that features in the current product line-up of Sony. In contrast, the X100 has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the X100 was succeeded by the Fujifilm X100S. 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 is the bottom line? Is the Fujifilm X100 better than the Sony A7 III or vice versa? A synthesis of the relative strong points of each of the models is listed below.

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Advantages of the Fujifilm FinePix X100:

  • Ready to shoot: Has a lens built-in, whereas the A7 III requires a separate lens.
  • More compact: Is smaller (126x75mm 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 A7 III).
  • 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 September 2010).

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Arguments in favor of the Sony Alpha A7 III:

  • More detail: Has more megapixels (24 vs 12.2MP), which boosts linear resolution by 40%.
  • Better image quality: Scores substantially higher (23 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (2.1 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (2.3 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (1.9 stops ISO advantage).
  • Better video: Provides higher definition movie capture (4K/30p vs 720/30p).
  • 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.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • More detailed viewfinder: Has higher resolution electronic viewfinder (2359k vs 1440k dots).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.50x).
  • 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 (922k vs 460k dots).
  • 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.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (10 vs 5 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
  • Longer lasting: Gets more shots (610 versus 300) 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.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • 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.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • Faster buffer clearing: Supports Ultra High Speed (UHS-II and UHS-I) SDXC cards.
  • More modern: Reflects 7 years and 5 months of technical progress since the X100 launch.

If the count of individual advantages (bullet points above) is taken as a guide, the A7 III is the clear winner of the contest (30 : 6 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.

X100 06:30 A7 III

How about other alternatives? Do the specifications of the Fujifilm X100 and the Sony A7 III 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 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 X100 and the A7 III 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.

Expert reviews

This is why hands-on reviews by experts are important. 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.

Review Scores
  Camera
Model
cam
era
  labs  
dp
re
  view  
e
photo
  zine  
ima
ging
resource
photo
graphy
  blog  
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Camera
Model
 
Fujifilm X100..75/1004/54/55/5 Sep 2010 1,199iFujifilm X100
 
Sony A7 III+ +89/1005/55/55/5 Feb 2018 1,999 iSony A7 III
 
Canon 6D Mark II+80/1004.5/54/54/5 Jun 2017 1,999 iCanon 6D Mark II
 
Canon G1 X+76/1004/54/54.5/5 Jan 2012 799iCanon G1 X
 
Fujifilm X100F+83/1004.5/5..4.5/5 Jan 2017 1,299iFujifilm X100F
 
Fujifilm X30..76/1004.5/54/54.5/5 Aug 2014 599 iFujifilm X30
 
Fujifilm X100T+81/1004.5/54.5/55/5 Sep 2014 1,299iFujifilm X100T
 
Fujifilm X100S+ +81/1004.5/54/55/5 Jan 2013 1,299iFujifilm X100S
 
Leica D-LUX Typ 109....4.5/5..4.5/5 Sep 2014 1,195iLeica D-LUX Typ 109
 
Nikon D3100+ +72/1004.5/55/54.5/5 Aug 2010 599iNikon D3100
 
Nikon D3000+72/1004/53.5/54.5/5 Jul 2009 599iNikon D3000
 
Panasonic LX100+ +85/1005/54/55/5 Sep 2014 899 iPanasonic LX100
 
Sony A9 II....5/5..5/5 Oct 2019 4,499 iSony A9 II
 
Sony A9+ +89/1005/55/55/5 Apr 2017 4,499iSony A9
 
Sony A7 II+82/1004.5/55/55/5 Nov 2014 1,999iSony A7 II
 
Sony A7+ +80/1005/54.5/55/5 Oct 2013 1,699iSony A7
 
Sony NEX-7+ +81/1004.5/55/55/5 Aug 2011 1,349iSony NEX-7
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted 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 rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Fujifilm X100:
Check Ebay offers
Sony A7 III:
Check Amazon price

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 use the search menu below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Fujifilm X100 vs Sony A7 III

    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 X100 Sony A7 III
    Camera Type Fixed lens compact camera Mirrorless system camera
    Camera Lens 35mm f/2.0 Sony E mount lenses
    Launch Date September 2010 February 2018
    Launch Price USD 1199 USD 1999
    Sensor Specs Fujifilm X100 Sony A7 III
    Sensor Technology CMOS BSI-CMOS
    Sensor Format APS-C Sensor Full Frame Sensor
    Sensor Size 23.6 x 15.8 mm 35.6 x 23.8 mm
    Sensor Area 372.88 mm2 847.28 mm2
    Sensor Diagonal 28.4 mm 42.8 mm
    Crop Factor 1.5x 1.0x
    Sensor Resolution 12.2 Megapixels 24 Megapixels
    Image Resolution 4288 x 2848 pixels 6000 x 4000 pixels
    Pixel Pitch 5.53 μm 5.94 μm
    Pixel Density 3.28 MP/cm2 2.83 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 720/30p Video 4K/30p Video
    ISO Setting 200-6400 ISO 100-51200 ISO
    ISO Boost 100-12800 ISO 50-204800 ISO
    Image Processor EXR Processor BIONZ X
    DXO Sensor Quality (score) 73 96
    DXO Color Depth (bits) 22.9 25.0
    DXO Dynamic Range (EV) 12.4 14.7
    DXO Low Light (ISO) 1001 3730
    Screen Specs Fujifilm X100 Sony A7 III
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.50x 0.78x
    Viewfinder Resolution 1440k dots 2359k dots
    LCD Framing Live View Live View
    Rear LCD Size 2.8 inch 3.0 inch
    LCD Resolution 460k dots 922k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Fujifilm X100 Sony A7 III
    Focus System Contrast-detect AF On-Sensor Phase-detect
    Manual Focusing AidNo Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000/s 1/8000/s
    Continuous Shooting 5 shutter flaps/s 10 shutter flaps/s
    Electronic Shutterno E-ShutterYES
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    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 Dual card slots
    UHS card support no Single UHS-II
    Connectivity Specs Fujifilm X100 Sony A7 III
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 3.1
    HDMI Port mini 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
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Fujifilm X100 Sony A7 III
    Environmental SealingNot weather sealedWeathersealed body
    Battery Type NP-95 NP-FZ100
    Battery Life (CIPA)300 shots per charge610 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 126 x 75 x 54 mm
    (5.0 x 3.0 x 2.1 in)
    127 x 96 x 74 mm
    (5.0 x 3.8 x 2.9 in)
    Camera Weight 445 g (15.7 oz) 650 g (22.9 oz)

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