Fujifilm X100F vs Sony A5100
The Fujifilm X100F and the Sony Alpha A5100 are two digital cameras that were revealed to the public, respectively, in January 2017 and August 2014. The X100F is a fixed lens compact, while the A5100 is a mirrorless interchangeable lens camera. Both cameras are equipped with an APS-C sensor. Both cameras offer a resolution of 24 megapixels.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm X100F and the Sony Alpha A5100? 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 X100F and the Sony A5100 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 X100F can be obtained in two different colors (black, silver), while the A5100 is also available in two color-versions, but different ones (black, white).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A5100 is notably smaller (27 percent) than the Fujifilm X100F. In this context, it is worth noting that neither the X100F nor the A5100 are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the X100F has a lens built in, whereas the A5100 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 A5100 and their specifications in the Sony E-Mount Lens Catalog.
Concerning battery life, the X100F gets 390 shots out of its NP-W126S battery, while the A5100 can take 400 images on a single charge of its NP-FW50 power pack. The battery packs of both cameras can be charged via USB, 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. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.
|1.||Fujifilm X100F||127 mm||75 mm||52 mm||469 g||390||n||Jan 2017||1,299|
|2.||Sony A5100||110 mm||63 mm||36 mm||283 g||400||n||Aug 2014||549|
|3.||Canon G1 X Mark III||115 mm||78 mm||51 mm||399 g||200||Y||Oct 2017||1,299|
|4.||Fujifilm X100V||128 mm||75 mm||53 mm||478 g||420||Y||Feb 2020||1,399|
|5.||Fujifilm X-A5||117 mm||68 mm||40 mm||361 g||450||n||Jan 2018||399|
|6.||Fujifilm XF10||113 mm||64 mm||41 mm||279 g||330||n||Jul 2018||499|
|7.||Fujifilm X-T3||133 mm||93 mm||59 mm||539 g||390||Y||Sep 2018||1,499|
|8.||Fujifilm X-T100||121 mm||83 mm||47 mm||448 g||430||n||May 2018||599|
|9.||Fujifilm X100T||127 mm||74 mm||52 mm||440 g||330||n||Sep 2014||1,299|
|10.||Fujifilm X100S||127 mm||74 mm||54 mm||445 g||330||n||Jan 2013||1,299|
|11.||Fujifilm X100||126 mm||75 mm||54 mm||445 g||300||n||Sep 2010||1,199|
|12.||Panasonic FZ2500||138 mm||102 mm||135 mm||915 g||350||n||Sep 2016||1,199|
|13.||Sony A5000||110 mm||63 mm||36 mm||269 g||420||n||Jan 2014||449|
|14.||Sony A6000||120 mm||67 mm||45 mm||344 g||360||n||Feb 2014||599|
|15.||Sony A3000||128 mm||91 mm||85 mm||411 g||470||n||Aug 2013||329|
|16.||Sony NEX-3N||110 mm||62 mm||35 mm||269 g||480||n||Feb 2013||499|
|17.||Sony NEX-3||117 mm||62 mm||33 mm||297 g||330||n||May 2010||599|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. 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.
The size of the imaging sensor is a crucial determinant of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. They nevertheless have the same format factor of 1.5. 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.
Even though the X100F has a slightly larger sensor, both cameras offer the same resolution of 24 megapixels. This implies that the X100F has a lower pixel density and larger individual pixels (with a pixel pitch of 3.92μm versus 3.91μm for the A5100), which gives it a potential advantage in terms of light gathering capacity. In addition, the X100F is much more recent (by 2 years and 5 months) than the A5100, and its sensor will have benefitted from technological advances during this time. Coming back to sensor resolution, it should be mentioned that the X100F has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The Fujifilm X100F 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 Alpha A5100 are ISO 100 to ISO 25600 (no boost).
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.
|3.||Canon G1 X Mark III||APS-C||24.0||6000||4000||1080/60p||..||..||..||..|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, and both provide the same movie specifications (1080/60p).
Apart from body and sensor, cameras can and do differ across a range of features. For example, the X100F has an electronic viewfinder (2360k dots), which can be very helpful when shooting in bright sunlight. In contrast, the A5100 relies on live view and the rear LCD for framing. The table below summarizes some of the other core capabilities of the Fujifilm X100F and Sony A5100 in connection with corresponding information for a sample of similar cameras.
|1.||Fujifilm X100F||2360||n||3.0 / 1040||fixed||n||1/4000s||8.0||Y||n|
|2.||Sony A5100||none||n||3.0 / 922||tilting||Y||1/4000s||6.0||Y||n|
|3.||Canon G1 X Mark III||2360||n||3.0 / 1040||swivel||Y||1/2000s||9.0||Y||Y|
|4.||Fujifilm X100V||3690||n||3.0 / 1620||tilting||Y||1/4000s||11.0||Y||n|
|5.||Fujifilm X-A5||none||n||3.0 / 1040||tilting||Y||1/4000s||6.0||Y||n|
|6.||Fujifilm XF10||none||n||3.0 / 1040||fixed||Y||1/4000s||6.0||Y||n|
|7.||Fujifilm X-T3||3690||n||3.0 / 1040||tilting||Y||1/8000s||11.0||n||n|
|8.||Fujifilm X-T100||2360||n||3.0 / 1040||swivel||Y||1/4000s||6.0||Y||n|
|9.||Fujifilm X100T||2360||n||3.0 / 1040||fixed||n||1/4000s||6.0||Y||n|
|10.||Fujifilm X100S||2360||n||2.8 / 460||fixed||n||1/4000s||6.0||Y||n|
|11.||Fujifilm X100||1440||n||2.8 / 460||fixed||n||1/4000s||5.0||Y||n|
|12.||Panasonic FZ2500||2360||n||3.0 / 1040||swivel||Y||1/4000s||12.0||Y||Y|
|13.||Sony A5000||none||n||3.0 / 461||tilting||n||1/4000s||3.5||Y||n|
|14.||Sony A6000||1440||n||3.0 / 922||tilting||n||1/4000s||11.0||Y||n|
|15.||Sony A3000||202||n||3.0 / 230||fixed||n||1/4000s||2.5||Y||n|
|16.||Sony NEX-3N||optional||n||3.0 / 460||tilting||n||1/4000s||4.0||Y||n|
|17.||Sony NEX-3||optional||n||3.0 / 920||tilting||n||1/4000s||7.0||n||n|
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The A5100 has a touchscreen, while the X100F has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.The A5100 has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the X100F 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, the X100F 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 Fujifilm X100F 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 X100F writes its imaging data to SDXC cards, while the A5100 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.
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 X100F and Sony Alpha A5100 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Fujifilm X100F||Y||stereo / mono||Y||-||micro||2.0||Y||-||-|
|2.||Sony A5100||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|3.||Canon G1 X Mark III||Y||stereo / mono||-||-||micro||2.0||Y||Y||Y|
|4.||Fujifilm X100V||Y||stereo / mono||Y||-||micro||3.1||Y||-||Y|
|5.||Fujifilm X-A5||Y||stereo / mono||Y||-||micro||2.0||Y||-||Y|
|6.||Fujifilm XF10||-||stereo / mono||Y||-||micro||2.0||Y||-||Y|
|7.||Fujifilm X-T3||Y||stereo / mono||Y||Y||micro||3.1||Y||-||Y|
|8.||Fujifilm X-T100||Y||stereo / mono||Y||-||micro||2.0||Y||-||Y|
|9.||Fujifilm X100T||Y||stereo / mono||Y||-||micro||2.0||Y||-||-|
|10.||Fujifilm X100S||Y||stereo / mono||-||-||micro||2.0||-||-||-|
|11.||Fujifilm X100||Y||stereo / -||-||-||mini||2.0||-||-||-|
|12.||Panasonic FZ2500||Y||stereo / mono||Y||Y||micro||2.0||Y||-||-|
|13.||Sony A5000||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|14.||Sony A6000||Y||stereo / mono||-||-||micro||2.0||Y||Y||-|
|15.||Sony A3000||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|16.||Sony NEX-3N||-||stereo / mono||-||-||micro||2.0||-||-||-|
|17.||Sony NEX-3||Y||stereo / mono||-||-||mini||2.0||-||-||-|
It is notable that the X100F has a hotshoe, while the A5100 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.
The A5100 is a recent model that features in the current product line-up of Sony. In contrast, the X100F has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the X100F was succeeded by the Fujifilm X100V. 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? Is the Fujifilm X100F better than the Sony A5100 or vice versa? The listing below highlights the relative strengths of the two models.
Advantages of the Fujifilm X100F:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Easier framing: Has an electronic viewfinder for image composition and settings control.
- More detailed LCD: Has a higher resolution rear screen (1040k vs 922k dots).
- Faster burst: Shoots at higher frequency (8 vs 6 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.
- Ready to shoot: Has a lens built-in, whereas the A5100 requires a separate lens.
- Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- More modern: Reflects 2 years and 5 months of technical progress since the A5100 launch.
Reasons to prefer the Sony Alpha A5100:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- 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.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
- More compact: Is smaller (110x63mm vs 127x75mm) and will fit more readily into a bag.
- Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
- More heavily discounted: Has been around for much longer (launched in August 2014).
If the number of relative strengths (bullet points above) is taken as a guide, the X100F emerges as the winner of the contest (10 : 8 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. 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 X100F and the Sony A5100 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 X100F or the A5100. 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 why expert reviews are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.
|1.||Fujifilm X100F||5/5||+||3.9/5||83/100||4.5/5||4.5/5||Jan 2017||1,299|
|2.||Sony A5100||4.5/5||+||..||..||4.5/5||5/5||Aug 2014||549|
|3.||Canon G1 X Mark III||5/5||+||4/5||79/100||4.5/5||4.5/5||Oct 2017||1,299|
|4.||Fujifilm X100V||5/5||+ +||4.5/5||86/100||5/5||4.5/5||Feb 2020||1,399|
|5.||Fujifilm X-A5||..||+||4.1/5||..||4/5||3.5/5||Jan 2018||399|
|6.||Fujifilm XF10||..||..||4/5||75/100||4/5||4.5/5||Jul 2018||499|
|7.||Fujifilm X-T3||5/5||+ +||4.5/5||88/100||5/5||5/5||Sep 2018||1,499|
|8.||Fujifilm X-T100||4/5||+||4.5/5||79/100||4/5||4.5/5||May 2018||599|
|9.||Fujifilm X100T||5/5||+||..||81/100||4.5/5||5/5||Sep 2014||1,299|
|10.||Fujifilm X100S||5/5||+ +||..||81/100||4.5/5||5/5||Jan 2013||1,299|
|11.||Fujifilm X100||3/5||..||..||75/100||4/5||5/5||Sep 2010||1,199|
|12.||Panasonic FZ2500||..||+||..||82/100||4.5/5||5/5||Sep 2016||1,199|
|13.||Sony A5000||3/5||+||..||..||4.5/5||4.5/5||Jan 2014||449|
|14.||Sony A6000||5/5||+||4.5/5||80/100||4.5/5||5/5||Feb 2014||599|
|15.||Sony A3000||3/5||+||..||..||4/5||4/5||Aug 2013||329|
|16.||Sony NEX-3N||3/5||..||..||..||4.5/5||4.5/5||Feb 2013||499|
|17.||Sony NEX-3||..||..||..||70/100||4.5/5||4/5||May 2010||599|
|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 comparisons of ratings among very different cameras or across long time periods have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
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 G5 X vs Fujifilm X100F
- Canon M50 Mark II vs Sony A5100
- Canon T7i vs Sony A5100
- Fujifilm X-E2S vs Fujifilm X100F
- Fujifilm X100F vs Nikon 1 V1
- Fujifilm X100F vs Nikon D4S
- Fujifilm X100F vs Nikon D5200
- Fujifilm X100F vs Olympus PEN-F
- Nikon D40X vs Sony A5100
- Nikon D850 vs Sony A5100
- Panasonic GX7 vs Sony A5100
- Sony A5100 vs Sony ZV-E10
Specifications: Fujifilm X100F vs Sony A5100
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 X100F||Sony A5100|
|Camera Type||Fixed lens compact camera||Mirrorless system camera|
|Camera Lens||35mm f/2.0||Sony E mount lenses|
|Launch Date||January 2017||August 2014|
|Launch Price||USD 1,299||USD 549|
|Sensor Specs||Fujifilm X100F||Sony A5100|
|Sensor Format||APS-C Sensor||APS-C Sensor|
|Sensor Size||23.6 x 15.6 mm||23.5 x 15.6 mm|
|Sensor Area||368.16 mm2||366.6 mm2|
|Sensor Diagonal||28.3 mm||28.2 mm|
|Sensor Resolution||24 Megapixels||24 Megapixels|
|Image Resolution||6000 x 4000 pixels||6000 x 4000 pixels|
|Pixel Pitch||3.92 μm||3.91 μm|
|Pixel Density||6.52 MP/cm2||6.55 MP/cm2|
|Moiré control||no AA filter||Anti-Alias filter|
|Movie Capability||1080/60p Video||1080/60p Video|
|ISO Setting||200 - 12,800 ISO||100 - 25,600 ISO|
|ISO Boost||100 - 51,200 ISO||no Enhancement|
|Image Processor||X-Processor Pro||BIONZ X|
|DXO Sensor Quality (score)||..||80|
|DXO Color Depth (bits)||..||23.8|
|DXO Dynamic Range (EV)||..||12.7|
|DXO Low Light (ISO)||..||1347|
|Screen Specs||Fujifilm X100F||Sony A5100|
|Viewfinder Type||Electronic viewfinder||no viewfinder|
|Viewfinder Field of View||100%|
|Viewfinder Resolution||2360k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1040k dots||922k dots|
|LCD Attachment||Fixed screen||Tilting screen|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Fujifilm X100F||Sony A5100|
|Focus System||On-Sensor Phase-detect||On-Sensor Phase-detect|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/4000s|
|Continuous Shooting||8 shutter flaps/s||6 shutter flaps/s|
|Electronic Shutter||up to 1/32000s||no E-Shutter|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|Fill Flash||Built-in Flash||Built-in 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 X100F||Sony A5100|
|External Flash||Hotshoe||no Hotshoe|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||micro HDMI||micro HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Wifi Support||Wifi built-in||Wifi built-in|
|Near-Field Communication||no NFC||NFC built-in|
|Body Specs||Fujifilm X100F||Sony A5100|
|Battery Life (CIPA)||390 shots per charge||400 shots per charge|
|In-Camera Charging||USB charging||USB charging|
127 x 75 x 52 mm
(5.0 x 3.0 x 2.0 in)
110 x 63 x 36 mm
(4.3 x 2.5 x 1.4 in)
|Camera Weight||469 g (16.5 oz)||283 g (10.0 oz)|
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