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Fujifilm X-Pro3 vs Sigma fp

The Fujifilm X-Pro3 and the Sigma fp are two digital cameras that were announced, respectively, in October 2019 and July 2019. Both the X-Pro3 and the fp are mirrorless interchangeable lens cameras that are based on an APS-C (X-Pro3) and a full frame (fp) sensor. The Fujifilm has a resolution of 26 megapixels, whereas the Sigma 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 X-Pro3 versus Sigma fp
Fujifilm X-Pro3 Sigma fp
Mirrorless system camera Mirrorless system camera
Fujifilm X mount lenses Leica L mount lenses
26 MP, APS-C Sensor 24 MP, Full Frame Sensor
4K/30p Video 4K/30p Video
ISO 160-12,800 (80 - 51,200) ISO 100-25,600 (6 - 102,400)
Electronic viewfinder (3690k dots) No viewfinder, LCD framing
3.0 LCD, 1620k dots 3.2 LCD, 2100k dots
Tilting touchscreen Fixed touchscreen
8 shutter flaps per second 12 shutter flaps per second
Weathersealed bodyWeathersealed body
440 shots per battery charge280 shots per battery charge
141 x 83 x 46 mm, 497 g 113 x 70 x 45 mm, 422 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm X-Pro3 and the Sigma fp? 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 X-Pro3 and the Sigma fp is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All size dimensions are rounded to the nearest millimeter.

The X-Pro3 can be obtained in two different colors (black, silver), while the fp is only available in black.

Size Fujifilm X-Pro3 vs Sigma fp
Compare X-Pro3 versus fp top
Comparison X-Pro3 or fp rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sigma fp is considerably smaller (32 percent) than the Fujifilm X-Pro3. Moreover, the fp is markedly lighter (15 percent) than the X-Pro3. 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. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

The battery packs of both cameras can be charged via USB, 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. In case you want to display and compare another camera duo, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.

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Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life 1
Weather
Sealing
Camera
Launch 2
Launch
Price (USD)
Street
Price
 
Fujifilm X-Pro3 141 mm 83 mm 46 mm 497 g 440 Y Oct 2019 1,799 i
 
Sigma fp 113 mm 70 mm 45 mm 422 g 280 Y Jul 2019 1,899 i
 
Fujifilm X100V 128 mm 75 mm 53 mm 478 g 420 Y Feb 2020 1,399 i
 
Fujifilm X-T4 135 mm 93 mm 64 mm 607 g 500 Y Feb 2020 1,699 i
 
Fujifilm X-A5 117 mm 68 mm 40 mm 361 g 450 n Jan 2018 399i
 
Fujifilm X-T3 133 mm 93 mm 59 mm 539 g 390 Y Sep 2018 1,499 i
 
Fujifilm X-H1 140 mm 97 mm 86 mm 673 g 310 Y Feb 2018 1,899 i
 
Fujifilm X-T100 121 mm 83 mm 47 mm 448 g 430 n May 2018 599i
 
Fujifilm X-Pro2 141 mm 83 mm 46 mm 495 g 350 Y Jan 2016 1,699 i
 
Fujifilm X-T2 133 mm 92 mm 49 mm 507 g 340 Y Jul 2016 1,599i
 
Fujifilm X-T1 129 mm 90 mm 47 mm 440 g 350 Y Jan 2014 1,299i
 
Panasonic S1 149 mm 110 mm 97 mm 1017 g 400 Y Feb 2019 2,499 i
 
Panasonic FT7 117 mm 76 mm 37 mm 319 g 300 Y May 2018 449 i
 
Sony A7 127 mm 94 mm 48 mm 474 g 340 Y Oct 2013 1,699i
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 obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The X-Pro3 was somewhat cheaper (by 5 percent) than the fp at launch, but both cameras fall into the same price category. 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 imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Fujifilm X-Pro3 features an APS-C sensor and the Sigma fp a full frame sensor. The sensor area in the fp 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 BSI-CMOS (Backside Illuminated Complementary Metal–Oxide–Semiconductor) sensors.

Fujifilm X-Pro3 and Sigma fp sensor measures

Despite having a smaller sensor, the Fujifilm X-Pro3 offers a higher resolution of 26 megapixels, compared with 24 MP of the Sigma fp. 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 3.76μm versus 5.98μm for the fp). However, it should be noted that the X-Pro3 is a somewhat more recent model (by 3 months) than the fp, and its sensor might have benefitted from technological advances during this time that partly offset its pixel-size disadvantage. Coming back to sensor resolution, it should be mentioned that neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.

The X-Pro3 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Fujifilm X-Pro3 has a native sensitivity range from ISO 160 to ISO 12800, which can be extended to ISO 80-51200. The corresponding ISO settings for the Sigma fp are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 6-102400.

X-Pro3 versus fp MP

For many cameras, data on sensor performance has been reported by DXO Mark. 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"). The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

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Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
 
Fujifilm X-Pro3 APS-C 26.0 6240 41604K/30p........
 
Sigma fp Full Frame 24.0 6000 40004K/30p........
 
Fujifilm X100V APS-C 26.0 6240 41604K/30p........
 
Fujifilm X-T4 APS-C 26.0 6240 41604K/60p........
 
Fujifilm X-A5 APS-C 24.0 6000 40004K/15p........
 
Fujifilm X-T3 APS-C 26.0 6240 41604K/60p........
 
Fujifilm X-H1 APS-C 24.0 6000 40004K/30p........
 
Fujifilm X-T100 APS-C 24.0 6000 40004K/15p........
 
Fujifilm X-Pro2 APS-C 24.0 6000 40001080/60p........
 
Fujifilm X-T2 APS-C 24.0 6000 40004K/30p........
 
Fujifilm X-T1 APS-C 16.0 4896 32641080/60p........
 
Panasonic S1 Full Frame 24.0 6000 40004K/60p25.214.5333395
 
Panasonic FT7 1/2.3 20.2 5184 38884K/30p........
 
Sony A7 Full Frame 24.0 6000 40001080/60p24.814.2224890

Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, and both provide the same movie specifications (4K/30p).

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the X-Pro3 has an electronic viewfinder (3690k dots), which can be very helpful when shooting in bright sunlight. In contrast, the fp relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Fujifilm X-Pro3 and Sigma fp along with similar information for a selection of comparators.

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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
 
Fujifilm X-Pro33690 n 3.0 1620 tilting Y 1/8000s 8.0 n n
 
Sigma fpnone n 3.2 2100 fixed Y 1/8000s 12.0 n n
 
Fujifilm X100V3690 n 3.0 1620 tilting Y 1/4000s 11.0 Y n
 
Fujifilm X-T43690 n 3.0 1620 swivel Y 1/8000s 15.0 n Y
 
Fujifilm X-A5none n 3.0 1040 tilting Y 1/4000s 6.0 Y n
 
Fujifilm X-T33690 n 3.0 1040 tilting Y 1/8000s 11.0 n n
 
Fujifilm X-H13690 Y 3.0 1040 full-flex Y 1/8000s 14.0 n Y
 
Fujifilm X-T1002360 n 3.0 1040 full-flex Y 1/4000s 6.0 Y n
 
Fujifilm X-Pro22360 n 3.0 1620 fixed n 1/8000s 8.0 n n
 
Fujifilm X-T22360 n 3.0 1040 tilting n 1/8000s 14.0 n n
 
Fujifilm X-T12360 n 3.0 1040 tilting n 1/4000s 8.0 n n
 
Panasonic S15760 Y 3.2 2100 full-flex Y 1/8000s 9.0 n Y
 
Panasonic FT71170 n 3.0 1040 fixed n 1/1300s 10.0 Y Y
 
Sony A72400 n 3.0 1230 tilting n 1/8000s 5.0 n n

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-Pro3 and the Sigma fp both have an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

Concerning the storage of imaging data, both the X-Pro3 and the fp write their files to SDXC cards. The X-Pro3 features dual card slots, which can be very useful in case a memory card fails. In contrast, the fp only has one slot. Both cameras support UHS-II cards, which provide for Ultra High Speed data transfer of up to 312 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 X-Pro3 and Sigma fp and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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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
 
Fujifilm X-Pro3YstereomonoY--3.1Y-Y
 
Sigma fpYstereomonoY-micro3.1---
 
Fujifilm X100VYstereomonoY-micro3.1Y-Y
 
Fujifilm X-T4YstereomonoY-micro3.1Y-Y
 
Fujifilm X-A5YstereomonoY-mini2.0Y-Y
 
Fujifilm X-T3YstereomonoYYmicro3.1Y-Y
 
Fujifilm X-H1YstereomonoY-micro3.0Y--
 
Fujifilm X-T100YstereomonoY-micro2.0Y-Y
 
Fujifilm X-Pro2YstereomonoY-micro2.0Y--
 
Fujifilm X-T2YstereomonoY-micro3.0Y--
 
Fujifilm X-T1YstereomonoY-mini2.0Y--
 
Panasonic S1YstereomonoYYfull3.1Y-Y
 
Panasonic FT7-stereomono--micro2.0Y--
 
Sony A7YstereomonoYYmicro2.0YY-

It is notable that the X-Pro3 offers wifi support, while the fp does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

Studio photographers will appreciate that the Fujifilm X-Pro3 (unlike the fp) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the X-Pro3 and the fp are recent models that are part of the current product line-up. The X-Pro3 replaced the earlier Fujifilm X-Pro2, while the fp does not have a direct predecessor. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Fujifilm and Sigma websites.

Review summary

So how do things add up? Is there a clear favorite between the Fujifilm X-Pro3 and the Sigma fp? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

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Advantages of the Fujifilm X-Pro3:

  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Longer lasting: Can take more shots (440 versus 280) on a single battery charge.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More modern: Is somewhat more recent (announced 3 months after the fp).

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Arguments in favor of the Sigma fp:

  • 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.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (2100k vs 1620k dots).
  • Faster burst: Shoots at higher frequency (12 vs 8 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (113x70mm vs 141x83mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 75g or 15 percent) and is thus easier to take along.
  • More heavily discounted: Has been on the market for longer (launched in July 2019).

If the count of relative strengths (bullet points above) is taken as a measure, the fp comes out slightly ahead of the X-Pro3 (10 : 9 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.

X-Pro3 09:10 fp

How about other alternatives? Do the specifications of the Fujifilm X-Pro3 and the Sigma fp place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera listing whether the two cameras rank among the cream of the crop.

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the X-Pro3 or the fp. 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 table below provides a synthesis of the camera assessments of some of the best known photo-gear 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.

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Review Scores
  Camera
Model
camera
  labs  
dp
review  
ephoto
  zine  
imaging
resource
photography
  blog  
Camera
Launch
Launch
Price (USD)
Street
Price
 
Fujifilm X-Pro3+85/1004/5.... Oct 2019 1,799 i
 
Sigma fp....4/5..4.5/5 Jul 2019 1,899 i
 
Fujifilm X100V+ +86/1005/5..4.5/5 Feb 2020 1,399 i
 
Fujifilm X-T4+ +..5/5..5/5 Feb 2020 1,699 i
 
Fujifilm X-A5+..4/54/53.5/5 Jan 2018 399i
 
Fujifilm X-T3+ +88/1005/55/55/5 Sep 2018 1,499 i
 
Fujifilm X-H1+86/1004.5/5..4.5/5 Feb 2018 1,899 i
 
Fujifilm X-T100+79/1004/5..4.5/5 May 2018 599i
 
Fujifilm X-Pro2+83/1004.5/54.5/54.5/5 Jan 2016 1,699 i
 
Fujifilm X-T2+ +86/1004.5/55/55/5 Jul 2016 1,599i
 
Fujifilm X-T1+ +84/1005/54/55/5 Jan 2014 1,299i
 
Panasonic S1+ +88/1004.5/5..4/5 Feb 2019 2,499 i
 
Panasonic FT7+..3.5/5..3.5/5 May 2018 449 i
 
Sony A7+ +80/1005/54.5/55/5 Oct 2013 1,699i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The ratings are only valid when referring to cameras in the same category and of the same age. Hence, a score should always be seen in the context of the camera's market launch date and its price, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

Fujifilm X-Pro3:
Check Amazon price
Sigma fp:
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 make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications: Fujifilm X-Pro3 vs Sigma fp

    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 X-Pro3 Sigma fp
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Fujifilm X mount lenses Leica L mount lenses
    Launch Date October 2019 July 2019
    Launch Price USD 1,799 USD 1,899
    Sensor Specs Fujifilm X-Pro3 Sigma fp
    Sensor Technology BSI-CMOS BSI-CMOS
    Sensor Format APS-C Sensor Full Frame Sensor
    Sensor Size 23.6 x 15.6 mm 35.9 x 23.9 mm
    Sensor Area 368.16 mm2 858.01 mm2
    Sensor Diagonal 28.3 mm 43.1 mm
    Crop Factor 1.5x 1.0x
    Sensor Resolution 26 Megapixels 24 Megapixels
    Image Resolution 6240 x 4160 pixels 6000 x 4000 pixels
    Pixel Pitch 3.76 μm 5.98 μm
    Pixel Density 7.05 MP/cm2 2.80 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 4K/30p Video 4K/30p Video
    ISO Setting 160 - 12,800 ISO 100 - 25,600 ISO
    ISO Boost 80 - 51,200 ISO 6 - 102,400 ISO
    Screen Specs Fujifilm X-Pro3 Sigma fp
    Viewfinder Type Electronic viewfinder no viewfinder
    Viewfinder Field of View 95%
    Viewfinder Magnification 0.52x
    Viewfinder Resolution 3690k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.2inch
    LCD Resolution 1620k dots 2100k dots
    LCD Attachment Tilting screen Fixed screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Fujifilm X-Pro3 Sigma fp
    Focus System On-Sensor Phase-detect Contrast-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/8000s
    Continuous Shooting 8 shutter flaps/s 12 shutter flaps/s
    Electronic Shutterup to 1/32000sup to 1/8000s
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium SDXC cards SDXC cards
    Second Storage Option Dual card slots Single card slot
    UHS card support Dual UHS-II UHS-II
    Connectivity Specs Fujifilm X-Pro3 Sigma fp
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 3.1 USB 3.1
    HDMI Port no HDMI micro HDMI
    Microphone Port External MIC port External MIC port
    Wifi Support Wifi built-in no Wifi
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Fujifilm X-Pro3 Sigma fp
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type NP-W126S BP-51
    Battery Life (CIPA)440 shots per charge280 shots per charge
    In-Camera Charging USB charging USB charging
    Body Dimensions 141 x 83 x 46 mm
    (5.6 x 3.3 x 1.8 in)
    113 x 70 x 45 mm
    (4.4 x 2.8 x 1.8 in)
    Camera Weight 497 g (17.5 oz) 422 g (14.9 oz)

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