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Fujifilm X-A3 vs Nikon D3100

The Fujifilm X-A3 and the Nikon D3100 are two digital cameras that were revealed to the public, respectively, in August 2016 and August 2010. The X-A3 is a mirrorless interchangeable lens camera, while the D3100 is a DSLR. Both cameras are equipped with an APS-C sensor. The Fujifilm has a resolution of 24 megapixels, whereas the Nikon provides 14.2 MP.

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

Headline Specifications
Fujifilm X-A3 VS Nikon D3100
Fujifilm X-A3 Nikon D3100
Mirrorless system camera Digital single lens reflex
Fujifilm X mount lenses Nikon F mount lenses
24 MP, APS-C Sensor 14.2 MP, APS-C Sensor
1080/60p Video 1080/24p Video
ISO 200-6400 (100-25600) ISO 100-3200 (100-12800)
No viewfinder, LCD framing Optical viewfinder
3.0" LCD, 1040k dots 3.0" LCD, 230k dots
Tilting touchscreen Fixed screen (not touch-sensitive)
6 shutter flaps per second 3 shutter flaps per second
410 shots per battery charge550 shots per battery charge
117 x 67 x 40 mm, 339 g 124 x 96 x 75 mm, 505 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm X-A3 and the Nikon D3100? 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 physical size and weight of the Fujifilm X-A3 and the Nikon D3100 are illustrated 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 measures are rounded to the nearest millimeter.

The X-A3 can be obtained in three different colors (silver, brown, pink), while the D3100 is available in two color-versions (black, red).

Size Fujifilm X-A3 vs Nikon D3100
Compare X-A3 versus D3100 top
Comparison X-A3 or D3100 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Nikon D3100 is considerably larger (52 percent) than the Fujifilm X-A3. Moreover, the D3100 is substantially heavier (49 percent) than the X-A3. In this context, it is worth noting that neither the X-A3 nor the D3100 are weather-sealed.

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. Both cameras have similarly sized sensors, but DSLRs have a larger flange-to-focal plane distance than mirrorless cameras, which imposes contraints on the optical engineering process and generally leads to bigger and heavier lenses. You can compare the optics available for the two cameras in the Fujinon X Lens Catalog (X-A3) and the Nikon Lens Catalog (D3100). Mirrorless cameras, such as the Fujifilm X-A3, have moreover the advantage that they have a relatively short flange to focal plane distance and can thus use many lenses from other systems via adapters.

Concerning battery life, the X-A3 gets 410 shots out of its NP-W126S battery, while the D3100 can take 550 images on a single charge of its EN-EL14 power pack. The power pack in the X-A3 can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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)
Camera
Model
 
Fujifilm X-A3» 4.6 in 2.6 in 1.6 in 12.0 oz 410 n Aug 2016 399iFujifilm X-A3
 
Nikon D3100« 4.9 in 3.8 in 3.0 in 17.8 oz 550 n Aug 2010 599iNikon D3100
 
Fujifilm X-T200« » 4.8 in 3.3 in 2.2 in 13.1 oz 270 n Jan 2020 699 iFujifilm X-T200
 
Fujifilm X-T30« » 4.6 in 3.3 in 1.9 in 13.5 oz 380 n Feb 2019 899 iFujifilm X-T30
 
Fujifilm X-A7« » 4.7 in 2.7 in 1.6 in 11.3 oz 440 n Sep 2019 499 iFujifilm X-A7
 
Fujifilm X-A5« » 4.6 in 2.7 in 1.6 in 12.7 oz 450 n Jan 2018 399iFujifilm X-A5
 
Fujifilm X-E3« » 4.8 in 2.9 in 1.7 in 11.9 oz 350 n Sep 2017 899 iFujifilm X-E3
 
Fujifilm X-T20« » 4.6 in 3.3 in 1.6 in 13.5 oz 350 n Jan 2017 899 iFujifilm X-T20
 
Fujifilm X-A10« » 4.6 in 2.6 in 1.6 in 11.7 oz 410 n Dec 2016 399iFujifilm X-A10
 
Fujifilm X-A2« » 4.6 in 2.6 in 1.6 in 12.3 oz 410 n Jan 2015 399iFujifilm X-A2
 
Fujifilm X-T10« » 4.6 in 3.3 in 1.6 in 13.4 oz 350 n May 2015 799iFujifilm X-T10
 
Fujifilm X-A1« » 4.6 in 2.6 in 1.5 in 11.6 oz 350 n Sep 2013 399iFujifilm X-A1
 
Nikon D3200« » 4.9 in 3.8 in 3.0 in 17.8 oz 540 n Apr 2012 599iNikon D3200
 
Nikon D5100« » 5.0 in 3.8 in 3.1 in 19.8 oz 660 n Apr 2011 749iNikon D5100
 
Nikon D7000« » 5.2 in 4.1 in 3.0 in 27.5 oz 1050 Y Sep 2010 1,499iNikon D7000
 
Nikon D3000« » 5.0 in 3.8 in 2.5 in 18.9 oz 500 n Jul 2009 599iNikon D3000
 
Nikon D5000« » 5.0 in 4.1 in 3.1 in 20.8 oz 510 n Apr 2009 749iNikon D5000
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

Any camera decision will naturally be influenced heavily by the price. 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 X-A3 was launched at a markedly lower price (by 33 percent) than the D3100, which puts it into a different market segment. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.

 

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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the D3100 is 4 percent smaller. 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.

In terms of underlying technology, both cameras are build around CMOS sensors.

Fujifilm X-A3 and Nikon D3100 sensor measures

With 24MP, the X-A3 offers a higher resolution than the D3100 (14.2MP), but the X-A3 has smaller individual pixels (pixel pitch of 3.92μm versus 5.01μm for the D3100). However, the X-A3 is a much more recent model (by 6 years) than the D3100, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels.

The resolution advantage of the Fujifilm X-A3 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the X-A3 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 Nikon D3100 are 23 x 15.4 inch or 58.5 x 39 cm for good quality, 18.4 x 12.3 inch or 46.8 x 31.2 cm for very good quality, and 15.4 x 10.2 inch or 39 x 26 cm for excellent quality prints.

The Fujifilm X-A3 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 Nikon D3100 are ISO 100 to ISO 3200, with the possibility to increase the ISO range to 100-12800.

X-A3 versus D3100 MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 X-A3 APS-C 24.0 6000 40001080/60p........Fujifilm X-A3
 
Nikon D3100 APS-C 14.2 4608 30721080/24p22.511.391967Nikon D3100
 
Fujifilm X-T200 APS-C 24.0 6000 40004K/30p........Fujifilm X-T200
 
Fujifilm X-T30 APS-C 26.0 6240 41604K/30p........Fujifilm X-T30
 
Fujifilm X-A7 APS-C 24.0 6000 40004K/30p........Fujifilm X-A7
 
Fujifilm X-A5 APS-C 24.0 6000 40004K/15p........Fujifilm X-A5
 
Fujifilm X-E3 APS-C 24.0 6000 40004K/30p........Fujifilm X-E3
 
Fujifilm X-T20 APS-C 24.0 6000 40004K/30p........Fujifilm X-T20
 
Fujifilm X-A10 APS-C 16.0 4896 32641080/30p........Fujifilm X-A10
 
Fujifilm X-A2 APS-C 16.0 4896 32641080/30p........Fujifilm X-A2
 
Fujifilm X-T10 APS-C 16.0 4896 32641080/60p........Fujifilm X-T10
 
Fujifilm X-A1 APS-C 16.0 4896 32641080/30p........Fujifilm X-A1
 
Nikon D3200 APS-C 24.1 6016 40001080/30p24.113.2113181Nikon D3200
 
Nikon D5100 APS-C 16.1 4928 32641080/30p23.513.6118380Nikon D5100
 
Nikon D7000 APS-C 16.1 4928 326410800/24p23.513.9116780Nikon D7000
 
Nikon D3000 APS-C 10.0 3872 2592none22.311.156362Nikon D3000
 
Nikon D5000 APS-C 12.2 4288 2848720/24p22.712.586872Nikon D5000

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the X-A3 provides a higher frame rate than the D3100. It can shoot video footage at 1080/60p, while the Nikon is limited to 1080/24p.

 

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the D3100 has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the X-A3 relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Fujifilm X-A3, the Nikon D3100, and comparable cameras.

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 X-A3none n 3.0 1040 tilting Y 1/4000s 6.0 Y n Fujifilm X-A3
 
Nikon D3100optical n 3.0 230 fixed n 1/4000s 3.0 Y n Nikon D3100
 
Fujifilm X-T2002360 n 3.5 2780 swivel Y 1/4000s 8.0 Y n Fujifilm X-T200
 
Fujifilm X-T302360 n 3.0 1040 tilting Y 1/4000s 8.0 Y n Fujifilm X-T30
 
Fujifilm X-A7none n 3.5 2760 swivel Y 1/4000s 6.0 Y n Fujifilm X-A7
 
Fujifilm X-A5none n 3.0 1040 tilting Y 1/4000s 6.0 Y n Fujifilm X-A5
 
Fujifilm X-E32360 n 3.0 1040 fixed Y 1/4000s 8.0 n n Fujifilm X-E3
 
Fujifilm X-T202360 n 3.0 1040 tilting Y 1/4000s 8.0 Y n Fujifilm X-T20
 
Fujifilm X-A10none n 3.0 1040 tilting n 1/4000s 6.0 Y n Fujifilm X-A10
 
Fujifilm X-A2none n 3.0 920 tilting n 1/4000s 5.6 Y n Fujifilm X-A2
 
Fujifilm X-T102360 n 3.0 920 tilting n 1/4000s 8.0 Y n Fujifilm X-T10
 
Fujifilm X-A1none n 3.0 920 tilting n 1/4000s 5.6 Y n Fujifilm X-A1
 
Nikon D3200optical n 3.0 921 fixed n 1/4000s 4.0 Y n Nikon D3200
 
Nikon D5100optical n 3.0 921 swivel n 1/4000s 4.0 Y n Nikon D5100
 
Nikon D7000optical Y 3.0 921 fixed n 1/8000s 6.0 Y n Nikon D7000
 
Nikon D3000optical n 3.0 230 fixed n 1/4000s 3.0 Y n Nikon D3000
 
Nikon D5000optical n 2.7 230 full-flex n 1/4000s 4.0 Y n Nikon D5000

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The X-A3 has a touchscreen, while the D3100 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The X-A3 has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the D3100 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 X-A3 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 X-A3 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.

Concerning the storage of imaging data, both the X-A3 and the D3100 write their files to SDXC cards. The X-A3 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the D3100 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 X-A3 and Nikon D3100 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 X-A3Ystereomono--micro2.0Y--Fujifilm X-A3
 
Nikon D3100Ymonomono--mini2.0---Nikon D3100
 
Fujifilm X-T200YstereomonoYYmicro3.1Y-YFujifilm X-T200
 
Fujifilm X-T30YstereomonoY-micro3.1Y-YFujifilm X-T30
 
Fujifilm X-A7YstereomonoY-mini2.0Y-YFujifilm X-A7
 
Fujifilm X-A5YstereomonoY-mini2.0Y-YFujifilm X-A5
 
Fujifilm X-E3YstereomonoY-micro2.0Y-YFujifilm X-E3
 
Fujifilm X-T20YstereomonoY-micro2.0Y--Fujifilm X-T20
 
Fujifilm X-A10-stereomono--mini2.0Y--Fujifilm X-A10
 
Fujifilm X-A2Ystereomono--mini2.0Y--Fujifilm X-A2
 
Fujifilm X-T10YstereomonoY-micro2.0Y--Fujifilm X-T10
 
Fujifilm X-A1Ystereomono--mini2.0Y--Fujifilm X-A1
 
Nikon D3200YmonomonoY-mini2.0---Nikon D3200
 
Nikon D5100YmonomonoY-mini2.0---Nikon D5100
 
Nikon D7000YmonomonoY-mini2.0---Nikon D7000
 
Nikon D3000Ynonenone--none2.0---Nikon D3000
 
Nikon D5000Ymonomono--mini2.0---Nikon D5000

It is notable that the X-A3 offers wifi support, while the D3100 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

Both the X-A3 and the D3100 have been discontinued, but can regularly be found used on eBay. The D3100 was replaced by the Nikon D3200, while the X-A3 was followed by the Fujifilm X-A5. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Fujifilm and Nikon websites.

Review summary

So what conclusions can be drawn? Is there a clear favorite between the Fujifilm X-A3 and the Nikon D3100? Which camera is better? The listing below highlights the relative strengths of the two models.

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Reasons to prefer the Fujifilm X-A3:

  • More detail: Offers more megapixels (24 vs 14.2MP) with a 30% higher linear resolution.
  • Better video: Provides higher movie framerates (1080/60p versus 1080/24p).
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 230k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (6 vs 3 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 compact: Is smaller (117x67mm vs 124x96mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 166g or 33 percent) and hence easier to carry around.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
  • More affordable: Was introduced into a lower priced category (33 percent cheaper at launch).
  • More modern: Reflects 6 years of technical progress since the D3100 launch.

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Arguments in favor of the Nikon D3100:

  • Easier framing: Has an optical viewfinder for image composition and settings control.
  • Longer lasting: Gets more shots (550 versus 410) out of a single battery charge.
  • More heavily discounted: Has been around for much longer (launched in August 2010).

If the count of individual advantages (bullet points above) is taken as a guide, the X-A3 is the clear winner of the match-up (16 : 3 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.

X-A3 16:03 D3100

How about other alternatives? Do the specifications of the Fujifilm X-A3 and the Nikon D3100 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR Camera listings 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-A3 or the D3100. 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 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 X-A3..74/1004.5/5..4/5 Aug 2016 399iFujifilm X-A3
 
Nikon D3100+ +72/1004.5/55/54.5/5 Aug 2010 599iNikon D3100
 
Fujifilm X-T200..82/1004/5..4.5/5 Jan 2020 699 iFujifilm X-T200
 
Fujifilm X-T30+ +84/1004.5/55/54.5/5 Feb 2019 899 iFujifilm X-T30
 
Fujifilm X-A7..81/1004/5..3.5/5 Sep 2019 499 iFujifilm X-A7
 
Fujifilm X-A5+..4/54/53.5/5 Jan 2018 399iFujifilm X-A5
 
Fujifilm X-E3+84/1004.5/54.5/54.5/5 Sep 2017 899 iFujifilm X-E3
 
Fujifilm X-T20+ +82/1005/5..4.5/5 Jan 2017 899 iFujifilm X-T20
 
Fujifilm X-A10....4/5..4/5 Dec 2016 399iFujifilm X-A10
 
Fujifilm X-A2....4.5/54/54.5/5 Jan 2015 399iFujifilm X-A2
 
Fujifilm X-T10+ +80/1005/54/55/5 May 2015 799iFujifilm X-T10
 
Fujifilm X-A1....4.5/5..4.5/5 Sep 2013 399iFujifilm X-A1
 
Nikon D3200+ +73/1004.5/54.5/54.5/5 Apr 2012 599iNikon D3200
 
Nikon D5100+ +76/1004.5/55/54.5/5 Apr 2011 749iNikon D5100
 
Nikon D7000..80/1004.5/55/54.5/5 Sep 2010 1,499iNikon D7000
 
Nikon D3000+72/1004/53.5/54.5/5 Jul 2009 599iNikon D3000
 
Nikon D5000+ +75/1004/55/54.5/5 Apr 2009 749iNikon D5000
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The assessments were made in relation to similar cameras of the same technological generation. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Fujifilm X-A3:
Check Ebay offers
Nikon D3100:
Check Ebay offers

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-A3 vs Nikon D3100

    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-A3 Nikon D3100
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Fujifilm X mount lenses Nikon F mount lenses
    Launch Date August 2016 August 2010
    Launch Price USD 399 USD 599
    Sensor Specs Fujifilm X-A3 Nikon D3100
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor APS-C Sensor
    Sensor Size 23.5 x 15.7 mm 23.1 x 15.4 mm
    Sensor Area 368.95 mm2 355.74 mm2
    Sensor Diagonal 28.3 mm 27.8 mm
    Crop Factor 1.5x 1.5x
    Sensor Resolution 24 Megapixels 14.2 Megapixels
    Image Resolution 6000 x 4000 pixels 4608 x 3072 pixels
    Pixel Pitch 3.92 μm 5.01 μm
    Pixel Density 6.50 MP/cm2 3.98 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/60p Video 1080/24p Video
    ISO Setting 200-6400 ISO 100-3200 ISO
    ISO Boost 100-25600 ISO 100-12800 ISO
    DXO Sensor Quality (score) .. 67
    DXO Color Depth (bits) .. 22.5
    DXO Dynamic Range (EV) .. 11.3
    DXO Low Light (ISO) .. 919
    Screen Specs Fujifilm X-A3 Nikon D3100
    Viewfinder Type No viewfinder Optical viewfinder
    Viewfinder Field of View 95%
    Viewfinder Magnification 0.53x
    LCD Framing Live View Live View
    Rear LCD Size 3.0 inch 3.0 inch
    LCD Resolution 1040k dots 230k dots
    LCD Attachment Tilting screen Fixed screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Fujifilm X-A3 Nikon D3100
    Focus System Contrast-detect AF Phase-detect AF
    Manual Focusing AidFocus PeakingNo Peaking Feature
    Continuous Shooting 6 shutter flaps/s 3 shutter flaps/s
    Electronic Shutterup to 1/32000sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Fill Flash Build-in Flash Build-in Flash
    Storage Medium SDXC cards SDXC cards
    Second Storage Option Single card slot Single card slot
    UHS card support UHS-I no
    Connectivity Specs Fujifilm X-A3 Nikon D3100
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI mini HDMI
    Wifi Support Wifi built-in no Wifi
    Body Specs Fujifilm X-A3 Nikon D3100
    Battery Type NP-W126S EN-EL14
    Battery Life (CIPA)410 shots per charge550 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 117 x 67 x 40 mm
    (4.6 x 2.6 x 1.6 in)
    124 x 96 x 75 mm
    (4.9 x 3.8 x 3.0 in)
    Camera Weight 339 g (12.0 oz) 505 g (17.8 oz)

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