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Nikon D3100 vs Fujifilm X-T20

The Nikon D3100 and the Fujifilm X-T20 are two digital cameras that were announced, respectively, in August 2010 and January 2017. The D3100 is a DSLR, while the X-T20 is a mirrorless interchangeable lens camera. Both cameras are equipped with an APS-C sensor. The Nikon has a resolution of 14.2 megapixels, whereas the Fujifilm provides 24 MP.

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

Headline Specifications
Nikon D3100
versus
Fujifilm X-T20
Nikon D3100   Fujifilm X-T20
Digital single lens reflex Mirrorless system camera
Nikon F mount lenses Fujifilm X mount lenses
14.2 MP – APS-C sensor 24 MP – APS-C sensor
1080/24p Video 4K/30p Video
ISO 100-3,200 (100 - 12,800) ISO 200-12,800 (100 - 51,200)
Optical viewfinder Electronic viewfinder (2360k dots)
3.0" LCD – 230k dots 3.0" LCD – 1040k dots
Fixed screen (not touch-sensitive) Tilting touchscreen
3 shutter flaps per second 8 shutter flaps per second
550 shots per battery charge350 shots per battery charge
124 x 96 x 75 mm, 505 g 118 x 83 x 41 mm, 383 g
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Check D3100 offers at
ebay.com
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Check X-T20 offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D3100 and the Fujifilm X-T20? 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.

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Body comparison

The side-by-side display below illustrates the physical size and weight of the Nikon D3100 and the Fujifilm X-T20. 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 dimensions are rounded to the nearest millimeter.

The D3100 can be obtained in two different colors (black, red), while the X-T20 is also available in two color-versions, but different ones (black, silver).

Size Nikon D3100 vs Fujifilm X-T20
Compare D3100 versus X-T20 top
Comparison D3100 or X-T20 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Fujifilm X-T20 is notably smaller (18 percent) than the Nikon D3100. Moreover, the X-T20 is markedly lighter (24 percent) than the D3100. In this context, it is worth noting that neither the D3100 nor the X-T20 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 Nikon Lens Catalog (D3100) and the Fujinon X Lens Catalog (X-T20). Mirrorless cameras, such as the X-T20, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.

Concerning battery life, the D3100 gets 550 shots out of its Nikon EN-EL14 battery, while the X-T20 can take 350 images on a single charge of its Fujifilm NP-W126S power pack. The power pack in the X-T20 can be charged via the USB port, which can be very convenient when travelling.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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.

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Body Specifications
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D3100 124 mm 96 mm 75 mm 505 g 550 n Aug 2010 599ebay.com
2.
 
Fujifilm X-T20 118 mm 83 mm 41 mm 383 g 350 n Jan 2017 899ebay.com
3.
 
Fujifilm X-T30 118 mm 83 mm 47 mm 383 g 380 n Feb 2019 899ebay.com
4.
 
Fujifilm X-A5 117 mm 68 mm 40 mm 361 g 450 n Jan 2018 399ebay.com
5.
 
Fujifilm X-T100 121 mm 83 mm 47 mm 448 g 430 n May 2018 599ebay.com
6.
 
Fujifilm X-E3 121 mm 74 mm 43 mm 337 g 350 n Sep 2017 899ebay.com
7.
 
Fujifilm X-T10 118 mm 83 mm 41 mm 381 g 350 n May 2015 799ebay.com
8.
 
Nikon D3200 125 mm 96 mm 77 mm 505 g 540 n Apr 2012 599ebay.com
9.
 
Nikon D5100 128 mm 97 mm 79 mm 560 g 660 n Apr 2011 749ebay.com
10.
 
Nikon D7000 132 mm 105 mm 77 mm 780 g 1050 Y Sep 2010 1,499ebay.com
11.
 
Nikon D3000 126 mm 97 mm 64 mm 536 g 500 n Jul 2009 599ebay.com
12.
 
Nikon D5000 127 mm 104 mm 80 mm 590 g 510 n Apr 2009 749ebay.com
13.
 
Nikon D60 126 mm 94 mm 64 mm 522 g 500 n Jan 2008 629ebay.com
14.
 
Nikon D40X 124 mm 94 mm 64 mm 522 g 520 n Mar 2007 729ebay.com
15.
 
Nikon D40 124 mm 94 mm 64 mm 522 g 470 n Nov 2006 499ebay.com
16.
 
Sony NEX-5N 111 mm 59 mm 38 mm 269 g 460 n Aug 2011 699ebay.com
17.
 
Sony NEX-C3 110 mm 60 mm 33 mm 225 g 400 n Jun 2011 599ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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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 D3100 was launched at a markedly lower price (by 33 percent) than the X-T20, 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. 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. 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 associated with larger, more expensive camera bodies and lenses.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the X-T20 is 3 percent bigger. 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.

Nikon D3100 and Fujifilm X-T20 sensor measures

With 24MP, the X-T20 offers a higher resolution than the D3100 (14.2MP), but the X-T20 has smaller individual pixels (pixel pitch of 3.92μm versus 5.01μm for the D3100). Yet, the X-T20 is a much more recent model (by 6 years and 5 months) than the D3100, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the X-T20 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Fujifilm X-T20 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the X-T20 for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Nikon D3100 are 23 x 15.4 inches or 58.5 x 39 cm for good quality, 18.4 x 12.3 inches or 46.8 x 31.2 cm for very good quality, and 15.4 x 10.2 inches or 39 x 26 cm for excellent quality prints.

The X-T20 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Nikon D3100 has a native sensitivity range from ISO 100 to ISO 3200, which can be extended to ISO 100-12800. The corresponding ISO settings for the Fujifilm X-T20 are ISO 200 to ISO 12800, with the possibility to increase the ISO range to 100-51200.

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Like most digital cameras, the D3100 uses a Bayer filter for capturing RGB colors on a square grid of photosensors. In contrast, the X-T20 employs a more randomized X-Trans layout of photosites, which according to Fujifilm helps to minimize moiré.

D3100 versus X-T20 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 following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

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Sensor Characteristics
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Nikon D3100 APS-C 14.2 4608 30721080/24p22.511.391967
2.
 
Fujifilm X-T20 APS-C 24.0 6000 40004K/30p23.913.2170481
3.
 
Fujifilm X-T30 APS-C 26.0 6240 41604K/30p24.113.5189583
4.
 
Fujifilm X-A5 APS-C 24.0 6000 40004K/15p24.013.3180082
5.
 
Fujifilm X-T100 APS-C 24.0 6000 40004K/15p24.013.4182983
6.
 
Fujifilm X-E3 APS-C 24.0 6000 40004K/30p23.913.3176482
7.
 
Fujifilm X-T10 APS-C 16.0 4896 32641080/60p23.712.9154679
8.
 
Nikon D3200 APS-C 24.1 6016 40001080/30p24.113.2113181
9.
 
Nikon D5100 APS-C 16.1 4928 32641080/30p23.513.6118380
10.
 
Nikon D7000 APS-C 16.1 4928 32641080/24p23.513.9116780
11.
 
Nikon D3000 APS-C 10.0 3872 2592none22.311.156362
12.
 
Nikon D5000 APS-C 12.2 4288 2848720/24p22.712.586872
13.
 
Nikon D60 APS-C 10.0 3872 2592none22.511.456265
14.
 
Nikon D40X APS-C 10.0 3872 2592none22.411.451663
15.
 
Nikon D40 APS-C 6.0 3008 2000none21.011.056156
16.
 
Sony NEX-5N APS-C 16.0 4912 32641080/60i23.612.7107977
17.
 
Sony NEX-C3 APS-C 16.0 4912 3264720/30p22.712.2108373
Note: DXO values in italics represent estimates based on sensor size and age.
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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, but the X-T20 provides a better video resolution than the D3100. It can shoot movie footage at 4K/30p, while the Nikon is limited to 1080/24p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the X-T20 has an electronic viewfinder (2360k dots), while the D3100 has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinder in the X-T20 offers a wider field of view (100%) than the one in the D3100 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the X-T20 has a higher magnification (0.62x vs 0.53x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The following table reports on some other key feature differences and similarities of the Nikon D3100, the Fujifilm X-T20, and comparable cameras.

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Core Features
# image Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Nikon D3100optical n3.0 / 230 fixed n 1/4000s 3.0/s Y n
2.
 
Fujifilm X-T202360 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y n
3.
 
Fujifilm X-T302360 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y n
4.
 
Fujifilm X-A5none n3.0 / 1040 tilting Y 1/4000s 6.0/s Y n
5.
 
Fujifilm X-T1002360 n3.0 / 1040 swivel Y 1/4000s 6.0/s Y n
6.
 
Fujifilm X-E32360 n3.0 / 1040 fixed Y 1/4000s 8.0/s n n
7.
 
Fujifilm X-T102360 n3.0 / 920 tilting n 1/4000s 8.0/s Y n
8.
 
Nikon D3200optical n3.0 / 921 fixed n 1/4000s 4.0/s Y n
9.
 
Nikon D5100optical n3.0 / 921 swivel n 1/4000s 4.0/s Y n
10.
 
Nikon D7000optical Y3.0 / 921 fixed n 1/8000s 6.0/s Y n
11.
 
Nikon D3000optical n3.0 / 230 fixed n 1/4000s 3.0/s Y n
12.
 
Nikon D5000optical n2.7 / 230 full-flex n 1/4000s 4.0/s Y n
13.
 
Nikon D60optical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
14.
 
Nikon D40Xoptical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
15.
 
Nikon D40optical n2.5 / 230 fixed n 1/4000s 2.5/s Y n
16.
 
Sony NEX-5Noptional n3.0 / 920 tilting Y 1/4000s 10.0/s n n
17.
 
Sony NEX-C3optional n3.0 / 920 tilting n 1/4000s 5.5/s n n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The X-T20 has a touchscreen, while the D3100 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

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-T20 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-T20 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 D3100 and the X-T20 write their files to SDXC cards. The X-T20 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.

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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 Nikon D3100 and Fujifilm X-T20 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Nikon D3100Ymono / mono--mini2.0---
2.
 
Fujifilm X-T20Ystereo / monoY-micro2.0Y--
3.
 
Fujifilm X-T30Ystereo / monoY-micro3.1Y-Y
4.
 
Fujifilm X-A5Ystereo / monoY-micro2.0Y-Y
5.
 
Fujifilm X-T100Ystereo / monoY-micro2.0Y-Y
6.
 
Fujifilm X-E3Ystereo / monoY-micro2.0Y-Y
7.
 
Fujifilm X-T10Ystereo / monoY-micro2.0Y--
8.
 
Nikon D3200Ymono / monoY-mini2.0---
9.
 
Nikon D5100Ymono / monoY-mini2.0---
10.
 
Nikon D7000Ymono / monoY-mini2.0---
11.
 
Nikon D3000Y- / ----2.0---
12.
 
Nikon D5000Ymono / mono--mini2.0---
13.
 
Nikon D60Y- / ----2.0---
14.
 
Nikon D40XY- / ----2.0---
15.
 
Nikon D40Y- / ----2.0---
16.
 
Sony NEX-5NYstereo / mono--mini2.0---
17.
 
Sony NEX-C3Ystereo / mono--mini2.0---
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It is notable that the X-T20 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the D3100 does not provide wifi capability.

Both the D3100 and the X-T20 have been discontinued, but can regularly be found used on ebay. The D3100 was replaced by the Nikon D3200, while the X-T20 was followed by the Fujifilm X-T100. Further information on the features and operation of the D3100 and X-T20 can be found, respectively, in the Nikon D3100 Manual (free pdf) or the online Fujifilm X-T20 Manual.

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Review summary

So what is the bottom line? Is the Nikon D3100 better than the Fujifilm X-T20 or vice versa? Below is a summary of the relative strengths of each of the two contestants.

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Arguments in favor of the Nikon D3100:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Longer lasting: Can take more shots (550 versus 350) on a single battery charge.
  • More affordable: Was introduced into a lower priced category (33 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in August 2010).

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Reasons to prefer the Fujifilm X-T20:

  • More detail: Has more megapixels (24 vs 14.2MP), which boosts linear resolution by 30%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/24p).
  • 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.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More complete view: Has a viewfinder with a larger field of view (100% vs 95%).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.62x vs 0.53x).
  • 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: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster burst: Shoots at higher frequency (8 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 (118x83mm vs 124x96mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 122g or 24 percent) and is thus easier to take along.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • More legacy lens friendly: Can use many 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 modern: Reflects 6 years and 5 months of technical progress since the D3100 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the X-T20 is the clear winner of the contest (21 : 5 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.

D3100 05:21 X-T20

How about other alternatives? Do the specifications of the Nikon D3100 and the Fujifilm X-T20 place the cameras among the top in their class? Find out in the latest Best DSLR 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 incomplete and does no justice, for example, to the way the D3100 or the X-T20 perform in practice. 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 expert reviews are important. The adjacent summary-table relays the overall verdicts of several of the most popular camera 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.

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Expert Camera Reviews
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D31005/5+ +..72/1004.5/54.5/5 Aug 2010 599ebay.com
2.
 
Fujifilm X-T205/5+ +5/582/1005/54.5/5 Jan 2017 899ebay.com
3.
 
Fujifilm X-T305/5+ +5/584/1004.5/54.5/5 Feb 2019 899ebay.com
4.
 
Fujifilm X-A5..+4.1/5..4/53.5/5 Jan 2018 399ebay.com
5.
 
Fujifilm X-T1004/5+4.5/579/1004/54.5/5 May 2018 599ebay.com
6.
 
Fujifilm X-E34.5/5+4.5/584/1004.5/54.5/5 Sep 2017 899ebay.com
7.
 
Fujifilm X-T104.5/5+ +..80/1005/55/5 May 2015 799ebay.com
8.
 
Nikon D32005/5+ +..73/1004.5/54.5/5 Apr 2012 599ebay.com
9.
 
Nikon D51005/5+ +..76/1004.5/54.5/5 Apr 2011 749ebay.com
10.
 
Nikon D70004/5....80/1004.5/54.5/5 Sep 2010 1,499ebay.com
11.
 
Nikon D3000..+..72/1004/54.5/5 Jul 2009 599ebay.com
12.
 
Nikon D5000..+ +..75/1004/54.5/5 Apr 2009 749ebay.com
13.
 
Nikon D60..80/100..+ +4/54.5/5 Jan 2008 629ebay.com
14.
 
Nikon D40X..79/100..+ +4/54/5 Mar 2007 729ebay.com
15.
 
Nikon D40..81/100..+ +o4.5/5 Nov 2006 499ebay.com
16.
 
Sony NEX-5N3/5+ +..79/1004.5/54.5/5 Aug 2011 699ebay.com
17.
 
Sony NEX-C33/5+ +..74/1004.5/54/5 Jun 2011 599ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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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.

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Check D3100 offers at
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Check X-T20 offers at
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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. 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: Nikon D3100 vs Fujifilm X-T20

    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 Nikon D3100 Fujifilm X-T20
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Nikon F mount lenses Fujifilm X mount lenses
    Launch Date August 2010 January 2017
    Launch Price USD 599 USD 899
    Sensor Specs Nikon D3100 Fujifilm X-T20
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor APS-C Sensor
    Sensor Size 23.1 x 15.4 mm 23.6 x 15.6 mm
    Sensor Area 355.74 mm2 368.16 mm2
    Sensor Diagonal 27.8 mm 28.3 mm
    Crop Factor 1.5x 1.5x
    Sensor Resolution 14.2 Megapixels 24 Megapixels
    Image Resolution 4608 x 3072 pixels 6000 x 4000 pixels
    Pixel Pitch 5.01 μm 3.92 μm
    Pixel Density 3.98 MP/cm2 6.52 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/24p Video 4K/30p Video
    ISO Setting 100 - 3,200 ISO 200 - 12,800 ISO
    ISO Boost 100 - 12,800 ISO 100 - 51,200 ISO
    Image Processor EXPEED 2 X-Processor Pro2
    DXO Sensor Quality (score) 67 ..
    DXO Color Depth (bits) 22.5 ..
    DXO Dynamic Range (EV) 11.3 ..
    DXO Low Light (ISO) 919 ..
    Screen Specs Nikon D3100 Fujifilm X-T20
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 95% 100%
    Viewfinder Magnification 0.53x 0.62x
    Viewfinder Resolution 2360k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 230k dots 1040k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Nikon D3100 Fujifilm X-T20
    Focus System Phase-detect AF On-Sensor Phase-detect
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/4000s
    Continuous Shooting 3 shutter flaps/s 8 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/32000s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium SDXC cards SDXC cards
    Single or Dual Card Slots Single card slot Single card slot
    UHS card support no UHS-I
    Connectivity Specs Nikon D3100 Fujifilm X-T20
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI micro HDMI
    Microphone Port no MIC socket External MIC port
    Wifi Support no Wifi Wifi built-in
    Body Specs Nikon D3100 Fujifilm X-T20
    Battery Type Nikon EN-EL14 Fujifilm NP-W126S
    Battery Life (CIPA)550 shots per charge350 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 124 x 96 x 75 mm
    (4.9 x 3.8 x 3.0 in)
    118 x 83 x 41 mm
    (4.6 x 3.3 x 1.6 in)
    Camera Weight 505 g (17.8 oz) 383 g (13.5 oz)
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    Check X-T20 offers at
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