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Nikon D3100 versus Nikon D3000

The Nikon D3100 and the Nikon D3000 are two digital cameras that were announced, respectively, in August 2010 and July 2009. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The D3100 has a resolution of 14.2 megapixel, whereas the D3000 provides 10 MP. Read on to find out how these two cameras compare with respect to their size, their sensors, their features, and their reception by expert reviewers.

Body comparison: Nikon D3100 vs Nikon D3000

The physical size and weight of the Nikon D3100 and the Nikon D3000 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 size dimensions are rounded to the nearest millimeter. If you prefer, you can also use the toggle button to switch to a comparison in percentage terms (in this case, the camera on the left side – the D3100 – represents the basis for the calculations across all the size and weight measures).

Compare Nikon D3100 vs Nikon D3000
Compare D3100 versus D3000 top
Compare D3100 and D3000 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Nikon D3000 is somewhat larger (3 percent) than the Nikon D3100. Moreover, the D3000 is markedly heavier (6 percent) than the D3100. In this context, it is worth noting that neither the D3100 nor the D3000 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. In this particular case, both cameras feature the same lens mount, so that they can use the same lenses. You can find an overview of suitable optics in the Nikon Lens Catalog.

Concerning battery life, the D3100 gets 550 shots out of its EN-EL14 battery, while the D3000 can take 500 images on a single charge of its EN-EL9a power pack.

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, 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.

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)
Used
Price
(USD)
Camera
Model
Nikon D3100» 4.9 in 3.8 in 3.0 in 17.8 oz 550 n Aug 2010 599- i Nikon D3100
Nikon D3000« 5.0 in 3.8 in 2.5 in 18.9 oz 500 n Jul 2009 599- i Nikon D3000
Nikon D3400« » 4.9 in 3.9 in 3.0 in 15.7 oz 1200 n Aug 2016 499 i i Nikon D3400
Nikon D5600« » 4.9 in 3.8 in 2.8 in 16.4 oz 970 n Nov 2016 699 i i Nikon D5600
Nikon D3300« » 4.9 in 3.9 in 3.0 in 15.2 oz 700 n Jan 2014 499- i Nikon D3300
Nikon D3200« » 4.9 in 3.8 in 3.0 in 17.8 oz 540 n Apr 2012 599- i Nikon D3200
Nikon D5100« » 5.0 in 3.8 in 3.1 in 19.8 oz 660 n Apr 2011 749- i Nikon D5100
Nikon D5000« » 5.0 in 4.1 in 3.1 in 20.8 oz 510 n Apr 2009 749- i Nikon D5000
Nikon D60« » 5.0 in 3.7 in 2.5 in 18.4 oz 500 n Jan 2008 629- i Nikon D60
Nikon D40X« » 4.9 in 3.7 in 2.5 in 18.4 oz 520 n Mar 2007 729- i Nikon D40X
Nikon D40« » 4.9 in 3.7 in 2.5 in 18.4 oz 470 n Nov 2006 499- i Nikon D40

The camera’s price is obviously a critical decision-making factor. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The two cameras under review were launched at the same price and fall into the same market segment. 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.

 

Sensor comparison: Nikon D3100 vs Nikon D3000

The size of the sensor inside a digital camera is one of the key determinants 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. 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 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 D3000 is 5 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 Nikon D3000 sensor measures

Despite having a smaller sensor, the Nikon D3100 offers a higher resolution of 14.2 megapixel, compared with 10 MP of the Nikon D3000. This megapixel advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 5.01μm versus 6.11μm for the D3000). However, it should be noted that the D3100 is a somewhat more recent model (by 1 year) than the D3000, and its sensor might have benefitted from technological advances during this time that partly offset its pixel-size disadvantage.

D3100 versus D3000 MP

For many cameras, data on sensor performance has been reported by DXO Mark. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. Of the two cameras under review, the D3100 has a notably higher overall DXO score than the D3000 (overall score 5 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 0.2 bits higher color depth, 0.2 EV in additional dynamic range, and 0.7 stops in additional low light sensitivity. 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
Nikon D3100» APS-C 14.2 4608 30721080/24p22.511.391967Nikon D3100
Nikon D3000« APS-C 10.0 3872 2592-22.311.156362Nikon D3000
Nikon D3400« » APS-C 24.0 6000 40001080/60p24.813.9119286Nikon D3400
Nikon D5600« » APS-C 24.0 6000 40001080/60p24.114.0130684Nikon D5600
Nikon D3300« » APS-C 24.0 6000 40001080/60p24.312.8138582Nikon D3300
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 D5000« » APS-C 12.2 4288 2848720/24p22.712.586872Nikon D5000
Nikon D60« » APS-C 10.0 3872 2592-22.511.456265Nikon D60
Nikon D40X« » APS-C 10.0 3872 2592-22.411.451663Nikon D40X
Nikon D40« » APS-C 6.0 3008 2000-21.011.056156Nikon D40

Many modern cameras cannot only take still pictures, but also record videos. The D3100 indeed provides movie recording capabilities, while the D3000 does not. The highest resolution format that the D3100 can use is 1080/24p.

 

Feature comparison: Nikon D3100 vs Nikon D3000

Apart from body and sensor, cameras can and do differ across a variety of features. The D3100 and the D3000 are similar in the sense that both have an optical viewfinder. The latter is useful for getting a clear image for framing even in brightly lit environments. The adjacent table lists some of the other core features of the Nikon D3100 and Nikon D3000 along with similar information for a selection of comparators. The full specs-sheets can be found in the camera manual or, for example, in the dpreview camera hub.

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)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec))
Build-in
Flash
(yes/no)
Build-in
Image
Stab
Camera
Model
Nikon D3100»optical n 3.0 230 fixed n 4000 3.0 Y n Nikon D3100
Nikon D3000«optical n 3.0 230 fixed n 4000 3.0 Y n Nikon D3000
Nikon D3400« »optical n 3.0 921 fixed n 4000 5.0 Y n Nikon D3400
Nikon D5600« »optical n 3.2 1037 swivel Y 4000 5.0 Y n Nikon D5600
Nikon D3300« »optical n 3.0 921 fixed n 4000 5.0 Y n Nikon D3300
Nikon D3200« »optical n 3.0 921 fixed n 4000 4.0 Y n Nikon D3200
Nikon D5100« »optical n 3.0 921 swivel n 4000 4.0 Y n Nikon D5100
Nikon D5000« »optical n 2.7 230 full-flex n 4000 4.0 Y n Nikon D5000
Nikon D60« »optical n 2.5 230 fixed n 4000 3.0 Y n Nikon D60
Nikon D40X« »optical n 2.5 230 fixed n 4000 3.0 Y n Nikon D40X
Nikon D40« »optical n 2.5 230 fixed n 4000 2.5 Y n Nikon D40

Both the D3100 and the D3000 have been discontinued, but can regularly be found used on eBay. The D3000 was replaced by the Nikon D3100, while the D3100 was followed by the Nikon D3200.

Review summary: Nikon D3100 vs Nikon D3000

So what conclusions can be drawn? Is there a clear favorite between the Nikon D3100 and the Nikon D3000? Below is a summary of the relative strengths of each of the two contestants.


Arguments in favor of the Nikon D3100:

  • More detail: Offers more megapixels (14.2 vs 10MP) with a 19% higher linear resolution.
  • Better image quality: Scores markedly higher (5 points) in the DXO overall assessment.
  • Better low-light sensitivity: Requires less light for good images (0.7 stops ISO advantage).
  • Broader imaging potential: Can record not only still images but also 1080/24p movies.
  • More modern: Is somewhat more recent (announced 1 year after the D3000).


Advantages of the Nikon D3000:

  • More heavily discounted: Has been on the market for longer (launched in July 2009).

If the number of relative strengths (bullet points above) is taken as a guide, the D3100 is the clear winner of the match-up (5 : 1 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.

D3100 05:01 D3000

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it says nothing about, for example, the handling, responsiveness, and overall imaging quality of the D3100 and the D3000 in practical situations. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased. This is where reviews by experts come in. The following table reports the overall rankings of the cameras as published by some of the major camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). The full reviews are available by clicking on the site logo in the table header.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
Nikon D3100»HiRec72/1004.5/55/54.5/5 Aug 2010 599- i Nikon D3100
Nikon D3000«Rec72/1004/53.5/54.5/5 Jul 2009 599- i Nikon D3000
Nikon D3400« »Rec76/1004/54.5/54.5/5 Aug 2016 499 i i Nikon D3400
Nikon D5600« »-79/1004.5/54.5/54/5 Nov 2016 699 i i Nikon D5600
Nikon D3300« »Rec77/1004.5/54.5/54.5/5 Jan 2014 499- i Nikon D3300
Nikon D3200« »HiRec73/1004.5/54.5/54.5/5 Apr 2012 599- i Nikon D3200
Nikon D5100« »HiRec76/1004.5/55/54.5/5 Apr 2011 749- i Nikon D5100
Nikon D5000« »HiRec75/1004/55/54.5/5 Apr 2009 749- i Nikon D5000
Nikon D60« »80/100HiRec4/5rev4.5/5 Jan 2008 629- i Nikon D60
Nikon D40X« »79/100HiRec4/5rev4/5 Mar 2007 729- i Nikon D40X
Nikon D40« »81/100HiRecrev5/54.5/5 Nov 2006 499- i Nikon D40

Care should be taken when interpreting the review scores above, though. The ratings are only valid when refering to cameras in the same category and of the same age. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

 

Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting. If you cannot find the camera you are interested in, kindly get in touch, and I will try to add information on that model to the database.

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