Nikon D90 versus Nikon D7000
The Nikon D90 and the Nikon D7000 are two enthusiast cameras that were announced, respectively, in August 2008 and September 2010. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The D90 has a resolution of 12.2 megapixel, whereas the D7000 provides 16.1 MP.
An illustration of the physical size and weight of the Nikon D90 and the Nikon D7000 is provided in the side-by-side display below. Three consecutive perspectives from the front, the top, and the back are presented. All width, height and depth measures are rounded to the nearest millimeter. You can also use the toggle button to switch to a percentage comparison if you prefer that the measures are being expressed in relative terms (in this case, the camera on the left – the D90 – represents 100 percent across all the size and weight measures).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Nikon D7000 is somewhat larger (2 percent) than the Nikon D90. Moreover, the D7000 is markedly heavier (11 percent) than the D90. It is noteworthy in this context that the D7000 is splash and dust-proof, while the D90 does not feature any corresponding weather-sealing.
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.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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 comparisons there.
|Camera Body Specifications
|Nikon D90 (⇒ rgt)||132 mm||103 mm||77 mm||703 g||850||no||2008||1,299||discont.||check|
|Nikon D7000 (⇒ lft)||132 mm||105 mm||77 mm||780 g||1050||YES||2010||1,499||discont.||check|
|Canon 40D (⇒ lft | rgt)||146 mm||108 mm||74 mm||822 g||750||no||2007||1,299||discont.||check|
|Nikon D7500 (⇒ lft | rgt)||136 mm||104 mm||73 mm||720 g||950||YES||2017||1,299||latest||check|
|Nikon D7200 (⇒ lft | rgt)||136 mm||107 mm||76 mm||765 g||1110||YES||2015||1,199||discont.||check|
|Nikon D7100 (⇒ lft | rgt)||136 mm||107 mm||76 mm||765 g||950||YES||2013||1,199||discont.||check|
|Nikon Df (⇒ lft | rgt)||144 mm||110 mm||67 mm||760 g||1400||YES||2013||2,749||latest||check|
|Nikon D300S (⇒ lft | rgt)||147 mm||115 mm||81 mm||938 g||950||YES||2009||1,799||discont.||check|
|Nikon D3000 (⇒ lft | rgt)||126 mm||97 mm||64 mm||536 g||500||no||2009||599||discont.||check|
|Nikon D5000 (⇒ lft | rgt)||127 mm||104 mm||80 mm||590 g||510||no||2009||749||discont.||check|
|Nikon D80 (⇒ lft | rgt)||132 mm||103 mm||77 mm||668 g||600||no||2006||999||discont.||check|
|Panasonic GH1 (⇒ lft | rgt)||124 mm||90 mm||45 mm||385 g||..||no||2009||1,499||discont.||check|
The listed prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The D90 was launched at a somewhat lower price (by 13 percent) than the D7000, which makes it more attractive for photographers on a tight budget. 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.
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. 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 D7000 is 1 percent smaller. As a result of these sensor size differences, the cameras have format factors, respectively, of 1.52194470078621 (D90) and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Despite having a slightly smaller sensor, the D7000 offers a higher resolution of 16.1 megapixel, compared with 12.2 MP of the D90. 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 4.80μm versus 5.53μm for the D90). However, it should be noted that the D7000 is much more recent (by 2 years) than the D90, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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"). Of the two cameras under consideration, the D7000 has a markedly higher DXO score than the D90 (overall score 7 points higher), which will translate into better image quality. The advantage is based on 0.8 bits higher color depth, 1.4 EV in additional dynamic range, and 0.3 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Nikon D90 (⇒ rgt)||APS-C||12.2||4288||2848||720/24p||22.7||12.5||977||73|
|Nikon D7000 (⇒ lft)||APS-C||16.1||4928||3264||10800/24p||23.5||13.9||1167||80|
|Canon 40D (⇒ lft | rgt)||APS-C||10.1||3888||2592||no||22.1||11.3||703||64|
|Nikon D7500 (⇒ lft | rgt)||APS-C||20.7||5568||3712||4K/30p||24.8||13.9||1192||86|
|Nikon D7200 (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60p||24.5||14.6||1333||87|
|Nikon D7100 (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60p||24.2||13.7||1256||83|
|Nikon Df (⇒ lft | rgt)||Full Frame||16.2||4928||3280||no||24.6||13.1||3279||89|
|Nikon D300S (⇒ lft | rgt)||APS-C||12.2||4288||2848||720/24p||22.5||12.2||787||70|
|Nikon D3000 (⇒ lft | rgt)||APS-C||10.0||3872||2592||no||22.3||11.1||563||62|
|Nikon D5000 (⇒ lft | rgt)||APS-C||12.2||4288||2848||720/24p||22.7||12.5||868||72|
|Nikon D80 (⇒ lft | rgt)||APS-C||10.0||3872||2592||no||22.1||11.2||524||61|
|Panasonic GH1 (⇒ lft | rgt)||Four Thirds||12.0||4000||3000||1080/24p||21.6||11.6||772||64|
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 D7000 provides a better video resolution than the D90. It can shoot movie footage at 10800/24p, while the D90 is limited to 720/24p.
Apart from body and sensor, cameras can and do differ across a range of features. The D90 and the D7000 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 following table reports on some other key feature differences and similarities of the Nikon D90, the Nikon D7000, and comparable cameras. If you need more detail on the specs, you can find comprehensive listings, for example, in the dpreview camera hub.
|Nikon D90 (⇒ rgt)||optical||YES||3||920||fixed||no||4000||4.5||YES||no|
|Nikon D7000 (⇒ lft)||optical||YES||3.0||921||fixed||no||8000||6.0||12||no|
|Canon 40D (⇒ lft | rgt)||optical||YES||3.0||230||fixed||no||8000||6.5||12||no|
|Nikon D7500 (⇒ lft | rgt)||optical||YES||3.2||922||tilting||YES||8000||8.0||12||no|
|Nikon D7200 (⇒ lft | rgt)||optical||YES||3.2||1229||fixed||no||8000||6.0||12||no|
|Nikon D7100 (⇒ lft | rgt)||optical||YES||3.2||1229||fixed||no||8000||6.0||12||no|
|Nikon Df (⇒ lft | rgt)||optical||YES||3.2||921||fixed||no||4000||5.5||no||no|
|Nikon D300S (⇒ lft | rgt)||optical||YES||3.0||920||fixed||no||8000||7.0||12||no|
|Nikon D3000 (⇒ lft | rgt)||optical||no||3.0||230||fixed||no||4000||3.0||12||no|
|Nikon D5000 (⇒ lft | rgt)||optical||no||2.7||230||full-flex||no||4000||4.0||17||no|
|Nikon D80 (⇒ lft | rgt)||optical||no||2.5||230||fixed||no||4000||3.0||YES||no|
|Panasonic GH1 (⇒ lft | rgt)||1440||no||3.0||460||swivel||no||4000||3.0||10.5||no|
Both the D90 and the D7000 have been discontinued, but can regularly be found used on ebay. The D90 was replaced by the Nikon D7000, while the D7000 was followed by the Nikon D7100.
So how do things add up? Which of the two cameras – the Nikon D90 or the Nikon D7000 – has the upper hand? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Nikon D90:
- Less heavy: Is lighter (by 77g or 10 percent) and hence easier to carry around.
- More affordable: Was introduced into a lower priced segment (13 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in August 2008).
Reasons to prefer the Nikon D7000:
- More detail: Has more megapixels (16.1 vs 12.2MP), which boosts linear resolution by 15%.
- Better image quality: Scores markedly higher (7 points) in the DXO overall evaluation.
- More dynamic range: Captures a broader range of light and dark details (1.4 EV of extra DR).
- Better video: Provides higher definition movie capture (10800/24p vs 720/24p).
- Faster shutter: Has higher mechanical shutter speed (8000/sec vs 4000/sec) to freeze action.
- Faster burst: Shoots at higher frequency (6 vs 4.5 flaps/sec) to capture the decisive moment.
- Longer lasting: Gets more shots (1050 versus 850) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- More modern: Reflects 2 years of technical progress since the D90 launch.
If the count of relative strengths (bullet points above) is taken as a measure, the D7000 is the clear winner of the contest (9 : 3 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.
In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains incomplete and does no justice, for example, to the way the D90 or the D7000 handle or perform in practice. 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 why expert reviews are important. The following table reports the overall rankings of the cameras as published by some of the major camera review sites. The detailed reviews can be accessed, respectively, on the websites of cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.
|Nikon D90 (⇒ rgt)||89/100 HiRec||HiRec||4/5||5/5||4.5/5||2008||1,299||discont.||check|
|Nikon D7000 (⇒ lft)||-||80/100 Silver||4.5/5||5/5||4.5/5||2010||1,499||discont.||check|
|Canon 40D (⇒ lft | rgt)||90/100 HiRec||HiRec||4.5/5||reviewed||4.5/5||2007||1,299||discont.||check|
|Nikon D7500 (⇒ lft | rgt)||HiRec||86/100 Silver||5/5||4.5/5||4.5/5||2017||1,299||latest||check|
|Nikon D7200 (⇒ lft | rgt)||HiRec||84/100 Silver||4.5/5||4/5||4.5/5||2015||1,199||discont.||check|
|Nikon D7100 (⇒ lft | rgt)||HiRec||85/100 Gold||4.5/5||5/5||4.5/5||2013||1,199||discont.||check|
|Nikon Df (⇒ lft | rgt)||-||81/100||4/5||4/5||4/5||2013||2,749||latest||check|
|Nikon D300S (⇒ lft | rgt)||90/100 HiRec||82/100 HiRec||4/5||5/5||4.5/5||2009||1,799||discont.||check|
|Nikon D3000 (⇒ lft | rgt)||80/100 Rec||72/100 HiRec||4/5||3.5/5||4.5/5||2009||599||discont.||check|
|Nikon D5000 (⇒ lft | rgt)||88/100 HiRec||75/100 HiRec||4/5||5/5||4.5/5||2009||749||discont.||check|
|Nikon D80 (⇒ lft | rgt)||86/100 Rec||HiRec||reviewed||4.5/5||4.5/5||2006||999||discont.||check|
|Panasonic GH1 (⇒ lft | rgt)||89/100 HiRec||72/100 HiRec||4.5/5||5/5||4.5/5||2009||1,499||discont.||check|
Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. 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. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
In case you would like to check on the differences and similarities of other camera models, just use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting. If you do not see the camera that you are looking for, please contact me, and I will try to add information on that model to the database.
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