Nikon D40X vs D90
The Nikon D40X and the Nikon D90 are two digital cameras that were announced, respectively, in March 2007 and August 2008. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The D40X has a resolution of 10 megapixels, whereas the D90 provides 12.2 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D40X and the Nikon D90? 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.
An illustration of the physical size and weight of the Nikon D40X and the Nikon D90 is provided in the side-by-side display below. 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 D40X can be obtained in two different colors (black, silver), while the D90 is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Nikon D90 is notably larger (17 percent) than the Nikon D40X. Moreover, the D90 is substantially heavier (35 percent) than the D40X. In this context, it is worth noting that neither the D40X nor the D90 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 compare the optics available in the Nikon Lens Catalog.
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, you can use the CAM-parator app to select your camera combination among a large number of options.
|1.||Nikon D40X||124 mm||94 mm||64 mm||522 g||520||n||Mar 2007||729|
|2.||Nikon D90||132 mm||103 mm||77 mm||703 g||850||n||Aug 2008||1,299|
|3.||Canon 40D||146 mm||108 mm||74 mm||822 g||750||n||Aug 2007||1,299|
|4.||Nikon D7000||132 mm||105 mm||77 mm||780 g||1050||Y||Sep 2010||1,499|
|5.||Nikon D3100||124 mm||96 mm||75 mm||505 g||550||n||Aug 2010||599|
|6.||Nikon D300S||147 mm||115 mm||81 mm||938 g||950||Y||Jul 2009||1,799|
|7.||Nikon D3000||126 mm||97 mm||64 mm||536 g||500||n||Jul 2009||599|
|8.||Nikon D5000||127 mm||104 mm||80 mm||590 g||510||n||Apr 2009||749|
|9.||Nikon D60||126 mm||94 mm||64 mm||522 g||500||n||Jan 2008||629|
|10.||Nikon D40||124 mm||94 mm||64 mm||522 g||470||n||Nov 2006||499|
|11.||Nikon D80||132 mm||103 mm||77 mm||668 g||600||n||Aug 2006||999|
|12.||Nikon D50||133 mm||102 mm||76 mm||620 g||400||n||Apr 2005||749|
|13.||Olympus E-420||130 mm||91 mm||53 mm||440 g||500||n||Mar 2008||599|
|14.||Panasonic L10||135 mm||96 mm||78 mm||556 g||450||n||Aug 2007||599|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will obviously take relative prices into account. 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 D40X was launched at a markedly lower price (by 44 percent) than the D90, 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.
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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Both cameras under consideration feature an APS-C sensor and have a format factor (sometimes also referred to as "crop factor") of 1.5. Within the spectrum of camera sensors, this places the review cameras among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
While the two cameras under review share the same sensor size, the D90 offers a higher resolution of 12.2 megapixels, compared with 10 MP of the D40X. This megapixels advantage translates into a 11 percent gain in linear resolution. On the other hand, these sensor specs imply that the D90 has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 5.53μm versus 6.11μm for the D40X). However, it should be noted that the D90 is a somewhat more recent model (by 1 year and 5 months) than the D40X, and its sensor might have benefitted from technological advances during this time that at least partly compensate for the smaller pixel size.
The resolution advantage of the Nikon D90 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the D90 for good quality output (200 dots per inch) amounts to 21.4 x 14.2 inches or 54.5 x 36.2 cm, for very good quality (250 dpi) 17.2 x 11.4 inches or 43.6 x 28.9 cm, and for excellent quality (300 dpi) 14.3 x 9.5 inches or 36.3 x 24.1 cm. The corresponding values for the Nikon D40X are 19.4 x 13 inches or 49.2 x 32.9 cm for good quality, 15.5 x 10.4 inches or 39.3 x 26.3 cm for very good quality, and 12.9 x 8.6 inches or 32.8 x 21.9 cm for excellent quality prints.
The Nikon D40X has a native sensitivity range from ISO 100 to ISO 1600, which can be extended to ISO 100-3200. The corresponding ISO settings for the Nikon D90 are ISO 200 to ISO 3200, with the possibility to increase the ISO range to 200-6400.
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 consideration, the D90 has a markedly higher DXO score than the D40X (overall score 10 points higher), which will translate into better image quality. The advantage is based on 0.3 bits higher color depth, 1.1 EV in additional dynamic range, and 0.9 stops in additional low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
| DXO |
|13.||Olympus E-420||Four Thirds||10.0||3648||2736||none||21.5||10.4||527||56|
|14.||Panasonic L10||Four Thirds||10.0||3648||2736||none||21.3||10.8||429||55|
Many modern cameras cannot only take still pictures, but also record videos. The D90 indeed provides for movie recording, while the D40X does not. The highest resolution format that the D90 can use is 720/24p.
Beyond body and sensor, cameras can and do differ across a range of features. The D40X and the D90 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 viewfinder in the D90 offers a wider field of view (96%) than the one in the D40X (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the D90 has a higher magnification (0.63x 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 D40X, the Nikon D90, and comparable cameras.
One feature that is present on the D90, but is missing on the D40X is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.
Concerning the storage of imaging data, both the D40X and the D90 write their files to SDHC cards.
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 D40X and Nikon D90 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
Both the D40X and the D90 have been discontinued, but can regularly be found used on eBay. The D40X was replaced by the Nikon D60 , while the D90 was followed by the Nikon D7000. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Nikon website.
So what conclusions can be drawn? Which of the two cameras – the Nikon D40X or the Nikon D90 – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of the Nikon D40X:
- More compact: Is smaller (124x94mm vs 132x103mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 181g or 26 percent) and hence easier to carry around.
- More affordable: Was introduced into a lower priced category (44 percent cheaper at launch).
- More heavily discounted: Has been on the market for longer (launched in March 2007).
Reasons to prefer the Nikon D90:
- More detail: Has more megapixels (12.2 vs 10MP), which boosts linear resolution by 10%.
- Better image quality: Scores markedly higher (10 points) in the DXO overall evaluation.
- More dynamic range: Captures a broader range of light and dark details (1.1 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (0.9 stops ISO advantage).
- Broader imaging potential: Can capture not only stills but also 720/24p video.
- More complete view: Has a viewfinder with a larger field of view (96% vs 95%).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.63x vs 0.53x).
- Easier setting verification: Features a control panel on top to check shooting parameters.
- Larger screen: Has a bigger rear LCD (3.0" vs 2.5") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (920k vs 230k dots).
- Faster burst: Shoots at higher frequency (4.5 vs 3 flaps/sec) to capture the decisive moment.
- Longer lasting: Gets more shots (850 versus 520) out of a single battery charge.
- More modern: Was introduced somewhat (1 year and 5 months) more recently.
If the number of relative strengths (bullet points above) is taken as a guide, the D90 is the clear winner of the contest (13 : 4 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 wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.
How about other alternatives? Do the specifications of the Nikon D40X and the Nikon D90 place the cameras among the top in their class? Find out in the latest Best DSLR Camera listing whether the two cameras rank among the cream of the crop.
In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it says little about, for example, the shooting experience and imaging performance of the D40X and the D90 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 why expert reviews are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], 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.
|1.||Nikon D40X||..||79/100||+ +||4/5||4/5||Mar 2007||729|
|2.||Nikon D90||..||+ +||+ +||4/5||4.5/5||Aug 2008||1,299|
|3.||Canon 40D||..||+ +||+ +||4.5/5||4.5/5||Aug 2007||1,299|
|4.||Nikon D7000||4/5||..||80/100||4.5/5||4.5/5||Sep 2010||1,499|
|5.||Nikon D3100||5/5||+ +||72/100||4.5/5||4.5/5||Aug 2010||599|
|6.||Nikon D300S||5/5||+ +||82/100||4/5||4.5/5||Jul 2009||1,799|
|7.||Nikon D3000||..||+||72/100||4/5||4.5/5||Jul 2009||599|
|8.||Nikon D5000||..||+ +||75/100||4/5||4.5/5||Apr 2009||749|
|9.||Nikon D60||..||80/100||+ +||4/5||4.5/5||Jan 2008||629|
|10.||Nikon D40||..||81/100||+ +||o||4.5/5||Nov 2006||499|
|11.||Nikon D80||..||+||+ +||o||4.5/5||Aug 2006||999|
|12.||Nikon D50||..||78/100||+ +||4/5||4.5/5||Apr 2005||749|
|13.||Olympus E-420||..||85/100||+ +||4/5||4.5/5||Mar 2008||599|
|14.||Panasonic L10||..||85/100||+||3.5/5||4/5||Aug 2007||599|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The review scores listed above should be treated 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 rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, please note that some of the review sites have changed their methodology and reporting over time.
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 use the search menu below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
Specifications: Nikon D40X vs Nikon D90
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 Model||Nikon D40X||Nikon D90|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Nikon F mount lenses||Nikon F mount lenses|
|Launch Date||March 2007||August 2008|
|Launch Price||USD 729||USD 1,299|
|Sensor Specs||Nikon D40X||Nikon D90|
|Sensor Format||APS-C Sensor||APS-C Sensor|
|Sensor Size||23.6 x 15.8 mm||23.6 x 15.8 mm|
|Sensor Area||372.88 mm2||372.88 mm2|
|Sensor Diagonal||28.4 mm||28.4 mm|
|Sensor Resolution||10 Megapixels||12.2 Megapixels|
|Image Resolution||3872 x 2592 pixels||4288 x 2848 pixels|
|Pixel Pitch||6.11 μm||5.53 μm|
|Pixel Density||2.69 MP/cm2||3.28 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||no Video||720/24p Video|
|ISO Setting||100 - 1,600 ISO||200 - 3,200 ISO|
|ISO Boost||100 - 3,200 ISO||200 - 6,400 ISO|
|DXO Sensor Quality (score)||63||73|
|DXO Color Depth (bits)||22.4||22.7|
|DXO Dynamic Range (EV)||11.4||12.5|
|DXO Low Light (ISO)||516||977|
|Screen Specs||Nikon D40X||Nikon D90|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||95%||96%|
|Top-Level Screen||no Top Display||Control Panel|
|LCD Framing||Live View|
|Rear LCD Size||2.5inch||3.0inch|
|LCD Resolution||230k dots||920k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Nikon D40X||Nikon D90|
|Focus System||Phase-detect AF||Phase-detect AF|
|Continuous Shooting||3 shutter flaps/s||4.5 shutter flaps/s|
|Shutter Life Expectancy||50 000 actuations||100 000 actuations|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||SDHC cards||SDHC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||no||no|
|Connectivity Specs||Nikon D40X||Nikon D90|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||no HDMI||mini HDMI|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Nikon D40X||Nikon D90|
|Battery Life (CIPA)||520 shots per charge||850 shots per charge|
124 x 94 x 64 mm
(4.9 x 3.7 x 2.5 in)
132 x 103 x 77 mm
(5.2 x 4.1 x 3.0 in)
|Camera Weight||522 g (18.4 oz)||703 g (24.8 oz)|
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