Canon 40D vs Nikon D2X
The Canon EOS 40D and the Nikon D2X are two digital cameras that were revealed to the public, respectively, in August 2007 and September 2004. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The Canon has a resolution of 10.1 megapixels, whereas the Nikon 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 Canon EOS 40D and the Nikon D2X? 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.
The side-by-side display below illustrates the physical size and weight of the Canon 40D and the Nikon D2X. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth dimensions are rounded to the nearest millimeter.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Nikon D2X is considerably larger (50 percent) than the Canon 40D. Moreover, the D2X is substantially heavier (52 percent) than the 40D. It is noteworthy in this context that the D2X is splash and dust-proof, while the 40D 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. Yet, since both cameras are based around an APS-C sensor, their respective lenses will tend to have similar dimensions and heft. You can compare the optics available for the two cameras in the Canon EF Lens Catalog (40D) and the Nikon Lens Catalog (D2X).
Concerning battery life, the 40D gets 750 shots out of its BP-511A battery, while the D2X can take 3800 images on a single charge of its EN-EL4a power pack. As can be seen in the images above, the D2X has a battery grip built in. This facilitates image-taking in portrait orientation and gives it additional battery power. In order to provide similar functionality for the 40D, Canon provides the BG-E2N vertical grip as an optional accessory (see here on eBay).
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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.
|Canon 40D||5.7 in||4.3 in||2.9 in||29.0 oz||750||n||Aug 2007||1,299|
|Nikon D2X||6.2 in||5.9 in||3.4 in||44.2 oz||3800||Y||Sep 2004||4,999|
|Canon T3||5.1 in||3.9 in||3.1 in||17.5 oz||700||n||Feb 2011||449|
|Canon 60D||5.7 in||4.2 in||3.1 in||26.6 oz||1100||Y||Aug 2010||1,399|
|Canon 50D||5.7 in||4.3 in||2.9 in||29.0 oz||800||Y||Aug 2008||1,299|
|Canon XS||5.0 in||3.9 in||2.6 in||17.7 oz||500||n||Jun 2008||449|
|Canon XSi||5.1 in||3.9 in||2.4 in||18.5 oz||500||n||Jan 2008||799|
|Canon 30D||5.7 in||4.2 in||2.9 in||27.7 oz||750||n||Feb 2006||1,399|
|Canon XTi||5.0 in||3.3 in||2.6 in||19.6 oz||370||n||Aug 2006||799|
|Canon 20D||5.7 in||4.2 in||2.8 in||27.2 oz||700||n||Aug 2004||1,499|
|Canon 10D||5.9 in||4.2 in||3.0 in||30.0 oz||500||n||Feb 2003||1,999|
|Nikon D90||5.2 in||4.1 in||3.0 in||24.8 oz||850||n||Aug 2008||1,299|
|Nikon D2Xs||6.2 in||5.9 in||3.4 in||44.2 oz||3800||Y||Jun 2006||4,699|
|Nikon D200||5.8 in||4.4 in||2.9 in||32.5 oz||400||Y||Nov 2005||1,699|
|Nikon D2H||6.2 in||5.9 in||3.4 in||37.7 oz||2900||Y||Jul 2003||3,499|
|Nikon D1X||6.2 in||6.0 in||3.3 in||38.8 oz||1200||Y||Feb 2001||5,999|
|Nikon D1||6.2 in||6.0 in||3.3 in||38.8 oz||..||Y||Jun 1999||5,499|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The 40D was launched at a markedly lower price (by 74 percent) than the D2X, 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 size of the sensor inside a digital camera is one of the key determinants 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 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, but their sensors differ slightly in size. The sensor area in the D2X is 12 percent bigger. As a result of these sensor size differences, the cameras have format factors, respectively, of 1.6 (40D) and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 12.2MP, the D2X offers a higher resolution than the 40D (10.1MP), but the D2X has smaller individual pixels (pixel pitch of 5.52μm versus 5.73μm for the 40D). Yet, the 40D is a much more recent model (by 2 years and 11 months) than the D2X, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units.
The resolution advantage of the Nikon D2X implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the D2X 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 Canon 40D are 19.4 x 13 inches or 49.4 x 32.9 cm for good quality, 15.6 x 10.4 inches or 39.5 x 26.3 cm for very good quality, and 13 x 8.6 inches or 32.9 x 21.9 cm for excellent quality prints.
The Canon EOS 40D 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 D2X are ISO 100 to ISO 800, with the possibility to increase the ISO range to 100-3200.
Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 40D has a notably higher overall DXO score than the D2X (overall score 5 points higher), which gives it an advantage in terms of imaging quality. 0.4 EV in additional dynamic range, and 0.6 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.
| DXO |
Apart from body and sensor, cameras can and do differ across a range of features. The 40D and the D2X 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 D2X offers a wider field of view (100%) than the one in the 40D (95%), so that a larger proportion of the captured image is visible in the finder. On the other hand, the viewfinder of the 40D has a higher magnification (0.59x vs 0.57x), 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 Canon 40D, the Nikon D2X, and comparable cameras.
One difference between the cameras concerns the presence of an on-board flash. The 40D has one, while the D2X does not. While the built-in flash of the 40D is not very powerful, it can at times be useful as a fill-in light.
Concerning the storage of imaging data, both the 40D and the D2X write their files to Compact Flash 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 Canon EOS 40D and Nikon D2X and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.
Both the 40D and the D2X have been discontinued, but can regularly be found used on eBay. The D2X was replaced by the Nikon D2Xs, while the 40D was followed by the Canon 50D. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Nikon websites.
So what is the bottom line? Is there a clear favorite between the Canon 40D and the Nikon D2X? Which camera is better? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Canon EOS 40D:
- Better image quality: Scores markedly higher (5 points) in the DXO overall assessment.
- Better low-light sensitivity: Requires less light for good images (0.6 stops ISO advantage).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.59x vs 0.57x).
- Larger screen: Has a bigger rear LCD (3.0" vs 2.5") for image review and settings control.
- Faster burst: Shoots at higher frequency (6.5 vs 5 flaps/sec) to capture the decisive moment.
- More compact: Is smaller (146x108mm vs 158x150mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 430g or 34 percent) and hence easier to carry around.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More affordable: Was introduced into a lower priced category (74 percent cheaper at launch).
- More modern: Reflects 2 years and 11 months of technical progress since the D2X launch.
Reasons to prefer the Nikon D2X:
- More detail: Has more megapixels (12.2 vs 10.1MP), which boosts linear resolution by 10%.
- More complete view: Has a viewfinder with a larger field of view (100% vs 95%).
- More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
- Longer lasting: Gets more shots (3800 versus 750) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- More heavily discounted: Has been around for much longer (launched in September 2004).
If the count of individual advantages (bullet points above) is taken as a guide, the 40D is the clear winner of the match-up (10 : 6 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.
How about other alternatives? Do the specifications of the Canon 40D and the Nikon D2X 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 remains incomplete and does no justice, for example, to the way the 40D or the D2X 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 where reviews by experts come in. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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.
|Canon 40D||+ +||+ +||4.5/5||o||4.5/5||Aug 2007||1,299|
|Nikon D2X||..||+ +||..||o||..||Sep 2004||4,999|
|Canon T3||80/100||69/100||4/5||4/5||4.5/5||Feb 2011||449|
|Canon 60D||+||79/100||4/5||5/5||4.5/5||Aug 2010||1,399|
|Canon 50D||+ +||+ +||4.5/5||5/5||4.5/5||Aug 2008||1,299|
|Canon XS||82/100||+ +||3.5/5||4/5||4.5/5||Jun 2008||449|
|Canon XSi||+ +||+ +||4/5||5/5||4.5/5||Jan 2008||799|
|Canon 30D||+ +||+ +||o||o||..||Feb 2006||1,399|
|Canon XTi||+ +||+ +||o||4.5/5||4/5||Aug 2006||799|
|Canon 20D||..||+ +||..||o||..||Aug 2004||1,499|
|Canon 10D||..||+ +||..||o||..||Feb 2003||1,999|
|Nikon D90||+ +||+ +||4/5||5/5||4.5/5||Aug 2008||1,299|
|Nikon D2Xs||..||..||..||o||..||Jun 2006||4,699|
|Nikon D200||+ +||+ +||o||5/5||..||Nov 2005||1,699|
|Nikon D2H||..||+ +||..||o||..||Jul 2003||3,499|
|Nikon D1X||..||+ +||..||o||..||Feb 2001||5,999|
|Nikon D1||..||+ +||..||..||..||Jun 1999||5,499|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The review scores listed above should be treated with care, though. The ratings are only valid when referring 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 rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. 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? In case you are interested in seeing how other cameras pair up, just make a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
Specifications: Canon 40D vs Nikon D2X
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||Canon 40D||Nikon D2X|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Nikon F mount lenses|
|Launch Date||August 2007||September 2004|
|Launch Price||USD 1,299||USD 4,999|
|Sensor Specs||Canon 40D||Nikon D2X|
|Sensor Format||APS-C Sensor||APS-C Sensor|
|Sensor Size||22.3 x 14.9 mm||23.7 x 15.7 mm|
|Sensor Area||332.27 mm2||372.09 mm2|
|Sensor Diagonal||26.8 mm||28.4 mm|
|Sensor Resolution||10.1 Megapixels||12.2 Megapixels|
|Image Resolution||3888 x 2592 pixels||4288 x 2848 pixels|
|Pixel Pitch||5.73 μm||5.52 μm|
|Pixel Density||3.03 MP/cm2||3.28 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||no Video||no Video|
|ISO Setting||100 - 1,600 ISO||100 - 800 ISO|
|ISO Boost||100 - 3,200 ISO||100 - 3,200 ISO|
|DXO Sensor Quality (score)||64||59|
|DXO Color Depth (bits)||22.1||22.1|
|DXO Dynamic Range (EV)||11.3||10.9|
|DXO Low Light (ISO)||703||476|
|Screen Specs||Canon 40D||Nikon D2X|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||95%||100%|
|Top-Level Screen||Control Panel||Control Panel|
|LCD Framing||Live View|
|Rear LCD Size||3.0inch||2.5inch|
|LCD Resolution||230k dots||235k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Canon 40D||Nikon D2X|
|Focus System||Phase-detect AF||Phase-detect AF|
|Continuous Shooting||6.5 shutter flaps/s||5 shutter flaps/s|
|Shutter Life Expectancy||100 000 actuations||150 000 actuations|
|Fill Flash||Build-in Flash||no On-Board Flash|
|Storage Medium||CF cards||CF cards|
|Second Storage Option||Single card slot||Single card slot|
|Connectivity Specs||Canon 40D||Nikon D2X|
|Studio Flash||PC Sync socket||PC Sync socket|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||no HDMI||no HDMI|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Canon 40D||Nikon D2X|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||750 shots per charge||3800 shots per charge|
146 x 108 x 74 mm
(5.7 x 4.3 x 2.9 in)
158 x 150 x 86 mm
(6.2 x 5.9 x 3.4 in)
|Camera Weight||822 g (29.0 oz)||1252 g (44.2 oz)|
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