Canon 6D vs Nikon D40X
The Canon EOS 6D and the Nikon D40X are two digital cameras that were announced, respectively, in September 2012 and March 2007. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (6D) and an APS-C (D40X) sensor. The Canon has a resolution of 20 megapixels, whereas the Nikon provides 10 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 6D and the Nikon D40X? 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 Canon 6D and the Nikon D40X is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All size dimensions are rounded to the nearest millimeter.
The D40X can be obtained in two different colors (black, silver), while the 6D 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 D40X is notably smaller (28 percent) than the Canon 6D. Moreover, the D40X is markedly lighter (32 percent) than the 6D. It is worth mentioning in this context that the 6D is splash and dust resistant, while the D40X 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. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Canon EF Lens Catalog (6D) and the Nikon Lens Catalog (D40X).
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.
|1.||Canon 6D||145 mm||111 mm||71 mm||770 g||1090||Y||Sep 2012||2,099|
|2.||Nikon D40X||124 mm||94 mm||64 mm||522 g||520||n||Mar 2007||729|
|3.||Canon 6D Mark II||144 mm||111 mm||75 mm||765 g||1200||Y||Jun 2017||1,999|
|4.||Canon 1D X Mark II||158 mm||168 mm||83 mm||1530 g||1210||Y||Feb 2016||5,999|
|5.||Canon 5DS||152 mm||116 mm||76 mm||930 g||700||Y||Feb 2015||3,699|
|6.||Canon 7D II||149 mm||112 mm||78 mm||910 g||670||Y||Sep 2014||1,799|
|7.||Canon 70D||139 mm||104 mm||79 mm||755 g||920||Y||Jul 2013||1,199|
|8.||Canon 5D Mark III||152 mm||116 mm||76 mm||950 g||950||Y||Mar 2012||3,499|
|9.||Canon 1D X||158 mm||168 mm||83 mm||1551 g||1120||Y||Oct 2011||6,799|
|10.||Canon 5D Mark II||152 mm||114 mm||75 mm||850 g||850||Y||Sep 2008||3,499|
|11.||Nikon D610||141 mm||113 mm||82 mm||850 g||900||Y||Oct 2013||1,999|
|12.||Nikon D600||141 mm||113 mm||82 mm||850 g||900||Y||Sep 2012||2,099|
|13.||Nikon D3000||126 mm||97 mm||64 mm||536 g||500||n||Jul 2009||599|
|14.||Nikon D5000||127 mm||104 mm||80 mm||590 g||510||n||Apr 2009||749|
|15.||Nikon D60||126 mm||94 mm||64 mm||522 g||500||n||Jan 2008||629|
|16.||Nikon D40||124 mm||94 mm||64 mm||522 g||470||n||Nov 2006||499|
|17.||Nikon D80||132 mm||103 mm||77 mm||668 g||600||n||Aug 2006||999|
|Note: 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 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 65 percent) than the 6D, 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. 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.
Of the two cameras under consideration, the Canon 6D features a full frame sensor and the Nikon D40X an APS-C sensor. The sensor area in the D40X is 57 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 20MP, the 6D offers a higher resolution than the D40X (10MP), but the 6D nevertheless has larger individual pixels (pixel pitch of 6.57μm versus 6.11μm for the D40X) due to its larger sensor. Moreover, the 6D is a much more recent model (by 5 years and 6 months) than the D40X, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.
The resolution advantage of the Canon 6D implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 6D for good quality output (200 dots per inch) amounts to 27.4 x 18.2 inches or 69.5 x 46.3 cm, for very good quality (250 dpi) 21.9 x 14.6 inches or 55.6 x 37.1 cm, and for excellent quality (300 dpi) 18.2 x 12.2 inches or 46.3 x 30.9 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 Canon EOS 6D has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 50-102400. The corresponding ISO settings for the Nikon D40X are ISO 100 to ISO 1600, with the possibility to increase the ISO range to 100-3200.
For many cameras, data on sensor performance has been reported by DXO Mark. 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 review, the 6D provides substantially higher image quality than the D40X, with an overall score that is 19 points higher. This advantage is based on 1.4 bits higher color depth, 0.7 EV in additional dynamic range, and 2.2 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.
|1.||Canon 6D||Full Frame||20.0||5472||3648||1080/30p||23.8||12.1||2340||82|
|3.||Canon 6D Mark II||Full Frame||26.0||6240||4160||1080/60p||24.4||11.9||2862||85|
|4.||Canon 1D X Mark II||Full Frame||20.0||5472||3648||4K/60p||24.1||13.5||3207||88|
|5.||Canon 5DS||Full Frame||50.3||8688||5792||1080/30p||24.7||12.4||2381||87|
|6.||Canon 7D II||APS-C||20.0||5472||3648||1080/60p||22.4||11.8||1082||70|
|8.||Canon 5D Mark III||Full Frame||22.1||5760||3840||1080/30p||24.0||11.7||2293||81|
|9.||Canon 1D X||Full Frame||17.9||5184||3456||1080/30p||23.8||11.8||2786||82|
|10.||Canon 5D Mark II||Full Frame||21.0||5616||3744||1080/30p||23.7||11.9||1815||79|
|11.||Nikon D610||Full Frame||24.2||6016||4016||1080/30p||25.1||14.4||2925||94|
|12.||Nikon D600||Full Frame||24.2||6016||4016||1080/30p||25.1||14.2||2980||94|
Many modern cameras cannot only take still pictures, but also record videos. The 6D indeed provides movie recording capabilities, while the D40X does not. The highest resolution format that the 6D can use is 1080/30p.
Beyond body and sensor, cameras can and do differ across a range of features. The 6D and the D40X 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 6D offers a wider field of view (97%) 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 6D has a higher magnification (0.71x vs 0.53x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Canon 6D and Nikon D40X in connection with corresponding information for a sample of similar cameras.
|1.||Canon 6D||optical||Y||3.0 / 1040||fixed||n||1/4000s||4.5/s||n||n|
|2.||Nikon D40X||optical||n||2.5 / 230||fixed||n||1/4000s||3.0/s||Y||n|
|3.||Canon 6D Mark II||optical||Y||3.0 / 1040||swivel||Y||1/4000s||6.5/s||n||n|
|4.||Canon 1D X Mark II||optical||Y||3.2 / 1620||fixed||Y||1/8000s||16.0/s||n||n|
|5.||Canon 5DS||optical||Y||3.2 / 1040||fixed||n||1/8000s||5.0/s||n||n|
|6.||Canon 7D II||optical||Y||3.0 / 1040||fixed||n||1/8000s||10.0/s||Y||n|
|7.||Canon 70D||optical||Y||3.0 / 1040||swivel||Y||1/8000s||7.0/s||Y||n|
|8.||Canon 5D Mark III||optical||Y||3.2 / 1040||fixed||n||1/8000s||6.0/s||n||n|
|9.||Canon 1D X||optical||Y||3.2 / 1040||fixed||n||1/8000s||14.0/s||n||n|
|10.||Canon 5D Mark II||optical||Y||3.0 / 920||fixed||n||1/8000s||3.9/s||n||n|
|11.||Nikon D610||optical||Y||3.2 / 921||fixed||n||1/4000s||6.0/s||Y||n|
|12.||Nikon D600||optical||Y||3.0 / 921||fixed||n||1/4000s||5.5/s||Y||n|
|13.||Nikon D3000||optical||n||3.0 / 230||fixed||n||1/4000s||3.0/s||Y||n|
|14.||Nikon D5000||optical||n||2.7 / 230||full-flex||n||1/4000s||4.0/s||Y||n|
|15.||Nikon D60||optical||n||2.5 / 230||fixed||n||1/4000s||3.0/s||Y||n|
|16.||Nikon D40||optical||n||2.5 / 230||fixed||n||1/4000s||2.5/s||Y||n|
|17.||Nikon D80||optical||n||2.5 / 230||fixed||n||1/4000s||3.0/s||Y||n|
|Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.|
One feature that is present on the 6D, 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.
The 6D writes its imaging data to SDXC cards, while the D40X uses SDHC cards. The 6D supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the D40X cannot take advantage of Ultra High Speed SD 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 6D and Nikon D40X and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon 6D||Y||mono / mono||Y||-||mini||2.0||Y||-||-|
|2.||Nikon D40X||Y||- / -||-||-||-||2.0||-||-||-|
|3.||Canon 6D Mark II||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|4.||Canon 1D X Mark II||Y||mono / mono||Y||Y||mini||3.0||-||-||-|
|5.||Canon 5DS||Y||mono / mono||Y||-||mini||3.0||-||-||-|
|6.||Canon 7D II||Y||stereo / mono||Y||Y||mini||3.0||-||-||-|
|7.||Canon 70D||Y||stereo / mono||Y||-||mini||2.0||Y||-||-|
|8.||Canon 5D Mark III||Y||mono / mono||Y||Y||mini||2.0||-||-||-|
|9.||Canon 1D X||Y||mono / -||Y||-||mini||2.0||-||-||-|
|10.||Canon 5D Mark II||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|11.||Nikon D610||Y||mono / mono||Y||Y||mini||2.0||-||-||-|
|12.||Nikon D600||Y||mono / mono||Y||Y||mini||2.0||-||-||-|
|13.||Nikon D3000||Y||- / -||-||-||-||2.0||-||-||-|
|14.||Nikon D5000||Y||mono / mono||-||-||mini||2.0||-||-||-|
|15.||Nikon D60||Y||- / -||-||-||-||2.0||-||-||-|
|16.||Nikon D40||Y||- / -||-||-||-||2.0||-||-||-|
|17.||Nikon D80||Y||- / -||-||-||-||2.0||-||-||-|
It is notable that the 6D offers wifi support, while the D40X does not. Wifi can be a very convenient means to transfer image data to an off-camera location.
Travel and landscape photographers will find it useful that the 6D has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.
Both the 6D and the D40X have been discontinued, but can regularly be found used on eBay. The D40X was replaced by the Nikon D60 , while the 6D was followed by the Canon 6D Mark II. 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 how do things add up? Is the Canon 6D better than the Nikon D40X or vice versa? Below is a summary of the relative strengths of each of the two contestants.
Advantages of the Canon EOS 6D:
- More detail: Offers more megapixels (20 vs 10MP) with a 41% higher linear resolution.
- Better image quality: Scores substantially higher (19 points) in the DXO overall assessment.
- Richer colors: Generates images with noticeably better colors (1.4 bits more color depth).
- More dynamic range: Captures a larger spectrum of light and dark details (0.7 EV of extra DR).
- Better low-light sensitivity: Requires less light for good images (2.2 stops ISO advantage).
- Broader imaging potential: Can record not only still images but also 1080/30p movies.
- More complete view: Has a viewfinder with a larger field of view (97% vs 95%).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.71x vs 0.53x).
- Easier setting verification: Features an LCD display on top to control 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 (1040k vs 230k dots).
- Faster burst: Shoots at higher frequency (4.5 vs 3 flaps/sec) to capture the decisive moment.
- Longer lasting: Can take more shots (1090 versus 520) on a single battery charge.
- Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
- Easier geotagging: Features an internal GPS sensor to log localization data.
- 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 5 years and 6 months of technical progress since the D40X launch.
Reasons to prefer the Nikon D40X:
- More compact: Is smaller (124x94mm vs 145x111mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 248g or 32 percent) and is thus easier to take along.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- More affordable: Was introduced into a lower priced category (65 percent cheaper at launch).
- More heavily discounted: Has been around for much longer (launched in March 2007).
If the count of relative strengths (bullet points above) is taken as a measure, the 6D is the clear winner of the match-up (18 : 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.
How about other alternatives? Do the specifications of the Canon 6D and the Nikon D40X 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 the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the 6D or the D40X. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.
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.
|1.||Canon 6D||5/5||+ +||..||83/100||4.5/5||4.5/5||Sep 2012||2,099|
|2.||Nikon D40X||..||79/100||..||+ +||4/5||4/5||Mar 2007||729|
|3.||Canon 6D Mark II||4/5||+||4/5||80/100||4.5/5||4/5||Jun 2017||1,999|
|4.||Canon 1D X Mark II||..||..||4.5/5||89/100||4.5/5||4.5/5||Feb 2016||5,999|
|5.||Canon 5DS||..||+||..||83/100||4.5/5||4.5/5||Feb 2015||3,699|
|6.||Canon 7D II||4.5/5||+||3.5/5||84/100||4/5||4.5/5||Sep 2014||1,799|
|7.||Canon 70D||5/5||+ +||..||83/100||4.5/5||5/5||Jul 2013||1,199|
|8.||Canon 5D Mark III||..||+ +||..||82/100||4.5/5||4.5/5||Mar 2012||3,499|
|9.||Canon 1D X||5/5||..||..||..||4.5/5||4.5/5||Oct 2011||6,799|
|10.||Canon 5D Mark II||4/5||91/100||..||79/100||4/5||..||Sep 2008||3,499|
|11.||Nikon D610||4/5||+ +||..||87/100||4.5/5||4.5/5||Oct 2013||1,999|
|12.||Nikon D600||4/5||+ +||..||87/100||5/5||4.5/5||Sep 2012||2,099|
|13.||Nikon D3000||..||+||..||72/100||4/5||4.5/5||Jul 2009||599|
|14.||Nikon D5000||..||+ +||..||75/100||4/5||4.5/5||Apr 2009||749|
|15.||Nikon D60||..||80/100||..||+ +||4/5||4.5/5||Jan 2008||629|
|16.||Nikon D40||..||81/100||..||+ +||o||4.5/5||Nov 2006||499|
|17.||Nikon D80||..||+||..||+ +||o||4.5/5||Aug 2006||999|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
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. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. 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? 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. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
Specifications: Canon 6D vs Nikon D40X
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 6D||Nikon D40X|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Nikon F mount lenses|
|Launch Date||September 2012||March 2007|
|Launch Price||USD 2,099||USD 729|
|Sensor Specs||Canon 6D||Nikon D40X|
|Sensor Format||Full Frame Sensor||APS-C Sensor|
|Sensor Size||36.0 x 24.0 mm||23.6 x 15.8 mm|
|Sensor Area||864 mm2||372.88 mm2|
|Sensor Diagonal||43.3 mm||28.4 mm|
|Sensor Resolution||20 Megapixels||10 Megapixels|
|Image Resolution||5472 x 3648 pixels||3872 x 2592 pixels|
|Pixel Pitch||6.57 μm||6.11 μm|
|Pixel Density||2.31 MP/cm2||2.69 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/30p Video||no Video|
|ISO Setting||100 - 25,600 ISO||100 - 1,600 ISO|
|ISO Boost||50 - 102,400 ISO||100 - 3,200 ISO|
|Image Processor||DIGIC 5+||EXPEED|
|DXO Sensor Quality (score)||82||63|
|DXO Color Depth (bits)||23.8||22.4|
|DXO Dynamic Range (EV)||12.1||11.4|
|DXO Low Light (ISO)||2340||516|
|Screen Specs||Canon 6D||Nikon D40X|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||97%||95%|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View|
|Rear LCD Size||3.0inch||2.5inch|
|LCD Resolution||1040k dots||230k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Canon 6D||Nikon D40X|
|Focus System||Phase-detect AF||Phase-detect AF|
|Continuous Shooting||4.5 shutter flaps/s||3 shutter flaps/s|
|Shutter Life Expectancy||100 000 actuations||50 000 actuations|
|Fill Flash||no On-Board Flash||Built-in Flash|
|Storage Medium||SDXC cards||SDHC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-I||no|
|Connectivity Specs||Canon 6D||Nikon D40X|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||no HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Wifi Support||Wifi built-in||no Wifi|
|Geotagging||GPS built-in||no internal GPS|
|Body Specs||Canon 6D||Nikon D40X|
|Environmental Sealing||Weathersealed body||not weather sealed|
|Battery Life (CIPA)||1090 shots per charge||520 shots per charge|
145 x 111 x 71 mm
(5.7 x 4.4 x 2.8 in)
124 x 94 x 64 mm
(4.9 x 3.7 x 2.5 in)
|Camera Weight||770 g (27.2 oz)||522 g (18.4 oz)|
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