Canon 40D vs Nikon D5100
The Canon EOS 40D and the Nikon D5100 are two digital cameras that were announced, respectively, in August 2007 and April 2011. 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 16.1 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 D5100? 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 D5100. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. 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 D5100 is notably smaller (21 percent) than the Canon 40D. Moreover, the D5100 is markedly lighter (32 percent) than the 40D. In this context, it is worth noting that neither the 40D nor the D5100 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. 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 (D5100).
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, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.
|1.||Canon 40D||146 mm||108 mm||74 mm||822 g||750||n||Aug 2007||1,299||ebay.com|
|2.||Nikon D5100||128 mm||97 mm||79 mm||560 g||660||n||Apr 2011||749||ebay.com|
|3.||Canon T3||130 mm||100 mm||78 mm||495 g||700||n||Feb 2011||449||ebay.com|
|4.||Canon 60D||145 mm||106 mm||79 mm||755 g||1100||Y||Aug 2010||1,399||ebay.com|
|5.||Canon 50D||146 mm||108 mm||74 mm||822 g||800||Y||Aug 2008||1,299||ebay.com|
|6.||Canon XS||126 mm||98 mm||65 mm||502 g||500||n||Jun 2008||449||ebay.com|
|7.||Canon XSi||129 mm||98 mm||62 mm||524 g||500||n||Jan 2008||799||ebay.com|
|8.||Canon 30D||144 mm||106 mm||74 mm||785 g||750||n||Feb 2006||1,399||ebay.com|
|9.||Canon XTi||127 mm||84 mm||65 mm||556 g||370||n||Aug 2006||799||ebay.com|
|10.||Canon 20D||144 mm||106 mm||72 mm||770 g||700||n||Aug 2004||1,499||ebay.com|
|11.||Canon 10D||150 mm||107 mm||75 mm||850 g||500||n||Feb 2003||1,999||ebay.com|
|12.||Nikon D5500||124 mm||97 mm||70 mm||470 g||820||n||Jan 2015||899||ebay.com|
|13.||Nikon D5300||125 mm||98 mm||76 mm||480 g||600||n||Oct 2013||799||ebay.com|
|14.||Nikon D5200||129 mm||98 mm||78 mm||555 g||500||n||Nov 2012||749||ebay.com|
|15.||Nikon D3100||124 mm||96 mm||75 mm||505 g||550||n||Aug 2010||599||ebay.com|
|16.||Nikon D5000||127 mm||104 mm||80 mm||590 g||510||n||Apr 2009||749||ebay.com|
|17.||Nikon D90||132 mm||103 mm||77 mm||703 g||850||n||Aug 2008||1,299||ebay.com|
|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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The D5100 was launched at a markedly lower price (by 42 percent) than the 40D, which puts it into a different 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. 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 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. 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 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 D5100 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 16.1MP, the D5100 offers a higher resolution than the 40D (10.1MP), but the D5100 has smaller individual pixels (pixel pitch of 4.80μm versus 5.73μm for the 40D). Yet, the D5100 is a much more recent model (by 3 years and 7 months) than the 40D, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units.
The resolution advantage of the Nikon D5100 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the D5100 for good quality output (200 dots per inch) amounts to 24.6 x 16.3 inches or 62.6 x 41.5 cm, for very good quality (250 dpi) 19.7 x 13.1 inches or 50.1 x 33.2 cm, and for excellent quality (300 dpi) 16.4 x 10.9 inches or 41.7 x 27.6 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 D5100 are ISO 100 to ISO 6400, with the possibility to increase the ISO range to 100-25600.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
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 D5100 offers substantially better image quality than the 40D (overall score 16 points higher). The advantage is based on 1.4 bits higher color depth, 2.3 EV in additional dynamic range, and 0.8 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.
|Note: DXO values in italics represent estimates based on sensor size and age.|
Many modern cameras cannot only take still pictures, but also record videos. The D5100 indeed provides for movie recording, while the 40D does not. The highest resolution format that the D5100 can use is 1080/30p.
Apart from body and sensor, cameras can and do differ across a range of features. The 40D and the D5100 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 viewfinders of both cameras offer the same field of view (95%), but the viewfinder of the 40D has a higher magnification than the one of the D5100 (0.59x vs 0.51x), 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 D5100, and comparable cameras.
|1.||Canon 40D||optical||Y||3.0 / 230||fixed||n||1/8000s||6.5/s||Y||n|
|2.||Nikon D5100||optical||n||3.0 / 921||swivel||n||1/4000s||4.0/s||Y||n|
|3.||Canon T3||optical||n||2.7 / 230||fixed||n||1/4000s||3.0/s||Y||n|
|4.||Canon 60D||optical||Y||3.0 / 1040||swivel||n||1/8000s||5.3/s||Y||n|
|5.||Canon 50D||optical||Y||3.0 / 920||fixed||n||1/8000s||6.3/s||Y||n|
|6.||Canon XS||optical||n||2.5 / 230||fixed||n||1/4000s||3.0/s||Y||n|
|7.||Canon XSi||optical||n||3.0 / 230||fixed||n||1/4000s||3.5/s||Y||n|
|8.||Canon 30D||optical||Y||2.5 / 230||fixed||n||1/8000s||5.0/s||Y||n|
|9.||Canon XTi||optical||n||2.5 / 230||fixed||n||1/4000s||3.0/s||Y||n|
|10.||Canon 20D||optical||Y||1.8 / 118||fixed||n||1/8000s||5.0/s||Y||n|
|11.||Canon 10D||optical||Y||1.8 / 118||fixed||n||1/4000s||3.0/s||Y||n|
|12.||Nikon D5500||optical||n||3.2 / 1037||swivel||Y||1/4000s||5.0/s||Y||n|
|13.||Nikon D5300||optical||n||3.2 / 1037||swivel||n||1/4000s||5.0/s||Y||n|
|14.||Nikon D5200||optical||n||3.0 / 921||swivel||n||1/4000s||5.0/s||Y||n|
|15.||Nikon D3100||optical||n||3.0 / 230||fixed||n||1/4000s||3.0/s||Y||n|
|16.||Nikon D5000||optical||n||2.7 / 230||full-flex||n||1/4000s||4.0/s||Y||n|
|17.||Nikon D90||optical||Y||3.0 / 920||fixed||n||1/4000s||4.5/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 40D, but is missing on the D5100 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 D5100 has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the 40D does not have a selfie-screen.
The Nikon D5100 has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.
The 40D writes its imaging data to Compact Flash cards, while the D5100 uses SDXC 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 D5100 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon 40D||Y||- / -||-||-||-||2.0||-||-||-|
|2.||Nikon D5100||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|3.||Canon T3||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|4.||Canon 60D||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|5.||Canon 50D||Y||- / -||-||-||mini||2.0||-||-||-|
|6.||Canon XS||Y||- / -||-||-||-||2.0||-||-||-|
|7.||Canon XSi||Y||- / -||-||-||mini||2.0||-||-||-|
|8.||Canon 30D||Y||- / -||-||-||-||2.0||-||-||-|
|9.||Canon XTi||Y||- / -||-||-||-||2.0||-||-||-|
|10.||Canon 20D||Y||- / -||-||-||-||1.1||-||-||-|
|11.||Canon 10D||Y||- / -||-||-||-||1.1||-||-||-|
|12.||Nikon D5500||Y||stereo / mono||Y||-||mini||2.0||Y||-||-|
|13.||Nikon D5300||Y||stereo / mono||Y||-||mini||2.0||Y||-||-|
|14.||Nikon D5200||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|15.||Nikon D3100||Y||mono / mono||-||-||mini||2.0||-||-||-|
|16.||Nikon D5000||Y||mono / mono||-||-||mini||2.0||-||-||-|
|17.||Nikon D90||Y||mono / mono||-||-||mini||2.0||-||-||-|
Studio photographers will appreciate that the Canon 40D (unlike the D5100) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the 40D and the D5100 have been discontinued, but can regularly be found used on ebay. The 40D was replaced by the Canon 50D, while the D5100 was followed by the Nikon D5200. 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 40D better than the Nikon D5100 or vice versa? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the Canon EOS 40D:
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.59x vs 0.51x).
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (6.5 vs 4 flaps/sec) to capture the decisive moment.
- Longer lasting: Can take more shots (750 versus 660) on a single battery charge.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- More heavily discounted: Has been available for much longer (launched in August 2007).
Arguments in favor of the Nikon D5100:
- More detail: Has more megapixels (16.1 vs 10.1MP), which boosts linear resolution by 26%.
- Better image quality: Scores substantially higher (16 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (1.4 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (2.3 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (0.8 stops ISO advantage).
- Broader imaging potential: Can capture not only stills but also 1080/30p video.
- More detailed LCD: Has a higher resolution rear screen (921k vs 230k dots).
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More compact: Is smaller (128x97mm vs 146x108mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 262g or 32 percent) and is thus easier to take along.
- More affordable: Was introduced into a lower priced category (42 percent cheaper at launch).
- More modern: Reflects 3 years and 7 months of technical progress since the 40D launch.
If the number of relative strengths (bullet points above) is taken as a guide, the D5100 is the clear winner of the contest (14 : 7 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 sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape 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 D5100 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 incomplete and does no justice, for example, to the way the 40D or the D5100 perform in practice. 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 hands-on reviews by experts 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 40D||..||+ +||..||+ +||4.5/5||4.5/5||Aug 2007||1,299||ebay.com|
|2.||Nikon D5100||5/5||+ +||..||76/100||4.5/5||4.5/5||Apr 2011||749||ebay.com|
|3.||Canon T3||..||80/100||..||69/100||4/5||4.5/5||Feb 2011||449||ebay.com|
|4.||Canon 60D||5/5||+||..||79/100||4/5||4.5/5||Aug 2010||1,399||ebay.com|
|5.||Canon 50D||..||+ +||..||+ +||4.5/5||4.5/5||Aug 2008||1,299||ebay.com|
|6.||Canon XS||..||82/100||..||+ +||3.5/5||4.5/5||Jun 2008||449||ebay.com|
|7.||Canon XSi||..||+ +||..||+ +||4/5||4.5/5||Jan 2008||799||ebay.com|
|8.||Canon 30D||..||+ +||..||+ +||o||..||Feb 2006||1,399||ebay.com|
|9.||Canon XTi||..||+ +||..||+ +||o||4/5||Aug 2006||799||ebay.com|
|10.||Canon 20D||..||..||..||+ +||..||..||Aug 2004||1,499||ebay.com|
|11.||Canon 10D||..||..||..||+ +||..||..||Feb 2003||1,999||ebay.com|
|12.||Nikon D5500||5/5||+||..||79/100||4.5/5||4.5/5||Jan 2015||899||ebay.com|
|13.||Nikon D5300||4/5||+ +||..||79/100||4.5/5||4.5/5||Oct 2013||799||ebay.com|
|14.||Nikon D5200||4/5||+ +||..||79/100||4.5/5||4.5/5||Nov 2012||749||ebay.com|
|15.||Nikon D3100||5/5||+ +||..||72/100||4.5/5||4.5/5||Aug 2010||599||ebay.com|
|16.||Nikon D5000||..||+ +||..||75/100||4/5||4.5/5||Apr 2009||749||ebay.com|
|17.||Nikon D90||..||+ +||..||+ +||4/5||4.5/5||Aug 2008||1,299||ebay.com|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The above review scores should be interpreted with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparisons of ratings among very different cameras or across long time periods have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
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.
- Canon 2000D vs Nikon D5100
- Canon 40D vs Canon 5D Mark II
- Canon 40D vs Canon SX1
- Canon 40D vs Olympus E-PL3
- Canon 40D vs Olympus E-PL7
- Canon 40D vs Sony HX350
- Canon 40D vs Sony NEX-3N
- Epson R-D1 vs Nikon D5100
- Nikon D50 vs Nikon D5100
- Nikon D5100 vs Olympus E-300
- Nikon D5100 vs Panasonic G1
- Nikon D5100 vs Panasonic TZ200
Specifications: Canon 40D vs Nikon D5100
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 D5100|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Nikon F mount lenses|
|Launch Date||August 2007||April 2011|
|Launch Price||USD 1,299||USD 749|
|Sensor Specs||Canon 40D||Nikon D5100|
|Sensor Format||APS-C Sensor||APS-C Sensor|
|Sensor Size||22.3 x 14.9 mm||23.6 x 15.7 mm|
|Sensor Area||332.27 mm2||370.52 mm2|
|Sensor Diagonal||26.8 mm||28.3 mm|
|Sensor Resolution||10.1 Megapixels||16.1 Megapixels|
|Image Resolution||3888 x 2592 pixels||4928 x 3264 pixels|
|Pixel Pitch||5.73 μm||4.80 μm|
|Pixel Density||3.03 MP/cm2||4.34 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||no Video||1080/30p Video|
|ISO Setting||100 - 1,600 ISO||100 - 6,400 ISO|
|ISO Boost||100 - 3,200 ISO||100 - 25,600 ISO|
|Image Processor||DIGIC 3||EXPEED 2|
|DXO Sensor Quality (score)||64||80|
|DXO Color Depth (bits)||22.1||23.5|
|DXO Dynamic Range (EV)||11.3||13.6|
|DXO Low Light (ISO)||703||1183|
|Screen Specs||Canon 40D||Nikon D5100|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||95%||95%|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||230k dots||921k dots|
|LCD Attachment||Fixed screen||Swivel screen|
|Shooting Specs||Canon 40D||Nikon D5100|
|Focus System||Phase-detect AF||Phase-detect AF|
|Continuous Shooting||6.5 shutter flaps/s||4 shutter flaps/s|
|Shutter Life Expectancy||100 000 actuations||100 000 actuations|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||CF cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|Connectivity Specs||Canon 40D||Nikon D5100|
|Studio Flash||PC Sync socket||no PC Sync|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||no HDMI||mini HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Canon 40D||Nikon D5100|
|Battery Life (CIPA)||750 shots per charge||660 shots per charge|
146 x 108 x 74 mm
(5.7 x 4.3 x 2.9 in)
128 x 97 x 79 mm
(5.0 x 3.8 x 3.1 in)
|Camera Weight||822 g (29.0 oz)||560 g (19.8 oz)|
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