Canon XSi vs Nikon D40
The Canon EOS Rebel XSi (called Canon 450D in some regions) and the Nikon D40 are two digital cameras that were announced, respectively, in January 2008 and November 2006. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The Canon has a resolution of 12.2 megapixels, whereas the Nikon provides 6 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Canon XSi||Nikon D40|
|Digital single lens reflex||Digital single lens reflex|
|Canon EF mount lenses||Nikon F mount lenses|
|12.2 MP, APS-C Sensor||6 MP, APS-C Sensor|
|no Video||no Video|
|ISO 100-1,600||ISO 200-1,600 (200 - 3,200)|
|Optical viewfinder||Optical viewfinder|
|3.0 LCD, 230k dots||2.5 LCD, 230k dots|
|Fixed screen (not touch-sensitive)||Fixed screen (not touch-sensitive)|
|3.5 shutter flaps per second||2.5 shutter flaps per second|
|500 shots per battery charge||470 shots per battery charge|
|129 x 98 x 62 mm, 524 g||124 x 94 x 64 mm, 522 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS Rebel XSi and the Nikon D40? 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 XSi and the Nikon D40. 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 D40 is notably smaller (8 percent) than the Canon XSi. Moreover, the D40 is slightly lighter (0 percent) than the XSi. In this context, it is worth noting that neither the XSi nor the D40 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 (XSi) and the Nikon Lens Catalog (D40).
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 camera comparisons there.
|Canon XSi||129 mm||98 mm||62 mm||524 g||500||n||Jan 2008||799|
|Nikon D40||124 mm||94 mm||64 mm||522 g||470||n||Nov 2006||499|
|Canon T6i||132 mm||101 mm||78 mm||555 g||440||n||Feb 2015||749|
|Canon T6s||132 mm||101 mm||78 mm||565 g||440||n||Feb 2015||649|
|Canon T4i||133 mm||100 mm||79 mm||575 g||440||n||Jun 2012||849|
|Canon T3||130 mm||100 mm||78 mm||495 g||700||n||Feb 2011||449|
|Canon T2i||129 mm||98 mm||62 mm||530 g||440||n||Feb 2010||699|
|Canon T1i||129 mm||98 mm||62 mm||520 g||400||n||Mar 2009||799|
|Canon XS||126 mm||98 mm||65 mm||502 g||500||n||Jun 2008||449|
|Canon 40D||146 mm||108 mm||74 mm||822 g||750||n||Aug 2007||1,299|
|Canon XTi||127 mm||84 mm||65 mm||556 g||370||n||Aug 2006||799|
|Canon XT||127 mm||94 mm||64 mm||540 g||400||n||Feb 2005||899|
|Nikon D3400||124 mm||98 mm||76 mm||445 g||1200||n||Aug 2016||499|
|Nikon D3300||124 mm||98 mm||76 mm||430 g||700||n||Jan 2014||499|
|Nikon D3100||124 mm||96 mm||75 mm||505 g||550||n||Aug 2010||599|
|Nikon D40X||124 mm||94 mm||64 mm||522 g||520||n||Mar 2007||729|
|Nikon D50||133 mm||102 mm||76 mm||620 g||400||n||Apr 2005||749|
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.
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 D40 was launched at a markedly lower price (by 38 percent) than the XSi, 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 size of the imaging sensor is a crucial determinant 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 D40 is 12 percent bigger. As a result of these sensor size differences, the cameras have format factors, respectively, of 1.6 (XSi) and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Despite having a smaller sensor, the Canon XSi offers a higher resolution of 12.2 megapixels, compared with 6 MP of the Nikon D40. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 5.19μm versus 7.85μm for the D40). However, it should be noted that the XSi is a somewhat more recent model (by 1 year and 2 months) than the D40, and its sensor might have benefitted from technological advances during this time that partly offset its pixel-size disadvantage.
The resolution advantage of the Canon XSi implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the XSi for good quality output (200 dots per inch) amounts to 21.4 x 14.2 inches or 54.3 x 36.2 cm, for very good quality (250 dpi) 17.1 x 11.4 inches or 43.4 x 28.9 cm, and for excellent quality (300 dpi) 14.2 x 9.5 inches or 36.2 x 24.1 cm. The corresponding values for the Nikon D40 are 15 x 10 inches or 38.2 x 25.4 cm for good quality, 12 x 8 inches or 30.6 x 20.3 cm for very good quality, and 10 x 6.7 inches or 25.5 x 16.9 cm for excellent quality prints.
The Canon EOS Rebel XSi has a native sensitivity range from ISO 100 to ISO 1600. The corresponding ISO settings for the Nikon D40 are ISO 200 to ISO 1600, with the possibility to increase the ISO range to 200-3200.
For many cameras, data on sensor performance has been reported by DXO Mark. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). Of the two cameras under review, the XSi has a notably higher overall DXO score than the D40 (overall score 5 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 0.9 bits higher color depth, 0.2 EV of lower 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.
Apart from body and sensor, cameras can and do differ across a range of features. The XSi and the D40 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 XSi has a higher magnification than the one of the D40 (0.54x 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 Canon XSi, the Nikon D40, and comparable cameras.
Concerning the storage of imaging data, both the XSi and the D40 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 Canon EOS Rebel XSi and Nikon D40 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
Both the XSi and the D40 have been discontinued, but can regularly be found used on eBay. The D40 was replaced by the Nikon D40X, while the XSi was followed by the Canon T1i. 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 XSi better than the Nikon D40 or vice versa? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the Canon EOS Rebel XSi:
- More detail: Offers more megapixels (12.2 vs 6MP) with a 42% higher linear resolution.
- Better image quality: Scores markedly higher (5 points) in the DXO overall assessment.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.54x vs 0.53x).
- Larger screen: Has a bigger rear LCD (3.0" vs 2.5") for image review and settings control.
- Faster burst: Shoots at higher frequency (3.5 vs 2.5 flaps/sec) to capture the decisive moment.
- More modern: Is somewhat more recent (announced 1 year and 2 months after the D40).
Arguments in favor of the Nikon D40:
- More affordable: Was introduced into a lower priced category (38 percent cheaper at launch).
- More heavily discounted: Has been on the market for longer (launched in November 2006).
If the number of relative strengths (bullet points above) is taken as a guide, the XSi is the clear winner of the match-up (6 : 2 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 XSi and the Nikon D40 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 XSi or the D40 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 (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 XSi||+ +||+ +||4/5||5/5||4.5/5||Jan 2008||799|
|Nikon D40||81/100||+ +||o||5/5||4.5/5||Nov 2006||499|
|Canon T6i||..||75/100||4.5/5||4.5/5||4.5/5||Feb 2015||749|
|Canon T6s||+||77/100||4.5/5||4.5/5||4.5/5||Feb 2015||649|
|Canon T4i||+ +||77/100||4.5/5||4.5/5||4.5/5||Jun 2012||849|
|Canon T3||80/100||69/100||4/5||4/5||4.5/5||Feb 2011||449|
|Canon T2i||+ +||77/100||4/5||5/5||4.5/5||Feb 2010||699|
|Canon T1i||+ +||74/100||4.5/5||5/5||4.5/5||Mar 2009||799|
|Canon XS||82/100||+ +||3.5/5||4/5||4.5/5||Jun 2008||449|
|Canon 40D||+ +||+ +||4.5/5||o||4.5/5||Aug 2007||1,299|
|Canon XTi||+ +||+ +||o||4.5/5||4/5||Aug 2006||799|
|Canon XT||80/100||+ +||o||o||..||Feb 2005||899|
|Nikon D3400||+||76/100||4/5||4.5/5||4.5/5||Aug 2016||499|
|Nikon D3300||+||77/100||4.5/5||4.5/5||4.5/5||Jan 2014||499|
|Nikon D3100||+ +||72/100||4.5/5||5/5||4.5/5||Aug 2010||599|
|Nikon D40X||79/100||+ +||4/5||o||4/5||Mar 2007||729|
|Nikon D50||78/100||+ +||4/5||o||4.5/5||Apr 2005||749|
|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 G5 X vs Nikon D40
- Canon M6 Mark II vs Nikon D40
- Canon Rebel vs Nikon D40
- Canon XSi vs Olympus E-M10 III
- Canon XSi vs Sony A5000
- Fujifilm X-T2 vs Nikon D40
- Fujifilm X-T20 vs Nikon D40
- Leica D-LUX 6 vs Nikon D40
- Nikon Coolpix A vs Nikon D40
- Nikon D40 vs Nikon D5100
- Nikon D40 vs Panasonic GX9
- Nikon D40 vs Sony RX0
Specifications: Canon XSi vs Nikon D40
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 XSi||Nikon D40|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Nikon F mount lenses|
|Launch Date||January 2008||November 2006|
|Launch Price||USD 799||USD 499|
|Sensor Specs||Canon XSi||Nikon D40|
|Sensor Format||APS-C Sensor||APS-C Sensor|
|Sensor Size||22.2 x 14.8 mm||23.7 x 15.6 mm|
|Sensor Area||328.56 mm2||369.72 mm2|
|Sensor Diagonal||26.7 mm||28.4 mm|
|Sensor Resolution||12.2 Megapixels||6 Megapixels|
|Image Resolution||4272 x 2848 pixels||3008 x 2000 pixels|
|Pixel Pitch||5.19 μm||7.85 μm|
|Pixel Density||3.70 MP/cm2||1.63 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||no Video||no Video|
|ISO Setting||100 - 1,600 ISO||200 - 1,600 ISO|
|ISO Boost||no Enhancement||200 - 3,200 ISO|
|DXO Sensor Quality (score)||61||56|
|DXO Color Depth (bits)||21.9||21.0|
|DXO Dynamic Range (EV)||10.8||11.0|
|DXO Low Light (ISO)||692||561|
|Screen Specs||Canon XSi||Nikon D40|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||95%||95%|
|LCD Framing||Live View|
|Rear LCD Size||3.0inch||2.5inch|
|LCD Resolution||230k dots||230k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Canon XSi||Nikon D40|
|Focus System||Phase-detect AF||Phase-detect AF|
|Continuous Shooting||3.5 shutter flaps/s||2.5 shutter flaps/s|
|Shutter Life Expectancy||100 000 actuations||50 000 actuations|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||SDHC cards||SDHC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||no||no|
|Connectivity Specs||Canon XSi||Nikon D40|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||no HDMI|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Canon XSi||Nikon D40|
|Battery Life (CIPA)||500 shots per charge||470 shots per charge|
129 x 98 x 62 mm
(5.1 x 3.9 x 2.4 in)
124 x 94 x 64 mm
(4.9 x 3.7 x 2.5 in)
|Camera Weight||524 g (18.5 oz)||522 g (18.4 oz)|
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