Canon 1D X vs XSi
The Canon EOS-1D X and the Canon EOS Rebel XSi (labelled Canon 450D in some countries) are two digital cameras that were revealed to the public, respectively, in October 2011 and January 2008. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (1DX) and an APS-C (XSi) sensor. The 1DX has a resolution of 17.9 megapixels, whereas the XSi 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-1D X and the Canon EOS Rebel XSi? 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 physical size and weight of the Canon 1D X and the Canon XSi are illustrated 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 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 Canon XSi is considerably smaller (52 percent) than the Canon 1D X. Moreover, the XSi is substantially lighter (66 percent) than the 1DX. It is worth mentioning in this context that the 1DX is splash and dust resistant, while the XSi 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 (as in the 1DX) will tend to go along with bigger and heavier lenses, while more compact options are available for the smaller-sensor camera (XSi). You can compare the optics available in the Canon EF Lens Catalog.
Concerning battery life, the 1DX gets 1120 shots out of its LP-E4N battery, while the XSi can take 500 images on a single charge of its LP-E5 power pack. As can be seen in the images above, the 1DX 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 XSi, Canon provides the BG-E5 vertical grip as an optional accessory (see here on eBay).
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.||Canon 1D X||158 mm||168 mm||83 mm||1551 g||1120||Y||Oct 2011||6,799|
|2.||Canon XSi||129 mm||98 mm||62 mm||524 g||500||n||Jan 2008||799|
|3.||Canon 1D X Mark III||158 mm||168 mm||83 mm||1440 g||2850||Y||Jan 2020||6,499|
|4.||Canon 1D X Mark II||158 mm||168 mm||83 mm||1530 g||1210||Y||Feb 2016||5,999|
|5.||Canon 1D C||158 mm||164 mm||83 mm||1545 g||1120||Y||Apr 2012||14,999|
|6.||Canon 5D Mark III||152 mm||116 mm||76 mm||950 g||950||Y||Mar 2012||3,499|
|7.||Canon 6D||145 mm||111 mm||71 mm||770 g||1090||Y||Sep 2012||2,099|
|8.||Canon T4i||133 mm||100 mm||79 mm||575 g||440||n||Jun 2012||849|
|9.||Canon T3||130 mm||100 mm||78 mm||495 g||700||n||Feb 2011||449|
|10.||Canon T1i||129 mm||98 mm||62 mm||520 g||400||n||Mar 2009||799|
|11.||Canon 5D Mark II||152 mm||114 mm||75 mm||850 g||850||Y||Sep 2008||3,499|
|12.||Canon 1Ds Mark III||150 mm||160 mm||80 mm||1385 g||1800||Y||Aug 2007||7,999|
|13.||Canon 40D||146 mm||108 mm||74 mm||822 g||750||n||Aug 2007||1,299|
|14.||Canon XTi||127 mm||84 mm||65 mm||556 g||370||n||Aug 2006||799|
|15.||Canon 1Ds Mark II||156 mm||158 mm||80 mm||1215 g||1200||Y||Sep 2004||7,999|
|16.||Nikon D5||160 mm||159 mm||92 mm||1415 g||3780||Y||Jan 2016||6,499|
|17.||Nikon D4||160 mm||157 mm||91 mm||1340 g||2600||Y||Jan 2012||5,999|
|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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The XSi was launched at a markedly lower price (by 88 percent) than the 1DX, 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 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. 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 tend to be associated with larger, more expensive camera bodies and lenses.
Of the two cameras under consideration, the Canon 1D X features a full frame sensor and the Canon XSi an APS-C sensor. The sensor area in the XSi is 62 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 1.6. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 17.9MP, the 1DX offers a higher resolution than the XSi (12.2MP), but the 1DX nevertheless has larger individual pixels (pixel pitch of 6.95μm versus 5.19μm for the XSi) due to its larger sensor. Moreover, the 1DX is a much more recent model (by 3 years and 8 months) than the XSi, 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 1D X implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 1DX for good quality output (200 dots per inch) amounts to 25.9 x 17.3 inches or 65.8 x 43.9 cm, for very good quality (250 dpi) 20.7 x 13.8 inches or 52.7 x 35.1 cm, and for excellent quality (300 dpi) 17.3 x 11.5 inches or 43.9 x 29.3 cm. The corresponding values for the Canon XSi are 21.4 x 14.2 inches or 54.3 x 36.2 cm for good quality, 17.1 x 11.4 inches or 43.4 x 28.9 cm for very good quality, and 14.2 x 9.5 inches or 36.2 x 24.1 cm for excellent quality prints.
The Canon EOS-1D X has a native sensitivity range from ISO 100 to ISO 51200, which can be extended to ISO 50-204800. The corresponding ISO settings for the Canon EOS Rebel XSi are ISO 100 to ISO 1600 (no boost).
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 1DX provides substantially higher image quality than the XSi, with an overall score that is 21 points higher. This advantage is based on 1.9 bits higher color depth, 1 EV in additional dynamic range, and 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.
| DXO |
|1.||Canon 1D X||Full Frame||17.9||5184||3456||1080/30p||23.8||11.8||2786||82|
|3.||Canon 1D X Mark III||Full Frame||20.0||5472||3648||4K/60p||24.2||14.5||3248||91|
|4.||Canon 1D X Mark II||Full Frame||20.0||5472||3648||4K/60p||24.1||13.5||3207||88|
|5.||Canon 1D C||Full Frame||17.9||5184||3456||4K/24p||..||..||..||..|
|6.||Canon 5D Mark III||Full Frame||22.1||5760||3840||1080/30p||24.0||11.7||2293||81|
|7.||Canon 6D||Full Frame||20.0||5472||3648||1080/30p||23.8||12.1||2340||82|
|11.||Canon 5D Mark II||Full Frame||21.0||5616||3744||1080/30p||23.7||11.9||1815||79|
|12.||Canon 1Ds Mark III||Full Frame||21.0||5616||3744||none||24.0||12.0||1663||80|
|15.||Canon 1Ds Mark II||Full Frame||16.6||4992||3328||none||23.3||11.3||1480||74|
|16.||Nikon D5||Full Frame||20.7||5588||3712||4K/30p||25.1||12.3||2343||88|
|17.||Nikon D4||Full Frame||16.2||4928||3280||1080/30p||24.7||13.1||2965||89|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. The 1DX indeed provides movie recording capabilities, while the XSi does not. The highest resolution format that the 1DX can use is 1080/30p.
Beyond body and sensor, cameras can and do differ across a range of features. The 1DX and the XSi 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 1DX offers a wider field of view (100%) than the one in the XSi (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the 1DX has a higher magnification (0.76x vs 0.54x), 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 1D X, the Canon XSi, and comparable cameras.
|1.||Canon 1D X||optical||Y||3.2||1040||fixed||n||1/8000s||14.0||n||n|
|3.||Canon 1D X Mark III||optical||Y||3.2||2100||fixed||Y||1/8000s||20.0||n||n|
|4.||Canon 1D X Mark II||optical||Y||3.2||1620||fixed||Y||1/8000s||16.0||n||n|
|5.||Canon 1D C||optical||Y||3.2||1040||fixed||n||1/8000s||14.0||n||n|
|6.||Canon 5D Mark III||optical||Y||3.2||1040||fixed||n||1/8000s||6.0||n||n|
|11.||Canon 5D Mark II||optical||Y||3.0||920||fixed||n||1/8000s||3.9||n||n|
|12.||Canon 1Ds Mark III||optical||Y||3.0||230||fixed||n||1/8000s||5.0||n||n|
|15.||Canon 1Ds Mark II||optical||Y||2.0||230||fixed||n||1/8000s||4.0||n||n|
One feature that is present on the 1DX, but is missing on the XSi 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 1DX writes its imaging data to Compact Flash cards, while the XSi uses SDHC cards. The 1DX features dual card slots, which can be very useful in case a memory card fails. In contrast, the XSi only has one slot.
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-1D X and Canon EOS Rebel XSi and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|1.||Canon 1D X||Y||mono||-||Y||-||mini||2.0||-||-||-|
|3.||Canon 1D X Mark III||Y||mono||mono||Y||Y||mini||3.1||Y||-||Y|
|4.||Canon 1D X Mark II||Y||mono||mono||Y||Y||mini||3.0||-||-||-|
|5.||Canon 1D C||Y||mono||mono||Y||Y||mini||2.0||-||-||-|
|6.||Canon 5D Mark III||Y||mono||mono||Y||Y||mini||2.0||-||-||-|
|11.||Canon 5D Mark II||Y||mono||mono||Y||-||mini||2.0||-||-||-|
|12.||Canon 1Ds Mark III||Y||mono||-||-||-||-||2.0||-||-||-|
|15.||Canon 1Ds Mark II||Y||-||-||-||-||-||2.0||-||-||-|
Studio photographers will appreciate that the Canon 1D X (unlike the XSi) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the 1DX and the XSi have been discontinued, but can regularly be found used on eBay. The XSi was replaced by the Canon T1i, while the 1DX was followed by the Canon 1DX 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 website.
So how do things add up? Which of the two cameras – the Canon 1D X or the Canon XSi – 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 Canon EOS-1D X:
- More detail: Offers more megapixels (17.9 vs 12.2MP) with a 21% higher linear resolution.
- Better image quality: Scores substantially higher (21 points) in the DXO overall assessment.
- Richer colors: Generates images with noticeably better colors (1.9 bits more color depth).
- More dynamic range: Captures a larger spectrum of light and dark details (1 EV of extra DR).
- Better low-light sensitivity: Requires less light for good images (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 (100% vs 95%).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.76x vs 0.54x).
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (1040k vs 230k dots).
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (14 vs 3.5 flaps/sec) to capture the decisive moment.
- More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
- Longer lasting: Can take more shots (1120 versus 500) on a single battery charge.
- Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- More modern: Reflects 3 years and 8 months of technical progress since the XSi launch.
Reasons to prefer the Canon EOS Rebel XSi:
- More compact: Is smaller (129x98mm vs 158x168mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 1027g or 66 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 (88 percent cheaper at launch).
- More heavily discounted: Has been around for much longer (launched in January 2008).
If the count of individual advantages (bullet points above) is taken as a guide, the 1DX is the clear winner of the match-up (19 : 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 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 Canon 1D X and the Canon XSi 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the 1DX or the XSi. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.
This is where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular camera 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.||Canon 1D X||5/5||..||..||4.5/5||4.5/5||Oct 2011||6,799|
|2.||Canon XSi||..||+ +||+ +||4/5||4.5/5||Jan 2008||799|
|3.||Canon 1D X Mark III||..||+ +||..||4.5/5||4/5||Jan 2020||6,499|
|4.||Canon 1D X Mark II||..||..||89/100||4.5/5||4.5/5||Feb 2016||5,999|
|5.||Canon 1D C||..||..||..||..||..||Apr 2012||14,999|
|6.||Canon 5D Mark III||..||+ +||82/100||4.5/5||4.5/5||Mar 2012||3,499|
|7.||Canon 6D||5/5||+ +||83/100||4.5/5||4.5/5||Sep 2012||2,099|
|8.||Canon T4i||4/5||+ +||77/100||4.5/5||4.5/5||Jun 2012||849|
|9.||Canon T3||..||80/100||69/100||4/5||4.5/5||Feb 2011||449|
|10.||Canon T1i||..||+ +||74/100||4.5/5||4.5/5||Mar 2009||799|
|11.||Canon 5D Mark II||4/5||91/100||79/100||4/5||..||Sep 2008||3,499|
|12.||Canon 1Ds Mark III||..||..||+ +||4.5/5||..||Aug 2007||7,999|
|13.||Canon 40D||..||+ +||+ +||4.5/5||4.5/5||Aug 2007||1,299|
|14.||Canon XTi||..||+ +||+ +||o||4/5||Aug 2006||799|
|15.||Canon 1Ds Mark II||..||..||+ +||..||..||Sep 2004||7,999|
|16.||Nikon D5||..||..||89/100||4.5/5||5/5||Jan 2016||6,499|
|17.||Nikon D4||..||..||..||4.5/5||4.5/5||Jan 2012||5,999|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. 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 make your choice using the following search menu. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
Specifications: Canon 1D X vs Canon XSi
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 1D X||Canon XSi|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Canon EF mount lenses|
|Launch Date||October 2011||January 2008|
|Launch Price||USD 6,799||USD 799|
|Sensor Specs||Canon 1D X||Canon XSi|
|Sensor Format||Full Frame Sensor||APS-C Sensor|
|Sensor Size||36.0 x 24.0 mm||22.2 x 14.8 mm|
|Sensor Area||864 mm2||328.56 mm2|
|Sensor Diagonal||43.3 mm||26.7 mm|
|Sensor Resolution||17.9 Megapixels||12.2 Megapixels|
|Image Resolution||5184 x 3456 pixels||4272 x 2848 pixels|
|Pixel Pitch||6.95 μm||5.19 μm|
|Pixel Density||2.07 MP/cm2||3.70 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/30p Video||no Video|
|ISO Setting||100 - 51,200 ISO||100 - 1,600 ISO|
|ISO Boost||50 - 204,800 ISO||no Enhancement|
|Image Processor||DIGIC 5+ (Dual)||DIGIC 3|
|DXO Sensor Quality (score)||82||61|
|DXO Color Depth (bits)||23.8||21.9|
|DXO Dynamic Range (EV)||11.8||10.8|
|DXO Low Light (ISO)||2786||692|
|Screen Specs||Canon 1D X||Canon XSi|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||100%||95%|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.2inch||3.0inch|
|LCD Resolution||1040k dots||230k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Canon 1D X||Canon XSi|
|Focus System||Phase-detect AF||Phase-detect AF|
|Continuous Shooting||14 shutter flaps/s||3.5 shutter flaps/s|
|Shutter Life Expectancy||400 000 actuations||100 000 actuations|
|Fill Flash||no On-Board Flash||Build-in Flash|
|Storage Medium||CF cards||SDHC cards|
|Second Storage Option||Dual card slots||Single card slot|
|Connectivity Specs||Canon 1D X||Canon XSi|
|Studio Flash||PC Sync socket||no PC Sync|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||mini HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Canon 1D X||Canon XSi|
|Environmental Sealing||Weathersealed body||not weather sealed|
|Battery Life (CIPA)||1120 shots per charge||500 shots per charge|
158 x 168 x 83 mm
(6.2 x 6.6 x 3.3 in)
129 x 98 x 62 mm
(5.1 x 3.9 x 2.4 in)
|Camera Weight||1551 g (54.7 oz)||524 g (18.5 oz)|
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