Canon M vs XSi
The Canon EOS M and the Canon EOS Rebel XSi (labelled Canon 450D in some countries) are two digital cameras that were officially introduced, respectively, in July 2012 and January 2008. The Canon M is a mirrorless interchangeable lens camera, while the XSi is a DSLR. Both cameras are equipped with an APS-C sensor. The Canon M 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 M 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 M 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 measures are rounded to the nearest millimeter.
The Canon M can be obtained in two different colors (black, white), while the XSi 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 Canon XSi is considerably larger (76 percent) than the Canon M. Moreover, the XSi is substantially heavier (76 percent) than the Canon M. In this context, it is worth noting that neither the Canon M nor the XSi 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. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.
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 M||109 mm||66 mm||32 mm||298 g||230||n||Jul 2012||599|
|2.||Canon XSi||129 mm||98 mm||62 mm||524 g||500||n||Jan 2008||799|
|3.||Canon M100||108 mm||67 mm||35 mm||302 g||295||n||Aug 2017||499|
|4.||Canon M10||108 mm||67 mm||35 mm||301 g||255||n||Oct 2015||499|
|5.||Canon G7 X||103 mm||60 mm||40 mm||304 g||210||n||Sep 2014||699|
|6.||Canon 100D||117 mm||91 mm||69 mm||407 g||380||n||Mar 2013||549|
|7.||Canon 700D||133 mm||100 mm||79 mm||580 g||440||n||Mar 2013||649|
|8.||Canon G16||109 mm||76 mm||40 mm||356 g||360||n||Aug 2013||549|
|9.||Canon T4i||133 mm||100 mm||79 mm||575 g||440||n||Jun 2012||849|
|10.||Canon T3||130 mm||100 mm||78 mm||495 g||700||n||Feb 2011||449|
|11.||Canon T1i||129 mm||98 mm||62 mm||520 g||400||n||Mar 2009||799|
|12.||Canon 40D||146 mm||108 mm||74 mm||822 g||750||n||Aug 2007||1,299|
|13.||Canon XTi||127 mm||84 mm||65 mm||556 g||370||n||Aug 2006||799|
|14.||Panasonic GF6||111 mm||65 mm||38 mm||323 g||340||n||Apr 2013||499|
|15.||Panasonic G3||115 mm||84 mm||47 mm||336 g||270||n||May 2011||599|
|16.||Sony NEX-3N||110 mm||62 mm||35 mm||269 g||480||n||Feb 2013||499|
|17.||Sony NEX-F3||117 mm||67 mm||42 mm||314 g||470||n||May 2012||599|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will naturally be influenced heavily by the price. 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 Canon M was launched at a somewhat lower price (by 25 percent) than the XSi, which makes it more attractive for photographers on a tight budget. 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. 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 XSi is 1 percent smaller. They nevertheless have the same format factor of 1.6. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
In terms of chip-set technology, the Canon M uses a more advanced image processing engine (DIGIC V) than the XSi (DIGIC 3), with benefits for noise reduction, color accuracy, and processing speed.
With 17.9MP, the Canon M offers a higher resolution than the XSi (12.2MP), but the Canon M has smaller individual pixels (pixel pitch of 4.31μm versus 5.19μm for the XSi). However, the Canon M is a much more recent model (by 4 years and 5 months) than the XSi, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels.
The resolution advantage of the Canon M implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the Canon M 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 M has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Canon EOS M has a native sensitivity range from ISO 100 to ISO 12800, which can be extended to ISO 100-25600. 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 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 Canon M has a notably higher overall DXO score than the XSi (overall score 4 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 0.2 bits higher color depth, 0.4 EV in additional dynamic range, and 0.3 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
| DXO |
|5.||Canon G7 X||1-inch||20.0||5472||3648||1080/60p||23.0||12.7||556||71|
|14.||Panasonic GF6||Four Thirds||15.8||4592||3448||1080/60i||20.7||10.6||622||54|
|15.||Panasonic G3||Four Thirds||15.8||4592||3448||1080/60i||21.0||10.6||667||56|
Many modern cameras are not only capable of taking still images, but can also record movies. The Canon M indeed provides movie recording capabilities, while the XSi does not. The highest resolution format that the Canon M can use is 1080/30p.
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the XSi has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the Canon M relies on live view and the rear LCD for framing. The table below summarizes some of the other core capabilities of the Canon M and Canon XSi in connection with corresponding information for a sample of similar cameras.
|5.||Canon G7 X||none||n||3.0||1040||tilting||Y||1/2000s||6.5||Y||Y|
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The Canon M has a touchscreen, while the XSi has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.
The Canon M writes its imaging data to SDXC cards, while the XSi uses SDHC cards. The Canon M supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the XSi 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 M and Canon EOS Rebel XSi and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|5.||Canon G7 X||-||stereo||mono||-||-||micro||2.0||Y||Y||-|
Both the Canon M and the XSi have been discontinued, but can regularly be found used on eBay. The XSi was replaced by the Canon T1i, while the Canon M was followed by the Canon EOS M3. 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? Is there a clear favorite between the Canon M and the Canon XSi? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.
Advantages of the Canon EOS M:
- More detail: Offers more megapixels (17.9 vs 12.2MP) with a 21% higher linear resolution.
- Better image quality: Scores markedly higher (4 points) in the DXO overall assessment.
- Better jpgs: Has a more modern image processing engine (DIGIC V vs DIGIC 3).
- Broader imaging potential: Can record not only still images but also 1080/30p movies.
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- More detailed LCD: Has a higher resolution rear screen (1040k vs 230k dots).
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- Faster burst: Shoots at higher frequency (4.3 vs 3.5 flaps/sec) to capture the decisive moment.
- More compact: Is smaller (109x66mm vs 129x98mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 226g or 43 percent) and hence easier to carry around.
- More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
- Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
- More affordable: Was introduced into a lower priced segment (25 percent cheaper at launch).
- More modern: Reflects 4 years and 5 months of technical progress since the XSi launch.
Reasons to prefer the Canon EOS Rebel XSi:
- Easier framing: Has an optical viewfinder for image composition and settings control.
- Longer lasting: Gets more shots (500 versus 230) out of a single battery charge.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- 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 Canon M is the clear winner of the match-up (14 : 4 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision 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 M and the Canon XSi place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR Camera listings 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 Canon M or the XSi perform in practice. 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 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], 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 M||3/5||+||..||4/5||4/5||Jul 2012||599|
|2.||Canon XSi||..||+ +||+ +||4/5||4.5/5||Jan 2008||799|
|3.||Canon M100||3/5||+||..||4/5||3.5/5||Aug 2017||499|
|4.||Canon M10||..||..||..||..||4/5||Oct 2015||499|
|5.||Canon G7 X||4/5||+ +||77/100||4.5/5||4.5/5||Sep 2014||699|
|6.||Canon 100D||4/5||+||78/100||4/5||4/5||Mar 2013||549|
|7.||Canon 700D||..||..||76/100||4.5/5||4.5/5||Mar 2013||649|
|8.||Canon G16||4/5||+||..||4.5/5||4.5/5||Aug 2013||549|
|9.||Canon T4i||4/5||+ +||77/100||4.5/5||4.5/5||Jun 2012||849|
|10.||Canon T3||..||80/100||69/100||4/5||4.5/5||Feb 2011||449|
|11.||Canon T1i||..||+ +||74/100||4.5/5||4.5/5||Mar 2009||799|
|12.||Canon 40D||..||+ +||+ +||4.5/5||4.5/5||Aug 2007||1,299|
|13.||Canon XTi||..||+ +||+ +||o||4/5||Aug 2006||799|
|14.||Panasonic GF6||..||+ +||..||4.5/5||4.5/5||Apr 2013||499|
|15.||Panasonic G3||3/5||+ +||75/100||4.5/5||5/5||May 2011||599|
|16.||Sony NEX-3N||3/5||..||..||4.5/5||4.5/5||Feb 2013||499|
|17.||Sony NEX-F3||4/5||..||74/100||4.5/5||4.5/5||May 2012||599|
|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 comparing ratings of very distinct cameras or ones that are far apart in terms of their release date 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. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
Specifications: Canon M 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 M||Canon XSi|
|Camera Type||Mirrorless system camera||Digital single lens reflex|
|Camera Lens||Canon EF-M mount lenses||Canon EF mount lenses|
|Launch Date||July 2012||January 2008|
|Launch Price||USD 599||USD 799|
|Sensor Specs||Canon M||Canon XSi|
|Sensor Format||APS-C Sensor||APS-C Sensor|
|Sensor Size||22.3 x 14.9 mm||22.2 x 14.8 mm|
|Sensor Area||332.27 mm2||328.56 mm2|
|Sensor Diagonal||26.8 mm||26.7 mm|
|Sensor Resolution||17.9 Megapixels||12.2 Megapixels|
|Image Resolution||5184 x 3456 pixels||4272 x 2848 pixels|
|Pixel Pitch||4.31 μm||5.19 μm|
|Pixel Density||5.39 MP/cm2||3.70 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/30p Video||no Video|
|ISO Setting||100 - 12,800 ISO||100 - 1,600 ISO|
|ISO Boost||100 - 25,600 ISO||no Enhancement|
|Image Processor||DIGIC V||DIGIC 3|
|DXO Sensor Quality (score)||65||61|
|DXO Color Depth (bits)||22.1||21.9|
|DXO Dynamic Range (EV)||11.2||10.8|
|DXO Low Light (ISO)||827||692|
|Screen Specs||Canon M||Canon XSi|
|Viewfinder Type||no viewfinder||Optical viewfinder|
|Viewfinder Field of View||95%|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1040k dots||230k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Canon M||Canon XSi|
|Focus System||On-Sensor Phase-detect||Phase-detect AF|
|Continuous Shooting||4.3 shutter flaps/s||3.5 shutter flaps/s|
|Shutter Life Expectancy||100 000 actuations||100 000 actuations|
|Fill Flash||no On-Board Flash||Build-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 M||Canon XSi|
|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 M||Canon XSi|
|Battery Life (CIPA)||230 shots per charge||500 shots per charge|
109 x 66 x 32 mm
(4.3 x 2.6 x 1.3 in)
129 x 98 x 62 mm
(5.1 x 3.9 x 2.4 in)
|Camera Weight||298 g (10.5 oz)||524 g (18.5 oz)|
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