Canon M3 vs Rebel
The Canon EOS M3 and the Canon EOS Digital Rebel (labelled Canon 300D in some countries) are two digital cameras that were officially introduced, respectively, in February 2015 and August 2003. The M3 is a mirrorless interchangeable lens camera, while the Rebel is a DSLR. Both cameras are equipped with an APS-C sensor. The M3 has a resolution of 24 megapixels, whereas the Rebel provides 6.3 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 M3 and the Canon EOS Digital Rebel? 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 M3 and the Canon Rebel. 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.
The M3 can be obtained in two different colors (black, white), while the Rebel is only available in silver.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon Rebel is considerably larger (86 percent) than the Canon M3. Moreover, the Rebel is substantially heavier (77 percent) than the M3. In this context, it is worth noting that neither the M3 nor the Rebel 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 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 M3||111 mm||68 mm||44 mm||366 g||250||n||Feb 2015||679|
|2.||Canon Rebel||142 mm||99 mm||72 mm||649 g||400||n||Aug 2003||899|
|3.||Canon M50 Mark II||116 mm||88 mm||59 mm||387 g||305||n||Oct 2020||599|
|4.||Canon M50||116 mm||88 mm||59 mm||390 g||235||n||Feb 2018||779|
|5.||Canon M6||112 mm||68 mm||45 mm||390 g||295||n||Feb 2017||779|
|6.||Canon M100||108 mm||67 mm||35 mm||302 g||295||n||Aug 2017||499|
|7.||Canon T7i||131 mm||100 mm||76 mm||532 g||600||n||Feb 2017||749|
|8.||Canon M5||116 mm||89 mm||61 mm||427 g||295||n||Sep 2016||979|
|9.||Canon M10||108 mm||67 mm||35 mm||301 g||255||n||Oct 2015||499|
|10.||Canon T6i||132 mm||101 mm||78 mm||555 g||440||n||Feb 2015||749|
|11.||Canon T6s||132 mm||101 mm||78 mm||565 g||440||n||Feb 2015||649|
|12.||Canon G7 X||103 mm||60 mm||40 mm||304 g||210||n||Sep 2014||699|
|13.||Canon M||109 mm||66 mm||32 mm||298 g||230||n||Jul 2012||599|
|14.||Canon XT||127 mm||94 mm||64 mm||540 g||400||n||Feb 2005||899|
|15.||Canon 20D||144 mm||106 mm||72 mm||770 g||700||n||Aug 2004||1,499|
|16.||Canon 10D||150 mm||107 mm||75 mm||850 g||500||n||Feb 2003||1,999|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will obviously take relative prices into account. 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 M3 was launched at a somewhat lower price (by 24 percent) than the Rebel, 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. 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.
Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the Rebel is 3 percent bigger. 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.
Despite having a slightly smaller sensor, the Canon M3 offers a higher resolution of 24 megapixels, compared with 6.3 MP of the Canon Rebel. 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 3.72μm versus 7.38μm for the Rebel). However, it should be noted that the M3 is much more recent (by 11 years and 5 months) than the Rebel, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.
The resolution advantage of the Canon M3 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the M3 for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Canon Rebel are 15.4 x 10.2 inches or 39 x 26 cm for good quality, 12.3 x 8.2 inches or 31.2 x 20.8 cm for very good quality, and 10.2 x 6.8 inches or 26 x 17.3 cm for excellent quality prints.
The M3 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Canon EOS M3 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 Digital Rebel 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 M3 provides substantially higher image quality than the Rebel, with an overall score that is 17 points higher. This advantage is based on 1.8 bits higher color depth, 1 EV in additional dynamic range, and 1.1 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 |
|3.||Canon M50 Mark II||APS-C||24.0||6000||4000||4K/24p||..||..||..||..|
|12.||Canon G7 X||1-inch||20.0||5472||3648||1080/60p||23.0||12.7||556||71|
Many modern cameras are not only capable of taking still images, but can also record movies. The M3 indeed provides movie recording capabilities, while the Rebel does not. The highest resolution format that the M3 can use is 1080/30p.
Apart from body and sensor, cameras can and do differ across a range of features. For example, the Rebel has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the M3 relies on live view and the rear LCD for framing. That said, the M3 can be equipped with an optional viewfinder – the EVF-DC1. The following table reports on some other key feature differences and similarities of the Canon M3, the Canon Rebel, and comparable cameras.
|3.||Canon M50 Mark II||2360||n||3.0||1040||swivel||Y||1/4000s||10.0||Y||n|
|12.||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 M3 has a touchscreen, while the Rebel has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.The M3 has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the Rebel does not have a selfie-screen.
The M3 writes its imaging data to SDXC cards, while the Rebel uses Compact Flash 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 M3 and Canon EOS Digital Rebel and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|3.||Canon M50 Mark II||Y||stereo||mono||Y||-||micro||2.0||Y||-||Y|
|12.||Canon G7 X||-||stereo||mono||-||-||micro||2.0||Y||Y||-|
It is notable that the M3 offers wifi support, while the Rebel does not. Wifi can be a very convenient means to transfer image data to an off-camera location.
Both the M3 and the Rebel have been discontinued, but can regularly be found used on eBay. The Rebel was replaced by the Canon XT, while the M3 was followed by the Canon M6. 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 the Canon M3 better than the Canon Rebel or vice versa? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Canon EOS M3:
- More detail: Offers more megapixels (24 vs 6.3MP) with a 95% higher linear resolution.
- Better image quality: Scores substantially higher (17 points) in the DXO overall assessment.
- Richer colors: Generates images with noticeably better colors (1.8 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 (1.1 stops ISO advantage).
- 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.
- Larger screen: Has a bigger rear LCD (3.0" vs 1.8") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (1040k vs 118k dots).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Faster burst: Shoots at higher frequency (4.2 vs 2.5 flaps/sec) to capture the decisive moment.
- More compact: Is smaller (111x68mm vs 142x99mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 283g or 44 percent) and hence easier to carry around.
- More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
- Faster data transfer: Supports a more advanced USB protocol (2.0 vs 1.1).
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
- More affordable: Was introduced into a lower priced segment (24 percent cheaper at launch).
- More modern: Reflects 11 years and 5 months of technical progress since the Rebel launch.
Reasons to prefer the Canon EOS Digital Rebel:
- Easier framing: Has an optical viewfinder for image composition and settings control.
- Longer lasting: Gets more shots (400 versus 250) out of a single battery charge.
- More heavily discounted: Has been around for much longer (launched in August 2003).
If the count of individual advantages (bullet points above) is taken as a guide, the M3 is the clear winner of the match-up (21 : 3 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 M3 and the Canon Rebel 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 says little about, for example, the shooting experience and imaging performance of the M3 and the Rebel in practical situations. 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 following table reports the overall ratings of the cameras as published by some of the major 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 M3||4/5||o||75/100||4.5/5||4/5||Feb 2015||679|
|2.||Canon Rebel||..||..||+ +||..||..||Aug 2003||899|
|3.||Canon M50 Mark II||..||..||..||4.5/5||3.5/5||Oct 2020||599|
|4.||Canon M50||..||+||79/100||..||3.5/5||Feb 2018||779|
|5.||Canon M6||..||..||80/100||4/5||4/5||Feb 2017||779|
|6.||Canon M100||3/5||+||..||4/5||3.5/5||Aug 2017||499|
|7.||Canon T7i||4.5/5||..||80/100||4.5/5||4/5||Feb 2017||749|
|8.||Canon M5||4/5||+||82/100||4/5||4/5||Sep 2016||979|
|9.||Canon M10||..||..||..||..||4/5||Oct 2015||499|
|10.||Canon T6i||5/5||..||75/100||4.5/5||4.5/5||Feb 2015||749|
|11.||Canon T6s||5/5||+||77/100||4.5/5||4.5/5||Feb 2015||649|
|12.||Canon G7 X||4/5||+ +||77/100||4.5/5||4.5/5||Sep 2014||699|
|13.||Canon M||3/5||+||..||4/5||4/5||Jul 2012||599|
|14.||Canon XT||..||80/100||+ +||o||..||Feb 2005||899|
|15.||Canon 20D||..||..||+ +||..||..||Aug 2004||1,499|
|16.||Canon 10D||..||..||+ +||..||..||Feb 2003||1,999|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. 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? In case you are interested in seeing how other cameras pair up, 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 M3 vs Canon Rebel
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 M3||Canon Rebel|
|Camera Type||Mirrorless system camera||Digital single lens reflex|
|Camera Lens||Canon EF-M mount lenses||Canon EF mount lenses|
|Launch Date||February 2015||August 2003|
|Launch Price||USD 679||USD 899|
|Sensor Specs||Canon M3||Canon Rebel|
|Sensor Format||APS-C Sensor||APS-C Sensor|
|Sensor Size||22.3 x 14.9 mm||22.7 x 15.1 mm|
|Sensor Area||332.27 mm2||342.77 mm2|
|Sensor Diagonal||26.8 mm||27.3 mm|
|Sensor Resolution||24 Megapixels||6.3 Megapixels|
|Image Resolution||6000 x 4000 pixels||3072 x 2048 pixels|
|Pixel Pitch||3.72 μm||7.38 μm|
|Pixel Density||7.22 MP/cm2||1.84 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|
|DXO Sensor Quality (score)||72||55|
|DXO Color Depth (bits)||22.8||21.0|
|DXO Dynamic Range (EV)||11.8||10.8|
|DXO Low Light (ISO)||1169||544|
|Screen Specs||Canon M3||Canon Rebel|
|Viewfinder Type||Viewfinder optional||Optical viewfinder|
|Viewfinder Field of View||95%|
|LCD Framing||Live View|
|Rear LCD Size||3.0inch||1.8inch|
|LCD Resolution||1040k dots||118k dots|
|LCD Attachment||Tilting screen||Fixed screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Canon M3||Canon Rebel|
|Focus System||On-Sensor Phase-detect||Phase-detect AF|
|Manual Focusing Aid||Focus Peaking||no Peaking Feature|
|Continuous Shooting||4.2 shutter flaps/s||2.5 shutter flaps/s|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||SDXC cards||CF cards|
|Second Storage Option||Single card slot||Single card slot|
|Connectivity Specs||Canon M3||Canon Rebel|
|USB Connector||USB 2.0||USB 1.1|
|HDMI Port||mini HDMI||no HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Wifi Support||Wifi built-in||no Wifi|
|Near-Field Communication||NFC built-in||no NFC|
|Body Specs||Canon M3||Canon Rebel|
|Battery Life (CIPA)||250 shots per charge||400 shots per charge|
111 x 68 x 44 mm
(4.4 x 2.7 x 1.7 in)
142 x 99 x 72 mm
(5.6 x 3.9 x 2.8 in)
|Camera Weight||366 g (12.9 oz)||649 g (22.9 oz)|
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