Canon 7D vs M3
The Canon EOS 7D and the Canon EOS M3 are two digital cameras that were officially introduced, respectively, in September 2009 and February 2015. The 7D is a DSLR, while the M3 is a mirrorless interchangeable lens camera. Both cameras are equipped with an APS-C sensor. The 7D has a resolution of 17.9 megapixels, whereas the M3 provides 24 MP. Read on to find out how these two cameras compare with respect to their body size, their sensors, their features, their input-output connections, and their reception by expert reviewers.
|Canon 7D||Canon M3|
|Digital single lens reflex||Mirrorless system camera|
|Canon EF mount lenses||Canon EF-M mount lenses|
|17.9 MP, APS-C Sensor||24 MP, APS-C Sensor|
|1080/30p Video||1080/30p Video|
|ISO 100-6400 (100-12800)||ISO 100-12800 (100-25600)|
|Optical viewfinder||Viewfinder optional|
|3.0" LCD, 920k dots||3.0" LCD, 1040k dots|
|Fixed screen (not touch-sensitive)||Tilting touchscreen|
|8 shutter flaps per second||4.2 shutter flaps per second|
|Weathersealed body||Not weather sealed|
|800 shots per battery charge||250 shots per battery charge|
|148 x 111 x 74 mm, 860 g||111 x 68 x 44 mm, 366 g|
Body comparison: Canon 7D vs M3
An illustration of the physical size and weight of the Canon 7D and the Canon M3 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth measures 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 M3 is considerably smaller (54 percent) than the Canon 7D. Moreover, the M3 is substantially lighter (57 percent) than the 7D. It is worth mentioning in this context that the 7D is splash and dust resistant, while the M3 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. 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 adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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 7D»||5.8 in||4.4 in||2.9 in||30.3 oz||800||Y||Sep 2009||1,699||-||Canon 7D|
|Canon M3«||4.4 in||2.7 in||1.7 in||12.9 oz||250||n||Feb 2015||679||-||Canon M3|
|Canon M50« »||4.6 in||3.5 in||2.3 in||13.8 oz||235||n||Feb 2018||779||Canon M50|
|Canon M6« »||4.4 in||2.7 in||1.8 in||13.8 oz||295||n||Feb 2017||779||Canon M6|
|Canon M5« »||4.6 in||3.5 in||2.4 in||15.1 oz||295||n||Sep 2016||979||Canon M5|
|Canon 7D II« »||5.9 in||4.4 in||3.1 in||32.1 oz||670||Y||Sep 2014||1,799||Canon 7D II|
|Canon G7 X« »||4.1 in||2.4 in||1.6 in||10.7 oz||210||n||Sep 2014||699||-||Canon G7 X|
|Canon 70D« »||5.5 in||4.1 in||3.1 in||26.6 oz||920||Y||Jul 2013||1,199||-||Canon 70D|
|Canon M« »||4.3 in||2.6 in||1.3 in||10.5 oz||230||n||Jul 2012||599||-||Canon M|
|Canon 60D« »||5.7 in||4.2 in||3.1 in||26.6 oz||1100||Y||Aug 2010||1,399||-||Canon 60D|
|Canon T2i« »||5.1 in||3.9 in||2.4 in||18.7 oz||440||n||Feb 2010||699||-||Canon T2i|
|Canon T1i« »||5.1 in||3.9 in||2.4 in||18.3 oz||400||n||Mar 2009||799||-||Canon T1i|
|Canon 5D Mark II« »||6.0 in||4.5 in||3.0 in||30.0 oz||850||Y||Sep 2008||3,499||-||Canon 5D Mark II|
|Canon 50D« »||5.7 in||4.3 in||2.9 in||29.0 oz||800||Y||Aug 2008||1,299||-||Canon 50D|
|Canon 30D« »||5.7 in||4.2 in||2.9 in||27.7 oz||750||n||Feb 2006||1,399||-||Canon 30D|
|Canon 20D« »||5.7 in||4.2 in||2.8 in||27.2 oz||700||n||Aug 2004||1,499||-||Canon 20D|
|Nikon D7000« »||5.2 in||4.1 in||3.0 in||27.5 oz||1050||Y||Sep 2010||1,499||-||Nikon D7000|
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 markedly lower price (by 60 percent) than the 7D, 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.
Sensor comparison: Canon 7D vs M3
The size of the sensor inside a digital camera is one of the key determinants of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units 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 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 and have a format factor (sometimes also referred to as "crop factor") of 1.6. Within the spectrum of camera sensors, this places the review cameras among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors.
While the two cameras under review share the same sensor size, the M3 offers a higher resolution of 24 megapixels, compared with 17.9 MP of the 7D. This megapixels advantage translates into a 16 percent gain in linear resolution. On the other hand, these sensor specs imply that the M3 has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.72μm versus 4.31μm for the 7D). However, it should be noted that the M3 is much more recent (by 5 years and 5 months) than the 7D, and its sensor will have benefitted from technological advances during this time that compensate for the smaller pixel size.
The M3 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during video recording.
The Canon EOS 7D has a native sensitivity range from ISO 100 to ISO 6400, which can be extended to ISO 100-12800. The corresponding ISO settings for the Canon EOS M3 are ISO 100 to ISO 12800, with the possibility to increase the ISO range to 100-25600..
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 M3 has a markedly higher DXO score than the 7D (overall score 6 points higher), which will translate into better image quality. The advantage is based on 0.8 bits higher color depth, 0.1 EV in additional dynamic range, and 0.5 stops in additional low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
|Canon 7D»||APS-C||17.9||5184||3456||1080/30p||22.0||11.7||854||66||Canon 7D|
|Canon M3«||APS-C||24.0||6000||4000||1080/30p||22.8||11.8||1169||72||Canon M3|
|Canon M50« »||APS-C||24.0||6000||4000||4K/24p||-||-||-||-||Canon M50|
|Canon M6« »||APS-C||24.0||6000||4000||1080/60p||-||-||-||-||Canon M6|
|Canon M5« »||APS-C||24.0||6000||4000||1080/60p||23.4||12.4||1262||77||Canon M5|
|Canon 7D II« »||APS-C||20.0||5472||3648||1080/60p||22.4||11.8||1082||70||Canon 7D II|
|Canon G7 X« »||1-inch||20.0||5472||3648||1080/60p||23.0||12.7||556||71||Canon G7 X|
|Canon 70D« »||APS-C||20.0||5472||3648||1080/30p||22.5||11.6||926||68||Canon 70D|
|Canon M« »||APS-C||17.9||5184||3456||1080/30p||22.1||11.2||827||65||Canon M|
|Canon 60D« »||APS-C||17.9||5184||3456||1080/30p||22.2||11.5||813||66||Canon 60D|
|Canon T2i« »||APS-C||17.9||5184||3456||1080/30p||22.1||11.5||784||66||Canon T2i|
|Canon T1i« »||APS-C||15.1||4752||3168||1080/20p||21.7||11.5||663||63||Canon T1i|
|Canon 5D Mark II« »||Full Frame||21.0||5616||3744||1080/30p||23.7||11.9||1815||79||Canon 5D Mark II|
|Canon 50D« »||APS-C||15.1||4752||3168||-||21.8||11.4||696||63||Canon 50D|
|Canon 30D« »||APS-C||8.2||3504||2336||-||21.5||10.8||736||59||Canon 30D|
|Canon 20D« »||APS-C||8.2||3504||2336||-||21.9||11.0||721||62||Canon 20D|
|Nikon D7000« »||APS-C||16.1||4928||3264||10800/24p||23.5||13.9||1167||80||Nikon D7000|
Many modern cameras cannot only take still pictures, but also record videos. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, and both provide the same movie specifications (1080/30p).
Feature comparison: Canon 7D vs M3
Apart from body and sensor, cameras can and do differ across a range of features. For example, the 7D 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 table below summarizes some of the other core capabilities of the Canon 7D and Canon M3 in connection with corresponding information for a sample of similar cameras.
|Canon 7D»||optical||Y||3.0||920||fixed||n||8000||8.0||Y||n||Canon 7D|
|Canon M3«||-||n||3.0||1040||tilting||Y||4000||4.2||Y||n||Canon M3|
|Canon M50« »||2360||n||3.0||1040||swivel||Y||4000||10.0||Y||n||Canon M50|
|Canon M6« »||-||n||3.0||1040||tilting||Y||4000||9.0||Y||n||Canon M6|
|Canon M5« »||2360||n||3.2||1620||tilting||Y||4000||9.0||Y||n||Canon M5|
|Canon 7D II« »||optical||Y||3.0||1040||fixed||n||8000||10.0||Y||n||Canon 7D II|
|Canon G7 X« »||-||n||3.0||1040||tilting||Y||2000||6.5||Y||Y||Canon G7 X|
|Canon 70D« »||optical||Y||3.0||1040||swivel||Y||8000||7.0||Y||n||Canon 70D|
|Canon M« »||-||n||3.0||1040||fixed||Y||4000||4.3||n||n||Canon M|
|Canon 60D« »||optical||Y||3.0||1040||swivel||n||8000||5.3||Y||n||Canon 60D|
|Canon T2i« »||optical||n||3.0||1040||fixed||n||4000||3.7||Y||n||Canon T2i|
|Canon T1i« »||optical||n||3.0||920||fixed||n||4000||3.4||Y||n||Canon T1i|
|Canon 5D Mark II« »||optical||Y||3.0||920||fixed||n||8000||3.9||n||n||Canon 5D Mark II|
|Canon 50D« »||optical||Y||3.0||920||fixed||n||8000||6.3||Y||n||Canon 50D|
|Canon 30D« »||optical||Y||2.5||230||fixed||n||8000||5.0||Y||n||Canon 30D|
|Canon 20D« »||optical||Y||1.8||118||fixed||n||8000||5.0||Y||n||Canon 20D|
|Nikon D7000« »||optical||Y||3.0||921||fixed||n||8000||6.0||Y||n||Nikon D7000|
One feature that is present on the 7D, but is missing on the M3 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 M3 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 7D does not have a selfie-screen.
The 7D writes its imaging data to Compact Flash cards, while the M3 uses SDXC cards.
Connectivity comparison: Canon 7D vs M3
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 7D and Canon EOS M3 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Canon 7D»||Y||mono||-||Y||-||mini||2.0||-||-||-||Canon 7D|
|Canon M3«||Y||stereo||mono||Y||-||mini||2.0||Y||Y||-||Canon M3|
|Canon M50« »||Y||stereo||mono||Y||-||micro||2.0||Y||Y||Y||Canon M50|
|Canon M6« »||Y||stereo||mono||Y||-||mini||2.0||Y||Y||Y||Canon M6|
|Canon M5« »||Y||stereo||mono||Y||-||mini||2.0||Y||Y||Y||Canon M5|
|Canon 7D II« »||Y||stereo||mono||Y||Y||mini||3.0||-||-||-||Canon 7D II|
|Canon G7 X« »||-||stereo||mono||-||-||micro||2.0||Y||Y||-||Canon G7 X|
|Canon 70D« »||Y||stereo||mono||Y||-||mini||2.0||Y||-||-||Canon 70D|
|Canon M« »||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Canon M|
|Canon 60D« »||Y||mono||mono||Y||-||mini||2.0||-||-||-||Canon 60D|
|Canon T2i« »||Y||stereo||-||Y||-||mini||2.0||-||-||-||Canon T2i|
|Canon T1i« »||Y||mono||mono||-||-||mini||2.0||-||-||-||Canon T1i|
|Canon 5D Mark II« »||Y||mono||mono||Y||-||mini||2.0||-||-||-||Canon 5D Mark II|
|Canon 50D« »||Y||-||-||-||-||mini||2.0||-||-||-||Canon 50D|
|Canon 30D« »||Y||-||-||-||-||-||2.0||-||-||-||Canon 30D|
|Canon 20D« »||Y||-||-||-||-||-||1.1||-||-||-||Canon 20D|
|Nikon D7000« »||Y||mono||mono||Y||-||mini||2.0||-||-||-||Nikon D7000|
It is notable that the M3 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the 7D does not offer wifi capability.
Studio photographers will appreciate that the Canon 7D (unlike the M3) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the 7D and the M3 have been discontinued, but can regularly be found used on eBay. The 7D was replaced by the Canon 7D Mark II, while the M3 was followed by the Canon M6.
Review summary: Canon 7D vs M3
So what conclusions can be drawn? Is the Canon 7D better than the Canon M3 or vice versa? The listing below highlights the relative strengths of the two models.
Advantages of the Canon EOS 7D:
- Easier framing: Has an optical viewfinder for image framing and settings control.
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- Faster shutter: Has higher mechanical shutter speed (8000/sec vs 4000/sec) to freeze action.
- Faster burst: Shoots at higher frequency (8 vs 4.2 flaps/sec) to capture the decisive moment.
- Longer lasting: Can take more shots (800 versus 250) 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.
- More heavily discounted: Has been available for much longer (launched in September 2009).
Reasons to prefer the Canon EOS M3:
- More detail: Has more megapixels (24 vs 17.9MP), which boosts linear resolution by 16%.
- Better image quality: Scores markedly higher (6 points) in the DXO overall evaluation.
- Better low-light sensitivity: Can shoot in dim conditions (0.5 stops ISO advantage).
- Better video autofocus: Features on-sensor phase-detection for more confident movie autofocus.
- More detailed LCD: Has a higher resolution rear screen (1040k vs 920k dots).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- More compact: Is smaller (111x68mm vs 148x111mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 494g or 57 percent) and is thus easier to take along.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- 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 category (60 percent cheaper at launch).
- More modern: Reflects 5 years and 5 months of technical progress since the 7D launch.
If the number of relative strengths (bullet points above) is taken as a guide, the M3 is the clear winner of the contest (15 : 8 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.
In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains incomplete and does no justice, for example, to the way the 7D or the M3 handle or perform in practice. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.
Expert reviews: Canon 7D vs M3
This is why hands-on reviews by experts are important. The following table reports the overall rankings of the cameras as published by some of the major camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). The full reviews are available by clicking on the site logo in the table header.
|Canon 7D»||HiRec||84/100||4.5/5||5/5||4.5/5||Sep 2009||1,699||-||Canon 7D|
|Canon M3«||rev||75/100||4.5/5||4.5/5||4/5||Feb 2015||679||-||Canon M3|
|Canon M50« »||Rec||79/100||-||-||3.5/5||Feb 2018||779||Canon M50|
|Canon M6« »||-||80/100||4/5||4.5/5||4/5||Feb 2017||779||Canon M6|
|Canon M5« »||Rec||82/100||4/5||4.5/5||4/5||Sep 2016||979||Canon M5|
|Canon 7D II« »||Rec||84/100||4/5||5/5||4.5/5||Sep 2014||1,799||Canon 7D II|
|Canon G7 X« »||HiRec||77/100||4.5/5||3.5/5||4.5/5||Sep 2014||699||-||Canon G7 X|
|Canon 70D« »||HiRec||83/100||4.5/5||4.5/5||5/5||Jul 2013||1,199||-||Canon 70D|
|Canon M« »||Rec||-||4/5||3.5/5||4/5||Jul 2012||599||-||Canon M|
|Canon 60D« »||Rec||79/100||4/5||5/5||4.5/5||Aug 2010||1,399||-||Canon 60D|
|Canon T2i« »||HiRec||77/100||4/5||5/5||4.5/5||Feb 2010||699||-||Canon T2i|
|Canon T1i« »||HiRec||74/100||4.5/5||5/5||4.5/5||Mar 2009||799||-||Canon T1i|
|Canon 5D Mark II« »||91/100||79/100||4/5||5/5||-||Sep 2008||3,499||-||Canon 5D Mark II|
|Canon 50D« »||HiRec||HiRec||4.5/5||5/5||4.5/5||Aug 2008||1,299||-||Canon 50D|
|Canon 30D« »||HiRec||HiRec||rev||rev||-||Feb 2006||1,399||-||Canon 30D|
|Canon 20D« »||-||HiRec||-||rev||-||Aug 2004||1,499||-||Canon 20D|
|Nikon D7000« »||-||80/100||4.5/5||5/5||4.5/5||Sep 2010||1,499||-||Nikon D7000|
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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, 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? If you would like to see a different side-by-side camera review, just use the search menu below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
- Canon 1D C vs Fujifilm GFX 50S
- Canon 300D vs Canon 100D
- Canon 40D vs Olympus E-M5 II
- Canon 5D Mark III vs Canon 1D Mark II
- Canon 70D vs Canon 5D
- Leica CL vs Nikon D3S
- Leica SL vs Sony RX100 VI
- Nikon D3500 vs YI M1
- Nikon D7000 vs Panasonic ZS100
- Panasonic FZ2000 vs Canon T7i
- Sony A7 III vs Panasonic TZ200
- Sony RX100 VI vs Leica SL
Specifications: Canon 7D vs Canon M3
|Camera Model||Canon 7D||Canon M3|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Canon EF mount lenses||Canon EF-M mount lenses|
|Launch Date||September 2009||February 2015|
|Launch Price||USD 1699||USD 679|
|Sensor Format||APS-C Sensor||APS-C Sensor|
|Sensor Size||22.3 x 14.9 mm||22.3 x 14.9 mm|
|Sensor Area||332.27 mm2||332.27 mm2|
|Sensor Diagonal||26.8 mm||26.8 mm|
|Sensor Resolution||17.9 Megapixels||24 Megapixels|
|Image Resolution||5184 x 3456 pixels||6000 x 4000 pixels|
|Pixel Pitch||4.31 μm||3.72 μm|
|Pixel Density||5.39 MP/cm2||7.22 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/30p Video||1080/30p Video|
|ISO Setting||100-6400 ISO||100-12800 ISO|
|ISO Boost||100-12800 ISO||100-25600 ISO|
|Image Processor||DIGIC 4 (Dual)||DIGIC 6|
|DXO Sensor Quality (score)||66||72|
|DXO Color Depth (bits)||22.0||22.8|
|DXO Dynamic Range (EV)||11.7||11.8|
|DXO Low Light (ISO)||854||1169|
|Viewfinder Type||Optical viewfinder||Viewfinder optional|
|Viewfinder Field of View||100%||n/a|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0 inch||3.0 inch|
|LCD Resolution||920k dots||1040k dots|
|LCD Attachment||Fixed screen||Tilting screen|
|Touch Input||no Touchscreen||Touchscreen|
|Autofocus System||Phase-detect AF||Contrast-detect AF|
|Maximum Shutter Speed||1/8000s||1/4000s|
|Continuous Shooting||8 shutter flaps/s||4.2 shutter flaps/s|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||CF cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|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||External MIC port|
|Wifi Support||no Wifi||Wifi built-in|
|Near-Field Communication||no NFC||NFC built-in|
|Environmental Sealing||Weathersealed body||Not weather sealed|
|Battery Type||LP-E6 power pack||LP-E17 power pack|
|Battery Life (CIPA)||800 shots per charge||250 shots per charge|
148 x 111 x 74 mm
(5.8 x 4.4 x 2.9 in)
111 x 68 x 44 mm
(4.4 x 2.7 x 1.7 in)
|Camera Weight||860 g (30.3 oz)||366 g (12.9 oz)|
Did you notice an error on this page? If so, please get in touch, so that we can correct the information.