Canon M3 vs Nikon D3X
The Canon EOS M3 and the Nikon D3X are two digital cameras that were announced, respectively, in February 2015 and December 2008. The M3 is a mirrorless interchangeable lens camera, while the D3X is a DSLR. The cameras are based on an APS-C (M3) and a full frame (D3X) sensor. The Canon has a resolution of 24 megapixels, whereas the Nikon provides 24.4 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 Nikon D3X? 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.
An illustration of the physical size and weight of the Canon M3 and the Nikon D3X is provided 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.
The M3 can be obtained in two different colors (black, white), while the D3X 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 Nikon D3X is considerably larger (233 percent) than the Canon M3. Moreover, the D3X is substantially heavier (244 percent) than the M3. It is noteworthy in this context that the D3X is splash and dust-proof, 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.
Concerning battery life, the M3 gets 250 shots out of its LP-E17 battery, while the D3X can take 4400 images on a single charge of its EN-EL4a power pack. As can be seen in the images above, the D3X has a battery grip built in. This facilitates image-taking in portrait orientation and gives it additional battery power.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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 M3||111 mm||68 mm||44 mm||366 g||250||n||Feb 2015||679|
|2.||Nikon D3X||160 mm||157 mm||88 mm||1260 g||4400||Y||Dec 2008||7,999|
|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 M5||116 mm||89 mm||61 mm||427 g||295||n||Sep 2016||979|
|8.||Canon M10||108 mm||67 mm||35 mm||301 g||255||n||Oct 2015||499|
|9.||Canon T6i||132 mm||101 mm||78 mm||555 g||440||n||Feb 2015||749|
|10.||Canon T6s||132 mm||101 mm||78 mm||565 g||440||n||Feb 2015||649|
|11.||Canon G7 X||103 mm||60 mm||40 mm||304 g||210||n||Sep 2014||699|
|12.||Canon M||109 mm||66 mm||32 mm||298 g||230||n||Jul 2012||599|
|13.||Nikon D5||160 mm||159 mm||92 mm||1415 g||3780||Y||Jan 2016||6,499|
|14.||Nikon D4S||160 mm||157 mm||91 mm||1350 g||3020||Y||Feb 2014||6,499|
|15.||Nikon D750||141 mm||113 mm||78 mm||750 g||1230||Y||Sep 2014||2,299|
|16.||Nikon D4||160 mm||157 mm||91 mm||1340 g||2600||Y||Jan 2012||5,999|
|17.||Nikon D3||160 mm||157 mm||88 mm||1300 g||4300||Y||Aug 2007||4,999|
|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 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 92 percent) than the D3X, 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 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 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 tend to be associated with larger, more expensive camera bodies and lenses.
Of the two cameras under consideration, the Canon M3 features an APS-C sensor and the Nikon D3X a full frame sensor. The sensor area in the D3X is 160 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 24.4MP, the D3X offers a higher resolution than the M3 (24MP), but the D3X nevertheless has larger individual pixels (pixel pitch of 5.94μm versus 3.72μm for the M3) due to its larger sensor. However, the M3 is a much more recent model (by 6 years and 2 months) than the D3X, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units.
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 Nikon D3X are ISO 100 to ISO 1600, with the possibility to increase the ISO range to 50-6400.
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 D3X offers substantially better image quality than the M3 (overall score 16 points higher). The advantage is based on 1.9 bits higher color depth, 1.9 EV in additional dynamic range, and 0.8 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.
| DXO |
|2.||Nikon D3X||Full Frame||24.4||6048||4032||none||24.7||13.7||1992||88|
|3.||Canon M50 Mark II||APS-C||24.0||6000||4000||4K/24p||..||..||..||..|
|11.||Canon G7 X||1-inch||20.0||5472||3648||1080/60p||23.0||12.7||556||71|
|13.||Nikon D5||Full Frame||20.7||5588||3712||4K/30p||25.1||12.3||2343||88|
|14.||Nikon D4S||Full Frame||16.2||4928||3280||1080/60p||24.4||13.3||3074||89|
|15.||Nikon D750||Full Frame||24.2||6016||4016||1080/60p||24.8||14.5||2956||93|
|16.||Nikon D4||Full Frame||16.2||4928||3280||1080/30p||24.7||13.1||2965||89|
|17.||Nikon D3||Full Frame||12.1||4256||2832||none||23.5||12.2||2290||81|
Many modern cameras cannot only take still pictures, but also record videos. The M3 indeed provides movie recording capabilities, while the D3X 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 D3X 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 adjacent table lists some of the other core features of the Canon M3 and Nikon D3X along with similar information for a selection of comparators.
|3.||Canon M50 Mark II||2360||n||3.0||1040||swivel||Y||1/4000s||10.0||Y||n|
|11.||Canon G7 X||none||n||3.0||1040||tilting||Y||1/2000s||6.5||Y||Y|
One difference between the cameras concerns the presence of an on-board flash. The M3 has one, while the D3X does not. While the built-in flash of the M3 is not very powerful, it can at times be useful as a fill-in light.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 D3X does not have a selfie-screen.
The Nikon D3X has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.
The M3 writes its imaging data to SDXC cards, while the D3X uses Compact Flash cards. The D3X features dual card slots, which can be very useful in case a memory card fails. In contrast, the M3 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 M3 and Nikon D3X 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|
|11.||Canon G7 X||-||stereo||mono||-||-||micro||2.0||Y||Y||-|
It is notable that the M3 offers wifi support, while the D3X does not. Wifi can be a very convenient means to transfer image data to an off-camera location.
Studio photographers will appreciate that the Nikon D3X (unlike the M3) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the M3 and the D3X have been discontinued, but can regularly be found used on eBay. The M3 was replaced by the Canon M6, while the D3X does not have a direct successor. 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 what conclusions can be drawn? Is there a clear favorite between the Canon M3 and the Nikon D3X? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.
Arguments in favor of the Canon EOS M3:
- 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 922k 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.
- More compact: Is smaller (111x68mm vs 160x157mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 894g or 71 percent) and hence easier to carry around.
- More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- 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 (92 percent cheaper at launch).
- More modern: Reflects 6 years and 2 months of technical progress since the D3X launch.
Advantages of the Nikon D3X:
- Better image quality: Scores substantially higher (16 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (1.9 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (1.9 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (0.8 stops ISO advantage).
- Easier framing: Has an optical viewfinder for image composition and settings control.
- Easier setting verification: Features a control panel on top to check shooting parameters.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (5 vs 4.2 flaps/sec) to capture the decisive moment.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
- Longer lasting: Gets more shots (4400 versus 250) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- 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 heavily discounted: Has been around for much longer (launched in December 2008).
If the count of individual advantages (bullet points above) is taken as a guide, the D3X comes out slightly ahead of the M3 (15 : 14 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 M3 and the Nikon D3X 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 D3X in practical situations. 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 M3||4/5||o||75/100||4.5/5||4/5||Feb 2015||679|
|2.||Nikon D3X||..||..||86/100||4/5||5/5||Dec 2008||7,999|
|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 M5||4/5||+||82/100||4/5||4/5||Sep 2016||979|
|8.||Canon M10||..||..||..||..||4/5||Oct 2015||499|
|9.||Canon T6i||5/5||..||75/100||4.5/5||4.5/5||Feb 2015||749|
|10.||Canon T6s||5/5||+||77/100||4.5/5||4.5/5||Feb 2015||649|
|11.||Canon G7 X||4/5||+ +||77/100||4.5/5||4.5/5||Sep 2014||699|
|12.||Canon M||3/5||+||..||4/5||4/5||Jul 2012||599|
|13.||Nikon D5||..||..||89/100||4.5/5||5/5||Jan 2016||6,499|
|14.||Nikon D4S||5/5||..||..||4.5/5||4.5/5||Feb 2014||6,499|
|15.||Nikon D750||5/5||+ +||90/100||4.5/5||4.5/5||Sep 2014||2,299|
|16.||Nikon D4||..||..||..||4.5/5||4.5/5||Jan 2012||5,999|
|17.||Nikon D3||..||..||+ +||5/5||4.5/5||Aug 2007||4,999|
|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. 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. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.
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 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 M3 vs Nikon D3X
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||Nikon D3X|
|Camera Type||Mirrorless system camera||Digital single lens reflex|
|Camera Lens||Canon EF-M mount lenses||Nikon F mount lenses|
|Launch Date||February 2015||December 2008|
|Launch Price||USD 679||USD 7,999|
|Sensor Specs||Canon M3||Nikon D3X|
|Sensor Format||APS-C Sensor||Full Frame Sensor|
|Sensor Size||22.3 x 14.9 mm||35.9 x 24.0 mm|
|Sensor Area||332.27 mm2||861.6 mm2|
|Sensor Diagonal||26.8 mm||43.2 mm|
|Sensor Resolution||24 Megapixels||24.4 Megapixels|
|Image Resolution||6000 x 4000 pixels||6048 x 4032 pixels|
|Pixel Pitch||3.72 μm||5.94 μm|
|Pixel Density||7.22 MP/cm2||2.83 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||50 - 6,400 ISO|
|Image Processor||DIGIC 6||EXPEED|
|DXO Sensor Quality (score)||72||88|
|DXO Color Depth (bits)||22.8||24.7|
|DXO Dynamic Range (EV)||11.8||13.7|
|DXO Low Light (ISO)||1169||1992|
|Screen Specs||Canon M3||Nikon D3X|
|Viewfinder Type||Viewfinder optional||Optical viewfinder|
|Viewfinder Field of View||100%|
|Top-Level Screen||no Top Display||Control Panel|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1040k dots||922k dots|
|LCD Attachment||Tilting screen||Fixed screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Canon M3||Nikon D3X|
|Focus System||On-Sensor Phase-detect||Phase-detect AF|
|Manual Focusing Aid||Focus Peaking||no Peaking Feature|
|Continuous Shooting||4.2 shutter flaps/s||5 shutter flaps/s|
|Shutter Life Expectancy||100 000 actuations||300 000 actuations|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Fill Flash||Build-in Flash||no On-Board Flash|
|Storage Medium||SDXC cards||CF cards|
|Second Storage Option||Single card slot||Dual card slots|
|Connectivity Specs||Canon M3||Nikon D3X|
|Studio Flash||no PC Sync||PC Sync socket|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||mini 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||Nikon D3X|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||250 shots per charge||4400 shots per charge|
111 x 68 x 44 mm
(4.4 x 2.7 x 1.7 in)
160 x 157 x 88 mm
(6.3 x 6.2 x 3.5 in)
|Camera Weight||366 g (12.9 oz)||1260 g (44.4 oz)|
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