Canon 100D vs 1DX Mark III
The Canon EOS 100D (called Canon SL1 in some regions) and the Canon EOS-1D X Mark III are two digital cameras that were revealed to the public, respectively, in March 2013 and January 2020. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (100D) and a full frame (1DX Mark III) sensor. The 100D has a resolution of 17.9 megapixels, whereas the 1DX Mark III provides 20 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 100D and the Canon EOS-1D X Mark III? 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 100D and the Canon 1D X Mark III are illustrated 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.
The 100D can be obtained in two different colors (black, white), while the 1DX Mark III 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 1D X Mark III is considerably larger (149 percent) than the Canon 100D. Moreover, the 1DX Mark III is substantially heavier (254 percent) than the 100D. It is noteworthy in this context that the 1DX Mark III is splash and dust-proof, while the 100D 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 Mark III) will tend to go along with bigger and heavier lenses, while more compact options are available for the smaller-sensor camera (100D). You can compare the optics available in the Canon EF Lens Catalog.
Concerning battery life, the 100D gets 380 shots out of its LP-E12 battery, while the 1DX Mark III can take 2850 images on a single charge of its LP-E19 power pack. As can be seen in the images above, the 1DX Mark III 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 100D, there are third party battery grips available as optional accessories (see here on eBay).
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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.
|Canon 100D||117 mm||91 mm||69 mm||407 g||380||n||Mar 2013||549|
|Canon 1D X Mark III||158 mm||168 mm||83 mm||1440 g||2850||Y||Jan 2020||6,499|
|Canon 4000D||129 mm||102 mm||77 mm||436 g||500||n||Feb 2018||399|
|Canon 200D||122 mm||93 mm||70 mm||453 g||650||n||Jun 2017||549|
|Canon 1D X Mark II||158 mm||168 mm||83 mm||1530 g||1210||Y||Feb 2016||5,999|
|Canon 7D II||149 mm||112 mm||78 mm||910 g||670||Y||Sep 2014||1,799|
|Canon 1200D||130 mm||100 mm||78 mm||480 g||500||n||Feb 2014||449|
|Canon 700D||133 mm||100 mm||79 mm||580 g||440||n||Mar 2013||649|
|Canon G16||109 mm||76 mm||40 mm||356 g||360||n||Aug 2013||549|
|Canon 1D C||158 mm||164 mm||83 mm||1545 g||1120||Y||Apr 2012||14,999|
|Canon 5D Mark III||152 mm||116 mm||76 mm||950 g||950||Y||Mar 2012||3,499|
|Canon 650D||133 mm||100 mm||79 mm||575 g||440||n||Jun 2012||849|
|Canon M||109 mm||66 mm||32 mm||298 g||230||n||Jul 2012||599|
|Canon 1D X||158 mm||168 mm||83 mm||1551 g||1120||Y||Oct 2011||6,799|
|Canon 600D||133 mm||100 mm||80 mm||570 g||440||n||Feb 2011||599|
|Canon 5D Mark II||152 mm||114 mm||75 mm||850 g||850||Y||Sep 2008||3,499|
|Panasonic G6||122 mm||85 mm||71 mm||390 g||340||n||Apr 2013||599|
|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 100D was launched at a markedly lower price (by 92 percent) than the 1DX Mark III, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon 100D features an APS-C sensor and the Canon 1D X Mark III a full frame sensor. The sensor area in the 1DX Mark III 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.
Technology-wise, the 1DX Mark III uses a more advanced image processing engine (DIGIC X) than the 100D (DIGIC 5), with benefits for noise reduction, color accuracy, and processing speed.
With 20MP, the 1DX Mark III offers a higher resolution than the 100D (17.9MP), but the 1DX Mark III nevertheless has larger individual pixels (pixel pitch of 6.57μm versus 4.31μm for the 100D) due to its larger sensor. Moreover, the 1DX Mark III is a much more recent model (by 6 years and 9 months) than the 100D, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units.
The resolution advantage of the Canon 1D X Mark III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 1DX Mark III for good quality output (200 dots per inch) amounts to 27.4 x 18.2 inches or 69.5 x 46.3 cm, for very good quality (250 dpi) 21.9 x 14.6 inches or 55.6 x 37.1 cm, and for excellent quality (300 dpi) 18.2 x 12.2 inches or 46.3 x 30.9 cm. The corresponding values for the Canon 100D are 25.9 x 17.3 inches or 65.8 x 43.9 cm for good quality, 20.7 x 13.8 inches or 52.7 x 35.1 cm for very good quality, and 17.3 x 11.5 inches or 43.9 x 29.3 cm for excellent quality prints.
The Canon EOS 100D 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-1D X Mark III are ISO 100 to ISO 102400, with the possibility to increase the ISO range to 50-819200.
For many cameras, data on sensor performance has been reported by DXO Mark. 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 consideration, the 1DX Mark III offers substantially better image quality than the 100D (overall score 28 points higher). The advantage is based on 2.4 bits higher color depth, 3.2 EV in additional dynamic range, and 1.9 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 |
|Canon 1D X Mark III||Full Frame||20.0||5472||3648||4K/60p||24.2||14.5||3248||91|
|Canon 1D X Mark II||Full Frame||20.0||5472||3648||4K/60p||24.1||13.5||3207||88|
|Canon 7D II||APS-C||20.0||5472||3648||1080/60p||22.4||11.8||1082||70|
|Canon 1D C||Full Frame||17.9||5184||3456||4K/24p||..||..||..||..|
|Canon 5D Mark III||Full Frame||22.1||5760||3840||1080/30p||24.0||11.7||2293||81|
|Canon 1D X||Full Frame||17.9||5184||3456||1080/30p||23.8||11.8||2786||82|
|Canon 5D Mark II||Full Frame||21.0||5616||3744||1080/30p||23.7||11.9||1815||79|
|Panasonic G6||Four Thirds||15.9||4608||3456||1080/60p||21.3||11.5||639||61|
Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the 1DX Mark III provides a better video resolution than the 100D. It can shoot movie footage at 4K/60p, while the 100D is limited to 1080/30p.
Apart from body and sensor, cameras can and do differ across a variety of features. The 100D and the 1DX Mark III 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 Mark III offers a wider field of view (100%) than the one in the 100D (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the 1DX Mark III 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 table below summarizes some of the other core capabilities of the Canon 100D and Canon 1D X Mark III in connection with corresponding information for a sample of similar cameras.
|Canon 1D X Mark III||optical||Y||3.2||2100||fixed||Y||1/8000s||20.0||n||n|
|Canon 1D X Mark II||optical||Y||3.2||1620||fixed||Y||1/8000s||16.0||n||n|
|Canon 7D II||optical||Y||3.0||1040||fixed||n||1/8000s||10.0||Y||n|
|Canon 1D C||optical||Y||3.2||1040||fixed||n||1/8000s||14.0||n||n|
|Canon 5D Mark III||optical||Y||3.2||1040||fixed||n||1/8000s||6.0||n||n|
|Canon 1D X||optical||Y||3.2||1040||fixed||n||1/8000s||14.0||n||n|
|Canon 5D Mark II||optical||Y||3.0||920||fixed||n||1/8000s||3.9||n||n|
One difference between the cameras concerns the presence of an on-board flash. The 100D has one, while the 1DX Mark III does not. While the built-in flash of the 100D is not very powerful, it can at times be useful as a fill-in light.
The Canon 1D X Mark III 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 100D writes its imaging data to SDXC cards, while the 1DX Mark III uses CFexpress cards. The 1DX Mark III features dual card slots, which can be very useful in case a memory card fails. In contrast, the 100D 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 100D and Canon EOS-1D X Mark III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|Canon 1D X Mark III||Y||mono||mono||Y||Y||mini||3.1||Y||-||Y|
|Canon 1D X Mark II||Y||mono||mono||Y||Y||mini||3.0||-||-||-|
|Canon 7D II||Y||stereo||mono||Y||Y||mini||3.0||-||-||-|
|Canon 1D C||Y||mono||mono||Y||Y||mini||2.0||-||-||-|
|Canon 5D Mark III||Y||mono||mono||Y||Y||mini||2.0||-||-||-|
|Canon 1D X||Y||mono||-||Y||-||mini||2.0||-||-||-|
|Canon 5D Mark II||Y||mono||mono||Y||-||mini||2.0||-||-||-|
It is notable that the 1DX Mark III offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the 100D does not provide wifi capability.
Studio photographers will appreciate that the Canon 1D X Mark III (unlike the 100D) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Travel and landscape photographers will find it useful that the 1DX Mark III has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.
The 1DX Mark III is a recent model that features in the current product line-up of Canon. In contrast, the 100D has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the 100D was succeeded by the Canon 200D. 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 100D better than the Canon 1D X Mark III or vice versa? The listing below highlights the relative strengths of the two models.
Advantages of the Canon EOS 100D:
- More compact: Is smaller (117x91mm vs 158x168mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 1033g or 72 percent) and hence easier to carry around.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More affordable: Was introduced into a lower priced category (92 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in March 2013).
Reasons to prefer the Canon EOS-1D X Mark III:
- More detail: Has more megapixels (20 vs 17.9MP), which boosts linear resolution by 6%.
- Better image quality: Scores substantially higher (28 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (2.4 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (3.2 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (1.9 stops ISO advantage).
- Better jpgs: Has a more modern image processing engine (DIGIC X vs DIGIC 5).
- Better video: Provides higher definition movie capture (4K/60p vs 1080/30p).
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- 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 a control panel on top to check 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 (2100k vs 1040k dots).
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (20 vs 4.9 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 (2850 versus 380) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Easier geotagging: Features an internal GPS sensor to log localization data.
- Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- 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 6 years and 9 months of technical progress since the 100D launch.
If the number of relative strengths (bullet points above) is taken as a guide, the 1DX Mark III is the clear winner of the contest (26 : 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 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 100D and the Canon 1D X Mark III 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 100D or the 1DX Mark III. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.
This is why expert reviews are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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.
|Canon 100D||+||78/100||4/5||4/5||4/5||Mar 2013||549|
|Canon 1D X Mark III||+ +||..||4.5/5||..||4/5||Jan 2020||6,499|
|Canon 4000D||o||..||3.5/5||..||3.5/5||Feb 2018||399|
|Canon 200D||+ +||78/100||4.5/5||4.5/5||4.5/5||Jun 2017||549|
|Canon 1D X Mark II||..||89/100||4.5/5||5/5||4.5/5||Feb 2016||5,999|
|Canon 7D II||+||84/100||4/5||5/5||4.5/5||Sep 2014||1,799|
|Canon 1200D||+||..||4/5||4/5||4.5/5||Feb 2014||449|
|Canon 700D||..||76/100||4.5/5||4.5/5||4.5/5||Mar 2013||649|
|Canon G16||+||..||4.5/5||4.5/5||4.5/5||Aug 2013||549|
|Canon 1D C||..||..||..||..||..||Apr 2012||14,999|
|Canon 5D Mark III||+ +||82/100||4.5/5||5/5||4.5/5||Mar 2012||3,499|
|Canon 650D||+ +||77/100||4.5/5||4.5/5||4.5/5||Jun 2012||849|
|Canon M||+||..||4/5||3.5/5||4/5||Jul 2012||599|
|Canon 1D X||..||..||4.5/5||4.5/5||4.5/5||Oct 2011||6,799|
|Canon 600D||o||77/100||4.5/5||5/5||4.5/5||Feb 2011||599|
|Canon 5D Mark II||91/100||79/100||4/5||5/5||..||Sep 2008||3,499|
|Panasonic G6||+ +||..||5/5||..||4.5/5||Apr 2013||599|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. 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 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 100D vs Canon 1D X Mark III
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 100D||Canon 1D X Mark III|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Canon EF mount lenses|
|Launch Date||March 2013||January 2020|
|Launch Price||USD 549||USD 6,499|
|Sensor Specs||Canon 100D||Canon 1D X Mark III|
|Sensor Format||APS-C Sensor||Full Frame Sensor|
|Sensor Size||22.3 x 14.9 mm||36.0 x 24.0 mm|
|Sensor Area||332.27 mm2||864 mm2|
|Sensor Diagonal||26.8 mm||43.3 mm|
|Sensor Resolution||17.9 Megapixels||20 Megapixels|
|Image Resolution||5184 x 3456 pixels||5472 x 3648 pixels|
|Pixel Pitch||4.31 μm||6.57 μm|
|Pixel Density||5.39 MP/cm2||2.31 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/30p Video||4K/60p Video|
|ISO Setting||100 - 12,800 ISO||100 - 102,400 ISO|
|ISO Boost||100 - 25,600 ISO||50 - 819,200 ISO|
|Image Processor||DIGIC 5||DIGIC X|
|DXO Sensor Quality (score)||63||91|
|DXO Color Depth (bits)||21.8||24.2|
|DXO Dynamic Range (EV)||11.3||14.5|
|DXO Low Light (ISO)||843||3248|
|Screen Specs||Canon 100D||Canon 1D X Mark III|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||95%||100%|
|Top-Level Screen||no Top Display||Control Panel|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.2inch|
|LCD Resolution||1040k dots||2100k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Canon 100D||Canon 1D X Mark III|
|Focus System||Phase-detect AF||Phase-detect AF|
|Continuous Shooting||4.9 shutter flaps/s||20 shutter flaps/s|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Fill Flash||Build-in Flash||no On-Board Flash|
|Storage Medium||SDXC cards||CFexpress cards|
|Second Storage Option||Single card slot||Dual card slots|
|Connectivity Specs||Canon 100D||Canon 1D X Mark III|
|Studio Flash||no PC Sync||PC Sync socket|
|USB Connector||USB 2.0||USB 3.1|
|HDMI Port||mini HDMI||mini HDMI|
|Microphone Port||External MIC port||External MIC port|
|Headphone Socket||no Headphone port||Headphone port|
|Wifi Support||no Wifi||Wifi built-in|
|Bluetooth Support||no Bluetooth||Bluetooth built-in|
|Geotagging||no internal GPS||GPS built-in|
|Body Specs||Canon 100D||Canon 1D X Mark III|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||380 shots per charge||2850 shots per charge|
117 x 91 x 69 mm
(4.6 x 3.6 x 2.7 in)
158 x 168 x 83 mm
(6.2 x 6.6 x 3.3 in)
|Camera Weight||407 g (14.4 oz)||1440 g (50.8 oz)|
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