Canon 1D X vs Sony A7R III
The Canon EOS-1D X and the Sony Alpha A7R III are two digital cameras that were announced, respectively, in October 2011 and October 2017. The 1DX is a DSLR, while the A7R III is a mirrorless interchangeable lens camera. Both cameras are equipped with a full frame sensor. The Canon has a resolution of 17.9 megapixels, whereas the Sony provides 42.2 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Canon 1D X||Sony A7R III|
|Digital single lens reflex||Mirrorless system camera|
|Canon EF mount lenses||Sony E mount lenses|
|17.9 MP, Full Frame Sensor||42.2 MP, Full Frame Sensor|
|1080/30p Video||4K/30p Video|
|ISO 100-51200 (50-204800)||ISO 100-32000 (50-102400)|
|Optical viewfinder||Electronic viewfinder (3686k dots)|
|3.2" LCD, 1040k dots||3.0" LCD, 1440k dots|
|Fixed screen (not touch-sensitive)||Tilting touchscreen|
|14 shutter flaps per second||10 shutter flaps per second|
|Lens stabilization only||In-body stabilization|
|Weathersealed body||Weathersealed body|
|1120 shots per battery charge||650 shots per battery charge|
|158 x 168 x 83 mm, 1551 g||127 x 96 x 74 mm, 650 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS-1D X and the Sony Alpha A7R 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 side-by-side display below illustrates the physical size and weight of the Canon 1D X and the Sony A7R III. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All size dimensions 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 Sony A7R III is considerably smaller (54 percent) than the Canon 1D X. Moreover, the A7R III is substantially lighter (58 percent) than the 1DX. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.
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. Both cameras have similarly sized sensors, but DSLRs have a larger flange-to-focal plane distance than mirrorless cameras, which imposes contraints on the optical engineering process and generally leads to bigger and heavier lenses. You can compare the optics available for the two cameras in the Canon EF Lens Catalog (1DX) and the Sony FE Lens Catalog (A7R III). Mirrorless cameras, such as the A7R III, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.
Concerning battery life, the 1DX gets 1120 shots out of its LP-E4N battery, while the A7R III can take 650 images on a single charge of its NP-FZ100 power pack. As can be seen in the images above, the 1DX 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 A7R III, Sony provides the VG-C3EM vertical grip as an optional accessory (see here on eBay). The power pack in the A7R III can be charged via the USB port, which can be very convenient when travelling.
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, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.
|Canon 1D X»||158 mm||168 mm||83 mm||1551 g||1120||Y||Oct 2011||6,799||Canon 1D X|
|Sony A7R III«||127 mm||96 mm||74 mm||650 g||650||Y||Oct 2017||3,199||Sony A7R III|
|Canon 1D X Mark III« »||158 mm||168 mm||83 mm||1440 g||2850||Y||Jan 2020||6,499||Canon 1D X Mark III|
|Canon 1D X Mark II« »||158 mm||168 mm||83 mm||1530 g||1210||Y||Feb 2016||5,999||Canon 1D X Mark II|
|Canon 1D C« »||158 mm||164 mm||83 mm||1545 g||1120||Y||Apr 2012||14,999||Canon 1D C|
|Canon 5D Mark III« »||152 mm||116 mm||76 mm||950 g||950||Y||Mar 2012||3,499||Canon 5D Mark III|
|Canon 6D« »||145 mm||111 mm||71 mm||770 g||1090||Y||Sep 2012||2,099||Canon 6D|
|Canon 5D Mark II« »||152 mm||114 mm||75 mm||850 g||850||Y||Sep 2008||3,499||Canon 5D Mark II|
|Canon 1Ds Mark III« »||150 mm||160 mm||80 mm||1385 g||1800||Y||Aug 2007||7,999||Canon 1Ds Mark III|
|Canon 1Ds Mark II« »||156 mm||158 mm||80 mm||1215 g||1200||Y||Sep 2004||7,999||Canon 1Ds Mark II|
|Nikon D5« »||160 mm||159 mm||92 mm||1415 g||3780||Y||Jan 2016||6,499||Nikon D5|
|Nikon D4« »||160 mm||157 mm||91 mm||1340 g||2600||Y||Jan 2012||5,999||Nikon D4|
|Sony A7 III« »||127 mm||96 mm||74 mm||650 g||610||Y||Feb 2018||1,999||Sony A7 III|
|Sony A9« »||127 mm||96 mm||63 mm||673 g||650||Y||Apr 2017||4,499||Sony A9|
|Sony A99 II« »||143 mm||104 mm||76 mm||849 g||490||Y||Sep 2016||3,199||Sony A99 II|
|Sony A7R II« »||127 mm||96 mm||60 mm||625 g||290||Y||Jun 2015||3,199||Sony A7R II|
|Sony A7S II« »||127 mm||96 mm||60 mm||627 g||370||Y||Sep 2015||2,999||Sony A7S II|
|Note: Measurements and pricing do not include easily detachable parts, such as 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 A7R III was launched at a markedly lower price (by 53 percent) than the 1DX, 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.
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 tend to be associated with larger, more expensive camera bodies and lenses.
Both cameras under consideration feature a full frame sensor, but their sensors differ slightly in size. They nevertheless have the same format factor of 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Despite having a slightly smaller sensor, the A7R III offers a higher resolution of 42.2 megapixels, compared with 17.9 MP of the 1DX. 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 4.52μm versus 6.95μm for the 1DX). However, it should be noted that the A7R III is much more recent (by 6 years) than the 1DX, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. Coming back to sensor resolution, it should be mentioned that the A7R III has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Sony A7R III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7R III for good quality output (200 dots per inch) amounts to 39.8 x 26.5 inch or 101 x 67.4 cm, for very good quality (250 dpi) 31.8 x 21.2 inch or 80.8 x 53.9 cm, and for excellent quality (300 dpi) 26.5 x 17.7 inch or 67.3 x 44.9 cm. The corresponding values for the Canon 1D X are 25.9 x 17.3 inch or 65.8 x 43.9 cm for good quality, 20.7 x 13.8 inch or 52.7 x 35.1 cm for very good quality, and 17.3 x 11.5 inch or 43.9 x 29.3 cm for excellent quality prints.
The A7R III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
Unlike the 1DX, the A7R III has the capacity to capture high quality composite images by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).
The Canon EOS-1D X has a native sensitivity range from ISO 100 to ISO 51200, which can be extended to ISO 50-204800. The corresponding ISO settings for the Sony Alpha A7R III are ISO 100 to ISO 32000, with the possibility to increase the ISO range to 50-102400.
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 A7R III offers substantially better image quality than the 1DX (overall score 18 points higher). The advantage is based on 2.2 bits higher color depth, 2.9 EV in additional dynamic range, and 0.3 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 1D X||Full Frame||17.9||5184||3456||1080/30p||23.8||11.8||2786||82||Canon 1D X|
|Sony A7R III||Full Frame||42.2||7952||5304||4K/30p||26.0||14.7||3523||100||Sony A7R III|
|Canon 1D X Mark III||Full Frame||20.0||5472||3648||4K/60p||..||..||..||..||Canon 1D X Mark III|
|Canon 1D X Mark II||Full Frame||20.0||5472||3648||4K/60p||24.1||13.5||3207||88||Canon 1D X Mark II|
|Canon 1D C||Full Frame||17.9||5184||3456||4K/24p||..||..||..||..||Canon 1D C|
|Canon 5D Mark III||Full Frame||22.1||5760||3840||1080/30p||24.0||11.7||2293||81||Canon 5D Mark III|
|Canon 6D||Full Frame||20.0||5472||3648||1080/30p||23.8||12.1||2340||82||Canon 6D|
|Canon 5D Mark II||Full Frame||21.0||5616||3744||1080/30p||23.7||11.9||1815||79||Canon 5D Mark II|
|Canon 1Ds Mark III||Full Frame||21.0||5616||3744||none||24.0||12.0||1663||80||Canon 1Ds Mark III|
|Canon 1Ds Mark II||Full Frame||16.6||4992||3328||none||23.3||11.3||1480||74||Canon 1Ds Mark II|
|Nikon D5||Full Frame||20.7||5588||3712||4K/30p||25.1||12.3||2343||88||Nikon D5|
|Nikon D4||Full Frame||16.2||4928||3280||1080/30p||24.7||13.1||2965||89||Nikon D4|
|Sony A7 III||Full Frame||24.0||6000||4000||4K/30p||25.0||14.7||3730||96||Sony A7 III|
|Sony A9||Full Frame||24.0||6000||4000||4K/30p||24.9||13.3||3517||92||Sony A9|
|Sony A99 II||Full Frame||42.2||7952||5304||4K/30p||25.4||13.4||2317||92||Sony A99 II|
|Sony A7R II||Full Frame||42.2||7952||5304||4K/30p||26.0||13.9||3434||98||Sony A7R II|
|Sony A7S II||Full Frame||12.0||4240||2832||4K/30p||23.6||13.3||2993||85||Sony A7S II|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the A7R III provides a better video resolution than the 1DX. It can shoot movie footage at 4K/30p, while the Canon is limited to 1080/30p.
Apart from body and sensor, cameras can and do differ across a range of features. For example, the A7R III has an electronic viewfinder (3686k dots), while the 1DX has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the A7R III has a higher magnification than the one of the 1DX (0.78x vs 0.76x), 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 1D X and Sony A7R III in connection with corresponding information for a sample of similar cameras.
|Canon 1D X||optical||Y||3.2||1040||fixed||n||1/8000s||14.0||n||n||Canon 1D X|
|Sony A7R III||3686||n||3.0||1440||tilting||Y||1/8000s||10.0||n||Y||Sony A7R III|
|Canon 1D X Mark III||optical||Y||3.2||2100||fixed||Y||1/8000s||20.0||n||n||Canon 1D X Mark III|
|Canon 1D X Mark II||optical||Y||3.2||1620||fixed||Y||1/8000s||16.0||n||n||Canon 1D X Mark II|
|Canon 1D C||optical||Y||3.2||1040||fixed||n||1/8000s||14.0||n||n||Canon 1D C|
|Canon 5D Mark III||optical||Y||3.2||1040||fixed||n||1/8000s||6.0||n||n||Canon 5D Mark III|
|Canon 6D||optical||Y||3.0||1040||fixed||n||1/4000s||4.5||n||n||Canon 6D|
|Canon 5D Mark II||optical||Y||3.0||920||fixed||n||1/8000s||3.9||n||n||Canon 5D Mark II|
|Canon 1Ds Mark III||optical||Y||3.0||230||fixed||n||1/8000s||5.0||n||n||Canon 1Ds Mark III|
|Canon 1Ds Mark II||optical||Y||2.0||230||fixed||n||1/8000s||4.0||n||n||Canon 1Ds Mark II|
|Nikon D5||optical||Y||3.2||2359||fixed||Y||1/8000s||14.0||n||n||Nikon D5|
|Nikon D4||optical||Y||3.2||921||fixed||n||1/8000s||11.0||n||n||Nikon D4|
|Sony A7 III||2359||n||3.0||922||tilting||Y||1/8000s||10.0||n||Y||Sony A7 III|
|Sony A9||3686||n||3.0||1440||tilting||Y||1/8000s||20.0||n||Y||Sony A9|
|Sony A99 II||2400||Y||3.0||1229||full-flex||n||1/8000s||12.0||n||Y||Sony A99 II|
|Sony A7R II||2400||n||3.0||1229||tilting||n||1/8000s||5.0||n||Y||Sony A7R II|
|Sony A7S II||2400||n||3.0||1229||tilting||n||1/8000s||5.0||n||Y||Sony A7S II|
One feature that is present on the 1DX, but is missing on the A7R III 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 reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the A7R III is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).
The Sony A7R 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 1DX writes its imaging data to Compact Flash cards, while the A7R III uses SDXC or Memory Stick PRO Duo cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails.
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-1D X and Sony Alpha A7R III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Canon 1D X||Y||mono||none||Y||-||mini||2.0||-||-||-||Canon 1D X|
|Sony A7R III||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y||Sony A7R III|
|Canon 1D X Mark III||Y||mono||mono||Y||Y||mini||3.1||Y||-||Y||Canon 1D X Mark III|
|Canon 1D X Mark II||Y||mono||mono||Y||Y||mini||3.0||-||-||-||Canon 1D X Mark II|
|Canon 1D C||Y||mono||mono||Y||Y||mini||2.0||-||-||-||Canon 1D C|
|Canon 5D Mark III||Y||mono||mono||Y||Y||mini||2.0||-||-||-||Canon 5D Mark III|
|Canon 6D||Y||mono||mono||Y||-||mini||2.0||Y||-||-||Canon 6D|
|Canon 5D Mark II||Y||mono||mono||Y||-||mini||2.0||-||-||-||Canon 5D Mark II|
|Canon 1Ds Mark III||Y||none||none||-||-||none||2.0||-||-||-||Canon 1Ds Mark III|
|Canon 1Ds Mark II||Y||none||none||-||-||none||2.0||-||-||-||Canon 1Ds Mark II|
|Nikon D5||Y||stereo||mono||Y||Y||mini||3.0||-||-||-||Nikon D5|
|Nikon D4||Y||mono||mono||Y||Y||micro||2.0||-||-||-||Nikon D4|
|Sony A7 III||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y||Sony A7 III|
|Sony A9||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||Y||Sony A9|
|Sony A99 II||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||Y||Sony A99 II|
|Sony A7R II||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7R II|
|Sony A7S II||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7S II|
It is notable that the A7R III offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the 1DX does not offer wifi capability.
Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.
Both the 1DX and the A7R III have been discontinued, but can regularly be found used on eBay. The 1DX was replaced by the Canon 1DX Mark II, while the A7R III was followed by the Sony A7R IV. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Sony websites.
So what is the bottom line? Is there a clear favorite between the Canon 1D X and the Sony A7R III? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.
Reasons to prefer the Canon EOS-1D X:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
- Faster burst: Shoots at higher frequency (14 vs 10 flaps/sec) to capture the decisive moment.
- More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
- Longer lasting: Can take more shots (1120 versus 650) on a single battery charge.
- More heavily discounted: Has been available for much longer (launched in October 2011).
Advantages of the Sony Alpha A7R III:
- More detail: Has more megapixels (42.2 vs 17.9MP), which boosts linear resolution by 53%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- High quality composites: Can combine several shots after pixel-shifting its sensor.
- Better image quality: Scores substantially higher (18 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (2.2 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (2.9 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (0.3 stops ISO advantage).
- Better video: Provides higher definition movie capture (4K/30p vs 1080/30p).
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- More framing info: Has an electronic viewfinder that displays shooting data.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.76x).
- More detailed LCD: Has a higher resolution rear screen (1440k vs 1040k 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.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More compact: Is smaller (127x96mm vs 158x168mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 901g or 58 percent) and is thus easier to take along.
- Easier travel charging: Can be conveniently charged via its USB port.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- 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 device pairing: Supports NFC for fast wireless image transfer over short distances.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- More affordable: Was introduced into a lower priced category (53 percent cheaper at launch).
- More modern: Reflects 6 years of technical progress since the 1DX launch.
If the count of relative strengths (bullet points above) is taken as a measure, the A7R III is the clear winner of the contest (27 : 8 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 wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro 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 1D X and the Sony A7R III place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings 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 1DX or the A7R III. 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 (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.
The review scores listed above should be treated with care, 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. 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? 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 X Mark II vs Canon SX70
- Canon 1D X Mark II vs Zeiss ZX1
- Canon 1D X Mark III vs Fujifilm X-T2
- Canon 1D X Mark III vs Olympus E-M1 III
- Canon 1D X vs Leica S-E Typ 006
- Canon 1D X vs Leica X Vario
- Canon T3 vs Sony A7R III
- Fujifilm X100V vs Sony A7R III
- Kodak AZ901 vs Sony A7R III
- Olympus TG-5 vs Sony A7R III
- Panasonic S1R vs Sony A7R III
- Sony A7R III vs Sony RX100 III
Specifications: Canon 1D X vs Sony A7R 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 1D X||Sony A7R III|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Canon EF mount lenses||Sony E mount lenses|
|Launch Date||October 2011||October 2017|
|Launch Price||USD 6799||USD 3199|
|Sensor Specs||Canon 1D X||Sony A7R III|
|Sensor Format||Full Frame Sensor||Full Frame Sensor|
|Sensor Size||36.0 x 24.0 mm||35.9 x 24.0 mm|
|Sensor Area||864 mm2||861.6 mm2|
|Sensor Diagonal||43.3 mm||43.2 mm|
|Sensor Resolution||17.9 Megapixels||42.2 Megapixels|
|Image Resolution||5184 x 3456 pixels||7952 x 5304 pixels|
|Pixel Pitch||6.95 μm||4.52 μm|
|Pixel Density||2.07 MP/cm2||4.90 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||1080/30p Video||4K/30p Video|
|ISO Setting||100-51200 ISO||100-32000 ISO|
|ISO Boost||50-204800 ISO||50-102400 ISO|
|Image Processor||DIGIC 5+ (Dual)||BIONZ X|
|DXO Sensor Quality (score)||82||100|
|DXO Color Depth (bits)||23.8||26.0|
|DXO Dynamic Range (EV)||11.8||14.7|
|DXO Low Light (ISO)||2786||3523|
|Screen Specs||Canon 1D X||Sony A7R III|
|Viewfinder Type||Optical viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||3686k dots|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.2 inch||3.0 inch|
|LCD Resolution||1040k dots||1440k dots|
|LCD Attachment||Fixed screen||Tilting screen|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Canon 1D X||Sony A7R III|
|Focus System||Phase-detect AF||On-Sensor Phase-detect|
|Manual Focusing Aid||No Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/8000/s||1/8000/s|
|Continuous Shooting||14 shutter flaps/s||10 shutter flaps/s|
|Shutter Life Expectancy||400 000 actuations||500 000 actuations|
|Electronic Shutter||no E-Shutter||YES|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||no On-Board Flash||no On-Board Flash|
|Storage Medium||CF cards||MS or SDXC cards|
|Second Storage Option||Dual card slots||Dual card slots|
|Connectivity Specs||Canon 1D X||Sony A7R III|
|Studio Flash||PC Sync socket||PC Sync socket|
|USB Connector||USB 2.0||USB 3.1|
|HDMI Port||mini HDMI||micro HDMI|
|Microphone Port||External MIC port||External MIC port|
|Headphone Socket||no Headphone port||Headphone port|
|Wifi Support||no Wifi||Wifi built-in|
|Near-Field Communication||no NFC||NFC built-in|
|Bluetooth Support||no Bluetooth||Bluetooth built-in|
|Body Specs||Canon 1D X||Sony A7R III|
|Environmental Sealing||Weathersealed body||Weathersealed body|
|Battery Life (CIPA)||1120 shots per charge||650 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
158 x 168 x 83 mm
(6.2 x 6.6 x 3.3 in)
127 x 96 x 74 mm
(5.0 x 3.8 x 2.9 in)
|Camera Weight||1551 g (54.7 oz)||650 g (22.9 oz)|
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