Canon 1D X Mark III vs Pentax K-3 III
The Canon EOS-1D X Mark III and the Pentax K-3 III are two digital cameras that were officially introduced, respectively, in January 2020 and March 2021. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (1DX Mark III) and an APS-C (K-3 III) sensor. The Canon has a resolution of 20 megapixels, whereas the Pentax provides 25.6 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-1D X Mark III and the Pentax K-3 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 Mark III and the Pentax K-3 III. 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 dimensions are rounded to the nearest millimeter.
The K-3 III can be obtained in two different colors (black, silver), 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 Pentax K-3 III is considerably smaller (47 percent) than the Canon 1D X Mark III. Moreover, the K-3 III is substantially lighter (43 percent) than the 1DX Mark III. 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. 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 1DX Mark III gets 2850 shots out of its LP-E19 battery, while the K-3 III can take 800 images on a single charge of its D-LI90 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 K-3 III, Pentax provides the D-BG8 vertical grip as an optional accessory (see here on ebay).
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 1D X Mark III||158 mm||168 mm||83 mm||1440 g||2850||Y||Jan 2020||6,499||amazon.com|
|2.||Pentax K-3 III||135 mm||104 mm||74 mm||820 g||800||Y||Mar 2021||1,999||amazon.com|
|3.||Canon R3||150 mm||143 mm||87 mm||1015 g||760||Y||Sep 2021||5,999||amazon.com|
|4.||Canon 1D X Mark II||158 mm||168 mm||83 mm||1530 g||1210||Y||Feb 2016||5,999||ebay.com|
|5.||Canon 1D C||158 mm||164 mm||83 mm||1545 g||1120||Y||Apr 2012||14,999||ebay.com|
|6.||Canon 5D Mark III||152 mm||116 mm||76 mm||950 g||950||Y||Mar 2012||3,499||ebay.com|
|7.||Canon 6D||145 mm||111 mm||71 mm||770 g||1090||Y||Sep 2012||2,099||ebay.com|
|8.||Canon 1D X||158 mm||168 mm||83 mm||1551 g||1120||Y||Oct 2011||6,799||ebay.com|
|9.||Canon 5D Mark II||152 mm||114 mm||75 mm||850 g||850||Y||Sep 2008||3,499||ebay.com|
|10.||Canon 1Ds Mark III||150 mm||160 mm||80 mm||1385 g||1800||Y||Aug 2007||7,999||ebay.com|
|11.||Canon 1Ds Mark II||156 mm||158 mm||80 mm||1215 g||1200||Y||Sep 2004||7,999||ebay.com|
|12.||Fujifilm X-H1||140 mm||97 mm||86 mm||673 g||310||Y||Feb 2018||1,899||ebay.com|
|13.||Nikon D6||160 mm||163 mm||92 mm||1270 g||3580||Y||Feb 2020||6,499||amazon.com|
|14.||Pentax KP||132 mm||101 mm||76 mm||703 g||390||Y||Jan 2017||1,099||ebay.com|
|15.||Pentax K-70||126 mm||93 mm||74 mm||688 g||410||Y||Jun 2016||649||amazon.com|
|16.||Pentax K-3 II||131 mm||100 mm||77 mm||800 g||720||Y||Apr 2015||1,099||ebay.com|
|17.||Pentax K-3||131 mm||100 mm||77 mm||800 g||560||Y||Oct 2013||1,299||ebay.com|
|Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will naturally be influenced heavily by the price. 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 K-3 III was launched at a markedly lower price (by 69 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.
The size of the sensor inside a digital camera is one of the key determinants of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixels 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 1D X Mark III features a full frame sensor and the Pentax K-3 III an APS-C sensor. The sensor area in the K-3 III is 58 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Despite having a smaller sensor, the K-3 III offers a higher resolution of 25.6 megapixels, compared with 20 MP of the 1DX Mark III. 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 3.76μm versus 6.57μm for the 1DX Mark III). However, it should be noted that the K-3 III is a somewhat more recent model (by 1 year and 2 months) than the 1DX Mark III, and its sensor might have benefitted from technological advances during this time that partly offset its pixel-size disadvantage. Coming back to sensor resolution, it should be mentioned that the K-3 III has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Pentax K-3 III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the K-3 III for good quality output (200 dots per inch) amounts to 31 x 20.6 inches or 78.6 x 52.4 cm, for very good quality (250 dpi) 24.8 x 16.5 inches or 62.9 x 41.9 cm, and for excellent quality (300 dpi) 20.6 x 13.8 inches or 52.4 x 35 cm. The corresponding values for the Canon 1D X Mark III are 27.4 x 18.2 inches or 69.5 x 46.3 cm for good quality, 21.9 x 14.6 inches or 55.6 x 37.1 cm for very good quality, and 18.2 x 12.2 inches or 46.3 x 30.9 cm for excellent quality prints.
The 1DX Mark III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
Unlike the 1DX Mark III, the K-3 III has the capacity to capture high quality composite images (YESMP) 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 Mark III has a native sensitivity range from ISO 100 to ISO 102400, which can be extended to ISO 50-819200. The corresponding ISO settings for the Pentax K-3 III are ISO 100 to ISO 160000 (no boost).
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
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. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|1.||Canon 1D X Mark III||Full Frame||20.0||5472||3648||4K/60p||24.2||14.5||3248||91|
|2.||Pentax K-3 III||APS-C||25.6||6192||4128||4K/30p||24.2||13.7||2083||85|
|3.||Canon R3||Full Frame||24.0||6000||4000||6K/60p||25.0||14.7||4086||96|
|4.||Canon 1D X Mark II||Full Frame||20.0||5472||3648||4K/60p||24.1||13.5||3207||88|
|5.||Canon 1D C||Full Frame||17.9||5184||3456||4K/24p||24.3||13.0||2155||85|
|6.||Canon 5D Mark III||Full Frame||22.1||5760||3840||1080/30p||24.0||11.7||2293||81|
|7.||Canon 6D||Full Frame||20.0||5472||3648||1080/30p||23.8||12.1||2340||82|
|8.||Canon 1D X||Full Frame||17.9||5184||3456||1080/30p||23.8||11.8||2786||82|
|9.||Canon 5D Mark II||Full Frame||21.0||5616||3744||1080/30p||23.7||11.9||1815||79|
|10.||Canon 1Ds Mark III||Full Frame||21.0||5616||3744||none||24.0||12.0||1663||80|
|11.||Canon 1Ds Mark II||Full Frame||16.6||4992||3328||none||23.3||11.3||1480||74|
|13.||Nikon D6||Full Frame||20.7||5568||3712||4K/30p||25.3||14.3||2886||95|
|16.||Pentax K-3 II||APS-C||24.1||6016||4000||1080/60i||23.6||13.6||1106||80|
|Note: DXO values in italics represent estimates based on sensor size and age.|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the 1DX Mark III provides a higher frame rate than the K-3 III. It can shoot video footage at 4K/60p, while the Pentax is limited to 4K/30p.
Apart from body and sensor, cameras can and do differ across a variety of features. The 1DX Mark III and the K-3 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 viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the 1DX Mark III has a higher magnification than the one of the K-3 III (0.76x vs 0.70x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The following table reports on some other key feature differences and similarities of the Canon 1D X Mark III, the Pentax K-3 III, and comparable cameras.
|1.||Canon 1D X Mark III||optical||Y||3.2 / 2100||fixed||Y||1/8000s||20.0/s||n||n|
|2.||Pentax K-3 III||optical||Y||3.2 / 1620||fixed||Y||1/8000s||12.0/s||n||Y|
|3.||Canon R3||5760||Y||3.2 / 4150||swivel||Y||1/8000s||12.0/s||n||Y|
|4.||Canon 1D X Mark II||optical||Y||3.2 / 1620||fixed||Y||1/8000s||16.0/s||n||n|
|5.||Canon 1D C||optical||Y||3.2 / 1040||fixed||n||1/8000s||14.0/s||n||n|
|6.||Canon 5D Mark III||optical||Y||3.2 / 1040||fixed||n||1/8000s||6.0/s||n||n|
|7.||Canon 6D||optical||Y||3.0 / 1040||fixed||n||1/4000s||4.5/s||n||n|
|8.||Canon 1D X||optical||Y||3.2 / 1040||fixed||n||1/8000s||14.0/s||n||n|
|9.||Canon 5D Mark II||optical||Y||3.0 / 920||fixed||n||1/8000s||3.9/s||n||n|
|10.||Canon 1Ds Mark III||optical||Y||3.0 / 230||fixed||n||1/8000s||5.0/s||n||n|
|11.||Canon 1Ds Mark II||optical||Y||2.0 / 230||fixed||n||1/8000s||4.0/s||n||n|
|12.||Fujifilm X-H1||3690||Y||3.0 / 1040||full-flex||Y||1/8000s||14.0/s||n||Y|
|13.||Nikon D6||optical||Y||3.2 / 2359||fixed||Y||1/8000s||14.0/s||n||n|
|14.||Pentax KP||optical||n||3.0 / 921||tilting||n||1/6000s||7.0/s||Y||Y|
|15.||Pentax K-70||optical||n||3.0 / 921||swivel||n||1/6000s||6.0/s||Y||Y|
|16.||Pentax K-3 II||optical||Y||3.2 / 1037||fixed||n||1/8000s||8.3/s||n||Y|
|17.||Pentax K-3||optical||Y||3.2 / 1037||fixed||n||1/8000s||8.3/s||Y||Y|
|Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.|
One feature that differentiates the K-3 III and the 1DX Mark III is in-body image stabilization (IBIS). The K-3 III reduces the risk of handshake-induced blur with all attached lenses, while the 1DX Mark III offers no blur reduction with lenses that themselves do not provide optical image stabilization.
The Canon 1D X Mark III and the Pentax K-3 III both have 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 Mark III writes its imaging data to CFexpress (type B) cards, while the K-3 III uses SDXC 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 Mark III and Pentax K-3 III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon 1D X Mark III||Y||mono / mono||Y||Y||mini||3.1||Y||-||Y|
|2.||Pentax K-3 III||Y||stereo / mono||Y||Y||micro||3.2||Y||-||Y|
|3.||Canon R3||Y||stereo / mono||Y||Y||micro||3.2||Y||-||Y|
|4.||Canon 1D X Mark II||Y||mono / mono||Y||Y||mini||3.0||-||-||-|
|5.||Canon 1D C||Y||mono / mono||Y||Y||mini||2.0||-||-||-|
|6.||Canon 5D Mark III||Y||mono / mono||Y||Y||mini||2.0||-||-||-|
|7.||Canon 6D||Y||mono / mono||Y||-||mini||2.0||Y||-||-|
|8.||Canon 1D X||Y||mono / -||Y||-||mini||2.0||-||-||-|
|9.||Canon 5D Mark II||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|10.||Canon 1Ds Mark III||Y||mono / -||-||-||-||2.0||-||-||-|
|11.||Canon 1Ds Mark II||Y||- / -||-||-||-||2.0||-||-||-|
|12.||Fujifilm X-H1||Y||stereo / mono||Y||-||micro||3.0||Y||-||-|
|13.||Nikon D6||Y||stereo / mono||Y||Y||mini||3.1||Y||-||Y|
|14.||Pentax KP||Y||stereo / mono||Y||-||-||2.0||Y||-||-|
|15.||Pentax K-70||Y||stereo / mono||Y||-||mini||2.0||Y||-||-|
|16.||Pentax K-3 II||Y||mono / mono||Y||Y||mini||3.0||-||-||-|
|17.||Pentax K-3||Y||mono / mono||Y||Y||mini||3.0||-||-||-|
Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.
Travel and landscape photographers will find it useful that both cameras feature internal geolocalization sensors and can record GPS coordinates in their EXIF data.
Both the 1DX Mark III and the K-3 III are recent models that are part of the current product line-up. The 1DX Mark III replaced the earlier Canon 1DX Mark II, while the K-3 III followed on from the Pentax K-3 II. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Pentax websites.
So how do things add up? Is the Canon 1D X Mark III better than the Pentax K-3 III or vice versa? Below is a summary of the relative strengths of each of the two contestants.
Arguments in favor of the Canon EOS-1D X Mark III:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
- Richer colors: The pixel size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
- Better video: Provides higher movie framerates (4K/60p versus 4K/30p).
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.76x vs 0.70x).
- More detailed LCD: Has a higher resolution rear screen (2100k vs 1620k dots).
- Faster burst: Shoots at higher frequency (20 vs 12 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 (2850 versus 800) on a single battery charge.
- More heavily discounted: Has been on the market for longer (launched in January 2020).
Reasons to prefer the Pentax K-3 III:
- More detail: Has more megapixels (25.6 vs 20MP), which boosts linear resolution by 13%.
- 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.
- More compact: Is smaller (135x104mm vs 158x168mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 620g or 43 percent) and is thus easier to take along.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- Faster data transfer: Supports a more advanced USB protocol (3.2 vs 3.1).
- More affordable: Was introduced into a lower priced category (69 percent cheaper at launch).
- More modern: Was introduced somewhat (1 year and 2 months) more recently.
If the count of relative strengths (bullet points above) is taken as a measure, the 1DX Mark III is the clear winner of the match-up (13 : 9 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 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 1D X Mark III and the Pentax K-3 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 comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the 1DX Mark III or the K-3 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 hands-on reviews by experts are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], 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 1D X Mark III||..||+ +||5/5||..||4.5/5||4/5||Jan 2020||6,499||amazon.com|
|2.||Pentax K-3 III||4/5||..||3/5||..||4.5/5||..||Mar 2021||1,999||amazon.com|
|3.||Canon R3||..||o||4.5/5||..||..||4.5/5||Sep 2021||5,999||amazon.com|
|4.||Canon 1D X Mark II||..||..||4.5/5||89/100||4.5/5||4.5/5||Feb 2016||5,999||ebay.com|
|5.||Canon 1D C||..||..||..||..||..||..||Apr 2012||14,999||ebay.com|
|6.||Canon 5D Mark III||..||+ +||..||82/100||4.5/5||4.5/5||Mar 2012||3,499||ebay.com|
|7.||Canon 6D||5/5||+ +||..||83/100||4.5/5||4.5/5||Sep 2012||2,099||ebay.com|
|8.||Canon 1D X||5/5||..||..||..||4.5/5||4.5/5||Oct 2011||6,799||ebay.com|
|9.||Canon 5D Mark II||4/5||91/100||..||79/100||4/5||..||Sep 2008||3,499||ebay.com|
|10.||Canon 1Ds Mark III||..||..||..||+ +||4.5/5||..||Aug 2007||7,999||ebay.com|
|11.||Canon 1Ds Mark II||..||..||..||+ +||..||..||Sep 2004||7,999||ebay.com|
|12.||Fujifilm X-H1||..||+||5/5||86/100||4.5/5||4.5/5||Feb 2018||1,899||ebay.com|
|13.||Nikon D6||..||..||4/5||..||4.5/5||4.5/5||Feb 2020||6,499||amazon.com|
|14.||Pentax KP||4/5||..||3/5||82/100||5/5||4.5/5||Jan 2017||1,099||ebay.com|
|15.||Pentax K-70||4.5/5||..||..||79/100||4.5/5||4.5/5||Jun 2016||649||amazon.com|
|16.||Pentax K-3 II||4.5/5||..||..||..||5/5||5/5||Apr 2015||1,099||ebay.com|
|17.||Pentax K-3||4/5||..||..||83/100||5/5||5/5||Oct 2013||1,299||ebay.com|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The review scores listed above should be treated with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. Hence, a score should always be seen in the context of the camera's market launch date and its price, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. 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? In case you would like to check on the differences and similarities of other camera models, just make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
- Canon 1D X Mark III vs Canon 400D
- Canon 1D X Mark III vs Fujifilm X-T20
- Canon 1D X Mark III vs Nikon D610
- Canon 1D X Mark III vs Nikon D800
- Canon 1D X Mark III vs Panasonic G85
- Canon 1D X vs Canon 1D X Mark III
- Canon 250D vs Pentax K-3 III
- Canon T100 vs Pentax K-3 III
- Panasonic FZ1000 II vs Pentax K-3 III
- Panasonic G100 vs Pentax K-3 III
- Panasonic GX80 vs Pentax K-3 III
- Pentax K-3 III vs Sony A77 II
Specifications: Canon 1D X Mark III vs Pentax K-3 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 Mark III||Pentax K-3 III|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Pentax K mount lenses|
|Launch Date||January 2020||March 2021|
|Launch Price||USD 6,499||USD 1,999|
|Sensor Specs||Canon 1D X Mark III||Pentax K-3 III|
|Sensor Format||Full Frame Sensor||APS-C Sensor|
|Sensor Size||36.0 x 24.0 mm||23.3 x 15.5 mm|
|Sensor Area||864 mm2||361.15 mm2|
|Sensor Diagonal||43.3 mm||28 mm|
|Sensor Resolution||20 Megapixels||25.6 Megapixels|
|Image Resolution||5472 x 3648 pixels||6192 x 4128 pixels|
|Pixel Pitch||6.57 μm||3.76 μm|
|Pixel Density||2.31 MP/cm2||7.08 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||4K/60p Video||4K/30p Video|
|ISO Setting||100 - 102,400 ISO||100 - 160,000 ISO|
|ISO Boost||50 - 819,200 ISO||no Enhancement|
|Image Processor||DIGIC X||PRIME V|
|DXO Sensor Quality (score)||91||..|
|DXO Color Depth (bits)||24.2||..|
|DXO Dynamic Range (EV)||14.5||..|
|DXO Low Light (ISO)||3248||..|
|Screen Specs||Canon 1D X Mark III||Pentax K-3 III|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||100%||100%|
|Top-Level Screen||Control Panel||Control Panel|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.2inch||3.2inch|
|LCD Resolution||2100k dots||1620k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Canon 1D X Mark III||Pentax K-3 III|
|Focus System||Phase-detect AF||Phase-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/8000s||1/8000s|
|Continuous Shooting||20 shutter flaps/s||12 shutter flaps/s|
|Shutter Life Expectancy||500 000 actuations||200 000 actuations|
|Time-Lapse Photography||Intervalometer built-in||Intervalometer built-in|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||no On-Board Flash||no On-Board Flash|
|Storage Medium||CFexB cards||SDXC cards|
|Second Storage Option||Dual card slots||Dual card slots|
|Connectivity Specs||Canon 1D X Mark III||Pentax K-3 III|
|Studio Flash||PC Sync socket||PC Sync socket|
|USB Connector||USB 3.1||USB 3.2|
|HDMI Port||mini HDMI||micro HDMI|
|Microphone Port||External MIC port||External MIC port|
|Headphone Socket||Headphone port||Headphone port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Bluetooth Support||Bluetooth built-in||Bluetooth built-in|
|Geotagging||GPS built-in||GPS built-in|
|Body Specs||Canon 1D X Mark III||Pentax K-3 III|
|Environmental Sealing||Weathersealed body||Weathersealed body|
|Battery Life (CIPA)||2850 shots per charge||800 shots per charge|
158 x 168 x 83 mm
(6.2 x 6.6 x 3.3 in)
135 x 104 x 74 mm
(5.3 x 4.1 x 2.9 in)
|Camera Weight||1440 g (50.8 oz)||820 g (28.9 oz)|
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