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Canon 1D X Mark III vs Pentax K-1 II

The Canon EOS-1D X Mark III and the Pentax K-1 II are two digital cameras that were revealed to the public, respectively, in January 2020 and February 2018. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with a full frame sensor. The Canon has a resolution of 20 megapixels, whereas the Pentax provides 36.2 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Canon 1D X Mark III   VS Pentax K-1 II
Canon 1D X Mark III Pentax K-1 II
Digital single lens reflex Digital single lens reflex
Canon EF mount lenses Pentax K mount lenses
20 MP, Full Frame Sensor 36.2 MP, Full Frame Sensor
4K/60p Video 1080/60i Video
ISO 100-102400 (50-819200) ISO 100-819200
Optical viewfinder Optical viewfinder
3.2" LCD, 2100k dots 3.2" LCD, 1037k dots
Fixed touchscreen Fully flexible screen (no touchscreen)
20 shutter flaps per second 4.4 shutter flaps per second
Lens stabilization onlyIn-body stabilization
Weathersealed bodyWeathersealed body
2850 shots per battery charge670 shots per battery charge
158 x 168 x 83 mm, 1440 g 137 x 110 x 86 mm, 1010 g

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-1 II? 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.

Body comparison

An illustration of the physical size and weight of the Canon 1D X Mark III and the Pentax K-1 II 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 size dimensions are rounded to the nearest millimeter.

The K-1 II can be obtained in two different colors (black, silver), while the 1DX Mark III is only available in black.

Size Canon 1D X Mark III vs Pentax K-1 II
Compare 1DX Mark III versus K-1 II top
Comparison 1DX Mark III or K-1 II rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax K-1 II is considerably smaller (43 percent) than the Canon 1D X Mark III. Moreover, the K-1 II is markedly lighter (30 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-1 II can take 670 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-1 II, Pentax provides the D-BG6 vertical grip as an optional accessory (see here on eBay).

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Camera
Model
 
Canon 1D X Mark III» 6.2 in 6.6 in 3.3 in 50.8 oz 2850 Y Jan 2020 6,499 iCanon 1D X Mark III
 
Pentax K-1 II« 5.4 in 4.3 in 3.4 in 35.6 oz 670 Y Feb 2018 1,999 iPentax K-1 II
 
Canon 1D X Mark II« » 6.2 in 6.6 in 3.3 in 54.0 oz 1210 Y Feb 2016 5,999iCanon 1D X Mark II
 
Canon 1D C« » 6.2 in 6.5 in 3.3 in 54.5 oz 1120 Y Apr 2012 14,999iCanon 1D C
 
Canon 5D Mark III« » 6.0 in 4.6 in 3.0 in 33.5 oz 950 Y Mar 2012 3,499iCanon 5D Mark III
 
Canon 6D« » 5.7 in 4.4 in 2.8 in 27.2 oz 1090 Y Sep 2012 2,099iCanon 6D
 
Canon 1D X« » 6.2 in 6.6 in 3.3 in 54.7 oz 1120 Y Oct 2011 6,799iCanon 1D X
 
Canon 5D Mark II« » 6.0 in 4.5 in 3.0 in 30.0 oz 850 Y Sep 2008 3,499iCanon 5D Mark II
 
Canon 1Ds Mark III« » 5.9 in 6.3 in 3.1 in 48.9 oz 1800 Y Aug 2007 7,999iCanon 1Ds Mark III
 
Canon 1Ds Mark II« » 6.1 in 6.2 in 3.1 in 42.9 oz 1200 Y Sep 2004 7,999iCanon 1Ds Mark II
 
Nikon D6« » 6.3 in 6.4 in 3.6 in 44.8 oz 3580 Y Feb 2020 6,499 iNikon D6
 
Nikon D5« » 6.3 in 6.3 in 3.6 in 49.9 oz 3780 Y Jan 2016 6,499iNikon D5
 
Panasonic S1R« » 5.9 in 4.3 in 3.8 in 35.8 oz 380 Y Feb 2019 3,699 iPanasonic S1R
 
Pentax K-1« » 5.4 in 4.3 in 3.4 in 35.6 oz 760 Y Feb 2016 1,799iPentax K-1
 
Sony A7R III« » 5.0 in 3.8 in 2.9 in 22.9 oz 650 Y Oct 2017 3,199iSony A7R III
 
Sony A99 II« » 5.6 in 4.1 in 3.0 in 29.9 oz 490 Y Sep 2016 3,199 iSony A99 II
 
Sony A850« » 6.1 in 4.6 in 3.2 in 31.6 oz 880 Y Aug 2009 1,999iSony A850
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 K-1 II was launched at a markedly lower price (by 69 percent) than the 1DX Mark III, 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.

 

Sensor comparison

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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Both cameras under consideration feature 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.

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors.

Canon 1D X Mark III and Pentax K-1 II sensor measures

Despite having a slightly smaller sensor, the K-1 II offers a higher resolution of 36.2 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 4.88μm versus 6.57μm for the 1DX Mark III). Moreover, it should be noted that the 1DX Mark III is a somewhat more recent model (by 1 year and 10 months) than the K-1 II, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the K-1 II has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Pentax K-1 II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the K-1 II for good quality output (200 dots per inch) amounts to 36.8 x 24.6 inch or 93.5 x 62.4 cm, for very good quality (250 dpi) 29.4 x 19.6 inch or 74.8 x 49.9 cm, and for excellent quality (300 dpi) 24.5 x 16.4 inch or 62.3 x 41.6 cm. The corresponding values for the Canon 1D X Mark III are 27.4 x 18.2 inch or 69.5 x 46.3 cm for good quality, 21.9 x 14.6 inch or 55.6 x 37.1 cm for very good quality, and 18.2 x 12.2 inch 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-1 II 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 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-1 II are ISO 100 to ISO 819200 (no boost).

1DX Mark III versus K-1 II MP

For many cameras, data on sensor performance has been reported by DXO Mark. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
 
Canon 1D X Mark III Full Frame 20.0 5472 36484K/60p........Canon 1D X Mark III
 
Pentax K-1 II Full Frame 36.2 7360 49121080/60i........Pentax K-1 II
 
Canon 1D X Mark II Full Frame 20.0 5472 36484K/60p24.113.5320788Canon 1D X Mark II
 
Canon 1D C Full Frame 17.9 5184 34564K/24p........Canon 1D C
 
Canon 5D Mark III Full Frame 22.1 5760 38401080/30p24.011.7229381Canon 5D Mark III
 
Canon 6D Full Frame 20.0 5472 36481080/30p23.812.1234082Canon 6D
 
Canon 1D X Full Frame 17.9 5184 34561080/30p23.811.8278682Canon 1D X
 
Canon 5D Mark II Full Frame 21.0 5616 37441080/30p23.711.9181579Canon 5D Mark II
 
Canon 1Ds Mark III Full Frame 21.0 5616 3744none24.012.0166380Canon 1Ds Mark III
 
Canon 1Ds Mark II Full Frame 16.6 4992 3328none23.311.3148074Canon 1Ds Mark II
 
Nikon D6 Full Frame 20.7 5568 37124K/30p........Nikon D6
 
Nikon D5 Full Frame 20.7 5588 37124K/30p25.112.3234388Nikon D5
 
Panasonic S1R Full Frame 46.7 8368 55844K/60p26.414.13525100Panasonic S1R
 
Pentax K-1 Full Frame 36.2 7360 49121080/60i25.414.6328096Pentax K-1
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100Sony A7R III
 
Sony A99 II Full Frame 42.2 7952 53044K/30p25.413.4231792Sony A99 II
 
Sony A850 Full Frame 24.4 6048 4032none23.812.2141579Sony A850

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 video resolution than the K-1 II. It can shoot video footage at 4K/60p, while the Pentax is limited to 1080/60i.

 

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The 1DX Mark III and the K-1 II 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-1 II (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 adjacent table lists some of the other core features of the Canon 1D X Mark III and Pentax K-1 II along with similar information for a selection of comparators.

Core Features
  Camera
Model
Viewfinder
(Type or
'000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
Camera
Model
 
Canon 1D X Mark IIIoptical Y 3.2 2100 fixed Y 1/8000s 20.0 n n Canon 1D X Mark III
 
Pentax K-1 IIoptical Y 3.2 1037 full-flex n 1/8000s 4.4 n Y Pentax K-1 II
 
Canon 1D X Mark IIoptical Y 3.2 1620 fixed Y 1/8000s 16.0 n n Canon 1D X Mark II
 
Canon 1D Coptical Y 3.2 1040 fixed n 1/8000s 14.0 n n Canon 1D C
 
Canon 5D Mark IIIoptical Y 3.2 1040 fixed n 1/8000s 6.0 n n Canon 5D Mark III
 
Canon 6Doptical Y 3.0 1040 fixed n 1/4000s 4.5 n n Canon 6D
 
Canon 1D Xoptical Y 3.2 1040 fixed n 1/8000s 14.0 n n Canon 1D X
 
Canon 5D Mark IIoptical Y 3.0 920 fixed n 1/8000s 3.9 n n Canon 5D Mark II
 
Canon 1Ds Mark IIIoptical Y 3.0 230 fixed n 1/8000s 5.0 n n Canon 1Ds Mark III
 
Canon 1Ds Mark IIoptical Y 2.0 230 fixed n 1/8000s 4.0 n n Canon 1Ds Mark II
 
Nikon D6optical Y 3.2 2359 fixed Y 1/8000s 14.0 n n Nikon D6
 
Nikon D5optical Y 3.2 2359 fixed Y 1/8000s 14.0 n n Nikon D5
 
Panasonic S1R5760 Y 3.2 2100 full-flex Y 1/8000s 9.0 n Y Panasonic S1R
 
Pentax K-1optical Y 3.2 1037 full-flex n 1/8000s 4.4 n Y Pentax K-1
 
Sony A7R III3686 n 3.0 1440 tilting Y 1/8000s 10.0 n Y Sony A7R III
 
Sony A99 II2400 Y 3.0 1229 full-flex n 1/8000s 12.0 n Y Sony A99 II
 
Sony A850optical Y 3.0 922 fixed n 1/8000s 3.0 n Y Sony A850

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The 1DX Mark III has a touchscreen, while the K-1 II has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The Canon 1D X Mark III and the Pentax K-1 II 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 cards, while the K-1 II uses SDXC cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails.

 

Connectivity comparison

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-1 II and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Canon 1D X Mark IIIYmonomonoYYmini3.1Y-YCanon 1D X Mark III
 
Pentax K-1 IIYstereomonoYYmicro2.0Y--Pentax K-1 II
 
Canon 1D X Mark IIYmonomonoYYmini3.0---Canon 1D X Mark II
 
Canon 1D CYmonomonoYYmini2.0---Canon 1D C
 
Canon 5D Mark IIIYmonomonoYYmini2.0---Canon 5D Mark III
 
Canon 6DYmonomonoY-mini2.0Y--Canon 6D
 
Canon 1D XYmonononeY-mini2.0---Canon 1D X
 
Canon 5D Mark IIYmonomonoY-mini2.0---Canon 5D Mark II
 
Canon 1Ds Mark IIIYnonenone--none2.0---Canon 1Ds Mark III
 
Canon 1Ds Mark IIYnonenone--none2.0---Canon 1Ds Mark II
 
Nikon D6YstereomonoYYmini3.1Y-YNikon D6
 
Nikon D5YstereomonoYYmini3.0---Nikon D5
 
Panasonic S1RYstereomonoYYfull3.1Y-YPanasonic S1R
 
Pentax K-1YstereomonoYYmicro2.0Y--Pentax K-1
 
Sony A7R IIIYstereomonoYYmicro3.1YYYSony A7R III
 
Sony A99 IIYstereomonoYYmicro2.0YYYSony A99 II
 
Sony A850Ynonenone--mini2.0---Sony A850

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-1 II are recent models that are part of the current product line-up. The K-1 II replaced the earlier Pentax K-1, while the 1DX Mark III followed on from the Canon 1DX Mark 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.

Review summary

So how do things add up? Which of the two cameras – the Canon 1D X Mark III or the Pentax K-1 II – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

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Advantages 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 video: Provides higher definition movie capture (4K/60p vs 1080/60i).
  • 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 1037k dots).
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Faster burst: Shoots at higher frequency (20 vs 4.4 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 670) on a single battery charge.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • More modern: Is somewhat more recent (announced 1 year and 10 months after the K-1 II).

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Arguments in favor of the Pentax K-1 II:

  • More detail: Has more megapixels (36.2 vs 20MP), which boosts linear resolution by 35%.
  • 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 flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
  • More compact: Is smaller (137x110mm vs 158x168mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 430g or 30 percent) and is thus easier to take along.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • More affordable: Was introduced into a lower priced category (69 percent cheaper at launch).
  • More heavily discounted: Has been on the market for longer (launched in February 2018).

If the count of relative strengths (bullet points above) is taken as a measure, the 1DX Mark III emerges as the winner of the contest (12 : 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.

1DX Mark III 12:09 K-1 II

How about other alternatives? Do the specifications of the Canon 1D X Mark III and the Pentax K-1 II 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 incomplete and does no justice, for example, to the way the 1DX Mark III or the K-1 II perform in practice. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.

Expert reviews

This is why expert reviews are important. 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.

Review Scores
  Camera
Model
cam
era
  labs  
dp
re
  view  
e
photo
  zine  
ima
ging
resource
photo
graphy
  blog  
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Camera
Model
 
Canon 1D X Mark III+ +........ Jan 2020 6,499 iCanon 1D X Mark III
 
Pentax K-1 II..79/1004.5/54.5/54.5/5 Feb 2018 1,999 iPentax K-1 II
 
Canon 1D X Mark II..89/1004.5/55/54.5/5 Feb 2016 5,999iCanon 1D X Mark II
 
Canon 1D C.......... Apr 2012 14,999iCanon 1D C
 
Canon 5D Mark III+ +82/1004.5/55/54.5/5 Mar 2012 3,499iCanon 5D Mark III
 
Canon 6D+ +83/1004.5/54.5/54.5/5 Sep 2012 2,099iCanon 6D
 
Canon 1D X....4.5/54.5/54.5/5 Oct 2011 6,799iCanon 1D X
 
Canon 5D Mark II91/10079/1004/55/5.. Sep 2008 3,499iCanon 5D Mark II
 
Canon 1Ds Mark III..+ +4.5/5.... Aug 2007 7,999iCanon 1Ds Mark III
 
Canon 1Ds Mark II..+ +...... Sep 2004 7,999iCanon 1Ds Mark II
 
Nikon D6.......... Feb 2020 6,499 iNikon D6
 
Nikon D5..89/1004.5/55/55/5 Jan 2016 6,499iNikon D5
 
Panasonic S1R..89/1004.5/55/54.5/5 Feb 2019 3,699 iPanasonic S1R
 
Pentax K-1..84/1005/54.5/55/5 Feb 2016 1,799iPentax K-1
 
Sony A7R III+ +90/1004.5/55/55/5 Oct 2017 3,199iSony A7R III
 
Sony A99 II..85/1004.5/54.5/54.5/5 Sep 2016 3,199 iSony A99 II
 
Sony A850..75/100..4/54.5/5 Aug 2009 1,999iSony A850
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted 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 rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

Canon 1D X Mark III:
Check Amazon price
Pentax K-1 II:
Check Amazon price

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. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Canon 1D X Mark III vs Pentax K-1 II

    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 Specifications
    Camera Model Canon 1D X Mark III Pentax K-1 II
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Canon EF mount lenses Pentax K mount lenses
    Launch Date January 2020 February 2018
    Launch Price USD 6499 USD 1999
    Sensor Specs Canon 1D X Mark III Pentax K-1 II
    Sensor Technology CMOS CMOS
    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
    Crop Factor 1.0x 1.0x
    Sensor Resolution 20 Megapixels 36.2 Megapixels
    Image Resolution 5472 x 3648 pixels 7360 x 4912 pixels
    Pixel Pitch 6.57 μm 4.88 μm
    Pixel Density 2.31 MP/cm2 4.20 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 4K/60p Video 1080/60i Video
    ISO Setting 100-102400 ISO 100-819200 ISO
    ISO Boost 50-819200 ISO no Enhancement
    Image Processor DIGIC X PRIME IV
    Screen Specs Canon 1D X Mark III Pentax K-1 II
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.76x 0.70x
    Top-Level Screen Control Panel Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.2 inch 3.2 inch
    LCD Resolution 2100k dots 1037k dots
    LCD Attachment Fixed screen Fully flexible screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Canon 1D X Mark III Pentax K-1 II
    Autofocus System Phase-detect AF Phase-detect AF
    Manual Focusing AidNo Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/8000/s 1/8000/s
    Continuous Shooting 20 shutter flaps/s 4.4 shutter flaps/s
    Shutter Life Expectancy500 000 actuations300 000 actuations
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium CFexpress cards SDXC cards
    Second Storage Option Dual card slots Dual card slots
    Connectivity Specs Canon 1D X Mark III Pentax K-1 II
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector USB 3.1 USB 2.0
    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 no Bluetooth
    Geotagging GPS built-in GPS built-in
    Body Specs Canon 1D X Mark III Pentax K-1 II
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type LP-E19 D-LI90
    Battery Life (CIPA)2850 shots per charge670 shots per charge
    Body Dimensions 158 x 168 x 83 mm
    (6.2 x 6.6 x 3.3 in)
    137 x 110 x 86 mm
    (5.4 x 4.3 x 3.4 in)
    Camera Weight 1440 g (50.8 oz) 1010 g (35.6 oz)

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