Canon 1D X Mark III vs Pentax K-3
The Canon EOS-1D X Mark III and the Pentax K-3 are two digital cameras that were officially introduced, respectively, in January 2020 and October 2013. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (1DX Mark III) and an APS-C (K-3) sensor. The Canon has a resolution of 20 megapixels, whereas the Pentax provides 24.1 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? 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
The physical size and weight of the Canon 1D X Mark III and the Pentax K-3 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth dimensions are rounded to the nearest millimeter.
The K-3 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 is considerably smaller (51 percent) than the Canon 1D X Mark III. Moreover, the K-3 is substantially lighter (44 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 Canon LP-E19 battery, while the K-3 can take 560 images on a single charge of its Pentax 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, Pentax provides the D-BG5 vertical grip as an optional accessory (see here on ebay).
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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.
Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon 1D X Mark III | 158 mm | 168 mm | 83 mm | 1440 g | 2850 | Y | Jan 2020 | US$ 6 499 | amazon.com | |
2. | Pentax K-3 | 131 mm | 100 mm | 77 mm | 800 g | 560 | Y | Oct 2013 | US$ 1 299 | ebay.com | |
3. | Canon 1Ds Mark II | 156 mm | 158 mm | 80 mm | 1215 g | 1200 | Y | Sep 2004 | US$ 7 999 | ebay.com | |
4. | Canon 1Ds Mark III | 150 mm | 160 mm | 80 mm | 1385 g | 1800 | Y | Aug 2007 | US$ 7 999 | ebay.com | |
5. | Canon 1D C | 158 mm | 164 mm | 83 mm | 1545 g | 1120 | Y | Apr 2012 | US$ 14 999 | ebay.com | |
6. | Canon 1D X | 158 mm | 168 mm | 83 mm | 1551 g | 1120 | Y | Oct 2011 | US$ 6 799 | ebay.com | |
7. | Canon 1D X Mark II | 158 mm | 168 mm | 83 mm | 1530 g | 1210 | Y | Feb 2016 | US$ 5 999 | ebay.com | |
8. | Canon 5D Mark II | 152 mm | 114 mm | 75 mm | 850 g | 850 | Y | Sep 2008 | US$ 3 499 | ebay.com | |
9. | Canon 5D Mark III | 152 mm | 116 mm | 76 mm | 950 g | 950 | Y | Mar 2012 | US$ 3 499 | ebay.com | |
10. | Canon 6D | 145 mm | 111 mm | 71 mm | 770 g | 1090 | Y | Sep 2012 | US$ 2 099 | ebay.com | |
11. | Canon R3 | 150 mm | 143 mm | 87 mm | 1015 g | 760 | Y | Sep 2021 | US$ 5 999 | amazon.com | |
12. | Nikon D6 | 160 mm | 163 mm | 92 mm | 1270 g | 3580 | Y | Feb 2020 | US$ 6 499 | amazon.com | |
13. | Nikon D7100 | 136 mm | 107 mm | 76 mm | 765 g | 950 | Y | Feb 2013 | US$ 1 199 | ebay.com | |
14. | Pentax K-3 II | 131 mm | 100 mm | 77 mm | 800 g | 720 | Y | Apr 2015 | US$ 1 099 | ebay.com | |
15. | Pentax K-5 II | 131 mm | 97 mm | 73 mm | 760 g | 740 | Y | Sep 2012 | US$ 1 099 | ebay.com | |
16. | Pentax KP | 132 mm | 101 mm | 76 mm | 703 g | 390 | Y | Jan 2017 | US$ 1 099 | ebay.com | |
17. | Sony A77 | 143 mm | 104 mm | 81 mm | 732 g | 470 | Y | Aug 2011 | US$ 1 399 | ebay.com | |
Note: 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 K-3 was launched at a markedly lower price (by 80 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 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon 1D X Mark III features a full frame sensor and the Pentax K-3 an APS-C sensor. The sensor area in the K-3 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 offers a higher resolution of 24.1 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 3.90μm versus 6.57μm for the 1DX Mark III). Moreover, it should be noted that the 1DX Mark III is much more recent (by 6 years and 3 months) than the K-3, and its sensor will 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-3 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 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the K-3 for good quality output (200 dots per inch) amounts to 30.1 x 20 inches or 76.4 x 50.8 cm, for very good quality (250 dpi) 24.1 x 16 inches or 61.1 x 40.6 cm, and for excellent quality (300 dpi) 20.1 x 13.3 inches or 50.9 x 33.9 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.
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 are ISO 100 to ISO 51200 (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.
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 review, the 1DX Mark III provides substantially higher image quality than the K-3, with an overall score that is 11 points higher. This advantage is based on 0.5 bits higher color depth, 1.1 EV in additional dynamic range, and 1.4 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.
Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon 1D X Mark III | Full Frame | 20.0 | 5472 | 3648 | 4K/60p | 24.2 | 14.5 | 3248 | 91 | |
2. | Pentax K-3 | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.7 | 13.4 | 1216 | 80 | |
3. | Canon 1Ds Mark II | Full Frame | 16.6 | 4992 | 3328 | none | 23.3 | 11.3 | 1480 | 74 | |
4. | Canon 1Ds Mark III | Full Frame | 21.0 | 5616 | 3744 | none | 24.0 | 12.0 | 1663 | 80 | |
5. | Canon 1D C | Full Frame | 17.9 | 5184 | 3456 | 4K/24p | 24.3 | 13.0 | 2155 | 85 | |
6. | Canon 1D X | Full Frame | 17.9 | 5184 | 3456 | 1080/30p | 23.8 | 11.8 | 2786 | 82 | |
7. | Canon 1D X Mark II | Full Frame | 20.0 | 5472 | 3648 | 4K/60p | 24.1 | 13.5 | 3207 | 88 | |
8. | Canon 5D Mark II | Full Frame | 21.0 | 5616 | 3744 | 1080/30p | 23.7 | 11.9 | 1815 | 79 | |
9. | Canon 5D Mark III | Full Frame | 22.1 | 5760 | 3840 | 1080/30p | 24.0 | 11.7 | 2293 | 81 | |
10. | Canon 6D | Full Frame | 20.0 | 5472 | 3648 | 1080/30p | 23.8 | 12.1 | 2340 | 82 | |
11. | Canon R3 | Full Frame | 24.0 | 6000 | 4000 | 6K/60p | 25.0 | 14.7 | 4086 | 96 | |
12. | Nikon D6 | Full Frame | 20.7 | 5568 | 3712 | 4K/30p | 25.3 | 14.3 | 2886 | 95 | |
13. | Nikon D7100 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 24.2 | 13.7 | 1256 | 83 | |
14. | Pentax K-3 II | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.6 | 13.6 | 1106 | 80 | |
15. | Pentax K-5 II | APS-C | 16.1 | 4928 | 3264 | 1080/25p | 23.8 | 14.1 | 1235 | 82 | |
16. | Pentax KP | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.9 | 13.2 | 1699 | 81 | |
17. | Sony A77 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 24.0 | 13.2 | 801 | 78 | |
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. 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 higher video resolution than the K-3. 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 variety of features. The 1DX Mark III and the K-3 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 (0.76x vs 0.63x), 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-3 along with similar information for a selection of comparators.
Camera Model |
Viewfinder (Type or 000 dots) |
Control Panel (yes/no) |
LCD Specifications (inch/000 dots) |
LCD Attach- ment |
Touch Screen (yes/no) |
Max Shutter Speed * |
Max Shutter Flaps * |
Built-in Flash (yes/no) |
Built-in Image Stab |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon 1D X Mark III | optical | Y | 3.2 / 2100 | fixed | Y | 1/8000s | 20.0/s | n | n | |
2. | Pentax K-3 | optical | Y | 3.2 / 1037 | fixed | n | 1/8000s | 8.3/s | Y | Y | |
3. | Canon 1Ds Mark II | optical | Y | 2.0 / 230 | fixed | n | 1/8000s | 4.0/s | n | n | |
4. | Canon 1Ds Mark III | optical | Y | 3.0 / 230 | fixed | n | 1/8000s | 5.0/s | n | n | |
5. | Canon 1D C | optical | Y | 3.2 / 1040 | fixed | n | 1/8000s | 14.0/s | n | n | |
6. | Canon 1D X | optical | Y | 3.2 / 1040 | fixed | n | 1/8000s | 14.0/s | n | n | |
7. | Canon 1D X Mark II | optical | Y | 3.2 / 1620 | fixed | Y | 1/8000s | 16.0/s | n | n | |
8. | Canon 5D Mark II | optical | Y | 3.0 / 920 | fixed | n | 1/8000s | 3.9/s | n | n | |
9. | Canon 5D Mark III | optical | Y | 3.2 / 1040 | fixed | n | 1/8000s | 6.0/s | n | n | |
10. | Canon 6D | optical | Y | 3.0 / 1040 | fixed | n | 1/4000s | 4.5/s | n | n | |
11. | Canon R3 | 5760 | Y | 3.2 / 4150 | swivel | Y | 1/8000s | 12.0/s | n | Y | |
12. | Nikon D6 | optical | Y | 3.2 / 2359 | fixed | Y | 1/8000s | 14.0/s | n | n | |
13. | Nikon D7100 | optical | Y | 3.2 / 1229 | fixed | n | 1/8000s | 6.0/s | Y | n | |
14. | Pentax K-3 II | optical | Y | 3.2 / 1037 | fixed | n | 1/8000s | 8.3/s | n | Y | |
15. | Pentax K-5 II | optical | Y | 3.0 / 921 | fixed | n | 1/8000s | 7.0/s | Y | Y | |
16. | Pentax KP | optical | n | 3.0 / 921 | tilting | n | 1/6000s | 7.0/s | Y | Y | |
17. | Sony A77 | 2359 | Y | 3.0 / 921 | full-flex | n | 1/8000s | 12.0/s | Y | Y | |
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one. |
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-3 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-3 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 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-3 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Camera Model |
Hotshoe Port |
Internal Mic / Speaker |
Microphone Port |
Headphone Port |
HDMI Port |
USB Port |
WiFi Support |
NFC Support |
Bluetooth Support |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon 1D X Mark III | Y | mono / mono | Y | Y | mini | 3.1 | Y | - | Y | |
2. | Pentax K-3 | Y | mono / mono | Y | Y | mini | 3.0 | - | - | - | |
3. | Canon 1Ds Mark II | Y | - / - | - | - | - | 2.0 | - | - | - | |
4. | Canon 1Ds Mark III | Y | mono / - | - | - | - | 2.0 | - | - | - | |
5. | Canon 1D C | Y | mono / mono | Y | Y | mini | 2.0 | - | - | - | |
6. | Canon 1D X | Y | mono / - | Y | - | mini | 2.0 | - | - | - | |
7. | Canon 1D X Mark II | Y | mono / mono | Y | Y | mini | 3.0 | - | - | - | |
8. | Canon 5D Mark II | Y | mono / mono | Y | - | mini | 2.0 | - | - | - | |
9. | Canon 5D Mark III | Y | mono / mono | Y | Y | mini | 2.0 | - | - | - | |
10. | Canon 6D | Y | mono / mono | Y | - | mini | 2.0 | Y | - | - | |
11. | Canon R3 | Y | stereo / mono | Y | Y | micro | 3.2 | Y | - | Y | |
12. | Nikon D6 | Y | stereo / mono | Y | Y | mini | 3.1 | Y | - | Y | |
13. | Nikon D7100 | Y | stereo / mono | Y | Y | mini | 2.0 | - | - | - | |
14. | Pentax K-3 II | Y | mono / mono | Y | Y | mini | 3.0 | - | - | - | |
15. | Pentax K-5 II | Y | stereo / mono | Y | - | mini | 2.0 | - | - | - | |
16. | Pentax KP | Y | stereo / mono | Y | - | - | 2.0 | Y | - | - | |
17. | Sony A77 | Y | stereo / mono | Y | - | mini | 2.0 | - | - | - |
It is notable that the 1DX Mark III offers wifi support, while the K-3 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.
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 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 K-3 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the K-3 was succeeded by the Pentax K-3 II. Further information on the features and operation of the 1DX Mark III and K-3 can be found, respectively, in the Canon 1D X Mark III Manual (free pdf) or the online Pentax K-3 Manual.
Review summary
So what is the bottom line? Which of the two cameras – the Canon 1D X Mark III or the Pentax K-3 – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.
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: Scores substantially higher (11 points) in the DXO overall assessment.
- More dynamic range: Captures a larger spectrum of light and dark details (1.1 EV of extra DR).
- Better low-light sensitivity: Requires less light for good images (1.4 stops ISO advantage).
- 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 0.63x).
- 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 8.3 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 560) on a single battery charge.
- Easier geotagging: Features an internal GPS sensor to log localization data.
- 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.
- More modern: Reflects 6 years and 3 months of technical progress since the K-3 launch.
Advantages of the Pentax K-3:
- More detail: Has more megapixels (24.1 vs 20MP), which boosts linear resolution by 10%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- More compact: Is smaller (131x100mm vs 158x168mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 640g or 44 percent) and is thus easier to take along.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- More affordable: Was introduced into a lower priced category (80 percent cheaper at launch).
- More heavily discounted: Has been around for much longer (launched in October 2013).
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 (16 : 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 Mark III and the Pentax K-3 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 the spec-sheets of cameras can offer a general idea of their imaging potential, it says little about, for example, the shooting experience and imaging performance of the 1DX Mark III and the K-3 in practical situations. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.
Expert reviews
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 (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.
Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon 1D X Mark III | .. | + + | 5/5 | .. | 4.5/5 | 4/5 | Jan 2020 | US$ 6 499 | amazon.com | |
2. | Pentax K-3 | 4/5 | .. | .. | 83/100 | 5/5 | 5/5 | Oct 2013 | US$ 1 299 | ebay.com | |
3. | Canon 1Ds Mark II | .. | .. | .. | + + | .. | .. | Sep 2004 | US$ 7 999 | ebay.com | |
4. | Canon 1Ds Mark III | .. | .. | .. | + + | 4.5/5 | .. | Aug 2007 | US$ 7 999 | ebay.com | |
5. | Canon 1D C | .. | .. | .. | .. | .. | .. | Apr 2012 | US$ 14 999 | ebay.com | |
6. | Canon 1D X | 5/5 | .. | .. | .. | 4.5/5 | 4.5/5 | Oct 2011 | US$ 6 799 | ebay.com | |
7. | Canon 1D X Mark II | .. | .. | 4.5/5 | 89/100 | 4.5/5 | 4.5/5 | Feb 2016 | US$ 5 999 | ebay.com | |
8. | Canon 5D Mark II | 4/5 | 91/100 | .. | 79/100 | 4/5 | .. | Sep 2008 | US$ 3 499 | ebay.com | |
9. | Canon 5D Mark III | .. | + + | .. | 82/100 | 4.5/5 | 4.5/5 | Mar 2012 | US$ 3 499 | ebay.com | |
10. | Canon 6D | 5/5 | + + | .. | 83/100 | 4.5/5 | 4.5/5 | Sep 2012 | US$ 2 099 | ebay.com | |
11. | Canon R3 | 5/5 | o | 4.5/5 | .. | 5/5 | 4.5/5 | Sep 2021 | US$ 5 999 | amazon.com | |
12. | Nikon D6 | .. | .. | 4/5 | .. | 4.5/5 | 4.5/5 | Feb 2020 | US$ 6 499 | amazon.com | |
13. | Nikon D7100 | 5/5 | + + | .. | 85/100 | 4.5/5 | 4.5/5 | Feb 2013 | US$ 1 199 | ebay.com | |
14. | Pentax K-3 II | 4.5/5 | .. | .. | .. | 5/5 | 5/5 | Apr 2015 | US$ 1 099 | ebay.com | |
15. | Pentax K-5 II | 5/5 | .. | .. | 80/100 | 5/5 | 4.5/5 | Sep 2012 | US$ 1 099 | ebay.com | |
16. | Pentax KP | 4/5 | .. | 3/5 | 82/100 | 5/5 | 4.5/5 | Jan 2017 | US$ 1 099 | ebay.com | |
17. | Sony A77 | 5/5 | 91/100 | .. | 81/100 | .. | 5/5 | Aug 2011 | US$ 1 399 | ebay.com | |
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. 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.
- Canon 1D X Mark III vs Nikon D2Xs
- Canon 1D X Mark III vs Nikon Z7 II
- Canon 1D X Mark III vs Olympus E-M5 III
- Canon 1D X Mark III vs Olympus Stylus 1
- Canon 1D X Mark III vs Pentax K-1 II
- Canon 1D X Mark III vs Sony HX95
- Canon 40D vs Pentax K-3
- Canon D60 vs Pentax K-3
- Canon T2i vs Pentax K-3
- Hasselblad X1D II vs Pentax K-3
- Nikon Z7 II vs Pentax K-3
- Pentax K-3 vs Sony RX10 II
Specifications: Canon 1D X Mark III vs Pentax K-3
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 |
---|---|---|
Camera Type | Digital single lens reflex | Digital single lens reflex |
Camera Lens | Canon EF mount lenses | Pentax K mount lenses |
Launch Date | January 2020 | October 2013 |
Launch Price | USD 6,499 | USD 1,299 |
Sensor Specs | Canon 1D X Mark III | Pentax K-3 |
Sensor Technology | CMOS | CMOS |
Sensor Format | Full Frame Sensor | APS-C Sensor |
Sensor Size | 36.0 x 24.0 mm | 23.5 x 15.6 mm |
Sensor Area | 864 mm2 | 366.6 mm2 |
Sensor Diagonal | 43.3 mm | 28.2 mm |
Crop Factor | 1.0x | 1.5x |
Sensor Resolution | 20 Megapixels | 24.1 Megapixels |
Image Resolution | 5472 x 3648 pixels | 6016 x 4000 pixels |
Pixel Pitch | 6.57 μm | 3.90 μm |
Pixel Density | 2.31 MP/cm2 | 6.56 MP/cm2 |
Moiré control | Anti-Alias filter | no AA filter |
Movie Capability | 4K/60p Video | 1080/60i Video |
ISO Setting | 100 - 102,400 ISO | 100 - 51,200 ISO |
ISO Boost | 50 - 819,200 ISO | no Enhancement |
Image Processor | DIGIC X | PRIME III |
DXO Sensor Quality (score) | 91 | 80 |
DXO Color Depth (bits) | 24.2 | 23.7 |
DXO Dynamic Range (EV) | 14.5 | 13.4 |
DXO Low Light (ISO) | 3248 | 1216 |
Screen Specs | Canon 1D X Mark III | Pentax K-3 |
Viewfinder Type | Optical viewfinder | Optical viewfinder |
Viewfinder Field of View | 100% | 100% |
Viewfinder Magnification | 0.76x | 0.63x |
Top-Level Screen | Control Panel | Control Panel |
LCD Framing | Live View | Live View |
Rear LCD Size | 3.2inch | 3.2inch |
LCD Resolution | 2100k dots | 1037k dots |
LCD Attachment | Fixed screen | Fixed screen |
Touch Input | Touchscreen | no Touchscreen |
Shooting Specs | Canon 1D X Mark III | Pentax K-3 |
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 | 8.3 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 | Built-in Flash |
Storage Medium | CFexB cards | SDXC cards |
Single or Dual Card Slots | Dual card slots | Dual card slots |
Connectivity Specs | Canon 1D X Mark III | Pentax K-3 |
External Flash | Hotshoe | Hotshoe |
Studio Flash | PC Sync socket | PC Sync socket |
USB Connector | USB 3.1 | USB 3.0 |
HDMI Port | mini HDMI | mini HDMI |
Microphone Port | External MIC port | External MIC port |
Headphone Socket | Headphone port | Headphone port |
Wifi Support | Wifi built-in | no Wifi |
Bluetooth Support | Bluetooth built-in | no Bluetooth |
Geotagging | GPS built-in | no internal GPS |
Body Specs | Canon 1D X Mark III | Pentax K-3 |
Environmental Sealing | Weathersealed body | Weathersealed body |
Battery Type | Canon LP-E19 | Pentax D-LI90 |
Battery Life (CIPA) | 2850 shots per charge | 560 shots per charge |
Body Dimensions |
158 x 168 x 83 mm (6.2 x 6.6 x 3.3 in) |
131 x 100 x 77 mm (5.2 x 3.9 x 3.0 in) |
Camera Weight | 1440 g (50.8 oz) | 800 g (28.2 oz) |
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