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Pentax K-1 versus Canon 6D Mark II

The Pentax K-1 and the Canon EOS 6D Mark II are two enthusiast cameras that were announced, respectively, in February 2016 and June 2017. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with a full frame sensor. The Pentax has a resolution of 36.2 megapixel, whereas the Canon provides 26 MP. Read on to find out how these two cameras compare with respect to their size, their sensors, their features, and their reception by expert reviewers.

Body comparison: Pentax K-1 vs Canon 6D Mark II

The side-by-side display below illustrates the physical size and weight of the Pentax K-1 and the Canon 6D Mark II. 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. You can also toggle the display to switch to a percentage comparison if you prefer that the measures are being expressed in relative terms (in this case, the camera on the left side – the K-1 – represents the basis for the calculations across all the size and weight measures).

Snapsort Pentax K-1 vs Canon 6D Mark II
Compare K-1 versus 6D Mark II top
Compare K-1 and 6D Mark II rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon 6D Mark II is notably larger (6 percent) than the Pentax K-1. However, the 6D Mark II is markedly lighter (24 percent) than the K-1. 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 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 K-1 gets 760 shots out of its D-LI90 battery, while the 6D Mark II can take 1200 images on a single charge of its LP-E6N power pack.

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, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons 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)
Used
Price
(USD)
Pentax K-1» 5.4 in 4.3 in 3.4 in 35.6 oz 760 Y Feb 2016 1,799- i
Canon 6D Mark II« 5.7 in 4.4 in 3.0 in 27.0 oz 1200 Y Jun 2017 1,999 i i
Canon 5D Mark IV« » 5.9 in 4.6 in 3.0 in 31.4 oz 900 Y Aug 2016 3,499 i i
Canon 80D« » 5.5 in 4.1 in 3.1 in 25.8 oz 960 Y Feb 2016 1,199 i i
Canon 1D X Mark II« » 6.2 in 6.6 in 3.3 in 54.0 oz 1210 Y Feb 2016 5,999 i i
Canon 6D« » 5.7 in 4.4 in 2.8 in 27.2 oz 1090 Y Sep 2012 2,099- i
Nikon D500« » 5.8 in 4.5 in 3.2 in 30.3 oz 1240 Y Jan 2016 1,999 i i
Olympus E-M1 II« » 5.3 in 3.6 in 2.6 in 20.2 oz 440 Y Sep 2016 1,999 i i
Panasonic GH5« » 5.5 in 3.9 in 3.4 in 25.6 oz 410 Y Jan 2017 1,999 i i
Pentax K-1 II« » 5.4 in 4.3 in 3.4 in 35.6 oz 670 Y Feb 2018 1,999 i i
Pentax K-3 II« » 5.2 in 3.9 in 3.0 in 28.2 oz 720 Y Apr 2015 1,099 i i
Sony A7R III« » 5.0 in 3.8 in 2.9 in 22.9 oz 650 Y Oct 2017 3,199 i i
Sony A99 II« » 5.6 in 4.1 in 3.0 in 29.9 oz 490 Y Sep 2016 3,199 i i
Sony A7R II« » 5.0 in 3.8 in 2.4 in 22.0 oz 290 Y Jun 2015 3,199- i
Sony A850« » 6.1 in 4.6 in 3.2 in 31.6 oz 880 Y Aug 2009 1,999- i

The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The K-1 was somewhat cheaper (by 10 percent) than the 6D Mark II at launch, but both cameras fall into the same price category. 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: Pentax K-1 vs Canon 6D Mark II

The size of the sensor inside a digital camera is one of the key determinants 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 and have a format factor (sometimes also referred to as "crop factor") of 1.0. Within the spectrum of camera sensors, this places the review cameras among the large-sensor cameras that aim for top notch image quality. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Pentax K-1 and Canon 6D Mark II sensor measures

While the two cameras under review share the same sensor size, the K-1 offers a higher resolution of 36.2 megapixel, compared with 26 MP of the 6D Mark II. This megapixel advantage translates into a 18 percent gain in linear resolution. On the other hand, these sensor specs imply that the K-1 has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 4.88μm versus 5.76μm for the 6D Mark II). Moreover, it should be noted that the 6D Mark II is a somewhat more recent model (by 1 year and 4 months) than the K-1, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of individual pixels. Coming back to sensor resolution, it should be mentioned that the K-1 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

Unlike the 6D Mark II, the K-1 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).

K-1 versus 6D Mark II MP

For most cameras, data on sensor performance has been reported by DXO Mark. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). Of the two cameras under review, the K-1 provides substantially higher image quality than the 6D Mark II, with an overall score that is 11 points higher. This advantage is based on 1 bits higher color depth, 2.7 EV in additional dynamic range, and 0.2 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.

Sensor Characteristics
  Camera Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Pentax K-1» Full Frame 36.2 7360 49121080/60i25.414.6328096
Canon 6D Mark II« Full Frame 26.0 6240 41601080/60p24.411.9286285
Canon 5D Mark IV« » Full Frame 30.1 6720 44804K/30p24.813.6299591
Canon 80D« » APS-C 24.0 6000 40001080/60p23.613.2113579
Canon 1D X Mark II« » Full Frame 20.0 5472 36484K/60p24.113.5320788
Canon 6D« » Full Frame 20.0 5472 36481080/30p23.812.1234082
Nikon D500« » APS-C 20.7 5568 37124K/30p24.014.0132483
Olympus E-M1 II« » Four Thirds 20.2 5184 38884K/30p23.712.8131280
Panasonic GH5« » Four Thirds 20.2 5184 38884K/60p23.913.080777
Pentax K-1 II« » Full Frame 36.2 7360 49121080/60i----
Pentax K-3 II« » APS-C 24.1 6016 40001080/60i23.613.6110680
Sony A7R III« » Full Frame 42.2 7952 53044K/30p26.014.73523100
Sony A99 II« » Full Frame 42.2 7952 53044K/30p25.413.4231792
Sony A7R II« » Full Frame 42.2 7952 53044K/30p26.013.9343498
Sony A850« » Full Frame 24.4 6048 4032-23.812.2141579

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 6D Mark II provides a faster frame rate than the K-1. It can shoot movie footage at 1080/60p, while the Pentax is limited to 1080/60i.

 

Feature comparison: Pentax K-1 vs Canon 6D Mark II

Apart from body and sensor, cameras can and do differ across a range of features. The K-1 and the 6D Mark 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 adjacent table lists some of the other core features of the Pentax K-1 and Canon 6D Mark II along with similar information for a selection of comparators. The full specs-sheets can be found in the camera manual or, for example, in the dpreview camera hub.

Core Features
  Camera Viewfinder
(Type or
'000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec))
Build-in
Flash
(yes/no)
Build-in
Image
Stab
Pentax K-1»optical Y 3.2 1037 full-flex n 8000 4.4 n Y
Canon 6D Mark II«optical Y 3.0 1040 swivel Y 4000 6.5 n n
Canon 5D Mark IV« »optical Y 3.2 1620 fixed Y 8000 7.0 n n
Canon 80D« »optical Y 3.0 1040 swivel Y 8000 7.0 Y n
Canon 1D X Mark II« »optical Y 3.2 1620 fixed Y 8000 16.0 n n
Canon 6D« »optical Y 3.0 1040 fixed n 4000 4.5 n n
Nikon D500« »optical Y 3.2 2359 tilting Y 8000 10.0 n n
Olympus E-M1 II« »2360 n 3.0 1037 swivel Y 8000 18.0 n Y
Panasonic GH5« »3680 n 3.2 1620 swivel Y 8000 12.0 n Y
Pentax K-1 II« »optical Y 3.2 1037 full-flex n 8000 4.4 n Y
Pentax K-3 II« »optical Y 3.2 1037 fixed n 8000 8.3 n Y
Sony A7R III« »3686 n 3.0 1440 tilting Y 8000 10.0 n Y
Sony A99 II« »2400 Y 3.0 1229 full-flex n 8000 12.0 n Y
Sony A7R II« »2400 n 3.0 1229 tilting n 8000 5.0 n Y
Sony A850« »optical Y 3.0 922 fixed n 8000 3.0 n Y

The 6D Mark II is a current model that online retailers, such as amazon, will have in stock. In contrast, the K-1 has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the K-1 was succeeded by the Pentax K-1 II.

Review summary: Pentax K-1 vs Canon 6D Mark II

So what is the bottom line? Which of the two cameras – the Pentax K-1 or the Canon 6D Mark II – has the upper hand? The listing below highlights the relative strengths of the two models.

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Arguments in favor of the Pentax K-1:

  • More detail: Offers more megapixels (36.2 vs 26MP) with a 18% higher linear resolution.
  • 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 (11 points) in the DXO overall assessment.
  • More dynamic range: Captures a larger spectrum of light and dark details (2.7 EV of extra DR).
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • Faster shutter: Has higher mechanical shutter speed (8000/sec vs 4000/sec) to freeze action.
  • Sharper images: Has hand-shake reducing image stabilization build-in.
  • More heavily discounted: Has been on the market for longer (launched in February 2016).

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Advantages of the Canon EOS 6D Mark II:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Better video: Provides higher movie framerates (1080/60p versus 1080/60i).
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster burst: Shoots at higher frequency (6.5 vs 4.4 flaps/sec) to capture the decisive moment.
  • Less heavy: Has a lower weight (by 245g or 24 percent) and is thus easier to take along.
  • Longer lasting: Gets more shots (1200 versus 760) out of a single battery charge.
  • More modern: Was introduced somewhat (1 year and 4 months) more recently.

If the number of relative strengths (bullet points above) is taken as a guide, the K-1 emerges as the winner of the contest (9 : 7 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.

K-1 09:07 6D Mark II

In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it says nothing about, for example, the handling, responsiveness, and overall imaging quality of the K-1 and the 6D Mark II in practical situations. 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. This is where reviews by experts come in. The following table reports the overall rankings of the cameras as published by some of the major camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). The detailed reviews can be accessed by clicking on the site logo in the table header.

Review scores
  Camera cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Pentax K-1»-84/1005/54.5/55/5 Feb 2016 1,799- i
Canon 6D Mark II«Rec80/1004.5/54/54/5 Jun 2017 1,999 i i
Canon 5D Mark IV« »HiRec87/1004.5/55/54.5/5 Aug 2016 3,499 i i
Canon 80D« »HiRec84/1004.5/54.5/54.5/5 Feb 2016 1,199 i i
Canon 1D X Mark II« »-89/1004.5/55/54.5/5 Feb 2016 5,999 i i
Canon 6D« »HiRec83/1004.5/54.5/54.5/5 Sep 2012 2,099- i
Nikon D500« »HiRec91/1004.5/55/55/5 Jan 2016 1,999 i i
Olympus E-M1 II« »HiRec85/1004.5/55/54.5/5 Sep 2016 1,999 i i
Panasonic GH5« »HiRec85/1004.5/55/55/5 Jan 2017 1,999 i i
Pentax K-1 II« »-79/1004.5/5-4.5/5 Feb 2018 1,999 i i
Pentax K-3 II« »--5/54.5/55/5 Apr 2015 1,099 i i
Sony A7R III« »HiRec90/1004.5/55/55/5 Oct 2017 3,199 i i
Sony A99 II« »-85/1004.5/54.5/54.5/5 Sep 2016 3,199 i i
Sony A7R II« »HiRec90/1005/54.5/55/5 Jun 2015 3,199- i
Sony A850« »-75/100-4/54.5/5 Aug 2009 1,999- i

Care should be taken when interpreting the review scores above, though. The ratings are only valid when refering to cameras in the same category and of the same age. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. 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. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored. If the camera you are interested in is not available, kindly get in touch, and I will try to update the database with the necessary infos.

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