Canon 6D Mark II versus Pentax K-3 II
The Canon EOS 6D Mark II and the Pentax K-3 II are two enthusiast cameras that were announced, respectively, in June 2017 and April 2015. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (6D Mark II) and an APS-C sensor. The Canon has a resolution of 26 megapixel, whereas the Pentax provides 24.1 MP.
The side-by-side display below illustrates the physical size and weight of the Canon 6D Mark II and the Pentax K-3 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 – the 6D Mark II – represents 100 percent across all the size and weight measures).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax K-3 II is notably smaller (18 percent) than the Canon 6D Mark II. However, the K-3 II is slightly heavier (5 percent) than the 6D Mark II. 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.
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 comparisons there.
|Camera Body Specifications
|Canon 6D Mark II (⇒ rgt)||144 mm||111 mm||75 mm||765 g||1200||YES||2017||1,999||latest||check|
|Pentax K-3 II (⇒ lft)||131 mm||100 mm||77 mm||800 g||720||YES||2015||1,099||latest||check|
|Canon 5D Mark IV (⇒ lft | rgt)||151 mm||116 mm||76 mm||890 g||900||YES||2016||3,499||latest||check|
|Canon 80D (⇒ lft | rgt)||139 mm||105 mm||79 mm||730 g||960||YES||2016||1,199||latest||check|
|Canon 1D X Mark II (⇒ lft | rgt)||158 mm||168 mm||83 mm||1530 g||1210||YES||2016||5,999||latest||check|
|Canon 6D (⇒ lft | rgt)||145 mm||111 mm||71 mm||770 g||1090||YES||2012||2,099||discont.||check|
|Canon 5D Mark III (⇒ lft | rgt)||152 mm||116 mm||76 mm||950 g||950||YES||2012||3,499||discont.||check|
|Canon 5D Mark II (⇒ lft | rgt)||152 mm||114 mm||75 mm||850 g||850||YES||2008||3,499||discont.||check|
|Nikon D500 (⇒ lft | rgt)||147 mm||115 mm||81 mm||860 g||1240||YES||2016||1,999||latest||check|
|Nikon D750 (⇒ lft | rgt)||141 mm||113 mm||78 mm||750 g||1230||YES||2014||2,299||latest||check|
|Nikon D610 (⇒ lft | rgt)||141 mm||113 mm||82 mm||850 g||900||YES||2013||1,999||latest||check|
|Nikon D600 (⇒ lft | rgt)||141 mm||113 mm||82 mm||850 g||900||YES||2012||2,099||discont.||check|
|Panasonic GX8 (⇒ lft | rgt)||133 mm||78 mm||63 mm||487 g||330||YES||2015||1,199||latest||check|
|Pentax KP (⇒ lft | rgt)||132 mm||101 mm||76 mm||703 g||390||YES||2017||1,099||latest||check|
|Pentax K-70 (⇒ lft | rgt)||126 mm||93 mm||74 mm||688 g||410||YES||2016||649||latest||check|
|Pentax K-3 (⇒ lft | rgt)||131 mm||100 mm||77 mm||800 g||560||YES||2013||1,299||discont.||check|
|Sony RX10 II (⇒ lft | rgt)||129 mm||88 mm||102 mm||813 g||400||YES||2015||1,299||discont.||check|
The listed prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The K-3 II was launched at a markedly lower price (by 45 percent) than the 6D Mark II, 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.
The size of the imaging sensor is a crucial determinant 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 6D Mark II features a full frame sensor and the Pentax K-3 II an APS-C sensor. The sensor area in the K-3 II is 57 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.
With 26MP, the 6D Mark II offers a slightly higher resolution than the K-3 II (24.1MP), but the 6D Mark II nevertheless has larger individual pixels (pixel pitch of 5.76μm versus 3.90μm for the K-3 II) due to its larger sensor. Moreover, the 6D Mark II is a somewhat more recent model (by 2 years and 2 months) than the K-3 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-3 II has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
Unlike the 6D Mark II, the K-3 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).
Consistent information on actual sensor performance is available from DXO Mark for most cameras. 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 6D Mark II has a notably higher overall DXO score than the K-3 II (overall score 5 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 0.8 bits higher color depth, 1.7 EV of lower 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.
|Canon 6D Mark II (⇒ rgt)||Full Frame||26.0||6240||4160||1080/60p||24.4||11.9||2862||85|
|Pentax K-3 II (⇒ lft)||APS-C||24.1||6016||4000||1080/60i||23.6||13.6||1106||80|
|Canon 5D Mark IV (⇒ lft | rgt)||Full Frame||30.1||6720||4480||4K/30p||24.8||13.6||2995||91|
|Canon 80D (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60p||23.6||13.2||1135||79|
|Canon 1D X Mark II (⇒ lft | rgt)||Full Frame||20.0||5472||3648||4K/60p||24.1||13.5||3207||88|
|Canon 6D (⇒ lft | rgt)||Full Frame||20.0||5472||3648||1080/30p||23.8||12.1||2340||82|
|Canon 5D Mark III (⇒ lft | rgt)||Full Frame||22.1||5760||3840||1080/30p||24||11.7||2293||81|
|Canon 5D Mark II (⇒ lft | rgt)||Full Frame||21.0||5616||3744||1080/30p||23.7||11.9||1815||79|
|Nikon D500 (⇒ lft | rgt)||APS-C||20.7||5568||3712||4K/30p||24.0||14.0||1324||83|
|Nikon D750 (⇒ lft | rgt)||Full Frame||24.2||6016||4016||1080/60p||24.8||14.5||2956||93|
|Nikon D610 (⇒ lft | rgt)||Full Frame||24.2||6016||4016||1080/30p||25.1||14.4||2925||94|
|Nikon D600 (⇒ lft | rgt)||Full Frame||24.2||6016||4016||1080/30p||25.1||14.2||2980||94|
|Panasonic GX8 (⇒ lft | rgt)||Four Thirds||20.2||5184||3888||4K/30p||23.5||12.6||806||75|
|Pentax KP (⇒ lft | rgt)||APS-C||24.1||6016||4000||1080/60i||-||-||-||-|
|Pentax K-70 (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60i||-||-||-||-|
|Pentax K-3 (⇒ lft | rgt)||APS-C||24.1||6016||4000||1080/60i||23.7||13.4||1216||80|
|Sony RX10 II (⇒ lft | rgt)||1-inch||20.0||5472||3648||4K/30p||23.0||12.6||531||70|
Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the 6D Mark II provides a higher frame rate than the K-3 II. It can shoot video footage at 1080/60p, while the Pentax is limited to 1080/60i.
Apart from body and sensor, cameras can and do differ across a variety of features. The 6D Mark II and the K-3 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 following table reports on some other key feature differences and similarities of the Canon 6D Mark II, the Pentax K-3 II, and comparable cameras. If you need more detail on the specs, you can find comprehensive listings, for example, in the dpreview camera hub.
|Canon 6D Mark II (⇒ rgt)||optical||YES||3.0||1040||swivel||YES||4000||6.5||no||no|
|Pentax K-3 II (⇒ lft)||optical||YES||3.2||1037||fixed||no||8000||8.3||no||YES|
|Canon 5D Mark IV (⇒ lft | rgt)||optical||YES||3.2||1620||fixed||YES||8000||7.0||no||no|
|Canon 80D (⇒ lft | rgt)||optical||YES||3.0||1040||swivel||YES||8000||7.0||12||no|
|Canon 1D X Mark II (⇒ lft | rgt)||optical||YES||3.2||1620||fixed||YES||8000||16.0||no||no|
|Canon 6D (⇒ lft | rgt)||optical||YES||3.0||1040||fixed||no||4000||4.5||no||no|
|Canon 5D Mark III (⇒ lft | rgt)||optical||YES||3.2||1040||fixed||no||8000||6.0||no||no|
|Canon 5D Mark II (⇒ lft | rgt)||optical||YES||3.0||920||fixed||no||8000||3.9||no||no|
|Nikon D500 (⇒ lft | rgt)||optical||YES||3.2||2359||tilting||YES||8000||10.0||no||no|
|Nikon D750 (⇒ lft | rgt)||optical||YES||3.2||1229||tilting||no||4000||6.0||12||no|
|Nikon D610 (⇒ lft | rgt)||optical||YES||3.2||921||fixed||no||4000||6.0||12||no|
|Nikon D600 (⇒ lft | rgt)||optical||YES||3.0||921||fixed||no||4000||5.5||12||no|
|Panasonic GX8 (⇒ lft | rgt)||2360||no||3.0||1040||swivel||YES||8000||10.0||no||YES|
|Pentax KP (⇒ lft | rgt)||optical||no||3.0||921||tilting||no||6000||7.0||YES||YES|
|Pentax K-70 (⇒ lft | rgt)||optical||no||3.0||921||swivel||no||6000||6.0||YES||YES|
|Pentax K-3 (⇒ lft | rgt)||optical||YES||3.2||1037||fixed||no||8000||8.3||13||YES|
|Sony RX10 II (⇒ lft | rgt)||2359||YES||3.0||1229||tilting||no||3200||14.0||10.2||YES|
Both the 6D Mark II and the K-3 II are current models that good online retailers will have in stock. You can check the latest prices, for example, at amazon. The K-3 II replaced the earlier Pentax K-3, while the 6D Mark II followed on from the Canon 6D.
So what is the bottom line? Is the Canon 6D Mark II better than the Pentax K-3 II or vice versa? Below is a summary of the relative strengths of each of the two contestants.
Arguments in favor of the Canon EOS 6D Mark II:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better image quality: Scores markedly higher (5 points) in the DXO overall assessment.
- Better low-light sensitivity: Requires less light for good images (1.4 stops ISO advantage).
- Better video: Provides higher movie framerates (1080/60p vs 1080/60i).
- More flexible LCD: Has swivel screen for odd-angle shots in portrait or landscape orientation.
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- Longer lasting: Can take more shots (1200 versus 720) on a single battery charge.
- More modern: Reflects 2 years and 2 months of technical progress since the K-3 II launch.
Reasons to prefer the Pentax K-3 II:
- 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 dynamic range: Captures a broader range of light and dark details (1.7 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.
- Faster burst: Shoots at higher frequency (8.3 vs 6.5 flaps/sec) to capture the decisive moment.
- More compact: Is smaller (131x100mm vs 144x111mm) and will fit more readily into a bag.
- Sharper images: Has stabilization technology build-in to reduce the impact of hand-shake.
- More affordable: Was introduced into a lower priced category (45 percent cheaper at launch).
- More heavily discounted: Has been around for much longer (launched in April 2015).
If the number of relative strengths (bullet points above) is taken as a guide, the K-3 II emerges as the winner of the match-up (10 : 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.
In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it remains incomplete and does no justice, for example, to the way the 6D Mark II or the K-3 II handle or perform in practice. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable. This is why expert reviews are important. The adjacent table relays the overall verdicts of several of the most popular camera review sites. The full reviews are available, respectively, at cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.
|Canon 6D Mark II (⇒ rgt)||Rec||80/100||4.5/5||4/5||4/5||2017||1,999||latest||check|
|Pentax K-3 II (⇒ lft)||-||-||5/5||4.5/5||5/5||2015||1,099||latest||check|
|Canon 5D Mark IV (⇒ lft | rgt)||HiRec||87/100 Gold||4.5/5||5/5||4.5/5||2016||3,499||latest||check|
|Canon 80D (⇒ lft | rgt)||HiRec||84/100 Silver||4.5/5||4.5/5||4.5/5||2016||1,199||latest||check|
|Canon 1D X Mark II (⇒ lft | rgt)||-||89/100 Gold||4.5/5||5/5||4.5/5||2016||5,999||latest||check|
|Canon 6D (⇒ lft | rgt)||HiRec||83/100 Silver||4.5/5||4.5/5||4.5/5||2012||2,099||discont.||check|
|Canon 5D Mark III (⇒ lft | rgt)||HiRec||82/100 Gold||4.5/5||5/5||4.5/5||2012||3,499||discont.||check|
|Canon 5D Mark II (⇒ lft | rgt)||91/100||79/100 HiRec||4/5||5/5||-||2008||3,499||discont.||check|
|Nikon D500 (⇒ lft | rgt)||HiRec||91/100 Gold||4.5/5||5/5||5/5||2016||1,999||latest||check|
|Nikon D750 (⇒ lft | rgt)||HiRec||90/100 Gold||4.5/5||5/5||4.5/5||2014||2,299||latest||check|
|Nikon D610 (⇒ lft | rgt)||HiRec||87/100 Gold||4.5/5||4.5/5||4.5/5||2013||1,999||latest||check|
|Nikon D600 (⇒ lft | rgt)||HiRec||87/100 Gold||5/5||4.5/5||4.5/5||2012||2,099||discont.||check|
|Panasonic GX8 (⇒ lft | rgt)||Rec||82/100 Silver||4.5/5||5/5||4.5/5||2015||1,199||latest||check|
|Pentax KP (⇒ lft | rgt)||-||82/100 Silver||5/5||-||4.5/5||2017||1,099||latest||check|
|Pentax K-70 (⇒ lft | rgt)||-||79/100 Silver||4.5/5||4/5||4.5/5||2016||649||latest||check|
|Pentax K-3 (⇒ lft | rgt)||-||83/100 Gold||5/5||4.5/5||5/5||2013||1,299||discont.||check|
|Sony RX10 II (⇒ lft | rgt)||HiRec||82/100 Gold||4.5/5||4.5/5||4/5||2015||1,299||discont.||check|
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. 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.
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. An an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool. If you do not see the camera that you are looking for, please send me an email, and I will try to locate and add the respective data to the application.
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