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Canon 5DS R vs Pentax K-3 II

The Canon EOS 5DS R and the Pentax K-3 II are two digital cameras that were announced, respectively, in February 2015 and April 2015. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (5DS R) and an APS-C (K-3 II) sensor. The Canon has a resolution of 50.3 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.

Headline Specifications
Canon 5DS R   Pentax K-3 II
Canon 5DS R Pentax K-3 II
Digital single lens reflex Digital single lens reflex
Canon EF mount lenses Pentax K mount lenses
50.3 MP, Full Frame Sensor 24.1 MP, APS-C Sensor
1080/30p Video 1080/60i Video
ISO 100-6400 (50-12800) ISO 100-51200
Optical viewfinder Optical viewfinder
3.2" LCD, 1040k dots 3.2" LCD, 1037k dots
Fixed screen (not touch-sensitive) Fixed screen (not touch-sensitive)
5 shutter flaps per second 8.3 shutter flaps per second
Lens stabilization onlyIn-body stabilization
Weathersealed bodyWeathersealed body
700 shots per battery charge720 shots per battery charge
152 x 116 x 76 mm, 930 g 131 x 100 x 77 mm, 800 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 5DS R and the Pentax K-3 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

The physical size and weight of the Canon 5DS R and the Pentax K-3 II 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 measures are rounded to the nearest millimeter.

The K-3 II can be obtained in two different colors (black, silver), while the 5DS R is only available in black.

Size Canon 5DS R vs Pentax K-3 II
Compare 5DS R versus K-3 II top
Comparison 5DS R or K-3 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-3 II is notably smaller (26 percent) than the Canon 5DS R. Moreover, the K-3 II is markedly lighter (14 percent) than the 5DS R. 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 5DS R gets 700 shots out of its LP-E6 battery, while the K-3 II can take 720 images on a single charge of its D-LI90 power pack.

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, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.

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)
Camera
Model
 
Canon 5DS R» 6.0 in 4.6 in 3.0 in 32.8 oz 700 Y Feb 2015 3,699 i i Canon 5DS R
 
Pentax K-3 II« 5.2 in 3.9 in 3.0 in 28.2 oz 720 Y Apr 2015 1,099 i i Pentax K-3 II
 
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 1D X Mark II
 
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 5D Mark IV
 
Canon 80D« » 5.5 in 4.1 in 3.1 in 25.8 oz 960 Y Feb 2016 1,199- i Canon 80D
 
Canon 5DS« » 6.0 in 4.6 in 3.0 in 32.8 oz 700 Y Feb 2015 3,699 i i Canon 5DS
 
Canon 5D Mark III« » 6.0 in 4.6 in 3.0 in 33.5 oz 950 Y Mar 2012 3,499- i Canon 5D Mark III
 
Canon 6D« » 5.7 in 4.4 in 2.8 in 27.2 oz 1090 Y Sep 2012 2,099- i Canon 6D
 
Canon 5D Mark II« » 6.0 in 4.5 in 3.0 in 30.0 oz 850 Y Sep 2008 3,499- i Canon 5D Mark II
 
Canon 5D« » 6.0 in 4.4 in 3.0 in 31.6 oz 400 Y Aug 2005 3,299- i Canon 5D
 
Nikon D850« » 5.7 in 4.9 in 3.1 in 35.5 oz 1840 Y Jul 2017 3,299 i i Nikon D850
 
Nikon D810« » 5.7 in 4.8 in 3.2 in 34.6 oz 1200 Y Jun 2014 3,299- i Nikon D810
 
Pentax KP« » 5.2 in 4.0 in 3.0 in 24.8 oz 390 Y Jan 2017 1,099 i i Pentax KP
 
Pentax K-70« » 5.0 in 3.7 in 2.9 in 24.3 oz 410 Y Jun 2016 649 i i Pentax K-70
 
Pentax K-3« » 5.2 in 3.9 in 3.0 in 28.2 oz 560 Y Oct 2013 1,299- i Pentax K-3
 
Pentax K-5« » 5.2 in 3.8 in 2.9 in 26.8 oz 740 Y Sep 2010 1,099- i Pentax K-5
 
Sony A99 II« » 5.6 in 4.1 in 3.0 in 29.9 oz 490 Y Sep 2016 3,199 i i Sony A99 II
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

Any camera decision will naturally be influenced heavily by the price. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The K-3 II was launched at a markedly lower price (by 70 percent) than the 5DS R, 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 imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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. 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 5DS R features a full frame sensor and the Pentax K-3 II an APS-C sensor. The sensor area in the K-3 II 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.

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

Canon 5DS R and Pentax K-3 II sensor measures

With 50.3MP, the 5DS R offers a higher resolution than the K-3 II (24.1MP), but the 5DS R nevertheless has larger individual pixels (pixel pitch of 4.14μm versus 3.90μm for the K-3 II) due to its larger sensor. It is noteworthy in this context that the two cameras were released in close succession, so that their sensors are from the same technological generation. Coming back to sensor resolution, it should be mentioned that neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.

The resolution advantage of the Canon 5DS R implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 5DS R for good quality output (200 dots per inch) amounts to 43.4 x 29 inch or 110.3 x 73.6 cm, for very good quality (250 dpi) 34.8 x 23.2 inch or 88.3 x 58.8 cm, and for excellent quality (300 dpi) 29 x 19.3 inch or 73.6 x 49 cm. The corresponding values for the Pentax K-3 II are 30.1 x 20 inch or 76.4 x 50.8 cm for good quality, 24.1 x 16 inch or 61.1 x 40.6 cm for very good quality, and 20.1 x 13.3 inch or 50.9 x 33.9 cm for excellent quality prints.

Unlike the 5DS R, 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).

The Canon EOS 5DS R has a native sensitivity range from ISO 100 to ISO 6400, which can be extended to ISO 50-12800. The corresponding ISO settings for the Pentax K-3 II are ISO 100 to ISO 51200 (no boost).

5DS R versus K-3 II MP

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 5DS R has a notably higher overall DXO score than the K-3 II (overall score 6 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 1 bits higher color depth, 1.2 EV of lower dynamic range, and 1.1 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar 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 5DS R» Full Frame 50.3 8688 57921080/30p24.612.4230886Canon 5DS R
 
Pentax K-3 II« APS-C 24.1 6016 40001080/60i23.613.6110680Pentax K-3 II
 
Canon 1D X Mark II« » Full Frame 20.0 5472 36484K/60p24.113.5320788Canon 1D X Mark II
 
Canon 5D Mark IV« » Full Frame 30.1 6720 44804K/30p24.813.6299591Canon 5D Mark IV
 
Canon 80D« » APS-C 24.0 6000 40001080/60p23.613.2113579Canon 80D
 
Canon 5DS« » Full Frame 50.3 8688 57921080/30p24.712.4238187Canon 5DS
 
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 5D Mark II« » Full Frame 21.0 5616 37441080/30p23.711.9181579Canon 5D Mark II
 
Canon 5D« » Full Frame 12.7 4368 2912-22.911.1136871Canon 5D
 
Nikon D850« » Full Frame 45.4 8256 55044K/30p26.414.82660100Nikon D850
 
Nikon D810« » Full Frame 36.2 7360 49121080/60p25.714.8285397Nikon D810
 
Pentax KP« » APS-C 24.1 6016 40001080/60i----Pentax KP
 
Pentax K-70« » APS-C 24.0 6000 40001080/60i----Pentax K-70
 
Pentax K-3« » APS-C 24.1 6016 40001080/60i23.713.4121680Pentax K-3
 
Pentax K-5« » APS-C 16.1 4928 32641080/25p23.714.1116282Pentax K-5
 
Sony A99 II« » Full Frame 42.2 7952 53044K/30p25.413.4231792Sony A99 II

Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the K-3 II provides a faster frame rate than the 5DS R. It can shoot movie footage at 1080/60i, while the Canon is limited to 1080/30p.

 

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. The 5DS R 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 viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the 5DS R has a higher magnification than the one of the K-3 II (0.71x vs 0.63x), 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 5DS R, the Pentax K-3 II, and comparable cameras.

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 5DS R»optical Y 3.2 1040 fixed n 1/8000s 5.0 n n Canon 5DS R
 
Pentax K-3 II«optical Y 3.2 1037 fixed n 1/8000s 8.3 n Y Pentax K-3 II
 
Canon 1D X Mark II« »optical Y 3.2 1620 fixed Y 1/8000s 16.0 n n Canon 1D X Mark II
 
Canon 5D Mark IV« »optical Y 3.2 1620 fixed Y 1/8000s 7.0 n n Canon 5D Mark IV
 
Canon 80D« »optical Y 3.0 1040 swivel Y 1/8000s 7.0 Y n Canon 80D
 
Canon 5DS« »optical Y 3.2 1040 fixed n 1/8000s 5.0 n n Canon 5DS
 
Canon 5D Mark III« »optical Y 3.2 1040 fixed n 1/8000s 6.0 n n Canon 5D Mark III
 
Canon 6D« »optical Y 3.0 1040 fixed n 1/4000s 4.5 n n Canon 6D
 
Canon 5D Mark II« »optical Y 3.0 920 fixed n 1/8000s 3.9 n n Canon 5D Mark II
 
Canon 5D« »optical Y 2.5 230 fixed n 1/8000s 3.0 n n Canon 5D
 
Nikon D850« »optical Y 3.2 2359 tilting Y 1/8000s 9.0 n n Nikon D850
 
Nikon D810« »optical Y 3.2 1229 fixed n 1/8000s 5.0 Y n Nikon D810
 
Pentax KP« »optical n 3.0 921 tilting n 1/6000s 7.0 Y Y Pentax KP
 
Pentax K-70« »optical n 3.0 921 swivel n 1/6000s 6.0 Y Y Pentax K-70
 
Pentax K-3« »optical Y 3.2 1037 fixed n 1/8000s 8.3 Y Y Pentax K-3
 
Pentax K-5« »optical Y 3.0 921 fixed n 1/8000s 7.0 Y Y Pentax K-5
 
Sony A99 II« »2400 Y 3.0 1229 full-flex n 1/8000s 12.0 n Y Sony A99 II

One feature that differentiates the K-3 II and the 5DS R is in-body image stabilization (IBIS). The K-3 II reduces the risk of handshake-induced blur with all attached lenses, while the 5DS R has to rely on optical image stabilization in OIS-equipped lenses to achieve the same effect.

The Canon 5DS R and the Pentax K-3 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 5DS R writes its imaging data to Compact Flash or SDXC cards, while the K-3 II uses SDXC cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

 

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 5DS R and Pentax K-3 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
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Canon 5DS R»YmonomonoY-mini3.0---Canon 5DS R
 
Pentax K-3 II«YmonomonoYYmini3.0---Pentax K-3 II
 
Canon 1D X Mark II« »YmonomonoYYmini3.0---Canon 1D X Mark II
 
Canon 5D Mark IV« »YmonomonoYYmini3.0YY-Canon 5D Mark IV
 
Canon 80D« »YstereomonoYYmini2.0YY-Canon 80D
 
Canon 5DS« »YmonomonoY-mini3.0---Canon 5DS
 
Canon 5D Mark III« »YmonomonoYYmini2.0---Canon 5D Mark III
 
Canon 6D« »YmonomonoY-mini2.0Y--Canon 6D
 
Canon 5D Mark II« »YmonomonoY-mini2.0---Canon 5D Mark II
 
Canon 5D« »Y-----2.0---Canon 5D
 
Nikon D850« »YstereomonoYYmini3.0YYYNikon D850
 
Nikon D810« »YstereomonoYYmini3.0Y--Nikon D810
 
Pentax KP« »YstereomonoY--2.0Y--Pentax KP
 
Pentax K-70« »YstereomonoY-mini2.0Y--Pentax K-70
 
Pentax K-3« »YmonomonoYYmini3.0---Pentax K-3
 
Pentax K-5« »YstereomonoY-mini2.0---Pentax K-5
 
Sony A99 II« »YstereomonoYYmicro2.0YYYSony A99 II

It is notable that the K-3 II has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The 5DS R lacks such a headphone port.

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 K-3 II has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

Both the 5DS R and the K-3 II are recent models that are part of the current product line-up. The K-3 II replaced the earlier Pentax K-3, while the 5DS R does not have a direct predecessor. 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 what is the bottom line? Is there a clear favorite between the Canon 5DS R and the Pentax K-3 II? Which camera is better? The listing below highlights the relative strengths of the two models.

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Arguments in favor of the Canon EOS 5DS R:

  • More detail: Offers more megapixels (50.3 vs 24.1MP) with a 45% higher linear resolution.
  • Better image quality: Scores markedly higher (6 points) in the DXO overall assessment.
  • Better low-light sensitivity: Requires less light for good images (1.1 stops ISO advantage).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.71x vs 0.63x).

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Reasons to prefer the Pentax K-3 II:

  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • More dynamic range: Captures a broader range of light and dark details (1.2 EV of extra DR).
  • Better video: Provides higher movie framerates (1080/60i versus 1080/30p).
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • Faster burst: Shoots at higher frequency (8.3 vs 5 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (131x100mm vs 152x116mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 130g or 14 percent) and is thus easier to take along.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • Easier geotagging: Features an internal GPS sensor to log localization data.
  • More affordable: Was introduced into a lower priced category (70 percent cheaper at launch).

If the count of relative strengths (bullet points above) is taken as a measure, the K-3 II is the clear winner of the contest (10 : 4 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision 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.

5DS R 04:10 K-3 II

How about other alternatives? Do the specifications of the Canon 5DS R and the Pentax K-3 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 partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the 5DS R or the K-3 II. 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 where reviews by experts come in. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Canon 5DS R»+83/1005/55/54.5/5 Feb 2015 3,699 i i Canon 5DS R
 
Pentax K-3 II«--5/54.5/55/5 Apr 2015 1,099 i i Pentax K-3 II
 
Canon 1D X Mark II« »-89/1004.5/55/54.5/5 Feb 2016 5,999 i i Canon 1D X Mark II
 
Canon 5D Mark IV« »+ +87/1004.5/55/54.5/5 Aug 2016 3,499 i i Canon 5D Mark IV
 
Canon 80D« »+ +84/1004.5/54.5/54.5/5 Feb 2016 1,199- i Canon 80D
 
Canon 5DS« »+83/1004.5/55/54.5/5 Feb 2015 3,699 i i Canon 5DS
 
Canon 5D Mark III« »+ +82/1004.5/55/54.5/5 Mar 2012 3,499- i Canon 5D Mark III
 
Canon 6D« »+ +83/1004.5/54.5/54.5/5 Sep 2012 2,099- i Canon 6D
 
Canon 5D Mark II« »91/10079/1004/55/5- Sep 2008 3,499- i Canon 5D Mark II
 
Canon 5D« »88/100+ +oo- Aug 2005 3,299- i Canon 5D
 
Nikon D850« »+ +89/1004.5/55/55/5 Jul 2017 3,299 i i Nikon D850
 
Nikon D810« »-86/1005/54.5/54.5/5 Jun 2014 3,299- i Nikon D810
 
Pentax KP« »-82/1005/5-4.5/5 Jan 2017 1,099 i i Pentax KP
 
Pentax K-70« »-79/1004.5/54/54.5/5 Jun 2016 649 i i Pentax K-70
 
Pentax K-3« »-83/1005/54.5/55/5 Oct 2013 1,299- i Pentax K-3
 
Pentax K-5« »-83/1005/54.5/54.5/5 Sep 2010 1,099- i Pentax K-5
 
Sony A99 II« »-85/1004.5/54.5/54.5/5 Sep 2016 3,199 i i Sony A99 II
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. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Canon 5DS R:
Check Amazon price
Pentax K-3 II:
Check Amazon price

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 a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications: Canon 5DS R vs Pentax K-3 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 5DS R Pentax K-3 II
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Canon EF mount lenses Pentax K mount lenses
    Launch Date February 2015 April 2015
    Launch Price USD 3699 USD 1099
    Sensor Specs Canon 5DS R Pentax K-3 II
    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 50.3 Megapixels 24.1 Megapixels
    Image Resolution 8688 x 5792 pixels 6016 x 4000 pixels
    Pixel Pitch 4.14 μm 3.90 μm
    Pixel Density 5.82 MP/cm2 6.56 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 1080/30p Video 1080/60i Video
    ISO Setting 100-6400 ISO 100-51200 ISO
    ISO Boost 50-12800 ISO no Enhancement
    Image Processor DIGIC 6 (Dual) PRIME III
    DXO Sensor Quality (score) 86 80
    DXO Color Depth (bits) 24.6 23.6
    DXO Dynamic Range (EV) 12.4 13.6
    DXO Low Light (ISO) 2308 1106
    Screen Specs Canon 5DS R Pentax K-3 II
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.71x 0.63x
    Top-Level Screen Control Panel Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.2 inch 3.2 inch
    LCD Resolution 1040k dots 1037k dots
    LCD Attachment Fixed screen Fixed screen
    Shooting Specs Canon 5DS R Pentax K-3 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 5 shutter flaps/s 8.3 shutter flaps/s
    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 CF or SDXC cards SDXC cards
    Second Storage Option Dual card slots Dual card slots
    UHS card support UHS-I UHS-I
    Connectivity Specs Canon 5DS R Pentax K-3 II
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector USB 3.0 USB 3.0
    HDMI Port mini HDMI mini HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi no Wifi
    Geotagging no internal GPS GPS built-in
    Body Specs Canon 5DS R Pentax K-3 II
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type LP-E6 D-LI90
    Battery Life (CIPA)700 shots per charge720 shots per charge
    Body Dimensions 152 x 116 x 76 mm
    (6.0 x 4.6 x 3.0 in)
    131 x 100 x 77 mm
    (5.2 x 3.9 x 3.0 in)
    Camera Weight 930 g (32.8 oz) 800 g (28.2 oz)

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