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Nikon D810 vs Pentax K-5

The Nikon D810 and the Pentax K-5 are two digital cameras that were announced, respectively, in June 2014 and September 2010. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (D810) and an APS-C (K-5) sensor. The Nikon has a resolution of 36.2 megapixels, whereas the Pentax provides 16.1 MP.

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

Headline Specifications
Nikon D810   Pentax K-5
Nikon D810 Pentax K-5
Digital single lens reflex Digital single lens reflex
Nikon F mount lenses Pentax K mount lenses
36.2 MP, Full Frame Sensor 16.1 MP, APS-C Sensor
1080/60p Video 1080/25p Video
ISO 64-12800 (32-51200) ISO 100-12800 (80-51200)
Optical viewfinder Optical viewfinder
3.2" LCD, 1229k dots 3.0" LCD, 921k dots
Fixed screen (not touch-sensitive) Fixed screen (not touch-sensitive)
5 shutter flaps per second 7 shutter flaps per second
Lens stabilization onlyIn-body stabilization
Weathersealed bodyWeathersealed body
1200 shots per battery charge740 shots per battery charge
146 x 123 x 82 mm, 980 g 131 x 97 x 73 mm, 760 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D810 and the Pentax K-5? 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 Nikon D810 and the Pentax K-5 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth measures are rounded to the nearest millimeter.

Size Nikon D810 vs Pentax K-5
Compare D810 versus K-5 top
Comparison D810 or K-5 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax K-5 is notably smaller (29 percent) than the Nikon D810. Moreover, the K-5 is markedly lighter (22 percent) than the D810. 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 D810 gets 1200 shots out of its EN-EL15 battery, while the K-5 can take 740 images on a single charge of its D-LI90 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)
Camera
Model
 
Nikon D810» 5.7 in 4.8 in 3.2 in 34.6 oz 1200 Y Jun 2014 3,299- i Nikon D810
 
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
 
Canon 5DS« » 6.0 in 4.6 in 3.0 in 32.8 oz 700 Y Feb 2015 3,699 i i Canon 5DS
 
Nikon D7500« » 5.4 in 4.1 in 2.9 in 25.4 oz 950 Y Apr 2017 1,299 i i Nikon D7500
 
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 D4S« » 6.3 in 6.2 in 3.6 in 47.6 oz 3020 Y Feb 2014 6,499- i Nikon D4S
 
Nikon D750« » 5.6 in 4.4 in 3.1 in 26.5 oz 1230 Y Sep 2014 2,299 i i Nikon D750
 
Nikon Df« » 5.7 in 4.3 in 2.6 in 26.8 oz 1400 Y Nov 2013 2,749 i i Nikon Df
 
Nikon D610« » 5.6 in 4.4 in 3.2 in 30.0 oz 900 Y Oct 2013 1,999 i i Nikon D610
 
Nikon D600« » 5.6 in 4.4 in 3.2 in 30.0 oz 900 Y Sep 2012 2,099- i Nikon D600
 
Nikon D800« » 5.7 in 4.8 in 3.2 in 35.3 oz 900 Y Feb 2012 2,999- i Nikon D800
 
Nikon D800E« » 5.7 in 4.8 in 3.2 in 35.3 oz 900 Y Feb 2012 3,299- i Nikon D800E
 
Nikon D700« » 5.8 in 4.8 in 3.0 in 37.9 oz 1000 Y Jul 2008 2,999- i Nikon D700
 
Olympus E-M5 II« » 4.9 in 3.3 in 1.8 in 16.5 oz 310 Y Feb 2015 1,099 i i Olympus E-M5 II
 
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-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
 
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
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 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-5 was launched at a markedly lower price (by 67 percent) than the D810, 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.

 

Sensor comparison

The size of the imaging sensor is a crucial determinant 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. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to 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 Nikon D810 features a full frame sensor and the Pentax K-5 an APS-C sensor. The sensor area in the K-5 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.

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

Nikon D810 and Pentax K-5 sensor measures

With 36.2MP, the D810 offers a higher resolution than the K-5 (16.1MP), but the D810 nevertheless has marginally larger individual pixels (pixel pitch of 4.88μm versus 4.81μm for the K-5) due to its larger sensor. Moreover, the D810 is a much more recent model (by 3 years and 9 months) than the K-5, 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 D810 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Nikon D810 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the D810 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 Pentax K-5 are 24.6 x 16.3 inch or 62.6 x 41.5 cm for good quality, 19.7 x 13.1 inch or 50.1 x 33.2 cm for very good quality, and 16.4 x 10.9 inch or 41.7 x 27.6 cm for excellent quality prints.

The Nikon D810 has a native sensitivity range from ISO 64 to ISO 12800, which can be extended to ISO 32-51200. The corresponding ISO settings for the Pentax K-5 are ISO 100 to ISO 12800, with the possibility to increase the ISO range to 80-51200.

D810 versus K-5 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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"). Of the two cameras under review, the D810 provides substantially higher image quality than the K-5, with an overall score that is 15 points higher. This advantage is based on 2 bits higher color depth, 0.7 EV in additional dynamic range, and 1.3 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
 
Nikon D810» Full Frame 36.2 7360 49121080/60p25.714.8285397Nikon D810
 
Pentax K-5« APS-C 16.1 4928 32641080/25p23.714.1116282Pentax K-5
 
Canon 5DS« » Full Frame 50.3 8688 57921080/30p24.712.4238187Canon 5DS
 
Nikon D7500« » APS-C 20.7 5568 37124K/30p24.314.0148386Nikon D7500
 
Nikon D850« » Full Frame 45.4 8256 55044K/30p26.414.82660100Nikon D850
 
Nikon D4S« » Full Frame 16.2 4928 32801080/60p24.413.3307489Nikon D4S
 
Nikon D750« » Full Frame 24.2 6016 40161080/60p24.814.5295693Nikon D750
 
Nikon Df« » Full Frame 16.2 4928 3280-24.613.1327989Nikon Df
 
Nikon D610« » Full Frame 24.2 6016 40161080/30p25.114.4292594Nikon D610
 
Nikon D600« » Full Frame 24.2 6016 40161080/30p25.114.2298094Nikon D600
 
Nikon D800« » Full Frame 36.2 7360 49121080/30p25.314.4285395Nikon D800
 
Nikon D800E« » Full Frame 36.2 7360 49121080/30p25.614.3297996Nikon D800E
 
Nikon D700« » Full Frame 12.1 4256 2832-23.512.2230380Nikon D700
 
Olympus E-M5 II« » Four Thirds 15.9 4608 34561080/60p23.012.584273Olympus E-M5 II
 
Pentax KP« » APS-C 24.1 6016 40001080/60i----Pentax KP
 
Pentax K-3 II« » APS-C 24.1 6016 40001080/60i23.613.6110680Pentax K-3 II
 
Pentax K-3« » APS-C 24.1 6016 40001080/60i23.713.4121680Pentax K-3

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 D810 provides a higher frame rate than the K-5. It can shoot video footage at 1080/60p, while the Pentax is limited to 1080/25p.

 

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The D810 and the K-5 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 D810 has a higher magnification than the one of the K-5 (0.70x vs 0.61x), 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 Nikon D810, the Pentax K-5, 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
 
Nikon D810»optical Y 3.2 1229 fixed n 1/8000s 5.0 Y n Nikon D810
 
Pentax K-5«optical Y 3.0 921 fixed n 1/8000s 7.0 Y Y Pentax K-5
 
Canon 5DS« »optical Y 3.2 1040 fixed n 1/8000s 5.0 n n Canon 5DS
 
Nikon D7500« »optical Y 3.2 922 tilting Y 1/8000s 8.0 Y n Nikon D7500
 
Nikon D850« »optical Y 3.2 2359 tilting Y 1/8000s 9.0 n n Nikon D850
 
Nikon D4S« »optical Y 3.2 921 fixed n 1/8000s 11.0 n n Nikon D4S
 
Nikon D750« »optical Y 3.2 1229 tilting n 1/4000s 6.0 Y n Nikon D750
 
Nikon Df« »optical Y 3.2 921 fixed n 1/4000s 5.5 n n Nikon Df
 
Nikon D610« »optical Y 3.2 921 fixed n 1/4000s 6.0 Y n Nikon D610
 
Nikon D600« »optical Y 3.0 921 fixed n 1/4000s 5.5 Y n Nikon D600
 
Nikon D800« »optical Y 3.2 921 fixed n 1/8000s 4.0 Y n Nikon D800
 
Nikon D800E« »optical Y 3.2 921 fixed n 1/8000s 4.0 Y n Nikon D800E
 
Nikon D700« »optical Y 3.0 922 fixed n 1/8000s 8.0 Y n Nikon D700
 
Olympus E-M5 II« »2360 n 3.0 1037 swivel Y 1/8000s 10.0 n Y Olympus E-M5 II
 
Pentax KP« »optical n 3.0 921 tilting n 1/6000s 7.0 Y Y Pentax KP
 
Pentax K-3 II« »optical Y 3.2 1037 fixed n 1/8000s 8.3 n Y Pentax K-3 II
 
Pentax K-3« »optical Y 3.2 1037 fixed n 1/8000s 8.3 Y Y Pentax K-3

One feature that differentiates the K-5 and the D810 is in-body image stabilization (IBIS). The K-5 reduces the risk of handshake-induced blur with all attached lenses, while the D810 has to rely on optical image stabilization in OIS-equipped lenses to achieve the same effect.

The Nikon D810 and the Pentax K-5 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 D810 writes its imaging data to Compact Flash or SDXC cards, while the K-5 uses SDXC cards. The D810 features dual card slots, which can be very useful in case a memory card fails. In contrast, the K-5 only has one slot. The D810 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the K-5 cannot take advantage of Ultra High Speed SD cards.

 

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 Nikon D810 and Pentax K-5 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
 
Nikon D810»YstereomonoYYmini3.0Y--Nikon D810
 
Pentax K-5«YstereomonoY-mini2.0---Pentax K-5
 
Canon 5DS« »YmonomonoY-mini3.0---Canon 5DS
 
Nikon D7500« »YstereomonoYYmini2.0Y-YNikon D7500
 
Nikon D850« »YstereomonoYYmini3.0YYYNikon D850
 
Nikon D4S« »YmonomonoYYmini2.0---Nikon D4S
 
Nikon D750« »YstereomonoYYmini2.0Y--Nikon D750
 
Nikon Df« »Y----mini2.0---Nikon Df
 
Nikon D610« »YmonomonoYYmini2.0---Nikon D610
 
Nikon D600« »YmonomonoYYmini2.0---Nikon D600
 
Nikon D800« »YmonomonoYYmini3.0---Nikon D800
 
Nikon D800E« »YmonomonoYYmini3.0---Nikon D800E
 
Nikon D700« »Y----mini2.0---Nikon D700
 
Olympus E-M5 II« »YstereomonoY-micro2.0Y--Olympus E-M5 II
 
Pentax KP« »YstereomonoY--2.0Y--Pentax KP
 
Pentax K-3 II« »YmonomonoYYmini3.0---Pentax K-3 II
 
Pentax K-3« »YmonomonoYYmini3.0---Pentax K-3

It is notable that the D810 has a headphone jack, which is not present on the K-5 This port makes it possible to attach external headphones and monitor the quality of sound during the recording process.

Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.

Both the D810 and the K-5 have been discontinued, but can regularly be found used on eBay. The K-5 was replaced by the Pentax K-5 II, while the D810 was followed by the Nikon D850. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Nikon and Pentax websites.


Review summary

So how do things add up? Which of the two cameras – the Nikon D810 or the Pentax K-5 – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.

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Arguments in favor of the Nikon D810:

  • More detail: Offers more megapixels (36.2 vs 16.1MP) with a 50% higher linear resolution.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (15 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (2 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (0.7 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (1.3 stops ISO advantage).
  • Better video: Provides higher movie framerates (1080/60p versus 1080/25p).
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.70x vs 0.61x).
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1229k vs 921k dots).
  • Longer lasting: Can take more shots (1200 versus 740) on a single battery charge.
  • Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
  • More modern: Reflects 3 years and 9 months of technical progress since the K-5 launch.

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Reasons to prefer the Pentax K-5:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Faster burst: Shoots at higher frequency (7 vs 5 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (131x97mm vs 146x123mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 220g or 22 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 (67 percent cheaper at launch).
  • More heavily discounted: Has been around for much longer (launched in September 2010).

If the count of relative strengths (bullet points above) is taken as a measure, the D810 is the clear winner of the match-up (17 : 7 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.

D810 17:07 K-5

How about other alternatives? Do the specifications of the Nikon D810 and the Pentax K-5 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 remains incomplete and does no justice, for example, to the way the D810 or the K-5 perform in practice. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews

This is why expert reviews are important. The following table reports the overall ratings of the cameras as published by some of the major 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
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Nikon D810»-86/1005/54.5/54.5/5 Jun 2014 3,299- i Nikon D810
 
Pentax K-5«-83/1005/54.5/54.5/5 Sep 2010 1,099- i Pentax K-5
 
Canon 5DS« »+83/1004.5/55/54.5/5 Feb 2015 3,699 i i Canon 5DS
 
Nikon D7500« »+ +86/1005/54.5/54.5/5 Apr 2017 1,299 i i Nikon D7500
 
Nikon D850« »+ +89/1004.5/55/55/5 Jul 2017 3,299 i i Nikon D850
 
Nikon D4S« »--4.5/55/54.5/5 Feb 2014 6,499- i Nikon D4S
 
Nikon D750« »+ +90/1004.5/55/54.5/5 Sep 2014 2,299 i i Nikon D750
 
Nikon Df« »-81/1004/54/54/5 Nov 2013 2,749 i i Nikon Df
 
Nikon D610« »+ +87/1004.5/54.5/54.5/5 Oct 2013 1,999 i i Nikon D610
 
Nikon D600« »+ +87/1005/54.5/54.5/5 Sep 2012 2,099- i Nikon D600
 
Nikon D800« »+ +82/1005/55/55/5 Feb 2012 2,999- i Nikon D800
 
Nikon D800E« »-84/1005/54.5/55/5 Feb 2012 3,299- i Nikon D800E
 
Nikon D700« »89/100+ +4.5/55/54.5/5 Jul 2008 2,999- i Nikon D700
 
Olympus E-M5 II« »+ +81/1005/54.5/55/5 Feb 2015 1,099 i i Olympus E-M5 II
 
Pentax KP« »-82/1005/5-4.5/5 Jan 2017 1,099 i i Pentax KP
 
Pentax K-3 II« »--5/54.5/55/5 Apr 2015 1,099 i i Pentax K-3 II
 
Pentax K-3« »-83/1005/54.5/55/5 Oct 2013 1,299- i Pentax K-3
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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, 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.

Nikon D810:
Check Ebay offers
Pentax K-5:
Check Ebay offers

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 use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Nikon D810 vs Pentax K-5

    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 Nikon D810 Pentax K-5
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Nikon F mount lenses Pentax K mount lenses
    Launch Date June 2014 September 2010
    Launch Price USD 3299 USD 1099
    Sensor Specs Nikon D810 Pentax K-5
    Sensor Technology CMOS CMOS
    Sensor Format Full Frame Sensor APS-C Sensor
    Sensor Size 35.9 x 24.0 mm 23.7 x 15.7 mm
    Sensor Area 861.6 mm2 372.09 mm2
    Sensor Diagonal 43.2 mm 28.4 mm
    Crop Factor 1.0x 1.5x
    Sensor Resolution 36.2 Megapixels 16.1 Megapixels
    Image Resolution 7360 x 4912 pixels 4928 x 3264 pixels
    Pixel Pitch 4.88 μm 4.81 μm
    Pixel Density 4.20 MP/cm2 4.32 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 1080/60p Video 1080/25p Video
    ISO Setting 64-12800 ISO 100-12800 ISO
    ISO Boost 32-51200 ISO 80-51200 ISO
    Image Processor EXPEED 4 PRIME II
    DXO Sensor Quality (score) 97 82
    DXO Color Depth (bits) 25.7 23.7
    DXO Dynamic Range (EV) 14.8 14.1
    DXO Low Light (ISO) 2853 1162
    Screen Specs Nikon D810 Pentax K-5
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.70x 0.61x
    Top-Level Screen Control Panel Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.2 inch 3.0 inch
    LCD Resolution 1229k dots 921k dots
    LCD Attachment Fixed screen Fixed screen
    Shooting Specs Nikon D810 Pentax K-5
    Autofocus System Phase-detect AF Phase-detect AF
    Continuous Shooting 5 shutter flaps/s 7 shutter flaps/s
    Shutter Life Expectancy200 000 actuations100 000 actuations
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Build-in Flash Build-in Flash
    Storage Medium CF or SDXC cards SDXC cards
    Second Storage Option Dual card slots Single card slot
    UHS card support UHS-I no
    Connectivity Specs Nikon D810 Pentax K-5
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector USB 3.0 USB 2.0
    HDMI Port mini HDMI mini HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket Headphone port no Headphone port
    Wifi Support Wifi built-in no Wifi
    Body Specs Nikon D810 Pentax K-5
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type EN-EL15 D-LI90
    Battery Life (CIPA)1200 shots per charge740 shots per charge
    Body Dimensions 146 x 123 x 82 mm
    (5.7 x 4.8 x 3.2 in)
    131 x 97 x 73 mm
    (5.2 x 3.8 x 2.9 in)
    Camera Weight 980 g (34.6 oz) 760 g (26.8 oz)

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