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Nikon D800 vs Pentax K-3 II

The Nikon D800 and the Pentax K-3 II are two digital cameras that were officially introduced, respectively, in February 2012 and April 2015. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (D800) and an APS-C (K-3 II) sensor. The Nikon has a resolution of 36.2 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
Nikon D800 VS Pentax K-3 II
Nikon D800 Pentax K-3 II
Digital single lens reflex Digital single lens reflex
Nikon F mount lenses Pentax K mount lenses
36.2 MP, Full Frame Sensor 24.1 MP, APS-C Sensor
1080/30p Video 1080/60i Video
ISO 100-6400 (50-25600) ISO 100-51200
Optical viewfinder Optical viewfinder
3.2" LCD, 921k dots 3.2" LCD, 1037k dots
Fixed screen (not touch-sensitive) Fixed screen (not touch-sensitive)
4 shutter flaps per second 8.3 shutter flaps per second
Lens stabilization onlyIn-body stabilization
Weathersealed bodyWeathersealed body
900 shots per battery charge720 shots per battery charge
146 x 123 x 82 mm, 1000 g 131 x 100 x 77 mm, 800 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D800 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

An illustration of the physical size and weight of the Nikon D800 and the Pentax K-3 II is provided 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 II can be obtained in two different colors (black, silver), while the D800 is only available in black.

Size Nikon D800 vs Pentax K-3 II
Compare D800 versus K-3 II top
Comparison D800 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 (27 percent) than the Nikon D800. Moreover, the K-3 II is markedly lighter (20 percent) than the D800. 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 D800 gets 900 shots out of its EN-EL15 battery, while the K-3 II can take 720 images on a single charge of its D-LI90 power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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)
Camera
Model
 
Nikon D800» 5.7 in 4.8 in 3.2 in 35.3 oz 900 Y Feb 2012 2,999iNikon D800
 
Pentax K-3 II« 5.2 in 3.9 in 3.0 in 28.2 oz 720 Y Apr 2015 1,099 iPentax K-3 II
 
Canon 5D Mark IV« » 5.9 in 4.6 in 3.0 in 31.4 oz 900 Y Aug 2016 3,499 iCanon 5D Mark IV
 
Canon 80D« » 5.5 in 4.1 in 3.1 in 25.8 oz 960 Y Feb 2016 1,199iCanon 80D
 
Canon 5D Mark III« » 6.0 in 4.6 in 3.0 in 33.5 oz 950 Y Mar 2012 3,499iCanon 5D Mark III
 
Nikon D850« » 5.7 in 4.9 in 3.1 in 35.5 oz 1840 Y Jul 2017 3,299 iNikon D850
 
Nikon D810« » 5.7 in 4.8 in 3.2 in 34.6 oz 1200 Y Jun 2014 3,299iNikon D810
 
Nikon Df« » 5.7 in 4.3 in 2.6 in 26.8 oz 1400 Y Nov 2013 2,749 iNikon Df
 
Nikon D610« » 5.6 in 4.4 in 3.2 in 30.0 oz 900 Y Oct 2013 1,999 iNikon D610
 
Nikon D4« » 6.3 in 6.2 in 3.6 in 47.3 oz 2600 Y Jan 2012 5,999iNikon D4
 
Nikon D600« » 5.6 in 4.4 in 3.2 in 30.0 oz 900 Y Sep 2012 2,099iNikon D600
 
Nikon D800E« » 5.7 in 4.8 in 3.2 in 35.3 oz 900 Y Feb 2012 3,299iNikon D800E
 
Nikon D700« » 5.8 in 4.8 in 3.0 in 37.9 oz 1000 Y Jul 2008 2,999iNikon D700
 
Pentax KP« » 5.2 in 4.0 in 3.0 in 24.8 oz 390 Y Jan 2017 1,099 iPentax KP
 
Pentax K-70« » 5.0 in 3.7 in 2.9 in 24.3 oz 410 Y Jun 2016 649 iPentax K-70
 
Pentax K-3« » 5.2 in 3.9 in 3.0 in 28.2 oz 560 Y Oct 2013 1,299iPentax K-3
 
Pentax K-5« » 5.2 in 3.8 in 2.9 in 26.8 oz 740 Y Sep 2010 1,099iPentax K-5
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 listed launch 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 63 percent) than the D800, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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. 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. 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 tend to be more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Nikon D800 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.

In terms of underlying technology, both cameras are build around CMOS sensors.

Nikon D800 and Pentax K-3 II sensor measures

With 36.2MP, the D800 offers a higher resolution than the K-3 II (24.1MP), but the D800 nevertheless has larger individual pixels (pixel pitch of 4.88μm versus 3.90μm for the K-3 II) due to its larger sensor. However, the K-3 II is a much more recent model (by 3 years and 2 months) than the D800, 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 II has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Nikon D800 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the D800 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-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 D800, 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 Nikon D800 has a native sensitivity range from ISO 100 to ISO 6400, which can be extended to ISO 50-25600. The corresponding ISO settings for the Pentax K-3 II are ISO 100 to ISO 51200 (no boost).

D800 versus K-3 II MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 D800 provides substantially higher image quality than the K-3 II, with an overall score that is 15 points higher. This advantage is based on 1.7 bits higher color depth, 0.8 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.

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 D800 Full Frame 36.2 7360 49121080/30p25.314.4285395Nikon D800
 
Pentax K-3 II APS-C 24.1 6016 40001080/60i23.613.6110680Pentax K-3 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 5D Mark III Full Frame 22.1 5760 38401080/30p24.011.7229381Canon 5D Mark III
 
Nikon D850 Full Frame 45.4 8256 55044K/30p26.414.82660100Nikon D850
 
Nikon D810 Full Frame 36.2 7360 49121080/60p25.714.8285397Nikon D810
 
Nikon Df Full Frame 16.2 4928 3280none24.613.1327989Nikon Df
 
Nikon D610 Full Frame 24.2 6016 40161080/30p25.114.4292594Nikon D610
 
Nikon D4 Full Frame 16.2 4928 32801080/30p24.713.1296589Nikon D4
 
Nikon D600 Full Frame 24.2 6016 40161080/30p25.114.2298094Nikon D600
 
Nikon D800E Full Frame 36.2 7360 49121080/30p25.614.3297996Nikon D800E
 
Nikon D700 Full Frame 12.1 4256 2832none23.512.2230380Nikon D700
 
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

Many modern cameras are not only capable of taking still images, but can also record movies. 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 D800. It can shoot movie footage at 1080/60i, while the Nikon is limited to 1080/30p.

 

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. The D800 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 D800 has a higher magnification than the one of the K-3 II (0.70x 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 Nikon D800, 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
 
Nikon D800optical Y 3.2 921 fixed n 1/8000s 4.0 Y n Nikon D800
 
Pentax K-3 IIoptical Y 3.2 1037 fixed n 1/8000s 8.3 n Y Pentax K-3 II
 
Canon 5D Mark IVoptical Y 3.2 1620 fixed Y 1/8000s 7.0 n n Canon 5D Mark IV
 
Canon 80Doptical Y 3.0 1040 swivel Y 1/8000s 7.0 Y n Canon 80D
 
Canon 5D Mark IIIoptical Y 3.2 1040 fixed n 1/8000s 6.0 n n Canon 5D Mark III
 
Nikon D850optical Y 3.2 2359 tilting Y 1/8000s 9.0 n n Nikon D850
 
Nikon D810optical Y 3.2 1229 fixed n 1/8000s 5.0 Y n Nikon D810
 
Nikon Dfoptical Y 3.2 921 fixed n 1/4000s 5.5 n n Nikon Df
 
Nikon D610optical Y 3.2 921 fixed n 1/4000s 6.0 Y n Nikon D610
 
Nikon D4optical Y 3.2 921 fixed n 1/8000s 11.0 n n Nikon D4
 
Nikon D600optical Y 3.0 921 fixed n 1/4000s 5.5 Y n Nikon D600
 
Nikon D800Eoptical Y 3.2 921 fixed n 1/8000s 4.0 Y n Nikon D800E
 
Nikon D700optical Y 3.0 922 fixed n 1/8000s 8.0 Y n Nikon D700
 
Pentax KPoptical n 3.0 921 tilting n 1/6000s 7.0 Y Y Pentax KP
 
Pentax K-70optical n 3.0 921 swivel n 1/6000s 6.0 Y Y Pentax K-70
 
Pentax K-3optical Y 3.2 1037 fixed n 1/8000s 8.3 Y Y Pentax K-3
 
Pentax K-5optical Y 3.0 921 fixed n 1/8000s 7.0 Y Y Pentax K-5

One difference between the cameras concerns the presence of an on-board flash. The D800 has one, while the K-3 II does not. While the built-in flash of the D800 is not very powerful, it can at times be useful as a fill-in light.

The Nikon D800 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 D800 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 Nikon D800 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
Port
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Nikon D800YmonomonoYYmini3.0---Nikon D800
 
Pentax K-3 IIYmonomonoYYmini3.0---Pentax K-3 II
 
Canon 5D Mark IVYmonomonoYYmini3.0YY-Canon 5D Mark IV
 
Canon 80DYstereomonoYYmini2.0YY-Canon 80D
 
Canon 5D Mark IIIYmonomonoYYmini2.0---Canon 5D Mark III
 
Nikon D850YstereomonoYYmini3.0YYYNikon D850
 
Nikon D810YstereomonoYYmini3.0Y--Nikon D810
 
Nikon DfYnonenone--mini2.0---Nikon Df
 
Nikon D610YmonomonoYYmini2.0---Nikon D610
 
Nikon D4YmonomonoYYmicro2.0---Nikon D4
 
Nikon D600YmonomonoYYmini2.0---Nikon D600
 
Nikon D800EYmonomonoYYmini3.0---Nikon D800E
 
Nikon D700Ynonenone--mini2.0---Nikon D700
 
Pentax KPYstereomonoY-none2.0Y--Pentax KP
 
Pentax K-70YstereomonoY-mini2.0Y--Pentax K-70
 
Pentax K-3YmonomonoYYmini3.0---Pentax K-3
 
Pentax K-5YstereomonoY-mini2.0---Pentax K-5

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.

The K-3 II is a recent model that features in the current product line-up of Pentax. In contrast, the D800 has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the D800 was succeeded by the Nikon D810. 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 what is the bottom line? Is there a clear favorite between the Nikon D800 and the Pentax K-3 II? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

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Reasons to prefer the Nikon D800:

  • More detail: Offers more megapixels (36.2 vs 24.1MP) with a 22% higher linear resolution.
  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Better image quality: Scores substantially higher (15 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (1.7 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (0.8 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (1.4 stops ISO advantage).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.70x vs 0.63x).
  • Longer lasting: Can take more shots (900 versus 720) on a single battery charge.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More heavily discounted: Has been available for much longer (launched in February 2012).

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Arguments in favor of 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.
  • Better video: Provides higher movie framerates (1080/60i versus 1080/30p).
  • More detailed LCD: Has a higher resolution rear screen (1037k vs 921k dots).
  • Faster burst: Shoots at higher frequency (8.3 vs 4 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (131x100mm vs 146x123mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 200g or 20 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 (63 percent cheaper at launch).
  • More modern: Reflects 3 years and 2 months of technical progress since the D800 launch.

If the count of relative strengths (bullet points above) is taken as a measure, the K-3 II comes out slightly ahead of the D800 (11 : 10 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. 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.

D800 10:11 K-3 II

How about other alternatives? Do the specifications of the Nikon D800 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 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 D800 and the K-3 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.

Expert reviews

This is where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular 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
cam
era
  labs  
dp
re
  view  
e
photo
  zine  
ima
ging
resource
photo
graphy
  blog  
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Camera
Model
 
Nikon D800+ +82/1005/55/55/5 Feb 2012 2,999iNikon D800
 
Pentax K-3 II....5/54.5/55/5 Apr 2015 1,099 iPentax K-3 II
 
Canon 5D Mark IV+ +87/1004.5/55/54.5/5 Aug 2016 3,499 iCanon 5D Mark IV
 
Canon 80D+ +84/1004.5/54.5/54.5/5 Feb 2016 1,199iCanon 80D
 
Canon 5D Mark III+ +82/1004.5/55/54.5/5 Mar 2012 3,499iCanon 5D Mark III
 
Nikon D850+ +89/1004.5/55/55/5 Jul 2017 3,299 iNikon D850
 
Nikon D810..86/1005/54.5/54.5/5 Jun 2014 3,299iNikon D810
 
Nikon Df..81/1004/54/54/5 Nov 2013 2,749 iNikon Df
 
Nikon D610+ +87/1004.5/54.5/54.5/5 Oct 2013 1,999 iNikon D610
 
Nikon D4....4.5/5..4.5/5 Jan 2012 5,999iNikon D4
 
Nikon D600+ +87/1005/54.5/54.5/5 Sep 2012 2,099iNikon D600
 
Nikon D800E..84/1005/54.5/55/5 Feb 2012 3,299iNikon D800E
 
Nikon D70089/100+ +4.5/55/54.5/5 Jul 2008 2,999iNikon D700
 
Pentax KP..82/1005/5..4.5/5 Jan 2017 1,099 iPentax KP
 
Pentax K-70..79/1004.5/54/54.5/5 Jun 2016 649 iPentax K-70
 
Pentax K-3..83/1005/54.5/55/5 Oct 2013 1,299iPentax K-3
 
Pentax K-5..83/1005/54.5/54.5/5 Sep 2010 1,099iPentax K-5
Notes: (+ +) 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. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Nikon D800:
Check Ebay offers
Pentax K-3 II:
Check Amazon price

Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just use the search menu 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: Nikon D800 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 Nikon D800 Pentax K-3 II
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Nikon F mount lenses Pentax K mount lenses
    Launch Date February 2012 April 2015
    Launch Price USD 2999 USD 1099
    Sensor Specs Nikon D800 Pentax K-3 II
    Sensor Technology CMOS CMOS
    Sensor Format Full Frame Sensor APS-C Sensor
    Sensor Size 35.9 x 24.0 mm 23.5 x 15.6 mm
    Sensor Area 861.6 mm2 366.6 mm2
    Sensor Diagonal 43.2 mm 28.2 mm
    Crop Factor 1.0x 1.5x
    Sensor Resolution 36.2 Megapixels 24.1 Megapixels
    Image Resolution 7360 x 4912 pixels 6016 x 4000 pixels
    Pixel Pitch 4.88 μm 3.90 μm
    Pixel Density 4.20 MP/cm2 6.56 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/30p Video 1080/60i Video
    ISO Setting 100-6400 ISO 100-51200 ISO
    ISO Boost 50-25600 ISO no Enhancement
    Image Processor EXPEED 3 PRIME III
    DXO Sensor Quality (score) 95 80
    DXO Color Depth (bits) 25.3 23.6
    DXO Dynamic Range (EV) 14.4 13.6
    DXO Low Light (ISO) 2853 1106
    Screen Specs Nikon D800 Pentax K-3 II
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.70x 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 921k dots 1037k dots
    LCD Attachment Fixed screen Fixed screen
    Shooting Specs Nikon D800 Pentax K-3 II
    Focus 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 4 shutter flaps/s 8.3 shutter flaps/s
    Shutter Life Expectancy200 000 actuations200 000 actuations
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Build-in 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 Nikon D800 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 Headphone port Headphone port
    Wifi Support no Wifi no Wifi
    Geotagging no internal GPS GPS built-in
    Body Specs Nikon D800 Pentax K-3 II
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type EN-EL15 D-LI90
    Battery Life (CIPA)900 shots per charge720 shots per charge
    Body Dimensions 146 x 123 x 82 mm
    (5.7 x 4.8 x 3.2 in)
    131 x 100 x 77 mm
    (5.2 x 3.9 x 3.0 in)
    Camera Weight 1000 g (35.3 oz) 800 g (28.2 oz)

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