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Nikon D850 vs Pentax K-3 II

The Nikon D850 and the Pentax K-3 II are two digital cameras that were revealed to the public, respectively, in July 2017 and April 2015. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (D850) and an APS-C (K-3 II) sensor. The Nikon has a resolution of 45.4 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 D850
versus
Pentax K-3 II
Nikon D850   Pentax K-3 II
Digital single lens reflex Digital single lens reflex
Nikon F mount lenses Pentax K mount lenses
45.4 MP – Full Frame sensor 24.1 MP – APS-C sensor
4K/30p Video 1080/60i Video
ISO 64-25,600 (32 - 102,400) ISO 100-51,200
Optical viewfinder Optical viewfinder
3.2" LCD – 2359k dots 3.2" LCD – 1037k dots
Tilting touchscreen Fixed screen (not touch-sensitive)
9 shutter flaps per second 8.3 shutter flaps per second
Lens stabilization onlyIn-body stabilization
Weathersealed bodyWeathersealed body
1840 shots per battery charge720 shots per battery charge
146 x 124 x 79 mm, 1005 g 131 x 100 x 77 mm, 800 g
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Check D850 price at
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Check K-3 II offers at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D850 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.

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Body comparison

The side-by-side display below illustrates the physical size and weight of the Nikon D850 and the Pentax K-3 II. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. 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 D850 is only available in black.

Size Nikon D850 vs Pentax K-3 II
Compare D850 versus K-3 II top
Comparison D850 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 (28 percent) than the Nikon D850. Moreover, the K-3 II is markedly lighter (20 percent) than the D850. 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 D850 gets 1840 shots out of its Nikon EN-EL15a battery, while the K-3 II can take 720 images on a single charge of its Pentax D-LI90 power pack.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.

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Body Specifications
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
1.
 
Nikon D850 146 mm 124 mm 79 mm 1005 g 1840 Y Jul 2017 US$ 3 299 amazon.com
2.
 
Pentax K-3 II 131 mm 100 mm 77 mm 800 g 720 Y Apr 2015 US$ 1 099ebay.com
3.
 
Canon 5DS 152 mm 116 mm 76 mm 930 g 700 Y Feb 2015 US$ 3 699ebay.com
4.
 
Canon 5DS R 152 mm 116 mm 76 mm 930 g 700 Y Feb 2015 US$ 3 699ebay.com
5.
 
Nikon D5 160 mm 159 mm 92 mm 1415 g 3780 Y Jan 2016 US$ 6 499ebay.com
6.
 
Nikon D600 141 mm 113 mm 82 mm 850 g 900 Y Sep 2012 US$ 2 099ebay.com
7.
 
Nikon D610 141 mm 113 mm 82 mm 850 g 900 Y Oct 2013 US$ 1 999ebay.com
8.
 
Nikon D800 146 mm 123 mm 82 mm 1000 g 900 Y Feb 2012 US$ 2 999ebay.com
9.
 
Nikon D800E 146 mm 123 mm 82 mm 1000 g 900 Y Feb 2012 US$ 3 299ebay.com
10.
 
Nikon D810 146 mm 123 mm 82 mm 980 g 1200 Y Jun 2014 US$ 3 299ebay.com
11.
 
Nikon D7200 136 mm 107 mm 76 mm 765 g 1110 Y Mar 2015 US$ 1 199ebay.com
12.
 
Nikon Df 144 mm 110 mm 67 mm 760 g 1400 Y Nov 2013 US$ 2 749ebay.com
13.
 
Pentax K-3 131 mm 100 mm 77 mm 800 g 560 Y Oct 2013 US$ 1 299ebay.com
14.
 
Pentax K-3 III 135 mm 104 mm 74 mm 820 g 800 Y Mar 2021 US$ 1 999 amazon.com
15.
 
Pentax K-5 II 131 mm 97 mm 73 mm 760 g 740 Y Sep 2012 US$ 1 099ebay.com
16.
 
Pentax K-S2 123 mm 91 mm 73 mm 678 g 410 Y Feb 2015 US$ 749ebay.com
17.
 
Sony A99 II 143 mm 104 mm 76 mm 849 g 490 Y Sep 2016 US$ 3 199ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The K-3 II was launched at a markedly lower price (by 67 percent) than the D850, 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 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 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. 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 Nikon D850 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.

Nikon D850 and Pentax K-3 II sensor measures

With 45.4MP, the D850 offers a higher resolution than the K-3 II (24.1MP), but the D850 nevertheless has larger individual pixels (pixel pitch of 4.35μm versus 3.90μm for the K-3 II) due to its larger sensor. Moreover, the D850 is a much more recent model (by 2 years and 3 months) than the K-3 II, 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 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 Nikon D850 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the D850 for good quality output (200 dots per inch) amounts to 41.3 x 27.5 inches or 104.9 x 69.9 cm, for very good quality (250 dpi) 33 x 22 inches or 83.9 x 55.9 cm, and for excellent quality (300 dpi) 27.5 x 18.3 inches or 69.9 x 46.6 cm. The corresponding values for the Pentax K-3 II are 30.1 x 20 inches or 76.4 x 50.8 cm for good quality, 24.1 x 16 inches or 61.1 x 40.6 cm for very good quality, and 20.1 x 13.3 inches or 50.9 x 33.9 cm for excellent quality prints.

Unlike the D850, 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 D850 has a native sensitivity range from ISO 64 to ISO 25600, which can be extended to ISO 32-102400. The corresponding ISO settings for the Pentax K-3 II are ISO 100 to ISO 51200 (no boost).

In terms of underlying technology, the D850 is build around a BSI-CMOS sensor, while the K-3 II uses a CMOS imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

D850 versus K-3 II MP

Consistent information on actual sensor performance is available from DXO Mark for many 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 D850 provides substantially higher image quality than the K-3 II, with an overall score that is 20 points higher. This advantage is based on 2.8 bits higher color depth, 1.2 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.

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Sensor Characteristics
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Nikon D850 Full Frame 45.4 8256 55044K/30p26.414.82660100
2.
 
Pentax K-3 II APS-C 24.1 6016 40001080/60i23.613.6110680
3.
 
Canon 5DS Full Frame 50.3 8688 57921080/30p24.712.4238187
4.
 
Canon 5DS R Full Frame 50.3 8688 57921080/30p24.612.4230886
5.
 
Nikon D5 Full Frame 20.7 5588 37124K/30p25.112.3234388
6.
 
Nikon D600 Full Frame 24.2 6016 40161080/30p25.114.2298094
7.
 
Nikon D610 Full Frame 24.2 6016 40161080/30p25.114.4292594
8.
 
Nikon D800 Full Frame 36.2 7360 49121080/30p25.314.4285395
9.
 
Nikon D800E Full Frame 36.2 7360 49121080/30p25.614.3297996
10.
 
Nikon D810 Full Frame 36.2 7360 49121080/60p25.714.8285397
11.
 
Nikon D7200 APS-C 24.0 6000 40001080/60p24.514.6133387
12.
 
Nikon Df Full Frame 16.2 4928 3280none24.613.1327989
13.
 
Pentax K-3 APS-C 24.1 6016 40001080/60i23.713.4121680
14.
 
Pentax K-3 III APS-C 25.6 6192 41284K/30p24.213.7208385
15.
 
Pentax K-5 II APS-C 16.1 4928 32641080/25p23.814.1123582
16.
 
Pentax K-S2 APS-C 20.0 5472 36481080/30p23.612.9151479
17.
 
Sony A99 II Full Frame 42.2 7952 53044K/30p25.413.4231792
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the D850 provides a higher video resolution than the K-3 II. It can shoot video footage at 4K/30p, while the Pentax is limited to 1080/60i.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The D850 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 D850 has a higher magnification than the one of the K-3 II (0.75x vs 0.63x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Nikon D850 and Pentax K-3 II in connection with corresponding information for a sample of similar cameras.

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Core Features
  empty Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Nikon D850optical Y3.2 / 2359 tilting Y 1/8000s 9.0/s n n
2.
 
Pentax K-3 IIoptical Y3.2 / 1037 fixed n 1/8000s 8.3/s n Y
3.
 
Canon 5DSoptical Y3.2 / 1040 fixed n 1/8000s 5.0/s n n
4.
 
Canon 5DS Roptical Y3.2 / 1040 fixed n 1/8000s 5.0/s n n
5.
 
Nikon D5optical Y3.2 / 2359 fixed Y 1/8000s 14.0/s n n
6.
 
Nikon D600optical Y3.0 / 921 fixed n 1/4000s 5.5/s Y n
7.
 
Nikon D610optical Y3.2 / 921 fixed n 1/4000s 6.0/s Y n
8.
 
Nikon D800optical Y3.2 / 921 fixed n 1/8000s 4.0/s Y n
9.
 
Nikon D800Eoptical Y3.2 / 921 fixed n 1/8000s 4.0/s Y n
10.
 
Nikon D810optical Y3.2 / 1229 fixed n 1/8000s 5.0/s Y n
11.
 
Nikon D7200optical Y3.2 / 1229 fixed n 1/8000s 6.0/s Y n
12.
 
Nikon Dfoptical Y3.2 / 921 fixed n 1/4000s 5.5/s n n
13.
 
Pentax K-3optical Y3.2 / 1037 fixed n 1/8000s 8.3/s Y Y
14.
 
Pentax K-3 IIIoptical Y3.2 / 1620 fixed Y 1/8000s 12.0/s n Y
15.
 
Pentax K-5 IIoptical Y3.0 / 921 fixed n 1/8000s 7.0/s Y Y
16.
 
Pentax K-S2optical n3.0 / 921 swivel n 1/6000s 5.4/s Y Y
17.
 
Sony A99 II2400 Y3.0 / 1229 full-flex n 1/8000s 12.0/s n Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The D850 has a touchscreen, while the K-3 II has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The Nikon D850 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 D850 writes its imaging data to SDXC or XQD 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. The D850 supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the K-3 II can use UHS-I cards (up to 104 MB/s).

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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 D850 and Pentax K-3 II and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Nikon D850Ystereo / monoYYmini3.0YYY
2.
 
Pentax K-3 IIYmono / monoYYmini3.0---
3.
 
Canon 5DSYmono / monoY-mini3.0---
4.
 
Canon 5DS RYmono / monoY-mini3.0---
5.
 
Nikon D5Ystereo / monoYYmini3.0---
6.
 
Nikon D600Ymono / monoYYmini2.0---
7.
 
Nikon D610Ymono / monoYYmini2.0---
8.
 
Nikon D800Ymono / monoYYmini3.0---
9.
 
Nikon D800EYmono / monoYYmini3.0---
10.
 
Nikon D810Ystereo / monoYYmini3.0Y--
11.
 
Nikon D7200Ystereo / monoYYmini2.0YY-
12.
 
Nikon DfY- / ---mini2.0---
13.
 
Pentax K-3Ymono / monoYYmini3.0---
14.
 
Pentax K-3 IIIYstereo / monoYYmicro3.2Y-Y
15.
 
Pentax K-5 IIYstereo / monoY-mini2.0---
16.
 
Pentax K-S2Ymono / monoY-micro2.0YY-
17.
 
Sony A99 IIYstereo / monoYYmicro2.0YYY

It is notable that the D850 offers wifi support, while the K-3 II does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

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 D850 is a recent model that features in the current product line-up of Nikon. In contrast, the K-3 II has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the K-3 II was succeeded by the Pentax K-3 III. Further information on the features and operation of the D850 and K-3 II can be found, respectively, in the Nikon D850 Manual (free pdf) or the online Pentax K-3 II Manual.

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Review summary

So what is the bottom line? Which of the two cameras – the Nikon D850 or the Pentax K-3 II – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

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Advantages of the Nikon D850:

  • More detail: Offers more megapixels (45.4 vs 24.1MP) with a 37% higher linear resolution.
  • Better image quality: Scores substantially higher (20 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (2.8 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (1.2 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (1.3 stops ISO advantage).
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60i).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.75x vs 0.63x).
  • More detailed LCD: Has a higher resolution rear screen (2359k vs 1037k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Longer lasting: Can take more shots (1840 versus 720) on a single battery charge.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More modern: Reflects 2 years and 3 months of technical progress since the K-3 II launch.

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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 compact: Is smaller (131x100mm vs 146x124mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 205g 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 (67 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 D850 is the clear winner of the match-up (16 : 7 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 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.

D850 16:07 K-3 II

How about other alternatives? Do the specifications of the Nikon D850 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 D850 and the K-3 II in practical situations. 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 adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). 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.

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Expert Camera Reviews
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Nikon D8504.5/5+ +5/589/1004.5/55/5 Jul 2017 US$ 3 299 amazon.com
2.
 
Pentax K-3 II4.5/5......5/55/5 Apr 2015 US$ 1 099ebay.com
3.
 
Canon 5DS..+..83/1004.5/54.5/5 Feb 2015 US$ 3 699ebay.com
4.
 
Canon 5DS R5/5+..83/1005/54.5/5 Feb 2015 US$ 3 699ebay.com
5.
 
Nikon D5....4/589/1004.5/55/5 Jan 2016 US$ 6 499ebay.com
6.
 
Nikon D6004/5+ +..87/1005/54.5/5 Sep 2012 US$ 2 099ebay.com
7.
 
Nikon D6104/5+ +..87/1004.5/54.5/5 Oct 2013 US$ 1 999ebay.com
8.
 
Nikon D8005/5+ +..82/1005/55/5 Feb 2012 US$ 2 999ebay.com
9.
 
Nikon D800E......84/1005/55/5 Feb 2012 US$ 3 299ebay.com
10.
 
Nikon D8105/5..5/586/1005/54.5/5 Jun 2014 US$ 3 299ebay.com
11.
 
Nikon D72004/5+ +..84/1004.5/54.5/5 Mar 2015 US$ 1 199ebay.com
12.
 
Nikon Df4/5....81/1004/54/5 Nov 2013 US$ 2 749ebay.com
13.
 
Pentax K-34/5....83/1005/55/5 Oct 2013 US$ 1 299ebay.com
14.
 
Pentax K-3 III4/5..3/5..4.5/5.. Mar 2021 US$ 1 999 amazon.com
15.
 
Pentax K-5 II5/5....80/1005/54.5/5 Sep 2012 US$ 1 099ebay.com
16.
 
Pentax K-S24.5/5......5/54.5/5 Feb 2015 US$ 749ebay.com
17.
 
Sony A99 II....4.5/585/1004.5/54.5/5 Sep 2016 US$ 3 199ebay.com
Note: (+ +) 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 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.

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

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    Specifications: Nikon D850 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 D850 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 July 2017 April 2015
    Launch Price USD 3,299 USD 1,099
    Sensor Specs Nikon D850 Pentax K-3 II
    Sensor Technology BSI-CMOS CMOS
    Sensor Format Full Frame Sensor APS-C Sensor
    Sensor Size 35.9 x 23.9 mm 23.5 x 15.6 mm
    Sensor Area 858.01 mm2 366.6 mm2
    Sensor Diagonal 43.1 mm 28.2 mm
    Crop Factor 1.0x 1.5x
    Sensor Resolution 45.4 Megapixels 24.1 Megapixels
    Image Resolution 8256 x 5504 pixels 6016 x 4000 pixels
    Pixel Pitch 4.35 μm 3.90 μm
    Pixel Density 5.30 MP/cm2 6.56 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 4K/30p Video 1080/60i Video
    ISO Setting 64 - 25,600 ISO 100 - 51,200 ISO
    ISO Boost 32 - 102,400 ISO no Enhancement
    Image Processor EXPEED 5 PRIME III
    DXO Sensor Quality (score) 100 80
    DXO Color Depth (bits) 26.4 23.6
    DXO Dynamic Range (EV) 14.8 13.6
    DXO Low Light (ISO) 2660 1106
    Screen Specs Nikon D850 Pentax K-3 II
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.75x 0.63x
    Top-Level Screen Control Panel Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.2inch 3.2inch
    LCD Resolution 2359k dots 1037k dots
    LCD Attachment Tilting screen Fixed screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Nikon D850 Pentax K-3 II
    Focus System Phase-detect AF Phase-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/8000s
    Continuous Shooting 9 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 no On-Board Flash no On-Board Flash
    Storage Medium SDXC or XQD cards SDXC cards
    Single or Dual Card Slots Dual card slots Dual card slots
    UHS card support UHS-II UHS-I
    Connectivity Specs Nikon D850 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 Wifi built-in no Wifi
    Near-Field Communication NFC built-in no NFC
    Bluetooth Support Bluetooth built-in no Bluetooth
    Geotagging no internal GPS GPS built-in
    Body Specs Nikon D850 Pentax K-3 II
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Nikon EN-EL15a Pentax D-LI90
    Battery Life (CIPA)1840 shots per charge720 shots per charge
    Body Dimensions 146 x 124 x 79 mm
    (5.7 x 4.9 x 3.1 in)
    131 x 100 x 77 mm
    (5.2 x 3.9 x 3.0 in)
    Camera Weight 1005 g (35.5 oz) 800 g (28.2 oz)
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