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Nikon Z7 II vs Pentax K-3

The Nikon Z7 II and the Pentax K-3 are two enthusiast cameras that were officially introduced, respectively, in October 2020 and October 2013. The Z7 II is a mirrorless interchangeable lens camera, while the K-3 is a DSLR. The cameras are based on a full frame (Z7 II) and an APS-C (K-3) 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 Z7 II
versus
Pentax K-3
Nikon Z7 II   Pentax K-3
Mirrorless system camera Digital single lens reflex
Nikon Z mount lenses Pentax K mount lenses
45.4 MP – Full Frame sensor 24.1 MP – APS-C sensor
4K/60p Video 1080/60i Video
ISO 64-25,600 (32 - 102,400) ISO 100-51,200
Electronic viewfinder (3690k dots) Optical viewfinder
3.2" LCD – 2100k dots 3.2" LCD – 1037k dots
Tilting touchscreen Fixed screen (not touch-sensitive)
10 shutter flaps per second 8.3 shutter flaps per second
In-body stabilizationIn-body stabilization
Weathersealed bodyWeathersealed body
420 shots per battery charge560 shots per battery charge
134 x 101 x 70 mm, 705 g 131 x 100 x 77 mm, 800 g
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Check Z7 II price at
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Check K-3 offers at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon Z7 II and the Pentax K-3? 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

An illustration of the physical size and weight of the Nikon Z7 II and the Pentax K-3 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.

The K-3 can be obtained in two different colors (black, silver), while the Z7 II is only available in black.

Size Nikon Z7 II vs Pentax K-3
Compare Z7 II versus K-3 top
Comparison Z7 II or K-3 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 is somewhat smaller (3 percent) than the Nikon Z7 II. However, the K-3 is markedly heavier (13 percent) than the Z7 II. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. Hence, you might want to study 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 Z7 II gets 420 shots out of its Nikon EN-EL15c battery, while the K-3 can take 560 images on a single charge of its Pentax D-LI90 power pack. The power pack in the Z7 II can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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 (USD)
Street
Price
1.
 
Nikon Z7 II 134 mm 101 mm 70 mm 705 g 420 Y Oct 2020 2,999 amazon.com
2.
 
Pentax K-3 131 mm 100 mm 77 mm 800 g 560 Y Oct 2013 1,299ebay.com
3.
 
Canon R5 138 mm 98 mm 88 mm 738 g 320 Y Jul 2020 3,899 amazon.com
4.
 
Canon R6 138 mm 98 mm 88 mm 680 g 360 Y Jul 2020 2,499 amazon.com
5.
 
Nikon D7100 136 mm 107 mm 76 mm 765 g 950 Y Feb 2013 1,199ebay.com
6.
 
Nikon Z6 134 mm 101 mm 67 mm 675 g 310 Y Aug 2018 1,999ebay.com
7.
 
Nikon Z6 II 134 mm 101 mm 70 mm 705 g 410 Y Oct 2020 1,999 amazon.com
8.
 
Nikon Z7 134 mm 101 mm 67 mm 675 g 330 Y Aug 2018 3,399ebay.com
9.
 
Nikon Z9 149 mm 150 mm 91 mm 1340 g 740 Y Oct 2021 5,499 amazon.com
10.
 
Pentax K-3 II 131 mm 100 mm 77 mm 800 g 720 Y Apr 2015 1,099ebay.com
11.
 
Pentax K-5 II 131 mm 97 mm 73 mm 760 g 740 Y Sep 2012 1,099ebay.com
12.
 
Pentax KP 132 mm 101 mm 76 mm 703 g 390 Y Jan 2017 1,099ebay.com
13.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 3,199ebay.com
14.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199ebay.com
15.
 
Sony A7R IIIA 127 mm 96 mm 74 mm 650 g 650 Y Apr 2021 3,199 amazon.com
16.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 3,499ebay.com
17.
 
Sony A77 143 mm 104 mm 81 mm 732 g 470 Y Aug 2011 1,399ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

Any camera decision will obviously take relative prices into account. 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 was launched at a markedly lower price (by 57 percent) than the Z7 II, 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 size of the sensor inside a digital camera is one of the key determinants 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. 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 Z7 II features a full frame sensor and the Pentax K-3 an APS-C sensor. The sensor area in the K-3 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 Z7 II and Pentax K-3 sensor measures

With 45.4MP, the Z7 II offers a higher resolution than the K-3 (24.1MP), but the Z7 II nevertheless has larger individual pixels (pixel pitch of 4.35μm versus 3.90μm for the K-3) due to its larger sensor. Moreover, the Z7 II is a much more recent model (by 7 years) than the K-3, 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 Z7 II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the Z7 II 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 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.

The Z7 II has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Nikon Z7 II 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 are ISO 100 to ISO 51200 (no boost).

In terms of underlying technology, the Z7 II is build around a BSI-CMOS sensor, while the K-3 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.

Z7 II versus K-3 MP

For many cameras, data on sensor performance has been reported by DXO Mark. 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 Z7 II provides substantially higher image quality than the K-3, with an overall score that is 20 points higher. This advantage is based on 2.6 bits higher color depth, 1.3 EV in additional dynamic range, and 1.2 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-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 Z7 II Full Frame 45.4 8256 55044K/60p26.314.72841100
2.
 
Pentax K-3 APS-C 24.1 6016 40001080/60i23.713.4121680
3.
 
Canon R5 Full Frame 44.8 8192 54648K/30p25.314.6304295
4.
 
Canon R6 Full Frame 20.0 5472 36484k/60p24.214.3339490
5.
 
Nikon D7100 APS-C 24.0 6000 40001080/60p24.213.7125683
6.
 
Nikon Z6 Full Frame 24.3 6048 40244K/30p25.314.3329995
7.
 
Nikon Z6 II Full Frame 24.3 6048 40244K/60p25.014.4330394
8.
 
Nikon Z7 Full Frame 45.4 8256 55044K/30p26.314.6266899
9.
 
Nikon Z9 Full Frame 45.4 8256 55048K/30p26.314.4245198
10.
 
Pentax K-3 II APS-C 24.1 6016 40001080/60i23.613.6110680
11.
 
Pentax K-5 II APS-C 16.1 4928 32641080/25p23.814.1123582
12.
 
Pentax KP APS-C 24.1 6016 40001080/60i23.913.2169981
13.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
14.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
15.
 
Sony A7R IIIA Full Frame 42.2 7952 53044K/30p26.014.73523100
16.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.8334499
17.
 
Sony A77 APS-C 24.0 6000 40001080/60p24.013.280178
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 can also record movies. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the Z7 II provides a higher video resolution than the K-3. It can shoot video footage at 4K/60p, 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. For example, the Z7 II has an electronic viewfinder (3690k dots), while the K-3 has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the Z7 II has a higher magnification than the one of the K-3 (0.80x 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 Z7 II, the Pentax K-3, and comparable 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 Z7 II3690 Y3.2 / 2100 tilting Y 1/8000s 10.0/s n Y
2.
 
Pentax K-3optical Y3.2 / 1037 fixed n 1/8000s 8.3/s Y Y
3.
 
Canon R55760 Y3.2 / 2100 swivel Y 1/8000s 12.0/s n Y
4.
 
Canon R63690 n3.0 / 1620 swivel Y 1/8000s 12.0/s n Y
5.
 
Nikon D7100optical Y3.2 / 1229 fixed n 1/8000s 6.0/s Y n
6.
 
Nikon Z63690 Y3.2 / 2100 tilting Y 1/8000s 12.0/s n Y
7.
 
Nikon Z6 II3690 Y3.2 / 2100 tilting Y 1/8000s 14.0/s n Y
8.
 
Nikon Z73690 Y3.2 / 2100 tilting Y 1/8000s 9.0/s n Y
9.
 
Nikon Z93690 Y3.2 / 2089 full-flex Y 1/32000s 30.0/s n Y
10.
 
Pentax K-3 IIoptical Y3.2 / 1037 fixed n 1/8000s 8.3/s n Y
11.
 
Pentax K-5 IIoptical Y3.0 / 921 fixed n 1/8000s 7.0/s Y Y
12.
 
Pentax KPoptical n3.0 / 921 tilting n 1/6000s 7.0/s Y Y
13.
 
Sony A7R II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
14.
 
Sony A7R III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
15.
 
Sony A7R IIIA3686 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
16.
 
Sony A7R IV5760 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
17.
 
Sony A772359 Y3.0 / 921 full-flex n 1/8000s 12.0/s Y 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 Z7 II has a touchscreen, while the K-3 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the Z7 II is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Nikon Z7 II and the Pentax K-3 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 Z7 II writes its imaging data to CFexpress (type B) or SDXC cards, while the K-3 uses SDXC cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails. The Z7 II supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the K-3 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 Z7 II and Pentax K-3 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 Z7 IIYstereo / monoYYmicro3.2Y-Y
2.
 
Pentax K-3Ymono / monoYYmini3.0---
3.
 
Canon R5Ymono / monoYYmicro3.2Y-Y
4.
 
Canon R6Ymono / monoYYmicro3.2Y-Y
5.
 
Nikon D7100Ystereo / monoYYmini2.0---
6.
 
Nikon Z6Ystereo / monoYYmicro3.1Y-Y
7.
 
Nikon Z6 IIYstereo / monoYYmicro3.2Y-Y
8.
 
Nikon Z7Ystereo / monoYYmicro3.1Y-Y
9.
 
Nikon Z9Ystereo / monoYYfull3.2Y-Y
10.
 
Pentax K-3 IIYmono / monoYYmini3.0---
11.
 
Pentax K-5 IIYstereo / monoY-mini2.0---
12.
 
Pentax KPYstereo / monoY--2.0Y--
13.
 
Sony A7R IIYstereo / monoYYmicro2.0YY-
14.
 
Sony A7R IIIYstereo / monoYYmicro3.1YYY
15.
 
Sony A7R IIIAYstereo / monoYYmicro3.2YYY
16.
 
Sony A7R IVYstereo / monoYYmicro3.1YYY
17.
 
Sony A77Ystereo / monoY-mini2.0---

It is notable that the Z7 II offers wifi support, while the K-3 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

Studio photographers will appreciate that the Pentax K-3 (unlike the Z7 II) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The Z7 II is a recent model that features in the current product line-up of Nikon. In contrast, the K-3 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the K-3 was succeeded by the Pentax K-3 II. Further information on the features and operation of the Z7 II and K-3 can be found, respectively, in the Nikon Z7 II Manual (free pdf) or the online Pentax K-3 Manual.

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Review summary

So what conclusions can be drawn? Is there a clear favorite between the Nikon Z7 II and the Pentax K-3? Which camera is better? The listing below highlights the relative strengths of the two models.

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Arguments in favor of the Nikon Z7 II:

  • 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 (2.6 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (1.3 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (1.2 stops ISO advantage).
  • Better video: Provides higher definition movie capture (4K/60p vs 1080/60i).
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.80x vs 0.63x).
  • More detailed LCD: Has a higher resolution rear screen (2100k 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.
  • Faster burst: Shoots at higher frequency (10 vs 8.3 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Less heavy: Is lighter (by 95g or 12 percent) and hence easier to carry around.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • 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 7 years of technical progress since the K-3 launch.

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Reasons to prefer the Pentax K-3:

  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Longer lasting: Gets more shots (560 versus 420) out of a single battery charge.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • More affordable: Was introduced into a lower priced category (57 percent cheaper at launch).
  • More heavily discounted: Has been around for much longer (launched in October 2013).

If the count of relative strengths (bullet points above) is taken as a measure, the Z7 II is the clear winner of the match-up (21 : 6 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.

Z7 II 21:06 K-3

How about other alternatives? Do the specifications of the Nikon Z7 II and the Pentax K-3 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the Z7 II and the K-3 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 why hands-on reviews by experts are important. 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 (USD)
Street
Price
1.
 
Nikon Z7 II4.5/5..4.5/5..4.5/54.5/5 Oct 2020 2,999 amazon.com
2.
 
Pentax K-34/5....83/1005/55/5 Oct 2013 1,299ebay.com
3.
 
Canon R54.5/5+4/591/1004.5/54.5/5 Jul 2020 3,899 amazon.com
4.
 
Canon R65/5+ +4/590/1004.5/55/5 Jul 2020 2,499 amazon.com
5.
 
Nikon D71005/5+ +..85/1004.5/54.5/5 Feb 2013 1,199ebay.com
6.
 
Nikon Z65/5..5/589/1004.5/55/5 Aug 2018 1,999ebay.com
7.
 
Nikon Z6 II4.5/5..4/589/1004.5/54.5/5 Oct 2020 1,999 amazon.com
8.
 
Nikon Z75/5+4.8/589/1004.5/55/5 Aug 2018 3,399ebay.com
9.
 
Nikon Z95/5..4.5/594/1005/55/5 Oct 2021 5,499 amazon.com
10.
 
Pentax K-3 II4.5/5......5/55/5 Apr 2015 1,099ebay.com
11.
 
Pentax K-5 II5/5....80/1005/54.5/5 Sep 2012 1,099ebay.com
12.
 
Pentax KP4/5..3/582/1005/54.5/5 Jan 2017 1,099ebay.com
13.
 
Sony A7R II5/5+ +5/590/1005/55/5 Jun 2015 3,199ebay.com
14.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 3,199ebay.com
15.
 
Sony A7R IIIA..+ +4/590/1004.5/55/5 Apr 2021 3,199 amazon.com
16.
 
Sony A7R IV5/5+4.5/591/1004.5/55/5 Jul 2019 3,499ebay.com
17.
 
Sony A775/591/100..81/100..5/5 Aug 2011 1,399ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, 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. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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Check Z7 II price at
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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. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Nikon Z7 II vs Pentax K-3

    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 Z7 II Pentax K-3
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Nikon Z mount lenses Pentax K mount lenses
    Launch Date October 2020 October 2013
    Launch Price USD 2,999 USD 1,299
    Sensor Specs Nikon Z7 II Pentax K-3
    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/60p Video 1080/60i Video
    ISO Setting 64 - 25,600 ISO 100 - 51,200 ISO
    ISO Boost 32 - 102,400 ISO no Enhancement
    Image Processor DUAL EXPEED 6 PRIME III
    DXO Sensor Quality (score) 100 80
    DXO Color Depth (bits) 26.3 23.7
    DXO Dynamic Range (EV) 14.7 13.4
    DXO Low Light (ISO) 2841 1216
    Screen Specs Nikon Z7 II Pentax K-3
    Viewfinder Type Electronic viewfinder Optical viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.80x 0.63x
    Viewfinder Resolution 3690k dots
    Top-Level Screen Control Panel Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.2inch 3.2inch
    LCD Resolution 2100k dots 1037k dots
    LCD Attachment Tilting screen Fixed screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Nikon Z7 II Pentax K-3
    Focus System On-Sensor Phase-detect Phase-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/8000s
    Continuous Shooting 10 shutter flaps/s 8.3 shutter flaps/s
    Shutter Life Expectancy200 000 actuations200 000 actuations
    Electronic Shutterup to 1/8000sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash no On-Board Flash Built-in Flash
    Storage Medium CFexB or SDXC cards SDXC cards
    Single or Dual Card Slots Dual card slots Dual card slots
    UHS card support UHS-II UHS-I
    Connectivity Specs Nikon Z7 II Pentax K-3
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 3.2 USB 3.0
    HDMI Port micro HDMI mini HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket Headphone port Headphone port
    Wifi Support Wifi built-in no Wifi
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Nikon Z7 II Pentax K-3
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Nikon EN-EL15c Pentax D-LI90
    Battery Life (CIPA)420 shots per charge560 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 134 x 101 x 70 mm
    (5.3 x 4.0 x 2.8 in)
    131 x 100 x 77 mm
    (5.2 x 3.9 x 3.0 in)
    Camera Weight 705 g (24.9 oz) 800 g (28.2 oz)
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