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Nikon Z6 II vs Pentax K-3

The Nikon Z6 II and the Pentax K-3 are two enthusiast cameras that were officially introduced, respectively, in October 2020 and October 2013. The Z6 II is a mirrorless interchangeable lens camera, while the K-3 is a DSLR. The cameras are based on a full frame (Z6 II) and an APS-C (K-3) sensor. The Nikon has a resolution of 24.3 megapixels, whereas the Pentax provides 24.1 MP.

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

Headline Specifications
Nikon Z6 II
versus
Pentax K-3
Nikon Z6 II   Pentax K-3
Mirrorless system camera Digital single lens reflex
Nikon Z mount lenses Pentax K mount lenses
24.3 MP – Full Frame sensor 24.1 MP – APS-C sensor
4K/60p Video 1080/60i Video
ISO 100-51,200 (50 - 204,800) 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)
14 shutter flaps per second 8.3 shutter flaps per second
In-body stabilizationIn-body stabilization
Weathersealed bodyWeathersealed body
410 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 Z6 II price at
amazon.com
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Check K-3 offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon Z6 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 Z6 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 consecutive perspectives from the front, the top, and the back are available. All size dimensions are rounded to the nearest millimeter.

The K-3 can be obtained in two different colors (black, silver), while the Z6 II is only available in black.

Size Nikon Z6 II vs Pentax K-3
Compare Z6 II versus K-3 top
Comparison Z6 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 Z6 II. However, the K-3 is markedly heavier (13 percent) than the Z6 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 Z6 II gets 410 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 Z6 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 want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons 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 Z6 II 134 mm 101 mm 70 mm 705 g 410 i Oct 2020 EUR 2 199 amazon.com
2.
 
Pentax K-3 131 mm 100 mm 77 mm 800 g 560 i Oct 2013 EUR 1 299ebay.com
3.
 
Canon 70D 139 mm 104 mm 79 mm 755 g 920 i Jul 2013 EUR 1 099ebay.com
4.
 
Fujifilm X-T4 135 mm 93 mm 64 mm 607 g 500 i Feb 2020 EUR 1 799ebay.com
5.
 
Nikon D780 144 mm 116 mm 76 mm 840 g 2260 i Jan 2020 EUR 2 499 amazon.com
6.
 
Nikon Z5 134 mm 101 mm 67 mm 675 g 470 i Jul 2020 EUR 1 549ebay.com
7.
 
Nikon Z5 II 134 mm 101 mm 72 mm 700 g 330 i Apr 2025 EUR 1 899 amazon.com
8.
 
Nikon Z6 134 mm 101 mm 67 mm 675 g 310 i Aug 2018 EUR 2 449ebay.com
9.
 
Nikon Z7 II 134 mm 101 mm 70 mm 705 g 420 i Oct 2020 EUR 3 399 amazon.com
10.
 
Nikon Zf 144 mm 103 mm 49 mm 710 g 380 i Sep 2023 EUR 2 499 amazon.com
11.
 
Olympus E-M1 III 134 mm 91 mm 69 mm 580 g 420 i Feb 2020 EUR 1 799ebay.com
12.
 
Panasonic GH5 II 139 mm 98 mm 87 mm 727 g 400 i May 2021 EUR 1 699 amazon.com
13.
 
Panasonic S5 133 mm 98 mm 82 mm 714 g 440 i Sep 2020 EUR 1 999 amazon.com
14.
 
Pentax K-3 II 131 mm 100 mm 77 mm 800 g 720 i Apr 2015 EUR 999ebay.com
15.
 
Pentax K-5 131 mm 97 mm 73 mm 760 g 740 i Sep 2010 EUR 999ebay.com
16.
 
Pentax K-5 II 131 mm 97 mm 73 mm 760 g 740 i Sep 2012 EUR 999ebay.com
17.
 
Pentax KP 132 mm 101 mm 76 mm 703 g 390 i Jan 2017 EUR 1 299ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
  empty Camera
Model

Any camera decision will naturally be influenced heavily by the price. 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 35 percent) than the Z6 II, which puts it into a different market segment. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Sensor comparison

The size of the imaging sensor is a crucial determinant 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. 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 Z6 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 Z6 II and Pentax K-3 sensor measures

With 24.3MP, the Z6 II offers a slightly higher resolution than the K-3 (24.1MP), but the Z6 II nevertheless has larger individual pixels (pixel pitch of 5.94μm versus 3.90μm for the K-3) due to its larger sensor. Moreover, the Z6 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 the K-3 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The Z6 II has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Nikon Z6 II has a native sensitivity range from ISO 100 to ISO 51200, which can be extended to ISO 50-204800. The corresponding ISO settings for the Pentax K-3 are ISO 100 to ISO 51200 (no boost).

In terms of underlying technology, the Z6 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.

Z6 II versus K-3 MP

For many cameras, data on sensor performance has been reported by DXO Mark. 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 Z6 II provides substantially higher image quality than the K-3, with an overall score that is 14 points higher. This advantage is based on 1.3 bits higher color depth, 1 EV in additional dynamic range, and 1.4 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 Z6 II Full Frame 24.3 6048 40244K/60p25.014.4330394
2.
 
Pentax K-3 APS-C 24.1 6016 40001080/60i23.713.4121680
3.
 
Canon 70D APS-C 20.0 5472 36481080/30p22.511.692668
4.
 
Fujifilm X-T4 APS-C 26.0 6240 41604K/60p24.113.6199584
5.
 
Nikon D780 Full Frame 24.3 6048 40244K/30p25.314.3287795
6.
 
Nikon Z5 Full Frame 24.2 6016 40164K/30p25.314.3292995
7.
 
Nikon Z5 II Full Frame 24.4 6048 40324K/60p25.414.8339897
8.
 
Nikon Z6 Full Frame 24.3 6048 40244K/30p25.314.3329995
9.
 
Nikon Z7 II Full Frame 45.4 8256 55044K/60p26.314.72841100
10.
 
Nikon Zf Full Frame 24.3 6048 40244K/60p25.414.7324396
11.
 
Olympus E-M1 III Four Thirds 20.2 5184 38884K/30p23.313.1135676
12.
 
Panasonic GH5 II Four Thirds 20.2 5184 38884K/60p23.713.1113679
13.
 
Panasonic S5 Full Frame 24.0 6000 40004K/60p25.114.5269794
14.
 
Pentax K-3 II APS-C 24.1 6016 40001080/60i23.613.6110680
15.
 
Pentax K-5 APS-C 16.1 4928 32641080/25p23.714.1116282
16.
 
Pentax K-5 II APS-C 16.1 4928 32641080/25p23.814.1123582
17.
 
Pentax KP APS-C 24.1 6016 40001080/60i23.913.2169981
Note: DXO values in italics represent estimates based on sensor size and age.
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
  empty Camera
Model

Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the Z6 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.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the Z6 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 Z6 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 adjacent table lists some of the other core features of the Nikon Z6 II and Pentax K-3 along with similar information for a selection of comparators.

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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 Z6 II3690 i3.2 / 2100 tilting i 1/8000s 14.0/s i i
2.
 
Pentax K-3optical i3.2 / 1037 fixed i 1/8000s 8.3/s i i
3.
 
Canon 70Doptical i3.0 / 1040 swivel i 1/8000s 7.0/s i i
4.
 
Fujifilm X-T43690 i3.0 / 1620 swivel i 1/8000s 15.0/s i i
5.
 
Nikon D780optical i3.2 / 2359 tilting i 1/8000s 12.0/s i i
6.
 
Nikon Z53690 i3.2 / 1040 tilting i 1/8000s 4.5/s i i
7.
 
Nikon Z5 II3690 i3.2 / 2100 swivel i 1/8000s 14.0/s i i
8.
 
Nikon Z63690 i3.2 / 2100 tilting i 1/8000s 12.0/s i i
9.
 
Nikon Z7 II3690 i3.2 / 2100 tilting i 1/8000s 10.0/s i i
10.
 
Nikon Zf3690 i3.2 / 2100 swivel i 1/8000s 14.0/s i i
11.
 
Olympus E-M1 III2360 i3.0 / 1037 swivel i 1/8000s 18.0/s i i
12.
 
Panasonic GH5 II3680 i3.0 / 1840 swivel i 1/8000s 12.0/s i i
13.
 
Panasonic S52360 i3.0 / 1840 swivel i 1/8000s 7.0/s i i
14.
 
Pentax K-3 IIoptical i3.2 / 1037 fixed i 1/8000s 8.3/s i i
15.
 
Pentax K-5optical i3.0 / 921 fixed i 1/8000s 7.0/s i i
16.
 
Pentax K-5 IIoptical i3.0 / 921 fixed i 1/8000s 7.0/s i i
17.
 
Pentax KPoptical i3.0 / 921 tilting i 1/6000s 7.0/s i i
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
  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
  empty Camera
Model

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The Z6 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 Z6 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 Z6 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 Z6 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 Z6 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).

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 Z6 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 Z6 IIistereo / monoiimicro3.2iii
2.
 
Pentax K-3imono / monoiimini3.0iii
3.
 
Canon 70Distereo / monoiimini2.0iii
4.
 
Fujifilm X-T4istereo / monoiimicro3.1iii
5.
 
Nikon D780istereo / monoiimini3.1iii
6.
 
Nikon Z5istereo / monoiimicro3.2iii
7.
 
Nikon Z5 IIistereo / monoiimicro3.2iii
8.
 
Nikon Z6istereo / monoiimicro3.1iii
9.
 
Nikon Z7 IIistereo / monoiimicro3.2iii
10.
 
Nikon Zfistereo / monoiimicro3.2iii
11.
 
Olympus E-M1 IIIistereo / monoiimicro3.1iii
12.
 
Panasonic GH5 IIistereo / monoiifull3.2iii
13.
 
Panasonic S5istereo / monoiimicro3.2iii
14.
 
Pentax K-3 IIimono / monoiimini3.0iii
15.
 
Pentax K-5istereo / monoiimini2.0iii
16.
 
Pentax K-5 IIistereo / monoiimini2.0iii
17.
 
Pentax KPistereo / monoiii2.0iii
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
  empty Camera
Model

It is notable that the Z6 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 Z6 II) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The Z6 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 Z6 II and K-3 can be found, respectively, in the Nikon Z6 II Manual (free pdf) or the online Pentax K-3 Manual.

Review summary

So what is the bottom line? Is the Nikon Z6 II better than the Pentax K-3 or vice versa? Below is a summary of the relative strengths of each of the two contestants.

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Arguments in favor of the Nikon Z6 II:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Better image quality: Scores substantially higher (14 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (1.3 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (1 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (1.4 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 (14 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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Advantages of the Pentax K-3:

  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Longer lasting: Gets more shots (560 versus 410) 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 (35 percent cheaper at launch).
  • More heavily discounted: Has been around for much longer (launched in October 2013).

If the number of relative strengths (bullet points above) is taken as a guide, the Z6 II is the clear winner of the match-up (21 : 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 wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

Z6 II 21:07 K-3

How about other alternatives? Do the specifications of the Nikon Z6 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 remains incomplete and does no justice, for example, to the way the Z6 II or the K-3 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 hands-on reviews by experts are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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 Z6 II4.5/5..4/589/1004.5/54.5/5 Oct 2020 EUR 2 199 amazon.com
2.
 
Pentax K-34/5....83/1005/55/5 Oct 2013 EUR 1 299ebay.com
3.
 
Canon 70D5/5+ +..83/1004.5/55/5 Jul 2013 EUR 1 099ebay.com
4.
 
Fujifilm X-T45/5+ +5/588/1005/55/5 Feb 2020 EUR 1 799ebay.com
5.
 
Nikon D7805/5..5/587/1004.5/54.5/5 Jan 2020 EUR 2 499 amazon.com
6.
 
Nikon Z54/5..4/589/1004.5/54/5 Jul 2020 EUR 1 549ebay.com
7.
 
Nikon Z5 II............ Apr 2025 EUR 1 899 amazon.com
8.
 
Nikon Z65/5..5/589/1004.5/55/5 Aug 2018 EUR 2 449ebay.com
9.
 
Nikon Z7 II4.5/5..4.5/5..4.5/54.5/5 Oct 2020 EUR 3 399 amazon.com
10.
 
Nikon Zf4.5/5..4.5/590/1004.5/55/5 Sep 2023 EUR 2 499 amazon.com
11.
 
Olympus E-M1 III5/5..5/583/1004.5/54/5 Feb 2020 EUR 1 799ebay.com
12.
 
Panasonic GH5 II4.5/5..4.5/585/1004.5/55/5 May 2021 EUR 1 699 amazon.com
13.
 
Panasonic S54.5/5+ +4.5/588/1004.5/54.5/5 Sep 2020 EUR 1 999 amazon.com
14.
 
Pentax K-3 II4.5/5......5/55/5 Apr 2015 EUR 999ebay.com
15.
 
Pentax K-54/5....83/1005/54.5/5 Sep 2010 EUR 999ebay.com
16.
 
Pentax K-5 II5/5....80/1005/54.5/5 Sep 2012 EUR 999ebay.com
17.
 
Pentax KP4/5..3/582/1005/54.5/5 Jan 2017 EUR 1 299ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
  empty  Camera 
 Model 

The review scores listed above should be treated with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. 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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Check Z6 II price at
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Check K-3 offers at
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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 make a corresponding selection in the search boxes 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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  • Hasselblad X1D
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  • Kodak AZ901
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  • Leica C-LUX
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  • Leica D-LUX Typ 109
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  • Leica V-LUX Typ 114
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  • Leica X1
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  • Leica X Vario
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  • Leitz Ur-Leica
  • Nikon 1 J4
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  • Nikon Coolpix A
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  • Pentax 645D
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  • Pentax K-1
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  • Pentax K-3
  • Pentax K-3 II
  • Pentax K-3 III
  • Pentax K-5
  • Pentax K-5 II
  • Pentax K-30
  • Pentax K-50
  • Pentax K-70
  • Pentax K-500
  • Pentax KP
  • Pentax K-S1
  • Pentax K-S2
  • Pentax MX-1
  • Pentax Q
  • Pentax WG-8
  • Pentax WG-90
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  • Ricoh GR
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  • Zeiss ZX1
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Specifications: Nikon Z6 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 Z6 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 1,999 USD 1,299
Sensor Specs Nikon Z6 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 24.3 Megapixels 24.1 Megapixels
Image Resolution 6048 x 4024 pixels 6016 x 4000 pixels
Pixel Pitch 5.94 μm 3.90 μm
Pixel Density 2.84 MP/cm2 6.56 MP/cm2
Moiré control Anti-Alias filter no AA filter
Movie Capability 4K/60p Video 1080/60i Video
ISO Setting 100 - 51,200 ISO 100 - 51,200 ISO
ISO Boost 50 - 204,800 ISO no Enhancement
Image Processor DUAL EXPEED 6 PRIME III
DXO Sensor Quality (score) 94 80
DXO Color Depth (bits) 25 23.7
DXO Dynamic Range (EV) 14.4 13.4
DXO Low Light (ISO) 3303 1216
Screen Specs Nikon Z6 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 Z6 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 14 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 Z6 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 Z6 II Pentax K-3
Environmental SealingWeathersealed bodyWeathersealed body
Battery Type Nikon EN-EL15c Pentax D-LI90
Battery Life (CIPA)410 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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