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Nikon Z6 vs Pentax K-S1

The Nikon Z6 and the Pentax K-S1 are two digital cameras that were announced, respectively, in August 2018 and August 2014. The Z6 is a mirrorless interchangeable lens camera, while the K-S1 is a DSLR. The cameras are based on a full frame (Z6) and an APS-C (K-S1) sensor. The Nikon has a resolution of 24.3 megapixels, whereas the Pentax provides 20 MP.

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

Headline Specifications
Nikon Z6
versus
Pentax K-S1
Nikon Z6 Pentax K-S1
Mirrorless system camera Digital single lens reflex
Nikon Z mount lenses Pentax K mount lenses
24.3 MP, Full Frame Sensor 20 MP, APS-C Sensor
4K/30p Video 1080/30p Video
ISO 100-51,200 (50 - 204,800) ISO 100-51,200
Electronic viewfinder (3690k dots) Optical viewfinder
3.2 LCD, 2100k dots 3.0 LCD, 921k dots
Tilting touchscreen Fixed screen (not touch-sensitive)
12 shutter flaps per second 5.4 shutter flaps per second
In-body stabilizationIn-body stabilization
Weathersealed bodynot weather sealed
310 shots per battery charge410 shots per battery charge
134 x 101 x 67 mm, 675 g 121 x 93 x 70 mm, 558 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon Z6 and the Pentax K-S1? 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

The physical size and weight of the Nikon Z6 and the Pentax K-S1 are illustrated 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 dimensions are rounded to the nearest millimeter.

The K-S1 can be obtained in four different colors (black, grey, orange, white), while the Z6 is only available in black.

Size Nikon Z6 vs Pentax K-S1
Compare Z6 versus K-S1 top
Comparison Z6 or K-S1 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax K-S1 is notably smaller (17 percent) than the Nikon Z6. Moreover, the K-S1 is markedly lighter (17 percent) than the Z6. It is worth mentioning in this context that the Z6 is splash and dust resistant, while the K-S1 does not feature any corresponding weather-sealing.

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 gets 310 shots out of its EN-EL15b battery, while the K-S1 can take 410 images on a single charge of its D-LI109 power pack. The power pack in the Z6 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
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon Z6 134 mm 101 mm 67 mm 675 g 310 Y Aug 2018 1,999 i
2.
 
Pentax K-S1 121 mm 93 mm 70 mm 558 g 410 n Aug 2014 749 i
3.
 
Nikon Z6 II 134 mm 101 mm 70 mm 705 g 410 Y Oct 2020 1,999 i
4.
 
Nikon Z7 134 mm 101 mm 67 mm 675 g 330 Y Aug 2018 3,399 i
5.
 
Nikon D750 141 mm 113 mm 78 mm 750 g 1230 Y Sep 2014 2,299 i
6.
 
Nikon D5300 125 mm 98 mm 76 mm 480 g 600 n Oct 2013 799 i
7.
 
Olympus E-M1 II 134 mm 91 mm 67 mm 574 g 440 Y Sep 2016 1,999 i
8.
 
Panasonic G9 137 mm 97 mm 92 mm 658 g 400 Y Nov 2017 1,699 i
9.
 
Panasonic GH5 139 mm 98 mm 87 mm 725 g 410 Y Jan 2017 1,999 i
10.
 
Pentax K-S2 123 mm 91 mm 73 mm 678 g 410 Y Feb 2015 749 i
11.
 
Pentax K-500 130 mm 97 mm 71 mm 646 g 710 n Jun 2013 549 i
12.
 
Pentax K-3 131 mm 100 mm 77 mm 800 g 560 Y Oct 2013 1,299 i
13.
 
Sony A7 III 127 mm 96 mm 74 mm 650 g 610 Y Feb 2018 1,999 i
14.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 4,499 i
15.
 
Sony A68 143 mm 104 mm 81 mm 610 g 540 n Nov 2015 699 i
16.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 1,999 i
17.
 
Sony A77 143 mm 104 mm 81 mm 732 g 470 Y Aug 2011 1,399 i
Notes: 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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The K-S1 was launched at a markedly lower price (by 63 percent) than the Z6, 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.

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Sensor comparison

The size of the sensor inside a digital camera is one of the key determinants of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have 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 more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Nikon Z6 features a full frame sensor and the Pentax K-S1 an APS-C sensor. The sensor area in the K-S1 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 and Pentax K-S1 sensor measures

With 24.3MP, the Z6 offers a higher resolution than the K-S1 (20MP), but the Z6 nevertheless has larger individual pixels (pixel pitch of 5.94μm versus 4.28μm for the K-S1) due to its larger sensor. Moreover, the Z6 is a much more recent model (by 3 years and 11 months) than the K-S1, 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-S1 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Nikon Z6 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the Z6 for good quality output (200 dots per inch) amounts to 30.2 x 20.1 inches or 76.8 x 51.1 cm, for very good quality (250 dpi) 24.2 x 16.1 inches or 61.4 x 40.9 cm, and for excellent quality (300 dpi) 20.2 x 13.4 inches or 51.2 x 34.1 cm. The corresponding values for the Pentax K-S1 are 27.4 x 18.2 inches or 69.5 x 46.3 cm for good quality, 21.9 x 14.6 inches or 55.6 x 37.1 cm for very good quality, and 18.2 x 12.2 inches or 46.3 x 30.9 cm for excellent quality prints.

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

The Nikon Z6 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-S1 are ISO 100 to ISO 51200 (no boost).

Z6 versus K-S1 MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 Z6 provides substantially higher image quality than the K-S1, with an overall score that is 17 points higher. This advantage is based on 1.8 bits higher color depth, 1.3 EV in additional dynamic range, and 1.6 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
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Nikon Z6 Full Frame 24.3 6048 40244K/30p25.314.33299 95
2.
 
Pentax K-S1 APS-C 20.0 5472 36481080/30p23.513.01061 78
3.
 
Nikon Z6 II Full Frame 24.3 6048 40244K/60p...... ..
4.
 
Nikon Z7 Full Frame 45.4 8256 55044K/30p26.314.62668 99
5.
 
Nikon D750 Full Frame 24.2 6016 40161080/60p24.814.52956 93
6.
 
Nikon D5300 APS-C 24.0 6000 40001080/60p24.013.91338 83
7.
 
Olympus E-M1 II Four Thirds 20.2 5184 38884K/30p23.712.81312 80
8.
 
Panasonic G9 Four Thirds 20.2 5184 38884K/60p...... ..
9.
 
Panasonic GH5 Four Thirds 20.2 5184 38884K/60p23.913.0807 77
10.
 
Pentax K-S2 APS-C 20.0 5472 36481080/30p...... ..
11.
 
Pentax K-500 APS-C 16.1 4928 32641080/30p23.713.11087 79
12.
 
Pentax K-3 APS-C 24.1 6016 40001080/60i23.713.41216 80
13.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.73730 96
14.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.33517 92
15.
 
Sony A68 APS-C 24.0 6000 40001080/60i24.113.5701 79
16.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.62449 90
17.
 
Sony A77 APS-C 24.0 6000 40001080/60p24.013.2801 78

Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the Z6 provides a higher video resolution than the K-S1. It can shoot video footage at 4K/30p, while the Pentax is limited to 1080/30p.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the Z6 has an electronic viewfinder (3690k dots), while the K-S1 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 has a higher magnification than the one of the K-S1 (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 and Pentax K-S1 along with similar information for a selection of comparators.

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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
1.
 
Nikon Z63690 Y 3.2 2100 tilting Y 1/8000s 12.0 n Y
2.
 
Pentax K-S1optical n 3.0 921 fixed n 1/6000s 5.4 Y Y
3.
 
Nikon Z6 II3690 Y 3.2 2100 tilting Y 1/8000s 14.0 n Y
4.
 
Nikon Z73690 Y 3.2 2100 tilting Y 1/8000s 9.0 n Y
5.
 
Nikon D750optical Y 3.2 1229 tilting n 1/4000s 6.0 Y n
6.
 
Nikon D5300optical n 3.2 1037 swivel n 1/4000s 5.0 Y n
7.
 
Olympus E-M1 II2360 n 3.0 1037 swivel Y 1/8000s 18.0 n Y
8.
 
Panasonic G93680 Y 3.0 1040 swivel Y 1/8000s 20.0 n Y
9.
 
Panasonic GH53680 n 3.2 1620 swivel Y 1/8000s 12.0 n Y
10.
 
Pentax K-S2optical n 3.0 921 swivel n 1/6000s 5.4 Y Y
11.
 
Pentax K-500optical n 3.0 921 fixed n 1/6000s 6.0 Y Y
12.
 
Pentax K-3optical Y 3.2 1037 fixed n 1/8000s 8.3 Y Y
13.
 
Sony A7 III2359 n 3.0 922 tilting Y 1/8000s 10.0 n Y
14.
 
Sony A93686 n 3.0 1440 tilting Y 1/8000s 20.0 n Y
15.
 
Sony A681440 Y 2.7 460 tilting n 1/4000s 8.0 Y Y
16.
 
Sony A7 II2400 n 3.0 1230 tilting n 1/8000s 5.0 n Y
17.
 
Sony A772359 Y 3.0 921 full-flex n 1/8000s 12.0 Y Y

One feature that is present on the Z6, but is missing on the K-S1 is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.

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 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 has 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 writes its imaging data to XQD cards, while the K-S1 uses SDXC cards.

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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 Z6 and Pentax K-S1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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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
1.
 
Nikon Z6YstereomonoYYmicro3.1Y-Y
2.
 
Pentax K-S1Ystereomono--micro2.0---
3.
 
Nikon Z6 IIYstereomonoYYmicro3.2Y-Y
4.
 
Nikon Z7YstereomonoYYmicro3.1Y-Y
5.
 
Nikon D750YstereomonoYYmini2.0Y--
6.
 
Nikon D5300YstereomonoY-mini2.0Y--
7.
 
Olympus E-M1 IIYstereomonoYYmicro3.0Y--
8.
 
Panasonic G9YstereomonoYYfull3.0Y-Y
9.
 
Panasonic GH5YstereomonoYYfull3.1Y-Y
10.
 
Pentax K-S2YmonomonoY-micro2.0YY-
11.
 
Pentax K-500Ymonomono---2.0---
12.
 
Pentax K-3YmonomonoYYmini3.0---
13.
 
Sony A7 IIIYstereomonoYYmicro3.1YYY
14.
 
Sony A9YstereomonoYYmicro2.0YYY
15.
 
Sony A68YstereomonoY-micro2.0---
16.
 
Sony A7 IIYstereomonoYYmicro2.0YY-
17.
 
Sony A77YstereomonoY-mini2.0---

It is notable that the Z6 has a microphone port, which is missing on the K-S1. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.

Both the Z6 and the K-S1 have been discontinued, but can regularly be found used on eBay. The K-S1 was replaced by the Pentax K-S2, while the Z6 was followed by the Nikon Z6 II. 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.

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Review summary

So what is the bottom line? Is the Nikon Z6 better than the Pentax K-S1 or vice versa? Below is a summary of the relative strengths of each of the two contestants.

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Advantages of the Nikon Z6:

  • More detail: Offers more megapixels (24.3 vs 20MP) with a 10% 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 (17 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (1.8 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 (1.6 stops ISO advantage).
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/30p).
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • 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).
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (2100k vs 921k 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 shutter: Has higher mechanical shutter speed (1/8000s vs 1/6000s) to freeze action.
  • Faster burst: Shoots at higher frequency (12 vs 5.4 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • 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.
  • More modern: Reflects 3 years and 11 months of technical progress since the K-S1 launch.

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Arguments in favor of the Pentax K-S1:

  • 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.
  • More compact: Is smaller (121x93mm vs 134x101mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 117g or 17 percent) and is thus easier to take along.
  • Longer lasting: Gets more shots (410 versus 310) out of a single battery charge.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • More affordable: Was introduced into a lower priced category (63 percent cheaper at launch).
  • More heavily discounted: Has been around for much longer (launched in August 2014).

If the count of individual advantages (bullet points above) is taken as a guide, the Z6 is the clear winner of the match-up (28 : 8 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.

Z6 28:08 K-S1

How about other alternatives? Do the specifications of the Nikon Z6 and the Pentax K-S1 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 Z6 and the K-S1 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 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], 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
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon Z65/5....4.5/55/5 Aug 2018 1,999 i
2.
 
Pentax K-S14/5....4.5/54/5 Aug 2014 749 i
3.
 
Nikon Z6 II4.5/5..89/1004.5/54.5/5 Oct 2020 1,999 i
4.
 
Nikon Z75/5+89/1004.5/55/5 Aug 2018 3,399 i
5.
 
Nikon D7505/5+ +90/1004.5/54.5/5 Sep 2014 2,299 i
6.
 
Nikon D53004/5+ +79/1004.5/54.5/5 Oct 2013 799 i
7.
 
Olympus E-M1 II5/5+ +85/1004.5/54.5/5 Sep 2016 1,999 i
8.
 
Panasonic G9..+ +85/1005/55/5 Nov 2017 1,699 i
9.
 
Panasonic GH54.5/5+ +85/1004.5/55/5 Jan 2017 1,999 i
10.
 
Pentax K-S24.5/5....5/54.5/5 Feb 2015 749 i
11.
 
Pentax K-500......4.5/54.5/5 Jun 2013 549 i
12.
 
Pentax K-34/5..83/1005/55/5 Oct 2013 1,299 i
13.
 
Sony A7 III..+ +89/1005/55/5 Feb 2018 1,999 i
14.
 
Sony A95/5+ +89/1005/55/5 Apr 2017 4,499 i
15.
 
Sony A683/5....4/54/5 Nov 2015 699 i
16.
 
Sony A7 II5/5+82/1004.5/55/5 Nov 2014 1,999 i
17.
 
Sony A775/591/10081/100..5/5 Aug 2011 1,399 i
Notes: (+ +) 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. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

Nikon Z6:
Check Ebay offers
Pentax K-S1:
Check Ebay offers

Other camera comparisons

Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just use the search menu below. 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 Z6 vs Pentax K-S1

    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 Pentax K-S1
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Nikon Z mount lenses Pentax K mount lenses
    Launch Date August 2018 August 2014
    Launch Price USD 1,999 USD 749
    Sensor Specs Nikon Z6 Pentax K-S1
    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 20 Megapixels
    Image Resolution 6048 x 4024 pixels 5472 x 3648 pixels
    Pixel Pitch 5.94 μm 4.28 μm
    Pixel Density 2.84 MP/cm2 5.45 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 4K/30p Video 1080/30p Video
    ISO Setting 100 - 51,200 ISO 100 - 51,200 ISO
    ISO Boost 50 - 204,800 ISO no Enhancement
    Image Processor EXPEED 6 PRIME MII
    DXO Sensor Quality (score) 95 78
    DXO Color Depth (bits) 25.3 23.5
    DXO Dynamic Range (EV) 14.3 13.0
    DXO Low Light (ISO) 3299 1061
    Screen Specs Nikon Z6 Pentax K-S1
    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 no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.2inch 3.0inch
    LCD Resolution 2100k dots 921k dots
    LCD Attachment Tilting screen Fixed screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Nikon Z6 Pentax K-S1
    Focus System On-Sensor Phase-detect Phase-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/6000s
    Continuous Shooting 12 shutter flaps/s 5.4 shutter flaps/s
    Electronic Shutterup to 1/8000sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash no On-Board Flash Built-in Flash
    Storage Medium XQD cards SDXC cards
    Second Storage Option Single card slot Single card slot
    Connectivity Specs Nikon Z6 Pentax K-S1
    External Flash Hotshoe Hotshoe
    USB Connector USB 3.1 USB 2.0
    HDMI Port micro HDMI micro HDMI
    Microphone Port External MIC port no MIC socket
    Headphone Socket Headphone port no Headphone port
    Wifi Support Wifi built-in no Wifi
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Nikon Z6 Pentax K-S1
    Environmental SealingWeathersealed bodynot weather sealed
    Battery Type EN-EL15b D-LI109
    Battery Life (CIPA)310 shots per charge410 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 134 x 101 x 67 mm
    (5.3 x 4.0 x 2.6 in)
    121 x 93 x 70 mm
    (4.8 x 3.7 x 2.8 in)
    Camera Weight 675 g (23.8 oz) 558 g (19.7 oz)

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