Nikon Z6 II vs Pentax K-5 II
The Nikon Z6 II and the Pentax K-5 II are two enthusiast cameras that were revealed to the public, respectively, in October 2020 and September 2012. The Z6 II is a mirrorless interchangeable lens camera, while the K-5 II is a DSLR. The cameras are based on a full frame (Z6 II) and an APS-C (K-5 II) sensor. The Nikon has a resolution of 24.3 megapixels, whereas the Pentax provides 16.1 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon Z6 II and the Pentax K-5 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.
An illustration of the physical size and weight of the Nikon Z6 II and the Pentax K-5 II 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 dimensions are rounded to the nearest millimeter.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax K-5 II is notably smaller (6 percent) than the Nikon Z6 II. However, the K-5 II is markedly heavier (8 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 EN-EL15c battery, while the K-5 II can take 740 images on a single charge of its 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 table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.
|1.||Nikon Z6 II||134 mm||101 mm||70 mm||705 g||410||Y||Oct 2020||1,999|
|2.||Pentax K-5 II||131 mm||97 mm||73 mm||760 g||740||Y||Sep 2012||1,099|
|3.||Canon R6||138 mm||98 mm||88 mm||680 g||360||Y||Jul 2020||2,499|
|4.||Fujifilm X-T4||135 mm||93 mm||64 mm||607 g||500||Y||Feb 2020||1,699|
|5.||Nikon D780||144 mm||116 mm||76 mm||840 g||2260||Y||Jan 2020||2,299|
|6.||Nikon Z5||134 mm||101 mm||67 mm||675 g||470||Y||Jul 2020||1,399|
|7.||Nikon Z7 II||134 mm||101 mm||70 mm||705 g||420||Y||Oct 2020||2,999|
|8.||Nikon Z6||134 mm||101 mm||67 mm||675 g||310||Y||Aug 2018||1,999|
|9.||Olympus E-M1 III||134 mm||91 mm||69 mm||580 g||420||Y||Feb 2020||1,799|
|10.||Panasonic S5||133 mm||98 mm||82 mm||714 g||440||Y||Sep 2020||1,999|
|11.||Pentax K-3 II||131 mm||100 mm||77 mm||800 g||720||Y||Apr 2015||1,099|
|12.||Pentax K-50||130 mm||97 mm||71 mm||650 g||410||Y||Jun 2013||599|
|13.||Pentax K-3||131 mm||100 mm||77 mm||800 g||560||Y||Oct 2013||1,299|
|14.||Pentax K-30||130 mm||97 mm||71 mm||650 g||410||Y||May 2012||849|
|15.||Pentax K-5||131 mm||97 mm||73 mm||760 g||740||Y||Sep 2010||1,099|
|16.||Sony A9 II||129 mm||96 mm||76 mm||678 g||690||Y||Oct 2019||4,499|
|17.||Sony A7 III||127 mm||96 mm||74 mm||650 g||610||Y||Feb 2018||1,999|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will naturally be influenced heavily by the price. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The K-5 II was launched at a markedly lower price (by 45 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.
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. 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 II features a full frame sensor and the Pentax K-5 II an APS-C sensor. The sensor area in the K-5 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.
With 24.3MP, the Z6 II offers a higher resolution than the K-5 II (16.1MP), but the Z6 II nevertheless has larger individual pixels (pixel pitch of 5.94μm versus 4.81μm for the K-5 II) due to its larger sensor. Moreover, the Z6 II is a much more recent model (by 8 years and 1 month) than the K-5 II, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.
The resolution advantage of the Nikon Z6 II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the Z6 II 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-5 II are 24.6 x 16.3 inches or 62.6 x 41.5 cm for good quality, 19.7 x 13.1 inches or 50.1 x 33.2 cm for very good quality, and 16.4 x 10.9 inches or 41.7 x 27.6 cm for excellent quality prints.
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-5 II are ISO 100 to ISO 12800, with the possibility to increase the ISO range to 80-51200.
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"). The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
| DXO |
|1.||Nikon Z6 II||Full Frame||24.3||6048||4024||4K/60p||..||..||..||..|
|2.||Pentax K-5 II||APS-C||16.1||4928||3264||1080/25p||23.8||14.1||1235||82|
|3.||Canon R6||Full Frame||20.0||5472||3648||4k/60p||24.2||14.3||3394||90|
|5.||Nikon D780||Full Frame||24.3||6048||4024||4K/30p||..||..||..||..|
|6.||Nikon Z5||Full Frame||24.2||6016||4016||4K/30p||..||..||..||..|
|7.||Nikon Z7 II||Full Frame||45.4||8256||5504||4K/60p||..||..||..||..|
|8.||Nikon Z6||Full Frame||24.3||6048||4024||4K/30p||25.3||14.3||3299||95|
|9.||Olympus E-M1 III||Four Thirds||20.2||5184||3888||4K/30p||..||..||..||..|
|10.||Panasonic S5||Full Frame||24.0||6000||4000||4K/60p||..||..||..||..|
|11.||Pentax K-3 II||APS-C||24.1||6016||4000||1080/60i||23.6||13.6||1106||80|
|16.||Sony A9 II||Full Frame||24.0||6000||4000||4K/30p||25.0||14.0||3434||93|
|17.||Sony A7 III||Full Frame||24.0||6000||4000||4K/30p||25.0||14.7||3730||96|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the Z6 II provides a higher video resolution than the K-5 II. It can shoot video footage at 4K/60p, while the Pentax is limited to 1080/25p.
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-5 II 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-5 II (0.80x vs 0.61x), 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 Z6 II, the Pentax K-5 II, and comparable cameras.
|1.||Nikon Z6 II||3690||Y||3.2||2100||tilting||Y||1/8000s||14.0||n||Y|
|2.||Pentax K-5 II||optical||Y||3.0||921||fixed||n||1/8000s||7.0||Y||Y|
|7.||Nikon Z7 II||3690||Y||3.2||2100||tilting||Y||1/8000s||10.0||n||Y|
|9.||Olympus E-M1 III||2360||n||3.0||1037||swivel||Y||1/8000s||18.0||n||Y|
|11.||Pentax K-3 II||optical||Y||3.2||1037||fixed||n||1/8000s||8.3||n||Y|
|16.||Sony A9 II||3686||n||3.0||1440||tilting||Y||1/8000s||10.0||n||Y|
|17.||Sony A7 III||2359||n||3.0||922||tilting||Y||1/8000s||10.0||n||Y|
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The Z6 II has a touchscreen, while the K-5 II 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-5 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 Z6 II writes its imaging data to CFexpress or SDXC cards, while the K-5 II uses SDXC cards. The Z6 II features dual card slots, which can be very useful in case a memory card fails. In contrast, the K-5 II only has one slot. The Z6 II supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the K-5 II cannot take advantage of Ultra High Speed SD cards.
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-5 II and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|1.||Nikon Z6 II||Y||stereo||mono||Y||Y||micro||3.2||Y||-||Y|
|2.||Pentax K-5 II||Y||stereo||mono||Y||-||mini||2.0||-||-||-|
|7.||Nikon Z7 II||Y||stereo||mono||Y||Y||micro||3.2||Y||-||Y|
|9.||Olympus E-M1 III||Y||stereo||mono||Y||Y||micro||3.1||Y||-||Y|
|11.||Pentax K-3 II||Y||mono||mono||Y||Y||mini||3.0||-||-||-|
|16.||Sony A9 II||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y|
|17.||Sony A7 III||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y|
It is notable that the Z6 II has a headphone jack, which is not present on the K-5 II This port makes it possible to attach external headphones and monitor the quality of sound during the recording process.
Studio photographers will appreciate that the Pentax K-5 II (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-5 II has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the K-5 II was succeeded by the Pentax K-3. 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.
So what is the bottom line? Is the Nikon Z6 II better than the Pentax K-5 II or vice versa? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the Nikon Z6 II:
- More detail: Offers more megapixels (24.3 vs 16.1MP) with a 23% higher linear resolution.
- Better image quality: Features a larger and more technologically advanced imaging sensor.
- Richer colors: The sensor size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
- Better video: Provides higher definition movie capture (4K/60p vs 1080/25p).
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- 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 0.61x).
- 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 burst: Shoots at higher frequency (14 vs 7 flaps/sec) to capture the decisive moment.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- 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.
- Faster data transfer: Supports a more advanced USB protocol (3.2 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.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- Faster buffer clearing: Supports Ultra High Speed (UHS-II) SDXC cards.
- More modern: Reflects 8 years and 1 month of technical progress since the K-5 II launch.
Arguments in favor of the Pentax K-5 II:
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Longer lasting: Gets more shots (740 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 (45 percent cheaper at launch).
- More heavily discounted: Has been around for much longer (launched in September 2012).
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 (24 : 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.
How about other alternatives? Do the specifications of the Nikon Z6 II and the Pentax K-5 II 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 comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the Z6 II or the K-5 II. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.
This is why expert reviews are important. The following table reports the overall ratings of the cameras as published by some of the major 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.
|1.||Nikon Z6 II||4.5/5||..||89/100||4.5/5||4.5/5||Oct 2020||1,999|
|2.||Pentax K-5 II||5/5||..||80/100||5/5||4.5/5||Sep 2012||1,099|
|3.||Canon R6||5/5||+ +||90/100||4.5/5||5/5||Jul 2020||2,499|
|4.||Fujifilm X-T4||5/5||+ +||..||5/5||5/5||Feb 2020||1,699|
|5.||Nikon D780||5/5||..||87/100||4.5/5||4.5/5||Jan 2020||2,299|
|6.||Nikon Z5||4/5||..||89/100||4.5/5||4/5||Jul 2020||1,399|
|7.||Nikon Z7 II||4.5/5||..||..||4.5/5||4.5/5||Oct 2020||2,999|
|8.||Nikon Z6||5/5||..||..||4.5/5||5/5||Aug 2018||1,999|
|9.||Olympus E-M1 III||5/5||..||83/100||4.5/5||4/5||Feb 2020||1,799|
|10.||Panasonic S5||4.5/5||+ +||..||4.5/5||4.5/5||Sep 2020||1,999|
|11.||Pentax K-3 II||4.5/5||..||..||5/5||5/5||Apr 2015||1,099|
|12.||Pentax K-50||5/5||..||..||5/5||4.5/5||Jun 2013||599|
|13.||Pentax K-3||4/5||..||83/100||5/5||5/5||Oct 2013||1,299|
|14.||Pentax K-30||4/5||..||78/100||4.5/5||4.5/5||May 2012||849|
|15.||Pentax K-5||4/5||..||83/100||5/5||4.5/5||Sep 2010||1,099|
|16.||Sony A9 II||..||..||90/100||5/5||5/5||Oct 2019||4,499|
|17.||Sony A7 III||..||+ +||89/100||5/5||5/5||Feb 2018||1,999|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The review scores listed above should be treated with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. Thus, a score needs to be put into the context of the launch date and the launch price 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, please note that some of the review sites have changed their methodology and reporting over time.
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.
Specifications: Nikon Z6 II vs Pentax K-5 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 Model||Nikon Z6 II||Pentax K-5 II|
|Camera Type||Mirrorless system camera||Digital single lens reflex|
|Camera Lens||Nikon Z mount lenses||Pentax K mount lenses|
|Launch Date||October 2020||September 2012|
|Launch Price||USD 1,999||USD 1,099|
|Sensor Specs||Nikon Z6 II||Pentax K-5 II|
|Sensor Format||Full Frame Sensor||APS-C Sensor|
|Sensor Size||35.9 x 23.9 mm||23.7 x 15.7 mm|
|Sensor Area||858.01 mm2||372.09 mm2|
|Sensor Diagonal||43.1 mm||28.4 mm|
|Sensor Resolution||24.3 Megapixels||16.1 Megapixels|
|Image Resolution||6048 x 4024 pixels||4928 x 3264 pixels|
|Pixel Pitch||5.94 μm||4.81 μm|
|Pixel Density||2.84 MP/cm2||4.32 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||4K/60p Video||1080/25p Video|
|ISO Setting||100 - 51,200 ISO||100 - 12,800 ISO|
|ISO Boost||50 - 204,800 ISO||80 - 51,200 ISO|
|Image Processor||DUAL EXPEED 6||PRIME II|
|DXO Sensor Quality (score)||..||82|
|DXO Color Depth (bits)||..||23.8|
|DXO Dynamic Range (EV)||..||14.1|
|DXO Low Light (ISO)||..||1235|
|Screen Specs||Nikon Z6 II||Pentax K-5 II|
|Viewfinder Type||Electronic viewfinder||Optical viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||3690k dots|
|Top-Level Screen||Control Panel||Control Panel|
|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 II||Pentax K-5 II|
|Focus System||On-Sensor Phase-detect||Phase-detect AF|
|Manual Focusing Aid||Focus Peaking||no Peaking Feature|
|Continuous Shooting||14 shutter flaps/s||7 shutter flaps/s|
|Shutter Life Expectancy||200 000 actuations||100 000 actuations|
|Electronic Shutter||up to 1/8000s||no E-Shutter|
|Time-Lapse Photography||Intervalometer built-in||Intervalometer built-in|
|Image Stabilization||In-body stabilization||In-body stabilization|
|Fill Flash||no On-Board Flash||Build-in Flash|
|Storage Medium||CFexpress or SDXC cards||SDXC cards|
|Second Storage Option||Dual card slots||Single card slot|
|UHS card support||UHS-II||no|
|Connectivity Specs||Nikon Z6 II||Pentax K-5 II|
|Studio Flash||no PC Sync||PC Sync socket|
|USB Connector||USB 3.2||USB 2.0|
|HDMI Port||micro HDMI||mini HDMI|
|Microphone Port||External MIC port||External MIC port|
|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 II||Pentax K-5 II|
|Environmental Sealing||Weathersealed body||Weathersealed body|
|Battery Life (CIPA)||410 shots per charge||740 shots per charge|
|In-Camera Charging||USB charging||no USB charging|
134 x 101 x 70 mm
(5.3 x 4.0 x 2.8 in)
131 x 97 x 73 mm
(5.2 x 3.8 x 2.9 in)
|Camera Weight||705 g (24.9 oz)||760 g (26.8 oz)|
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