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Nikon Z6 II vs Pentax 645D

The Nikon Z6 II and the Pentax 645D are two digital cameras that were revealed to the public, respectively, in October 2020 and March 2010. The Z6 II is a mirrorless interchangeable lens camera, while the 645D is a DSLR. The cameras are based on a full frame (Z6 II) and a medium format (645D) sensor. The Nikon has a resolution of 24.3 megapixels, whereas the Pentax provides 39.5 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 645D
Nikon Z6 II   Pentax 645D
Mirrorless system camera Digital single lens reflex
Nikon Z mount lenses Pentax 645 mount lenses
24.3 MP – Full Frame sensor 39.5 MP – Medium Format sensor
4K/60p Video no Video
ISO 100-51,200 (50 - 204,800) ISO 100-1,600
Electronic viewfinder (3690k dots) Optical viewfinder
3.2" LCD – 2100k dots 3.0" LCD – 921k dots
Tilting touchscreen Fixed screen (not touch-sensitive)
14 shutter flaps per second 1.1 shutter flaps per second
In-body stabilizationLens stabilization only
Weathersealed bodyWeathersealed body
410 shots per battery charge800 shots per battery charge
134 x 101 x 70 mm, 705 g 156 x 117 x 119 mm, 1480 g
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Check Z6 II price at
amazon.com
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Check 645D 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 645D? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

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Body comparison

The physical size and weight of the Nikon Z6 II and the Pentax 645D are illustrated 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.

Size Nikon Z6 II vs Pentax 645D
Compare Z6 II versus 645D top
Comparison Z6 II or 645D rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax 645D is notably larger (35 percent) than the Nikon Z6 II. Moreover, the 645D is substantially heavier (110 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 645D can take 800 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 adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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 Z6 II 134 mm 101 mm 70 mm 705 g 410 Y Oct 2020 1,999 amazon.com
2.
 
Pentax 645D 156 mm 117 mm 119 mm 1480 g 800 Y Mar 2010 9,995ebay.com
3.
 
Canon 1D Mark IV 156 mm 157 mm 80 mm 1230 g 1500 Y Oct 2009 4,999ebay.com
4.
 
Canon 1D X 158 mm 168 mm 83 mm 1551 g 1120 Y Oct 2011 6,799ebay.com
5.
 
Canon R6 138 mm 98 mm 88 mm 680 g 360 Y Jul 2020 2,499 amazon.com
6.
 
Leica S Typ 006 160 mm 120 mm 80 mm 1260 g .. Y Sep 2012 21,950ebay.com
7.
 
Nikon D3S 160 mm 157 mm 88 mm 1240 g 4200 Y Oct 2009 5,199ebay.com
8.
 
Nikon D750 141 mm 113 mm 78 mm 750 g 1230 Y Sep 2014 2,299ebay.com
9.
 
Nikon D780 144 mm 116 mm 76 mm 840 g 2260 Y Jan 2020 2,299 amazon.com
10.
 
Nikon Z5 134 mm 101 mm 67 mm 675 g 470 Y Jul 2020 1,399 amazon.com
11.
 
Nikon Z6 134 mm 101 mm 67 mm 675 g 310 Y Aug 2018 1,999ebay.com
12.
 
Nikon Z7 134 mm 101 mm 67 mm 675 g 330 Y Aug 2018 3,399ebay.com
13.
 
Nikon Z7 II 134 mm 101 mm 70 mm 705 g 420 Y Oct 2020 2,999 amazon.com
14.
 
Nikon Zf 144 mm 103 mm 49 mm 710 g 380 Y Sep 2023 1,999 amazon.com
15.
 
Panasonic S5 133 mm 98 mm 82 mm 714 g 440 Y Sep 2020 1,999 amazon.com
16.
 
Pentax 645Z 156 mm 117 mm 123 mm 1550 g 650 Y Apr 2014 8,499ebay.com
17.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 1,999ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The 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 Z6 II was launched at a markedly lower price (by 80 percent) than the 645D, 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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its 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 Z6 II features a full frame sensor and the Pentax 645D a medium format sensor. The sensor area in the 645D is 69 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 0.79. The sensor in the Z6 II has a native 3:2 aspect ratio, while the one in the 645D offers a 4:3 aspect.

Nikon Z6 II and Pentax 645D sensor measures

With 39.5MP, the 645D offers a higher resolution than the Z6 II (24.3MP), but the 645D nevertheless has larger individual pixels (pixel pitch of 6.06μm versus 5.94μm for the Z6 II) due to its larger sensor. However, the Z6 II is a much more recent model (by 10 years and 7 months) than the 645D, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the 645D has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Pentax 645D implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 645D for good quality output (200 dots per inch) amounts to 36.3 x 27.2 inches or 92.3 x 69.1 cm, for very good quality (250 dpi) 29.1 x 21.8 inches or 73.8 x 55.3 cm, and for excellent quality (300 dpi) 24.2 x 18.1 inches or 61.5 x 46.1 cm. The corresponding values for the Nikon Z6 II are 30.2 x 20.1 inches or 76.8 x 51.1 cm for good quality, 24.2 x 16.1 inches or 61.4 x 40.9 cm for very good quality, and 20.2 x 13.4 inches or 51.2 x 34.1 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 645D are ISO 100 to ISO 1600 (no boost).

In terms of underlying technology, the Z6 II is build around a BSI-CMOS sensor, while the 645D uses a CCD 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 645D 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 645D, with an overall score that is 12 points higher. This advantage is based on 0.4 bits higher color depth, 1.8 EV in additional dynamic range, and 1.4 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 Z6 II Full Frame 24.3 6048 40244K/60p25.014.4330394
2.
 
Pentax 645D Medium Format 39.5 7264 5440none24.612.6126282
3.
 
Canon 1D Mark IV APS-H 16.0 4896 32641080/30p22.812.0132074
4.
 
Canon 1D X Full Frame 17.9 5184 34561080/30p23.811.8278682
5.
 
Canon R6 Full Frame 20.0 5472 36484k/60p24.214.3339490
6.
 
Leica S Typ 006 Medium Format 37.5 7500 5000none23.912.282476
7.
 
Nikon D3S Full Frame 12.1 4256 2832720/24p23.512.0325382
8.
 
Nikon D750 Full Frame 24.2 6016 40161080/60p24.814.5295693
9.
 
Nikon D780 Full Frame 24.3 6048 40244K/30p25.314.3287795
10.
 
Nikon Z5 Full Frame 24.2 6016 40164K/30p25.314.3292995
11.
 
Nikon Z6 Full Frame 24.3 6048 40244K/30p25.314.3329995
12.
 
Nikon Z7 Full Frame 45.4 8256 55044K/30p26.314.6266899
13.
 
Nikon Z7 II Full Frame 45.4 8256 55044K/60p26.314.72841100
14.
 
Nikon Zf Full Frame 24.3 6048 40244K/60p25.414.7324396
15.
 
Panasonic S5 Full Frame 24.0 6000 40004K/60p25.114.5269794
16.
 
Pentax 645Z Medium Format 51.1 8256 61921080/60i26.014.74505101
17.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The Z6 II indeed provides movie recording capabilities, while the 645D does not. The highest resolution format that the Z6 II can use is 4K/60p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the Z6 II has an electronic viewfinder (3690k dots), while the 645D 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 viewfinder in the Z6 II offers a wider field of view (100%) than the one in the 645D (98%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the Z6 II has a higher magnification (0.80x vs 0.78x), 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 645D 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 Y3.2 / 2100 tilting Y 1/8000s 14.0/s n Y
2.
 
Pentax 645Doptical Y3.0 / 921 fixed n 1/4000s 1.1/s n n
3.
 
Canon 1D Mark IVoptical Y3.0 / 920 fixed n 1/8000s 10.0/s n n
4.
 
Canon 1D Xoptical Y3.2 / 1040 fixed n 1/8000s 14.0/s n n
5.
 
Canon R63690 n3.0 / 1620 swivel Y 1/8000s 12.0/s n Y
6.
 
Leica S Typ 006optical Y3.0 / 922 fixed n 1/4000s 1.5/s n n
7.
 
Nikon D3Soptical Y3.0 / 921 fixed n 1/8000s 11.0/s n n
8.
 
Nikon D750optical Y3.2 / 1229 tilting n 1/4000s 6.0/s Y n
9.
 
Nikon D780optical Y3.2 / 2359 tilting Y 1/8000s 12.0/s n n
10.
 
Nikon Z53690 n3.2 / 1040 tilting Y 1/8000s 4.5/s n Y
11.
 
Nikon Z63690 Y3.2 / 2100 tilting Y 1/8000s 12.0/s n Y
12.
 
Nikon Z73690 Y3.2 / 2100 tilting Y 1/8000s 9.0/s n Y
13.
 
Nikon Z7 II3690 Y3.2 / 2100 tilting Y 1/8000s 10.0/s n Y
14.
 
Nikon Zf3690 n3.2 / 2100 swivel Y 1/8000s 14.0/s n Y
15.
 
Panasonic S52360 n3.0 / 1840 swivel Y 1/8000s 7.0/s n Y
16.
 
Pentax 645Zoptical Y3.2 / 1037 tilting n 1/4000s 3.0/s n n
17.
 
Sony A7 II2400 n3.0 / 1230 tilting n 1/8000s 5.0/s n Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that differentiates the Z6 II and the 645D is in-body image stabilization (IBIS). The Z6 II reduces the risk of handshake-induced blur with all attached lenses, while the 645D offers no blur reduction with lenses that themselves do not provide optical image stabilization.

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 645D 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 645D 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 645D cannot take advantage of Ultra High Speed SD 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 II and Pentax 645D 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 IIYstereo / monoYYmicro3.2Y-Y
2.
 
Pentax 645DYstereo / ----2.0---
3.
 
Canon 1D Mark IVYstereo / -Y-mini2.0---
4.
 
Canon 1D XYmono / -Y-mini2.0---
5.
 
Canon R6Ymono / monoYYmicro3.2Y-Y
6.
 
Leica S Typ 006Y- / ---mini2.0---
7.
 
Nikon D3SYstereo / ---mini2.0---
8.
 
Nikon D750Ystereo / monoYYmini2.0Y--
9.
 
Nikon D780Ystereo / monoYYmini3.1Y-Y
10.
 
Nikon Z5Ystereo / monoYYmicro3.2Y-Y
11.
 
Nikon Z6Ystereo / monoYYmicro3.1Y-Y
12.
 
Nikon Z7Ystereo / monoYYmicro3.1Y-Y
13.
 
Nikon Z7 IIYstereo / monoYYmicro3.2Y-Y
14.
 
Nikon ZfYstereo / monoYYmicro3.2Y-Y
15.
 
Panasonic S5Ystereo / monoYYmicro3.2Y-Y
16.
 
Pentax 645ZYstereo / monoY-mini3.0---
17.
 
Sony A7 IIYstereo / monoYYmicro2.0YY-

It is notable that the Z6 II offers wifi support, while the 645D 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 645D (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 645D has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the 645D was succeeded by the Pentax 645Z. Further information on the features and operation of the Z6 II and 645D can be found, respectively, in the Nikon Z6 II Manual (free pdf) or the online Pentax 645D Manual.

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Review summary

So how do things add up? Which of the two cameras – the Nikon Z6 II or the Pentax 645D – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

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Advantages of the Nikon Z6 II:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Better image quality: Scores substantially higher (12 points) in the DXO overall assessment.
  • More dynamic range: Captures a larger spectrum of light and dark details (1.8 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (1.4 stops ISO advantage).
  • Broader imaging potential: Can record not only still images but also 4K/60p movies.
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More complete view: Has a viewfinder with a larger field of view (100% vs 98%).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.80x vs 0.78x).
  • 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 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (14 vs 1.1 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • More compact: Is smaller (134x101mm vs 156x117mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 775g or 52 percent) and hence easier to carry around.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • 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.
  • Faster buffer clearing: Supports Ultra High Speed (UHS-II) SDXC cards.
  • More affordable: Was introduced into a lower priced category (80 percent cheaper at launch).
  • More modern: Reflects 10 years and 7 months of technical progress since the 645D launch.

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Arguments in favor of the Pentax 645D:

  • More detail: Has more megapixels (39.5 vs 24.3MP), which boosts linear resolution by 25%.
  • 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 (800 versus 410) out of a single battery charge.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • More heavily discounted: Has been around for much longer (launched in March 2010).

If the count of relative strengths (bullet points above) is taken as a measure, the Z6 II is the clear winner of the match-up (27 : 6 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding 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 27:06 645D

How about other alternatives? Do the specifications of the Nikon Z6 II and the Pentax 645D 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 incomplete and does no justice, for example, to the way the Z6 II or the 645D perform in practice. 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 expert reviews 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 Z6 II4.5/5..4/589/1004.5/54.5/5 Oct 2020 1,999 amazon.com
2.
 
Pentax 645D5/5.......... Mar 2010 9,995ebay.com
3.
 
Canon 1D Mark IV5/5....89/100.... Oct 2009 4,999ebay.com
4.
 
Canon 1D X5/5......4.5/54.5/5 Oct 2011 6,799ebay.com
5.
 
Canon R65/5+ +4/590/1004.5/55/5 Jul 2020 2,499 amazon.com
6.
 
Leica S Typ 006............ Sep 2012 21,950ebay.com
7.
 
Nikon D3S5/5....89/1004.5/55/5 Oct 2009 5,199ebay.com
8.
 
Nikon D7505/5+ +4/590/1004.5/54.5/5 Sep 2014 2,299ebay.com
9.
 
Nikon D7805/5..5/587/1004.5/54.5/5 Jan 2020 2,299 amazon.com
10.
 
Nikon Z54/5..4/589/1004.5/54/5 Jul 2020 1,399 amazon.com
11.
 
Nikon Z65/5..5/589/1004.5/55/5 Aug 2018 1,999ebay.com
12.
 
Nikon Z75/5+4.8/589/1004.5/55/5 Aug 2018 3,399ebay.com
13.
 
Nikon Z7 II4.5/5..4.5/5..4.5/54.5/5 Oct 2020 2,999 amazon.com
14.
 
Nikon Zf4.5/5..4.5/590/1004.5/55/5 Sep 2023 1,999 amazon.com
15.
 
Panasonic S54.5/5+ +4.5/588/1004.5/54.5/5 Sep 2020 1,999 amazon.com
16.
 
Pentax 645Z5/5..3.5/5..4.5/55/5 Apr 2014 8,499ebay.com
17.
 
Sony A7 II5/5+4/582/1004.5/55/5 Nov 2014 1,999ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The assessments were made in relation to similar cameras of the same technological generation. Hence, a score should always be seen in the context of the camera's market launch date and its price, 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.

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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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    Specifications: Nikon Z6 II vs Pentax 645D

    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 645D
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Nikon Z mount lenses Pentax 645 mount lenses
    Launch Date October 2020 March 2010
    Launch Price USD 1,999 USD 9,995
    Sensor Specs Nikon Z6 II Pentax 645D
    Sensor Technology BSI-CMOS CCD
    Sensor Format Full Frame Sensor Medium Format Sensor
    Sensor Size 35.9 x 23.9 mm 44.0 x 33.0 mm
    Sensor Area 858.01 mm2 1452 mm2
    Sensor Diagonal 43.1 mm 55 mm
    Crop Factor 1.0x 0.79x
    Sensor Resolution 24.3 Megapixels 39.5 Megapixels
    Image Resolution 6048 x 4024 pixels 7264 x 5440 pixels
    Pixel Pitch 5.94 μm 6.06 μm
    Pixel Density 2.84 MP/cm2 2.72 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 4K/60p Video no Video
    ISO Setting 100 - 51,200 ISO 100 - 1,600 ISO
    ISO Boost 50 - 204,800 ISO no Enhancement
    Image Processor DUAL EXPEED 6 PRIME II
    DXO Sensor Quality (score) 94 82
    DXO Color Depth (bits) 25 24.6
    DXO Dynamic Range (EV) 14.4 12.6
    DXO Low Light (ISO) 3303 1262
    Screen Specs Nikon Z6 II Pentax 645D
    Viewfinder Type Electronic viewfinder Optical viewfinder
    Viewfinder Field of View 100% 98%
    Viewfinder Magnification 0.80x 0.78x
    Viewfinder Resolution 3690k dots
    Top-Level Screen Control Panel Control Panel
    LCD Framing 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 645D
    Focus System On-Sensor Phase-detect Phase-detect AF
    Manual Focusing AidFocus Peakingno Peaking Feature
    Continuous Shooting 14 shutter flaps/s 1.1 shutter flaps/s
    Shutter Life Expectancy200 000 actuations50 000 actuations
    Electronic Shutterup to 1/8000sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationIn-body stabilizationLens stabilization only
    Fill Flash no On-Board Flash no On-Board 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 no
    Connectivity Specs Nikon Z6 II Pentax 645D
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 3.2 USB 2.0
    HDMI Port micro HDMI no 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 II Pentax 645D
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Nikon EN-EL15c Pentax D-LI90
    Battery Life (CIPA)410 shots per charge800 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)
    156 x 117 x 119 mm
    (6.1 x 4.6 x 4.7 in)
    Camera Weight 705 g (24.9 oz) 1480 g (52.2 oz)
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