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Nikon Z7 vs Pentax 645Z

The Nikon Z7 and the Pentax 645Z are two digital cameras that were announced, respectively, in August 2018 and April 2014. The Z7 is a mirrorless interchangeable lens camera, while the 645Z is a DSLR. The cameras are based on a full frame (Z7) and a medium format (645Z) sensor. The Nikon has a resolution of 45.4 megapixels, whereas the Pentax provides 51.1 MP.

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

Headline Specifications
Nikon Z7 versus Pentax 645Z
Nikon Z7 Pentax 645Z
Mirrorless system camera Digital single lens reflex
Nikon Z mount lenses Pentax 645 mount lenses
45.4 MP, Full Frame Sensor 51.1 MP, Medium Format Sensor
4K/30p Video 1080/60i Video
ISO 64-25,600 (32 - 102,400) ISO 100-204,800
Electronic viewfinder (3690k dots) Optical viewfinder
3.2 LCD, 2100k dots 3.2 LCD, 1037k dots
Tilting touchscreen Tilting screen (not touch-sensitive)
9 shutter flaps per second 3 shutter flaps per second
In-body stabilizationLens stabilization only
Weathersealed bodyWeathersealed body
330 shots per battery charge650 shots per battery charge
134 x 101 x 67 mm, 675 g 156 x 117 x 123 mm, 1550 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon Z7 and the Pentax 645Z? 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

An illustration of the physical size and weight of the Nikon Z7 and the Pentax 645Z is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth measures are rounded to the nearest millimeter.

Size Nikon Z7 vs Pentax 645Z
Compare Z7 versus 645Z top
Comparison Z7 or 645Z rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax 645Z is notably larger (35 percent) than the Nikon Z7. Moreover, the 645Z is substantially heavier (130 percent) than the Z7. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the Z7 gets 330 shots out of its EN-EL15b battery, while the 645Z can take 650 images on a single charge of its D-LI90 power pack. The power pack in the Z7 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. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also 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 1
Weather
Sealing
Camera
Launch 2
Launch
Price (USD)
Street
Price
 
Nikon Z7 5.3 in 4.0 in 2.6 in 23.8 oz 330 Y Aug 2018 3,399i
 
Pentax 645Z 6.1 in 4.6 in 4.8 in 54.7 oz 650 Y Apr 2014 8,499 i
 
Canon 5DS 6.0 in 4.6 in 3.0 in 32.8 oz 700 Y Feb 2015 3,699 i
 
Canon 5DS R 6.0 in 4.6 in 3.0 in 32.8 oz 700 Y Feb 2015 3,699 i
 
Hasselblad X1D 5.9 in 3.9 in 2.8 in 25.6 oz .. Y Jun 2016 8,995i
 
Leica SL 5.8 in 4.1 in 1.5 in 29.9 oz 400 Y Oct 2015 7,450i
 
Nikon Z7 II 5.3 in 4.0 in 2.8 in 24.9 oz 420 Y Oct 2020 2,999 i
 
Nikon Z6 5.3 in 4.0 in 2.6 in 23.8 oz 310 Y Aug 2018 1,999 i
 
Nikon D850 5.7 in 4.9 in 3.1 in 35.5 oz 1840 Y Jul 2017 3,299 i
 
Panasonic S1R 5.9 in 4.3 in 3.8 in 35.8 oz 380 Y Feb 2019 3,699 i
 
Pentax 645D 6.1 in 4.6 in 4.7 in 52.2 oz 800 Y Mar 2010 9,995i
 
Sony A7R III 5.0 in 3.8 in 2.9 in 22.9 oz 650 Y Oct 2017 3,199i
 
Sony A9 5.0 in 3.8 in 2.5 in 23.7 oz 650 Y Apr 2017 4,499i
 
Sony A99 II 5.6 in 4.1 in 3.0 in 29.9 oz 490 Y Sep 2016 3,199 i
 
Sony A7R II 5.0 in 3.8 in 2.4 in 22.0 oz 290 Y Jun 2015 3,199i
 
Sony A7S II 5.0 in 3.8 in 2.4 in 22.1 oz 370 Y Sep 2015 2,999i
 
Sony A99 5.8 in 4.4 in 3.1 in 28.6 oz 500 Y Sep 2012 2,799i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.

Any camera decision will obviously take relative prices into account. 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 Z7 was launched at a markedly lower price (by 60 percent) than the 645Z, 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 imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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 tend to be more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Nikon Z7 features a full frame sensor and the Pentax 645Z a medium format sensor. The sensor area in the 645Z is 67 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 Z7 has a native 3:2 aspect ratio, while the one in the 645Z offers a 4:3 aspect.

Nikon Z7 and Pentax 645Z sensor measures

With 51.1MP, the 645Z offers a higher resolution than the Z7 (45.4MP), but the 645Z nevertheless has larger individual pixels (pixel pitch of 5.30μm versus 4.35μm for the Z7) due to its larger sensor. However, the Z7 is a much more recent model (by 4 years and 4 months) than the 645Z, 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 neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.

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

The Nikon Z7 has a native sensitivity range from ISO 64 to ISO 25600, which can be extended to ISO 32-102400. The corresponding ISO settings for the Pentax 645Z are ISO 100 to ISO 204800 (no boost).

Z7 versus 645Z MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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"). The Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. 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
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
 
Nikon Z7 Full Frame 45.4 8256 55044K/30p26.314.6266899
 
Pentax 645Z Medium Format 51.1 8256 61921080/60i26.014.74505101
 
Canon 5DS Full Frame 50.3 8688 57921080/30p24.712.4238187
 
Canon 5DS R Full Frame 50.3 8688 57921080/30p24.612.4230886
 
Hasselblad X1D Medium Format 51.3 8272 62001080/25p26.214.84489102
 
Leica SL Full Frame 24.0 6000 40004K/30p25.013.4182188
 
Nikon Z7 II Full Frame 45.4 8256 55044K/60p........
 
Nikon Z6 Full Frame 24.3 6048 40244K/30p25.314.3329995
 
Nikon D850 Full Frame 45.4 8256 55044K/30p26.414.82660100
 
Panasonic S1R Full Frame 46.7 8368 55844K/60p26.414.13525100
 
Pentax 645D Medium Format 39.5 7264 5440none24.612.6126282
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792
 
Sony A99 II Full Frame 42.2 7952 53044K/30p25.413.4231792
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
 
Sony A99 Full Frame 24.0 6000 40001080/60p25.014.0155589

Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the Z7 provides a higher video resolution than the 645Z. It can shoot video footage at 4K/30p, while the Pentax is limited to 1080/60i.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the Z7 has an electronic viewfinder (3690k dots), while the 645Z 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 Z7 offers a wider field of view (100%) than the one in the 645Z (98%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the Z7 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 following table reports on some other key feature differences and similarities of the Nikon Z7, the Pentax 645Z, and comparable cameras.

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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
 
Nikon Z73690 Y 3.2 2100 tilting Y 1/8000s 9.0 n Y
 
Pentax 645Zoptical Y 3.2 1037 tilting n 1/4000s 3.0 n n
 
Canon 5DSoptical Y 3.2 1040 fixed n 1/8000s 5.0 n n
 
Canon 5DS Roptical Y 3.2 1040 fixed n 1/8000s 5.0 n n
 
Hasselblad X1D2360 n 3.0 920 fixed Y 1/2000s 2.3 n n
 
Leica SL4400 Y 3.0 1040 fixed Y 1/8000s 11.0 n n
 
Nikon Z7 II3690 Y 3.2 2100 tilting Y 1/8000s 10.0 n Y
 
Nikon Z63690 Y 3.2 2100 tilting Y 1/8000s 12.0 n Y
 
Nikon D850optical Y 3.2 2359 tilting Y 1/8000s 9.0 n n
 
Panasonic S1R5760 Y 3.2 2100 full-flex Y 1/8000s 9.0 n Y
 
Pentax 645Doptical Y 3.0 921 fixed n 1/4000s 1.1 n n
 
Sony A7R III3686 n 3.0 1440 tilting Y 1/8000s 10.0 n Y
 
Sony A93686 n 3.0 1440 tilting Y 1/8000s 20.0 n Y
 
Sony A99 II2400 Y 3.0 1229 full-flex n 1/8000s 12.0 n Y
 
Sony A7R II2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y
 
Sony A7S II2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y
 
Sony A992359 Y 3.0 1229 full-flex n 1/8000s 6.0 n Y

One feature that differentiates the Z7 and the 645Z is in-body image stabilization (IBIS). The Z7 reduces the risk of handshake-induced blur with all attached lenses, while the 645Z 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 Z7 is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Nikon Z7 and the Pentax 645Z both have an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

The Z7 writes its imaging data to XQD cards, while the 645Z uses SDXC cards. The 645Z features dual card slots, which can be very useful in case a memory card fails. In contrast, the Z7 only has one slot.

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Connectivity comparison

For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Nikon Z7 and Pentax 645Z 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
 
Nikon Z7YstereomonoYYmicro3.1Y-Y
 
Pentax 645ZYstereomonoY-mini3.0---
 
Canon 5DSYmonomonoY-mini3.0---
 
Canon 5DS RYmonomonoY-mini3.0---
 
Hasselblad X1DYstereomonoYYmini3.0Y--
 
Leica SLYstereomonoYYfull3.0Y--
 
Nikon Z7 IIYstereomonoYYmicro3.2Y-Y
 
Nikon Z6YstereomonoYYmicro3.1Y-Y
 
Nikon D850YstereomonoYYmini3.0YYY
 
Panasonic S1RYstereomonoYYfull3.1Y-Y
 
Pentax 645DYstereo----2.0---
 
Sony A7R IIIYstereomonoYYmicro3.1YYY
 
Sony A9YstereomonoYYmicro2.0YYY
 
Sony A99 IIYstereomonoYYmicro2.0YYY
 
Sony A7R IIYstereomonoYYmicro2.0YY-
 
Sony A7S IIYstereomonoYYmicro2.0YY-
 
Sony A99YstereomonoYYmini2.0---

It is notable that the Z7 has a headphone jack, which is not present on the 645Z 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 645Z (unlike the Z7) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The 645Z is a recent model that features in the current product line-up of Pentax. In contrast, the Z7 has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the Z7 was succeeded by the Nikon Z7 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 how do things add up? Which of the two cameras – the Nikon Z7 or the Pentax 645Z – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.

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Arguments in favor of the Nikon Z7:

  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60i).
  • 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.
  • 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).
  • More detailed LCD: Has a higher resolution rear screen (2100k vs 1037k dots).
  • 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 (9 vs 3 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 875g or 56 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.
  • 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 affordable: Was introduced into a lower priced category (60 percent cheaper at launch).
  • More modern: Reflects 4 years and 4 months of technical progress since the 645Z launch.

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Reasons to prefer the Pentax 645Z:

  • Better low-light sensitivity: Can shoot in dim conditions (0.8 stops ISO advantage).
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Longer lasting: Gets more shots (650 versus 330) out of a single battery charge.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More heavily discounted: Has been around for much longer (launched in April 2014).

If the count of individual advantages (bullet points above) is taken as a guide, the Z7 is the clear winner of the match-up (20 : 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 wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

Z7 20:06 645Z

How about other alternatives? Do the specifications of the Nikon Z7 and the Pentax 645Z 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 partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the Z7 or the 645Z. 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 where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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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Review Scores
  Camera
Model
camera
  labs  
dp
review  
ephoto
  zine  
imaging
resource
photography
  blog  
Camera
Launch
Launch
Price (USD)
Street
Price
 
Nikon Z7+89/1004.5/54.5/55/5 Aug 2018 3,399i
 
Pentax 645Z....4.5/55/55/5 Apr 2014 8,499 i
 
Canon 5DS+83/1004.5/55/54.5/5 Feb 2015 3,699 i
 
Canon 5DS R+83/1005/55/54.5/5 Feb 2015 3,699 i
 
Hasselblad X1Do81/100....4/5 Jun 2016 8,995i
 
Leica SL..84/1004.5/54/54/5 Oct 2015 7,450i
 
Nikon Z7 II.......... Oct 2020 2,999 i
 
Nikon Z6....4.5/54.5/55/5 Aug 2018 1,999 i
 
Nikon D850+ +89/1004.5/55/55/5 Jul 2017 3,299 i
 
Panasonic S1R..89/1004.5/55/54.5/5 Feb 2019 3,699 i
 
Pentax 645D......4.5/5.. Mar 2010 9,995i
 
Sony A7R III+ +90/1004.5/55/55/5 Oct 2017 3,199i
 
Sony A9+ +89/1005/55/55/5 Apr 2017 4,499i
 
Sony A99 II..85/1004.5/54.5/54.5/5 Sep 2016 3,199 i
 
Sony A7R II+ +90/1005/54.5/55/5 Jun 2015 3,199i
 
Sony A7S II+..4.5/55/55/5 Sep 2015 2,999i
 
Sony A99..84/1004.5/5o4.5/5 Sep 2012 2,799i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated 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 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.

Nikon Z7:
Check Ebay offers
Pentax 645Z:
Check Amazon price

Other camera comparisons

Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Nikon Z7 vs Pentax 645Z

    Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.

    Camera Specifications
    Camera Model Nikon Z7 Pentax 645Z
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Nikon Z mount lenses Pentax 645 mount lenses
    Launch Date August 2018 April 2014
    Launch Price USD 3,399 USD 8,499
    Sensor Specs Nikon Z7 Pentax 645Z
    Sensor Technology BSI-CMOS CMOS
    Sensor Format Full Frame Sensor Medium Format Sensor
    Sensor Size 35.9 x 23.9 mm 43.8 x 32.8 mm
    Sensor Area 858.01 mm2 1436.64 mm2
    Sensor Diagonal 43.1 mm 54.7 mm
    Crop Factor 1.0x 0.79x
    Sensor Resolution 45.4 Megapixels 51.1 Megapixels
    Image Resolution 8256 x 5504 pixels 8256 x 6192 pixels
    Pixel Pitch 4.35 μm 5.30 μm
    Pixel Density 5.30 MP/cm2 3.56 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 4K/30p Video 1080/60i Video
    ISO Setting 64 - 25,600 ISO 100 - 204,800 ISO
    ISO Boost 32 - 102,400 ISO no Enhancement
    Image Processor EXPEED 6 PRIME III
    DXO Sensor Quality (score) 99 101
    DXO Color Depth (bits) 26.3 26.0
    DXO Dynamic Range (EV) 14.6 14.7
    DXO Low Light (ISO) 2668 4505
    Screen Specs Nikon Z7 Pentax 645Z
    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 Live View
    Rear LCD Size 3.2inch 3.2inch
    LCD Resolution 2100k dots 1037k dots
    LCD Attachment Tilting screen Tilting screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Nikon Z7 Pentax 645Z
    Focus System On-Sensor Phase-detect Phase-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/4000s
    Continuous Shooting 9 shutter flaps/s 3 shutter flaps/s
    Shutter Life Expectancy200 000 actuations100 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 XQD cards SDXC cards
    Second Storage Option Single card slot Dual card slots
    Connectivity Specs Nikon Z7 Pentax 645Z
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 3.1 USB 3.0
    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 Z7 Pentax 645Z
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type EN-EL15b D-LI90
    Battery Life (CIPA)330 shots per charge650 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)
    156 x 117 x 123 mm
    (6.1 x 4.6 x 4.8 in)
    Camera Weight 675 g (23.8 oz) 1550 g (54.7 oz)

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