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Nikon D5 vs Pentax 645Z

The Nikon D5 and the Pentax 645Z are two professional cameras that were officially introduced, respectively, in January 2016 and April 2014. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (D5) and a medium format (645Z) sensor. The Nikon has a resolution of 20.7 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 D5
versus
Pentax 645Z
Nikon D5   Pentax 645Z
Digital single lens reflex Digital single lens reflex
Nikon F mount lenses Pentax 645 mount lenses
20.7 MP – Full Frame sensor 51.1 MP – Medium Format sensor
4K/30p Video 1080/60i Video
ISO 100-102,400 (50 - 3,280,000) ISO 100-204,800
Optical viewfinder Optical viewfinder
3.2" LCD – 2359k dots 3.2" LCD – 1037k dots
Fixed touchscreen Tilting screen (no touchscreen)
14 shutter flaps per second 3 shutter flaps per second
Weathersealed bodyWeathersealed body
3780 shots per battery charge650 shots per battery charge
160 x 159 x 92 mm, 1415 g 156 x 117 x 123 mm, 1550 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D5 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.

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Body comparison

The physical size and weight of the Nikon D5 and the Pentax 645Z 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 width, height and depth dimensions are rounded to the nearest millimeter.

Size Nikon D5 vs Pentax 645Z
Compare D5 versus 645Z top
Comparison D5 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 smaller (28 percent) than the Nikon D5. However, the 645Z is markedly heavier (10 percent) than the D5. 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 D5 gets 3780 shots out of its Nikon EN-EL18a battery, while the 645Z can take 650 images on a single charge of its Pentax D-LI90 power pack. As can be seen in the images above, the D5 has a battery grip built in. This facilitates image-taking in portrait orientation and gives it additional battery power.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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.

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Body Specifications
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D5 160 mm 159 mm 92 mm 1415 g 3780 Y Jan 2016 6,499ebay.com
2.
 
Pentax 645Z 156 mm 117 mm 123 mm 1550 g 650 Y Apr 2014 8,499ebay.com
3.
 
Canon 1D X Mark II 158 mm 168 mm 83 mm 1530 g 1210 Y Feb 2016 5,999ebay.com
4.
 
Canon 5DS 152 mm 116 mm 76 mm 930 g 700 Y Feb 2015 3,699ebay.com
5.
 
Canon 5DS R 152 mm 116 mm 76 mm 930 g 700 Y Feb 2015 3,699ebay.com
6.
 
Hasselblad X1D 150 mm 98 mm 71 mm 725 g .. Y Jun 2016 8,995ebay.com
7.
 
Leica SL 147 mm 104 mm 39 mm 847 g 400 Y Oct 2015 7,450ebay.com
8.
 
Nikon D6 160 mm 163 mm 92 mm 1270 g 3580 Y Feb 2020 6,499 amazon.com
9.
 
Nikon D850 146 mm 124 mm 79 mm 1005 g 1840 Y Jul 2017 3,299 amazon.com
10.
 
Nikon D4S 160 mm 157 mm 91 mm 1350 g 3020 Y Feb 2014 6,499ebay.com
11.
 
Nikon D750 141 mm 113 mm 78 mm 750 g 1230 Y Sep 2014 2,299ebay.com
12.
 
Nikon D610 141 mm 113 mm 82 mm 850 g 900 Y Oct 2013 1,999ebay.com
13.
 
Nikon D4 160 mm 157 mm 91 mm 1340 g 2600 Y Jan 2012 5,999ebay.com
14.
 
Nikon D600 141 mm 113 mm 82 mm 850 g 900 Y Sep 2012 2,099ebay.com
15.
 
Nikon D3S 160 mm 157 mm 88 mm 1240 g 4200 Y Oct 2009 5,199ebay.com
16.
 
Nikon D3X 160 mm 157 mm 88 mm 1260 g 4400 Y Dec 2008 7,999ebay.com
17.
 
Pentax 645D 156 mm 117 mm 119 mm 1480 g 800 Y Mar 2010 9,995ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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The price is, of course, an important factor in any camera decision. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The D5 was launched at a somewhat lower price (by 24 percent) than the 645Z, which makes it more attractive for photographers on a tight budget. 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 sensor inside a digital camera is one of the key determinants of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Nikon D5 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 D5 has a native 3:2 aspect ratio, while the one in the 645Z offers a 4:3 aspect.

Nikon D5 and Pentax 645Z sensor measures

With 51.1MP, the 645Z offers a higher resolution than the D5 (20.7MP), but the 645Z has smaller individual pixels (pixel pitch of 5.30μm versus 6.44μm for the D5). It is noteworthy in this context that the D5 is a somewhat more recent model (by 1 year and 8 months) than the 645Z, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the 645Z has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Pentax 645Z implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 645Z for good quality output (200 dots per inch) amounts to 41.3 x 31 inches or 104.9 x 78.6 cm, for very good quality (250 dpi) 33 x 24.8 inches or 83.9 x 62.9 cm, and for excellent quality (300 dpi) 27.5 x 20.6 inches or 69.9 x 52.4 cm. The corresponding values for the Nikon D5 are 27.9 x 18.6 inches or 71 x 47.1 cm for good quality, 22.4 x 14.8 inches or 56.8 x 37.7 cm for very good quality, and 18.6 x 12.4 inches or 47.3 x 31.4 cm for excellent quality prints.

The Nikon D5 has a native sensitivity range from ISO 100 to ISO 102400, which can be extended to ISO 50-3280000. The corresponding ISO settings for the Pentax 645Z are ISO 100 to ISO 204800 (no boost).

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

D5 versus 645Z 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 consideration, the 645Z offers substantially better image quality than the D5 (overall score 13 points higher). The advantage is based on 0.9 bits higher color depth, 2.4 EV in additional dynamic range, and 0.9 stops in additional low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

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Sensor Characteristics
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Nikon D5 Full Frame 20.7 5588 37124K/30p25.112.3234388
2.
 
Pentax 645Z Medium Format 51.1 8256 61921080/60i26.014.74505101
3.
 
Canon 1D X Mark II Full Frame 20.0 5472 36484K/60p24.113.5320788
4.
 
Canon 5DS Full Frame 50.3 8688 57921080/30p24.712.4238187
5.
 
Canon 5DS R Full Frame 50.3 8688 57921080/30p24.612.4230886
6.
 
Hasselblad X1D Medium Format 51.3 8272 62001080/25p26.214.84489102
7.
 
Leica SL Full Frame 24.0 6000 40004K/30p25.013.4182188
8.
 
Nikon D6 Full Frame 20.7 5568 37124K/30p25.314.3288695
9.
 
Nikon D850 Full Frame 45.4 8256 55044K/30p26.414.82660100
10.
 
Nikon D4S Full Frame 16.2 4928 32801080/60p24.413.3307489
11.
 
Nikon D750 Full Frame 24.2 6016 40161080/60p24.814.5295693
12.
 
Nikon D610 Full Frame 24.2 6016 40161080/30p25.114.4292594
13.
 
Nikon D4 Full Frame 16.2 4928 32801080/30p24.713.1296589
14.
 
Nikon D600 Full Frame 24.2 6016 40161080/30p25.114.2298094
15.
 
Nikon D3S Full Frame 12.1 4256 2832720/24p23.512.0325382
16.
 
Nikon D3X Full Frame 24.4 6048 4032none24.713.7199288
17.
 
Pentax 645D Medium Format 39.5 7264 5440none24.612.6126282
Note: DXO values in italics represent estimates based on sensor size and age.
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Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the D5 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

Apart from body and sensor, cameras can and do differ across a variety of features. The D5 and the 645Z are similar in the sense that both have an optical viewfinder. The latter is useful for getting a clear image for framing even in brightly lit environments. The viewfinder in the D5 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. On the other hand, the viewfinder of the 645Z has a higher magnification (0.78x vs 0.72x), 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 D5 and Pentax 645Z along with similar information for a selection of comparators.

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Core Features
# image 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 D5optical Y3.2 / 2359 fixed Y 1/8000s 14.0/s n n
2.
 
Pentax 645Zoptical Y3.2 / 1037 tilting n 1/4000s 3.0/s n n
3.
 
Canon 1D X Mark IIoptical Y3.2 / 1620 fixed Y 1/8000s 16.0/s n n
4.
 
Canon 5DSoptical Y3.2 / 1040 fixed n 1/8000s 5.0/s n n
5.
 
Canon 5DS Roptical Y3.2 / 1040 fixed n 1/8000s 5.0/s n n
6.
 
Hasselblad X1D2360 n3.0 / 920 fixed Y 1/2000s 2.3/s n n
7.
 
Leica SL4400 Y3.0 / 1040 fixed Y 1/8000s 11.0/s n n
8.
 
Nikon D6optical Y3.2 / 2359 fixed Y 1/8000s 14.0/s n n
9.
 
Nikon D850optical Y3.2 / 2359 tilting Y 1/8000s 9.0/s n n
10.
 
Nikon D4Soptical Y3.2 / 921 fixed n 1/8000s 11.0/s n n
11.
 
Nikon D750optical Y3.2 / 1229 tilting n 1/4000s 6.0/s Y n
12.
 
Nikon D610optical Y3.2 / 921 fixed n 1/4000s 6.0/s Y n
13.
 
Nikon D4optical Y3.2 / 921 fixed n 1/8000s 11.0/s n n
14.
 
Nikon D600optical Y3.0 / 921 fixed n 1/4000s 5.5/s Y n
15.
 
Nikon D3Soptical Y3.0 / 921 fixed n 1/8000s 11.0/s n n
16.
 
Nikon D3Xoptical Y3.0 / 922 fixed n 1/8000s 5.0/s n n
17.
 
Pentax 645Doptical Y3.0 / 921 fixed n 1/4000s 1.1/s n n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
padding

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The D5 has a touchscreen, while the 645Z has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The Nikon D5 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 D5 writes its imaging data to Compact Flash or XQD cards, while the 645Z uses SDXC cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails.

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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 D5 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
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Nikon D5Ystereo / monoYYmini3.0---
2.
 
Pentax 645ZYstereo / monoY-mini3.0---
3.
 
Canon 1D X Mark IIYmono / monoYYmini3.0---
4.
 
Canon 5DSYmono / monoY-mini3.0---
5.
 
Canon 5DS RYmono / monoY-mini3.0---
6.
 
Hasselblad X1DYstereo / monoYYmini3.0Y--
7.
 
Leica SLYstereo / monoYYfull3.0Y--
8.
 
Nikon D6Ystereo / monoYYmini3.1Y-Y
9.
 
Nikon D850Ystereo / monoYYmini3.0YYY
10.
 
Nikon D4SYmono / monoYYmini2.0---
11.
 
Nikon D750Ystereo / monoYYmini2.0Y--
12.
 
Nikon D610Ymono / monoYYmini2.0---
13.
 
Nikon D4Ymono / monoYYmicro2.0---
14.
 
Nikon D600Ymono / monoYYmini2.0---
15.
 
Nikon D3SYstereo / ---mini2.0---
16.
 
Nikon D3XY- / ---mini2.0---
17.
 
Pentax 645DYstereo / ----2.0---
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It is notable that the D5 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.

Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.

Both the D5 and the 645Z have been discontinued, but can regularly be found used on ebay. The D5 was replaced by the Nikon D6, while the 645Z does not have a direct successor. Further information on the features and operation of the D5 and 645Z can be found, respectively, in the Nikon D5 Manual (free pdf) or the online Pentax 645Z Manual.

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Review summary

So what is the bottom line? Which of the two cameras – the Nikon D5 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 D5:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60i).
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • More complete view: Has a viewfinder with a larger field of view (100% vs 98%).
  • More detailed LCD: Has a higher resolution rear screen (2359k 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 (14 vs 3 flaps/sec) to capture the decisive moment.
  • More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
  • Longer lasting: Can take more shots (3780 versus 650) on a single battery charge.
  • More affordable: Was introduced into a lower priced segment (24 percent cheaper at launch).
  • More modern: Is somewhat more recent (announced 1 year and 8 months after the 645Z).

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Advantages of the Pentax 645Z:

  • More detail: Has more megapixels (51.1 vs 20.7MP), which boosts linear resolution by 54%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (13 points) in the DXO overall evaluation.
  • More dynamic range: Captures a broader range of light and dark details (2.4 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (0.9 stops ISO advantage).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.72x).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • More compact: Is smaller (156x117mm vs 160x159mm) and will fit more readily into a bag.
  • More heavily discounted: Has been on the market for longer (launched in April 2014).

If the count of individual advantages (bullet points above) is taken as a guide, the D5 emerges as the winner of the contest (12 : 9 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.

D5 12:09 645Z

How about other alternatives? Do the specifications of the Nikon D5 and the Pentax 645Z place the cameras among the top in their class? Find out in the latest Best DSLR Camera listing whether the two cameras rank among the cream of the crop.

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it says little about, for example, the shooting experience and imaging performance of the D5 and the 645Z in practical situations. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews

This is why expert reviews are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

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Expert Camera Reviews
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D5....4/589/1004.5/55/5 Jan 2016 6,499ebay.com
2.
 
Pentax 645Z5/5..3.5/5..4.5/55/5 Apr 2014 8,499ebay.com
3.
 
Canon 1D X Mark II....4.5/589/1004.5/54.5/5 Feb 2016 5,999ebay.com
4.
 
Canon 5DS..+..83/1004.5/54.5/5 Feb 2015 3,699ebay.com
5.
 
Canon 5DS R5/5+..83/1005/54.5/5 Feb 2015 3,699ebay.com
6.
 
Hasselblad X1D..o..81/100..4/5 Jun 2016 8,995ebay.com
7.
 
Leica SL4/5..4/584/1004.5/54/5 Oct 2015 7,450ebay.com
8.
 
Nikon D6....4/5..4.5/54.5/5 Feb 2020 6,499 amazon.com
9.
 
Nikon D8504.5/5+ +5/589/1004.5/55/5 Jul 2017 3,299 amazon.com
10.
 
Nikon D4S5/5......4.5/54.5/5 Feb 2014 6,499ebay.com
11.
 
Nikon D7505/5+ +4/590/1004.5/54.5/5 Sep 2014 2,299ebay.com
12.
 
Nikon D6104/5+ +..87/1004.5/54.5/5 Oct 2013 1,999ebay.com
13.
 
Nikon D4........4.5/54.5/5 Jan 2012 5,999ebay.com
14.
 
Nikon D6004/5+ +..87/1005/54.5/5 Sep 2012 2,099ebay.com
15.
 
Nikon D3S5/5....89/1004.5/55/5 Oct 2009 5,199ebay.com
16.
 
Nikon D3X......86/1004/55/5 Dec 2008 7,999ebay.com
17.
 
Pentax 645D5/5.......... Mar 2010 9,995ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. 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? 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 D5 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 D5 Pentax 645Z
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Nikon F mount lenses Pentax 645 mount lenses
    Launch Date January 2016 April 2014
    Launch Price USD 6,499 USD 8,499
    Sensor Specs Nikon D5 Pentax 645Z
    Sensor Technology 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 20.7 Megapixels 51.1 Megapixels
    Image Resolution 5588 x 3712 pixels 8256 x 6192 pixels
    Pixel Pitch 6.44 μm 5.30 μm
    Pixel Density 2.42 MP/cm2 3.56 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 4K/30p Video 1080/60i Video
    ISO Setting 100 - 102,400 ISO 100 - 204,800 ISO
    ISO Boost 50 - 3,280,000 ISO no Enhancement
    Image Processor EXPEED 5 PRIME III
    DXO Sensor Quality (score) 88 101
    DXO Color Depth (bits) 25.1 26.0
    DXO Dynamic Range (EV) 12.3 14.7
    DXO Low Light (ISO) 2343 4505
    Screen Specs Nikon D5 Pentax 645Z
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 100% 98%
    Viewfinder Magnification 0.72x 0.78x
    Top-Level Screen Control Panel Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.2inch 3.2inch
    LCD Resolution 2359k dots 1037k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Nikon D5 Pentax 645Z
    Focus System Phase-detect AF Phase-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/4000s
    Continuous Shooting 14 shutter flaps/s 3 shutter flaps/s
    Shutter Life Expectancy400 000 actuations100 000 actuations
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium CF or XQD cards SDXC cards
    Single or Dual Card Slots Dual card slots Dual card slots
    Connectivity Specs Nikon D5 Pentax 645Z
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector USB 3.0 USB 3.0
    HDMI Port mini HDMI mini HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket Headphone port no Headphone port
    Wifi Support no Wifi no Wifi
    Body Specs Nikon D5 Pentax 645Z
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Nikon EN-EL18a Pentax D-LI90
    Battery Life (CIPA)3780 shots per charge650 shots per charge
    Body Dimensions 160 x 159 x 92 mm
    (6.3 x 6.3 x 3.6 in)
    156 x 117 x 123 mm
    (6.1 x 4.6 x 4.8 in)
    Camera Weight 1415 g (49.9 oz) 1550 g (54.7 oz)
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