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Nikon D5500 vs Pentax 645Z

The Nikon D5500 and the Pentax 645Z are two digital cameras that were officially introduced, respectively, in January 2015 and April 2014. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (D5500) and a medium format (645Z) sensor. The Nikon has a resolution of 24 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 D5500   Pentax 645Z
Nikon D5500 Pentax 645Z
Digital single lens reflex Digital single lens reflex
Nikon F mount lenses Pentax 645 mount lenses
24 MP, APS-C Sensor 51.1 MP, Medium Format Sensor
1080/60p Video 1080/60i Video
ISO 100-25600 ISO 100-204800
Optical viewfinder Optical viewfinder
3.2" LCD, 1037k dots 3.2" LCD, 1037k dots
Swivel touchscreen Tilting screen (not touch-sensitive)
5 shutter flaps per second 3 shutter flaps per second
Not weather sealedWeathersealed body
820 shots per battery charge650 shots per battery charge
124 x 97 x 70 mm, 420 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 D5500 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: Nikon D5500 vs Pentax 645Z

The side-by-side display below illustrates the physical size and weight of the Nikon D5500 and the Pentax 645Z. 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.

The D5500 can be obtained in two different colors (black, red), while the 645Z is only available in black.

Size Nikon D5500 vs Pentax 645Z
Compare D5500 versus 645Z top
Comparison D5500 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 considerably larger (52 percent) than the Nikon D5500. Moreover, the 645Z is substantially heavier (269 percent) than the D5500. It is noteworthy in this context that the 645Z is splash and dust-proof, while the D5500 does not feature any corresponding weather-sealing.

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

Concerning battery life, the D5500 gets 820 shots out of its EN-EL14a battery, while the 645Z can take 650 images on a single charge of its D-LI90 power pack.

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.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Nikon D5500» 4.9 in 3.8 in 2.8 in 14.8 oz 820 n Jan 2015 899- i Nikon D5500
 
Pentax 645Z« 6.1 in 4.6 in 4.8 in 54.7 oz 650 Y Apr 2014 8,499 i i Pentax 645Z
 
Canon M5« » 4.6 in 3.5 in 2.4 in 15.1 oz 295 n Sep 2016 979 i i Canon M5
 
Canon 5DS« » 6.0 in 4.6 in 3.0 in 32.8 oz 700 Y Feb 2015 3,699 i i Canon 5DS
 
Canon 5DS R« » 6.0 in 4.6 in 3.0 in 32.8 oz 700 Y Feb 2015 3,699 i i Canon 5DS R
 
Hasselblad X1D« » 5.9 in 3.9 in 2.8 in 25.6 oz .. Y Jun 2016 8,995 i i Hasselblad X1D
 
Leica SL« » 5.8 in 4.1 in 1.5 in 29.9 oz 400 Y Oct 2015 7,450 i i Leica SL
 
Nikon D5600« » 4.9 in 3.8 in 2.8 in 16.4 oz 970 n Nov 2016 699 i i Nikon D5600
 
Nikon D500« » 5.8 in 4.5 in 3.2 in 30.3 oz 1240 Y Jan 2016 1,999 i i Nikon D500
 
Nikon D3400« » 4.9 in 3.9 in 3.0 in 15.7 oz 1200 n Aug 2016 499- i Nikon D3400
 
Nikon D3300« » 4.9 in 3.9 in 3.0 in 15.2 oz 700 n Jan 2014 499- i Nikon D3300
 
Nikon D5300« » 4.9 in 3.9 in 3.0 in 16.9 oz 600 n Oct 2013 799- i Nikon D5300
 
Nikon D3200« » 4.9 in 3.8 in 3.0 in 17.8 oz 540 n Apr 2012 599- i Nikon D3200
 
Nikon D5200« » 5.1 in 3.9 in 3.1 in 19.6 oz 500 n Nov 2012 749- i Nikon D5200
 
Pentax 645D« » 6.1 in 4.6 in 4.7 in 52.2 oz 800 Y Mar 2010 9,995- i Pentax 645D
 
Samsung NX30« » 5.0 in 3.8 in 2.3 in 13.2 oz 360 n Jan 2014 999- i Samsung NX30
 
Sony A6300« » 4.7 in 2.6 in 1.9 in 14.3 oz 400 Y Feb 2016 999- i Sony A6300
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The D5500 was launched at a markedly lower price (by 89 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

 

Sensor comparison: Nikon D5500 vs Pentax 645Z

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to 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 D5500 features an APS-C sensor and the Pentax 645Z a medium format sensor. The sensor area in the 645Z is 292 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 0.79. The sensor in the D5500 has a native 3:2 aspect ratio, while the one in the 645Z offers a 4:3 aspect.

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors.

Nikon D5500 and Pentax 645Z sensor measures

With 51.1MP, the 645Z offers a higher resolution than the D5500 (24MP), but the 645Z nevertheless has larger individual pixels (pixel pitch of 5.30μm versus 3.91μm for the D5500) due to its larger sensor. However, the D5500 is a somewhat more recent model (by 8 months) than the 645Z, and its sensor might 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 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 inch or 104.9 x 78.6 cm, for very good quality (250 dpi) 33 x 24.8 inch or 83.9 x 62.9 cm, and for excellent quality (300 dpi) 27.5 x 20.6 inch or 69.9 x 52.4 cm. The corresponding values for the Nikon D5500 are 30 x 20 inch or 76.2 x 50.8 cm for good quality, 24 x 16 inch or 61 x 40.6 cm for very good quality, and 20 x 13.3 inch or 50.8 x 33.9 cm for excellent quality prints.

The Nikon D5500 has a native sensitivity range from ISO 100 to ISO 25600. The corresponding ISO settings for the Pentax 645Z are ISO 100 to ISO 204800 (no boost).

D5500 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"). Of the two cameras under consideration, the 645Z offers substantially better image quality than the D5500 (overall score 17 points higher). The advantage is based on 1.9 bits higher color depth, 0.7 EV in additional dynamic range, and 1.6 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.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
 
Nikon D5500» APS-C 24.0 6000 40001080/60p24.114.0143884Nikon D5500
 
Pentax 645Z« Medium Format 51.1 8256 61921080/60i26.014.74505101Pentax 645Z
 
Canon M5« » APS-C 24.0 6000 40001080/60p23.412.4126277Canon M5
 
Canon 5DS« » Full Frame 50.3 8688 57921080/30p24.712.4238187Canon 5DS
 
Canon 5DS R« » Full Frame 50.3 8688 57921080/30p24.612.4230886Canon 5DS R
 
Hasselblad X1D« » Medium Format 51.3 8272 62001080/25p26.214.84489102Hasselblad X1D
 
Leica SL« » Full Frame 24.0 6000 40004K/30p25.013.4182188Leica SL
 
Nikon D5600« » APS-C 24.0 6000 40001080/60p24.114.0130684Nikon D5600
 
Nikon D500« » APS-C 20.7 5568 37124K/30p24.014.0132483Nikon D500
 
Nikon D3400« » APS-C 24.0 6000 40001080/60p24.813.9119286Nikon D3400
 
Nikon D3300« » APS-C 24.0 6000 40001080/60p24.312.8138582Nikon D3300
 
Nikon D5300« » APS-C 24.0 6000 40001080/60p24.013.9133883Nikon D5300
 
Nikon D3200« » APS-C 24.1 6016 40001080/30p24.113.2113181Nikon D3200
 
Nikon D5200« » APS-C 24.0 6000 40001080/60i24.213.9128484Nikon D5200
 
Pentax 645D« » Medium Format 39.5 7264 5440-24.612.6126282Pentax 645D
 
Samsung NX30« » APS-C 20.0 5472 36481080/60p23.512.4101476Samsung NX30
 
Sony A6300« » APS-C 24.0 6000 40004K/30p24.413.7143785Sony A6300

Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the D5500 provides a higher frame rate than the 645Z. It can shoot video footage at 1080/60p, while the Pentax is limited to 1080/60i.

 

Feature comparison: Nikon D5500 vs Pentax 645Z

Apart from body and sensor, cameras can and do differ across a variety of features. The D5500 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 645Z offers a wider field of view (98%) than the one in the D5500 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the 645Z has a higher magnification (0.78x vs 0.57x), 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 D5500 and Pentax 645Z along with similar information for a selection of comparators.

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
Camera
Model
 
Nikon D5500»optical n 3.2 1037 swivel Y 1/4000s 5.0 Y n Nikon D5500
 
Pentax 645Z«optical Y 3.2 1037 tilting n 1/4000s 3.0 n n Pentax 645Z
 
Canon M5« »2360 n 3.2 1620 tilting Y 1/4000s 9.0 Y n Canon M5
 
Canon 5DS« »optical Y 3.2 1040 fixed n 1/8000s 5.0 n n Canon 5DS
 
Canon 5DS R« »optical Y 3.2 1040 fixed n 1/8000s 5.0 n n Canon 5DS R
 
Hasselblad X1D« »2360 n 3.0 920 fixed Y 1/2000s 2.3 n n Hasselblad X1D
 
Leica SL« »4400 Y 3.0 1040 fixed Y 1/8000s 11.0 n n Leica SL
 
Nikon D5600« »optical n 3.2 1037 swivel Y 1/4000s 5.0 Y n Nikon D5600
 
Nikon D500« »optical Y 3.2 2359 tilting Y 1/8000s 10.0 n n Nikon D500
 
Nikon D3400« »optical n 3.0 921 fixed n 1/4000s 5.0 Y n Nikon D3400
 
Nikon D3300« »optical n 3.0 921 fixed n 1/4000s 5.0 Y n Nikon D3300
 
Nikon D5300« »optical n 3.2 1037 swivel n 1/4000s 5.0 Y n Nikon D5300
 
Nikon D3200« »optical n 3.0 921 fixed n 1/4000s 4.0 Y n Nikon D3200
 
Nikon D5200« »optical n 3.0 921 swivel n 1/4000s 5.0 Y n Nikon D5200
 
Pentax 645D« »optical Y 3.0 921 fixed n 1/4000s 1.1 n n Pentax 645D
 
Samsung NX30« »2359 n 3.0 1036 swivel Y 1/8000s 9.0 Y n Samsung NX30
 
Sony A6300« »2359 n 3.0 922 tilting n 1/4000s 11.0 Y n Sony A6300

One difference between the cameras concerns the presence of an on-board flash. The D5500 has one, while the 645Z does not. While the built-in flash of the D5500 is not very powerful, it can at times be useful as a fill-in light.

The D5500 has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the 645Z does not have a selfie-screen.

The Nikon D5500 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.

Concerning the storage of imaging data, both the D5500 and the 645Z write their files to SDXC cards. The 645Z features dual card slots, which can be very useful in case a memory card fails. In contrast, the D5500 only has one slot. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

 

Connectivity comparison: Nikon D5500 vs Pentax 645Z

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 D5500 and Pentax 645Z and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Nikon D5500»YstereomonoY-mini2.0Y--Nikon D5500
 
Pentax 645Z«YstereomonoY-mini3.0---Pentax 645Z
 
Canon M5« »YstereomonoY-mini2.0YYYCanon M5
 
Canon 5DS« »YmonomonoY-mini3.0---Canon 5DS
 
Canon 5DS R« »YmonomonoY-mini3.0---Canon 5DS R
 
Hasselblad X1D« »YstereomonoYYmini3.0Y--Hasselblad X1D
 
Leica SL« »YstereomonoYYfull3.0Y--Leica SL
 
Nikon D5600« »YstereomonoY-mini2.0YYYNikon D5600
 
Nikon D500« »YstereomonoYYmini3.0YYYNikon D500
 
Nikon D3400« »Ymonomono--mini2.0Y-YNikon D3400
 
Nikon D3300« »YmonomonoY-mini2.0---Nikon D3300
 
Nikon D5300« »YstereomonoY-mini2.0Y--Nikon D5300
 
Nikon D3200« »YmonomonoY-mini2.0---Nikon D3200
 
Nikon D5200« »YstereomonoY-mini2.0---Nikon D5200
 
Pentax 645D« »Ystereo----2.0---Pentax 645D
 
Samsung NX30« »Ystereomono--micro2.0YY-Samsung NX30
 
Sony A6300« »YstereomonoY-micro2.0YY-Sony A6300

It is notable that the D5500 offers wifi support, while the 645Z 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 645Z (unlike the D5500) 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 D5500 has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the D5500 was succeeded by the Nikon D5600. 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.


Review summary: Nikon D5500 vs Pentax 645Z

So what conclusions can be drawn? Is the Nikon D5500 better than the Pentax 645Z or vice versa? 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 D5500:

  • Better video: Provides higher movie framerates (1080/60p versus 1080/60i).
  • More flexible LCD: Has swivel screen for odd-angle shots in portrait or landscape orientation.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (5 vs 3 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (124x97mm vs 156x117mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 1130g or 73 percent) and hence easier to carry around.
  • Longer lasting: Can take more shots (820 versus 650) on a single battery charge.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • More affordable: Was introduced into a lower priced category (89 percent cheaper at launch).
  • More modern: Is somewhat more recent (announced 8 months after the 645Z).

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Advantages of the Pentax 645Z:

  • More detail: Has more megapixels (51.1 vs 24MP), which boosts linear resolution by 43%.
  • Better image quality: Scores substantially higher (17 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (1.9 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (0.7 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (1.6 stops ISO advantage).
  • More complete view: Has a viewfinder with a larger field of view (98% vs 95%).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.57x).
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
  • 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 on the market for longer (launched in April 2014).

If the count of relative strengths (bullet points above) is taken as a measure, the 645Z comes out slightly ahead of the D5500 (13 : 12 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 sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

D5500 12:13 645Z

How about other alternatives? Do the specifications of the Nikon D5500 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the D5500 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: Nikon D5500 vs Pentax 645Z

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 (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.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Nikon D5500»+79/1004.5/55/54.5/5 Jan 2015 899- i Nikon D5500
 
Pentax 645Z«--4.5/55/55/5 Apr 2014 8,499 i i Pentax 645Z
 
Canon M5« »+82/1004/54.5/54/5 Sep 2016 979 i i Canon M5
 
Canon 5DS« »+83/1004.5/55/54.5/5 Feb 2015 3,699 i i Canon 5DS
 
Canon 5DS R« »+83/1005/55/54.5/5 Feb 2015 3,699 i i Canon 5DS R
 
Hasselblad X1D« »o81/100--4/5 Jun 2016 8,995 i i Hasselblad X1D
 
Leica SL« »-84/1004.5/54/54/5 Oct 2015 7,450 i i Leica SL
 
Nikon D5600« »-79/1004.5/54.5/54/5 Nov 2016 699 i i Nikon D5600
 
Nikon D500« »+ +91/1004.5/55/55/5 Jan 2016 1,999 i i Nikon D500
 
Nikon D3400« »+76/1004/54.5/54.5/5 Aug 2016 499- i Nikon D3400
 
Nikon D3300« »+77/1004.5/54.5/54.5/5 Jan 2014 499- i Nikon D3300
 
Nikon D5300« »+ +79/1004.5/54.5/54.5/5 Oct 2013 799- i Nikon D5300
 
Nikon D3200« »+ +73/1004.5/54.5/54.5/5 Apr 2012 599- i Nikon D3200
 
Nikon D5200« »+ +79/1004.5/54.5/54.5/5 Nov 2012 749- i Nikon D5200
 
Pentax 645D« »---4.5/5- Mar 2010 9,995- i Pentax 645D
 
Samsung NX30« »-77/1004.5/54/54.5/5 Jan 2014 999- i Samsung NX30
 
Sony A6300« »+85/1005/55/55/5 Feb 2016 999- i Sony A6300
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (-) not available.

Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.

Nikon D5500:
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 a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications: Nikon D5500 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 D5500 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 2015 April 2014
    Launch Price USD 899 USD 8499
    Sensor Specs Nikon D5500 Pentax 645Z
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor Medium Format Sensor
    Sensor Size 23.5 x 15.6 mm 43.8 x 32.8 mm
    Sensor Area 366.6 mm2 1436.64 mm2
    Sensor Diagonal 28.2 mm 54.7 mm
    Crop Factor 1.5x 0.79x
    Sensor Resolution 24 Megapixels 51.1 Megapixels
    Image Resolution 6000 x 4000 pixels 8256 x 6192 pixels
    Pixel Pitch 3.91 μm 5.30 μm
    Pixel Density 6.55 MP/cm2 3.56 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 1080/60p Video 1080/60i Video
    ISO Setting 100-25600 ISO 100-204800 ISO
    Image Processor EXPEED 4 PRIME III
    DXO Sensor Quality (score) 84 101
    DXO Color Depth (bits) 24.1 26.0
    DXO Dynamic Range (EV) 14.0 14.7
    DXO Low Light (ISO) 1438 4505
    Screen Specs Nikon D5500 Pentax 645Z
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 95% 98%
    Viewfinder Magnification 0.57x 0.78x
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.2 inch 3.2 inch
    LCD Resolution 1037k dots 1037k dots
    LCD Attachment Swivel screen Tilting screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Nikon D5500 Pentax 645Z
    Autofocus System Phase-detect AF Phase-detect AF
    Manual Focusing AidNo Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000/s 1/4000/s
    Continuous Shooting 5 shutter flaps/s 3 shutter flaps/s
    Shutter Life Expectancy100 000 actuations100 000 actuations
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Fill Flash Build-in Flash no On-Board Flash
    Storage Medium SDXC cards SDXC cards
    Second Storage Option Single card slot Dual card slots
    UHS card support UHS-I UHS-I
    Connectivity Specs Nikon D5500 Pentax 645Z
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.0
    HDMI Port mini HDMI mini HDMI
    Microphone Port External MIC port External MIC port
    Wifi Support Wifi built-in no Wifi
    Body Specs Nikon D5500 Pentax 645Z
    Environmental SealingNot weather sealedWeathersealed body
    Battery Type EN-EL14a power pack D-LI90 power pack
    Battery Life (CIPA)820 shots per charge650 shots per charge
    Body Dimensions 124 x 97 x 70 mm
    (4.9 x 3.8 x 2.8 in)
    156 x 117 x 123 mm
    (6.1 x 4.6 x 4.8 in)
    Camera Weight 420 g (14.8 oz) 1550 g (54.7 oz)

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