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Nikon 1 J5 vs Pentax 645D

The Nikon 1 J5 and the Pentax 645D are two digital cameras that were officially introduced, respectively, in April 2015 and March 2010. The J5 is a mirrorless interchangeable lens camera, while the 645D is a DSLR. The cameras are based on an one-inch (J5) and a medium format (645D) sensor. The Nikon has a resolution of 20.7 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 1 J5
versus
Pentax 645D
Nikon 1 J5   Pentax 645D
Mirrorless system camera Digital single lens reflex
Nikon 1 mount lenses Pentax 645 mount lenses
20.7 MP – 1" sensor 39.5 MP – Medium Format sensor
4K/15p Video no Video
ISO 160-12,800 ISO 100-1,600
No viewfinder, LCD framing Optical viewfinder
3.0" LCD – 1037k dots 3.0" LCD – 921k dots
Tilting touchscreen Fixed screen (not touch-sensitive)
60 shutter flaps per second 1.1 shutter flaps per second
not weather sealedWeathersealed body
250 shots per battery charge800 shots per battery charge
98 x 60 x 32 mm, 231 g 156 x 117 x 119 mm, 1480 g
Nikon 1 J5:
Check Ebay offers
Pentax 645D:
Check Ebay offers

Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon 1 J5 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.

Body comparison

The physical size and weight of the Nikon 1 J5 and the Pentax 645D are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth dimensions are rounded to the nearest millimeter.

The J5 can be obtained in three different colors (black, silver, white), while the 645D is only available in black.

Size Nikon 1 J5 vs Pentax 645D
Compare J5 versus 645D top
Comparison J5 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 considerably larger (210 percent) than the Nikon 1 J5. Moreover, the 645D is substantially heavier (541 percent) than the J5. It is noteworthy in this context that the 645D is splash and dust-proof, while the J5 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.

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
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon 1 J5 98 mm 60 mm 32 mm 231 g 250 n Apr 2015 399i
2.
 
Pentax 645D 156 mm 117 mm 119 mm 1480 g 800 Y Mar 2010 9,995i
3.
 
Canon G9 X Mark II 98 mm 58 mm 31 mm 206 g 235 n Jan 2017 529 i
4.
 
Canon G9 X 98 mm 58 mm 31 mm 209 g 220 n Oct 2015 529i
5.
 
Canon G7 X 103 mm 60 mm 40 mm 304 g 210 n Sep 2014 699i
6.
 
Canon 1D X 158 mm 168 mm 83 mm 1551 g 1120 Y Oct 2011 6,799i
7.
 
Canon 1D Mark IV 156 mm 157 mm 80 mm 1230 g 1500 Y Oct 2009 4,999i
8.
 
Leica S Typ 006 160 mm 120 mm 80 mm 1260 g .. Y Sep 2012 21,950i
9.
 
Nikon 1 V3 111 mm 65 mm 33 mm 381 g 310 n Mar 2014 799i
10.
 
Nikon 1 J4 100 mm 60 mm 29 mm 232 g 300 n Apr 2014 549i
11.
 
Nikon D3S 160 mm 157 mm 88 mm 1240 g 4200 Y Oct 2009 5,199i
12.
 
Panasonic FZ1000 137 mm 99 mm 131 mm 831 g 360 n Jun 2014 899i
13.
 
Pentax 645Z 156 mm 117 mm 123 mm 1550 g 650 Y Apr 2014 8,499 i
14.
 
Sony RX100 V 102 mm 58 mm 41 mm 299 g 220 n Oct 2016 999 i
15.
 
Sony RX100 IV 102 mm 58 mm 41 mm 298 g 280 n Jun 2015 999i
16.
 
Sony A5000 110 mm 63 mm 36 mm 269 g 420 n Jan 2014 449i
17.
 
Sony RX100 III 102 mm 58 mm 41 mm 290 g 320 n May 2014 799i
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

Any camera decision will obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The J5 was launched at a markedly lower price (by 96 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.

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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Nikon 1 J5 features an one-inch sensor and the Pentax 645D a medium format sensor. The sensor area in the 645D is 1152 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.7 and 0.79. The sensor in the J5 has a native 3:2 aspect ratio, while the one in the 645D offers a 4:3 aspect.

Nikon 1 J5 and Pentax 645D sensor measures

With 39.5MP, the 645D offers a higher resolution than the J5 (20.7MP), but the 645D nevertheless has larger individual pixels (pixel pitch of 6.06μm versus 2.37μm for the J5) due to its larger sensor. However, the J5 is a much more recent model (by 5 years) 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 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 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 1 J5 are 27.8 x 18.6 inches or 70.7 x 47.1 cm for good quality, 22.3 x 14.8 inches or 56.6 x 37.7 cm for very good quality, and 18.6 x 12.4 inches or 47.1 x 31.4 cm for excellent quality prints.

The J5 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Nikon 1 J5 has a native sensitivity range from ISO 160 to ISO 12800. The corresponding ISO settings for the Pentax 645D are ISO 100 to ISO 1600 (no boost).

J5 versus 645D 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 645D offers substantially better image quality than the J5 (overall score 17 points higher). The advantage is based on 3.5 bits higher color depth, 0.6 EV in additional dynamic range, and 1.4 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar 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
1.
 
Nikon 1 J5 1-inch 20.7 5568 37124K/15p21.112.047965
2.
 
Pentax 645D Medium Format 39.5 7264 5440none24.612.6126282
3.
 
Canon G9 X Mark II 1-inch 20.0 5472 36481080/60p21.912.552265
4.
 
Canon G9 X 1-inch 20.0 5472 36481080/60p21.512.349563
5.
 
Canon G7 X 1-inch 20.0 5472 36481080/60p23.012.755671
6.
 
Canon 1D X Full Frame 17.9 5184 34561080/30p23.811.8278682
7.
 
Canon 1D Mark IV APS-H 16.0 4896 32641080/30p22.812.0132074
8.
 
Leica S Typ 006 Medium Format 37.5 7500 5000none23.912.282476
9.
 
Nikon 1 V3 1-inch 18.2 5232 34881080/60p20.810.738452
10.
 
Nikon 1 J4 1-inch 18.2 5232 34881080/60p20.810.742653
11.
 
Nikon D3S Full Frame 12.1 4256 2832720/24p23.512.0325382
12.
 
Panasonic FZ1000 1-inch 20.0 5472 36484K/30p22.111.751764
13.
 
Pentax 645Z Medium Format 51.1 8256 61921080/60i26.014.74505101
14.
 
Sony RX100 V 1-inch 20.0 5472 36484K/30p22.812.458670
15.
 
Sony RX100 IV 1-inch 20.0 5472 36484K/30p22.812.659170
16.
 
Sony A5000 APS-C 19.8 5456 36321080/60i23.813.0108979
17.
 
Sony RX100 III 1-inch 20.0 5472 36481080/60p22.412.349567

Many modern cameras cannot only take still pictures, but also record videos. The J5 indeed provides movie recording capabilities, while the 645D does not. The highest resolution format that the J5 can use is 4K/15p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the 645D has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the J5 relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Nikon 1 J5, the Pentax 645D, and comparable cameras.

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Core Features
    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 1 J5none n3.0 / 1037 tilting Y 1/4000s 60.0/s Y n
2.
 
Pentax 645Doptical Y3.0 / 921 fixed n 1/4000s 1.1/s n n
3.
 
Canon G9 X Mark IInone n3.0 / 1040 fixed Y 1/2000s 8.2/s Y Y
4.
 
Canon G9 Xnone n3.0 / 1040 fixed Y 1/2000s 6.0/s Y Y
5.
 
Canon G7 Xnone n3.0 / 1040 tilting Y 1/2000s 6.5/s Y Y
6.
 
Canon 1D Xoptical Y3.2 / 1040 fixed n 1/8000s 14.0/s n n
7.
 
Canon 1D Mark IVoptical Y3.0 / 920 fixed n 1/8000s 10.0/s n n
8.
 
Leica S Typ 006optical Y3.0 / 922 fixed n 1/4000s 1.5/s n n
9.
 
Nikon 1 V3optional n3.0 / 1037 tilting Y 1/4000s 60.0/s Y n
10.
 
Nikon 1 J4none n3.0 / 1037 Fixed Y 1/4000s 60.0/s Y n
11.
 
Nikon D3Soptical Y3.0 / 921 fixed n 1/8000s 11.0/s n n
12.
 
Panasonic FZ10002359 n3.0 / 921 swivel n 1/4000s 12.0/s Y Y
13.
 
Pentax 645Zoptical Y3.2 / 1037 tilting n 1/4000s 3.0/s n n
14.
 
Sony RX100 V2359 n3.0 / 1229 tilting n 1/2000s 24.0/s Y Y
15.
 
Sony RX100 IV2359 n3.0 / 1228 tilting n 1/2000s 16.0/s Y Y
16.
 
Sony A5000none n3.0 / 461 tilting n 1/4000s 3.5/s Y n
17.
 
Sony RX100 III1440 n3.0 / 1229 tilting n 1/2000s 10.0/s Y Y
Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One difference between the cameras concerns the presence of an on-board flash. The J5 has one, while the 645D does not. While the built-in flash of the J5 is not very powerful, it can at times be useful as a fill-in light.

The J5 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 645D does not have a selfie-screen.

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 J5 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 1 J5 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.

Concerning the storage of imaging data, both the J5 and the 645D write their files to SDXC cards. The 645D features dual card slots, which can be very useful in case a memory card fails. In contrast, the J5 only has one slot. The J5 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the 645D cannot take advantage of Ultra High Speed SD cards.

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 1 J5 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
    Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Nikon 1 J5-stereo / mono--micro2.0YY-
2.
 
Pentax 645DYstereo / ----2.0---
3.
 
Canon G9 X Mark II-stereo / mono--micro2.0YYY
4.
 
Canon G9 X-stereo / mono--micro2.0YY-
5.
 
Canon G7 X-stereo / mono--micro2.0YY-
6.
 
Canon 1D XYmono / -Y-mini2.0---
7.
 
Canon 1D Mark IVYstereo / -Y-mini2.0---
8.
 
Leica S Typ 006Y- / ---mini2.0---
9.
 
Nikon 1 V3-stereo / monoY-mini2.0Y--
10.
 
Nikon 1 J4-stereo / mono--mini2.0Y--
11.
 
Nikon D3SYstereo / ---mini2.0---
12.
 
Panasonic FZ1000Ystereo / monoY-micro2.0YY-
13.
 
Pentax 645ZYstereo / monoY-mini3.0---
14.
 
Sony RX100 V-stereo / mono--micro2.0YY-
15.
 
Sony RX100 IV-stereo / mono--micro2.0YY-
16.
 
Sony A5000-stereo / mono--micro2.0YY-
17.
 
Sony RX100 III-stereo / mono--micro2.0YY-

It is notable that the J5 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 J5) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the J5 and the 645D have been discontinued, but can regularly be found used on eBay. The 645D was replaced by the Pentax 645Z, while the J5 does not have a direct successor. 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

So what is the bottom line? Is there a clear favorite between the Nikon 1 J5 and the Pentax 645D? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

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Reasons to prefer the Nikon 1 J5:

  • Broader imaging potential: Can record not only still images but also 4K/15p movies.
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • More detailed LCD: Has a higher resolution rear screen (1037k 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.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (60 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 (98x60mm vs 156x117mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 1249g or 84 percent) and hence easier to carry around.
  • More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
  • 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.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
  • More affordable: Was introduced into a lower priced category (96 percent cheaper at launch).
  • More modern: Reflects 5 years of technical progress since the 645D launch.

ilogo

Arguments in favor of the Pentax 645D:

  • More detail: Has more megapixels (39.5 vs 20.7MP), which boosts linear resolution by 36%.
  • Better image quality: Scores substantially higher (17 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (3.5 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (0.6 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (1.4 stops ISO advantage).
  • Easier framing: Has an optical viewfinder for image composition and settings control.
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • Longer lasting: Gets more shots (800 versus 250) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • 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 March 2010).

If the count of individual advantages (bullet points above) is taken as a guide, the J5 is the clear winner of the match-up (17 : 13 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision 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.

J5 17:13 645D

How about other alternatives? Do the specifications of the Nikon 1 J5 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 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 J5 and the 645D in practical situations. 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 where reviews by experts come in. 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
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon 1 J5........4.5/54.5/5 Apr 2015 399i
2.
 
Pentax 645D5/5.......... Mar 2010 9,995i
3.
 
Canon G9 X Mark II4/5..4/575/1004.5/54.5/5 Jan 2017 529 i
4.
 
Canon G9 X3.5/5+ +....4.5/54.5/5 Oct 2015 529i
5.
 
Canon G7 X4/5+ +..77/1004.5/54.5/5 Sep 2014 699i
6.
 
Canon 1D X5/5......4.5/54.5/5 Oct 2011 6,799i
7.
 
Canon 1D Mark IV5/5....89/100.... Oct 2009 4,999i
8.
 
Leica S Typ 006............ Sep 2012 21,950i
9.
 
Nikon 1 V33/5....76/1004.5/54/5 Mar 2014 799i
10.
 
Nikon 1 J43/5......4.5/54/5 Apr 2014 549i
11.
 
Nikon D3S5/5....89/1004.5/55/5 Oct 2009 5,199i
12.
 
Panasonic FZ10004/5+ +..82/1004.5/54.5/5 Jun 2014 899i
13.
 
Pentax 645Z5/5......4.5/55/5 Apr 2014 8,499 i
14.
 
Sony RX100 V4.5/5+ +..83/1004/54.5/5 Oct 2016 999 i
15.
 
Sony RX100 IV4.5/5+ +..85/1004/54.5/5 Jun 2015 999i
16.
 
Sony A50003/5+....4.5/54.5/5 Jan 2014 449i
17.
 
Sony RX100 III5/5+ +..82/1004.5/55/5 May 2014 799i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The ratings are only valid when referring to cameras in the same category and of the same age. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and 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 1 J5:
Check Ebay offers
Pentax 645D:
Check Ebay offers

Other camera comparisons

Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Nikon 1 J5 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 1 J5 Pentax 645D
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Nikon 1 mount lenses Pentax 645 mount lenses
    Launch Date April 2015 March 2010
    Launch Price USD 399 USD 9,995
    Sensor Specs Nikon 1 J5 Pentax 645D
    Sensor Technology BSI-CMOS CCD
    Sensor Format 1" Sensor Medium Format Sensor
    Sensor Size 13.2 x 8.8 mm 44.0 x 33.0 mm
    Sensor Area 116.16 mm2 1452 mm2
    Sensor Diagonal 15.9 mm 55 mm
    Crop Factor 2.7x 0.79x
    Sensor Resolution 20.7 Megapixels 39.5 Megapixels
    Image Resolution 5568 x 3712 pixels 7264 x 5440 pixels
    Pixel Pitch 2.37 μm 6.06 μm
    Pixel Density 17.79 MP/cm2 2.72 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 4K/15p Video no Video
    ISO Setting 160 - 12,800 ISO 100 - 1,600 ISO
    Image Processor EXPEED 5 PRIME II
    DXO Sensor Quality (score) 65 82
    DXO Color Depth (bits) 21.1 24.6
    DXO Dynamic Range (EV) 12.0 12.6
    DXO Low Light (ISO) 479 1262
    Screen Specs Nikon 1 J5 Pentax 645D
    Viewfinder Type no viewfinder Optical viewfinder
    Viewfinder Field of View 98%
    Viewfinder Magnification 0.78x
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1037k dots 921k dots
    LCD Attachment Tilting screen Fixed screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Nikon 1 J5 Pentax 645D
    Focus System On-Sensor Phase-detect Phase-detect AF
    Continuous Shooting 60 shutter flaps/s 1.1 shutter flaps/s
    Electronic Shutterup to 1/16000sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Fill Flash Built-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 no
    Connectivity Specs Nikon 1 J5 Pentax 645D
    External Flash no Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI no HDMI
    Wifi Support Wifi built-in no Wifi
    Near-Field Communication NFC built-in no NFC
    Body Specs Nikon 1 J5 Pentax 645D
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type EN-EL24 D-LI90
    Battery Life (CIPA)250 shots per charge800 shots per charge
    Body Dimensions 98 x 60 x 32 mm
    (3.9 x 2.4 x 1.3 in)
    156 x 117 x 119 mm
    (6.1 x 4.6 x 4.7 in)
    Camera Weight 231 g (8.1 oz) 1480 g (52.2 oz)
    Nikon 1 J5:
    Check Ebay offers
    Pentax 645D:
    Check Ebay offers

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