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Nikon Coolpix A vs Pentax 645D

The Nikon Coolpix A and the Pentax 645D are two digital cameras that were officially introduced, respectively, in March 2013 and March 2010. The Coolpix A is a fixed lens compact, while the 645D is a DSLR. The cameras are based on an APS-C (Coolpix A) and a medium format (645D) sensor. The Nikon has a resolution of 16.1 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 Coolpix A
versus
Pentax 645D
Nikon Coolpix A   Pentax 645D
Fixed lens compact camera Digital single lens reflex
28mm f/2.8 Pentax 645 mount lenses
16.1 MP – APS-C sensor 39.5 MP – Medium Format sensor
1080/30p Video no Video
ISO 100-6,400 (100 - 25,600) ISO 100-1,600
Viewfinder optional Optical viewfinder
3.0" LCD – 921k dots 3.0" LCD – 921k dots
Fixed screen (not touch-sensitive) Fixed screen (not touch-sensitive)
4 shutter flaps per second 1.1 shutter flaps per second
not weather sealedWeathersealed body
230 shots per battery charge800 shots per battery charge
111 x 64 x 40 mm, 299 g 156 x 117 x 119 mm, 1480 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon Coolpix A 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

An illustration of the physical size and weight of the Nikon Coolpix A and the Pentax 645D is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All size dimensions are rounded to the nearest millimeter.

The Coolpix A can be obtained in two different colors (black, silver), while the 645D is only available in black.

Size Nikon Coolpix A vs Pentax 645D
Compare Coolpix A versus 645D top
Comparison Coolpix A 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 (157 percent) than the Nikon Coolpix A. It is noteworthy in this context that the 645D is splash and dust-proof, while the Coolpix A does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the Coolpix A has a lens built in, whereas the 645D is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.

Concerning battery life, the Coolpix A gets 230 shots out of its EN-EL20 battery, while the 645D can take 800 images on a single charge of its D-LI90 power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon Coolpix A 111 mm 64 mm 40 mm 299 g 230 n Mar 2013 1,099ebay.com
2.
 
Pentax 645D 156 mm 117 mm 119 mm 1480 g 800 Y Mar 2010 9,995ebay.com
3.
 
Canon G7 X 103 mm 60 mm 40 mm 304 g 210 n Sep 2014 699ebay.com
4.
 
Canon 1D X 158 mm 168 mm 83 mm 1551 g 1120 Y Oct 2011 6,799ebay.com
5.
 
Canon 1D Mark IV 156 mm 157 mm 80 mm 1230 g 1500 Y Oct 2009 4,999ebay.com
6.
 
Fujifilm X100T 127 mm 74 mm 52 mm 440 g 330 n Sep 2014 1,299ebay.com
7.
 
Leica S Typ 006 160 mm 120 mm 80 mm 1260 g .. Y Sep 2012 21,950ebay.com
8.
 
Nikon P1000 146 mm 119 mm 181 mm 1415 g 250 n Jul 2018 999 amazon.com
9.
 
Nikon D3S 160 mm 157 mm 88 mm 1240 g 4200 Y Oct 2009 5,199ebay.com
10.
 
Pentax 645Z 156 mm 117 mm 123 mm 1550 g 650 Y Apr 2014 8,499 amazon.com
11.
 
Ricoh GR II 117 mm 63 mm 35 mm 251 g 320 n Jun 2015 699ebay.com
12.
 
Ricoh GR 117 mm 61 mm 35 mm 245 g 290 n Apr 2013 799ebay.com
13.
 
Sony RX100 V 102 mm 58 mm 41 mm 299 g 220 n Oct 2016 999ebay.com
14.
 
Sony RX100 IV 102 mm 58 mm 41 mm 298 g 280 n Jun 2015 999ebay.com
15.
 
Sony RX100 III 102 mm 58 mm 41 mm 290 g 320 n May 2014 799ebay.com
16.
 
Sony NEX-3N 110 mm 62 mm 35 mm 269 g 480 n Feb 2013 499ebay.com
17.
 
Sony NEX-6 120 mm 67 mm 43 mm 345 g 360 n Sep 2012 999ebay.com
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 Coolpix A was launched at a lower price than the 645D, despite having a lens built in. 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. 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 associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Nikon Coolpix A features an APS-C sensor and the Pentax 645D a medium format sensor. The sensor area in the 645D is 295 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 Coolpix A has a native 3:2 aspect ratio, while the one in the 645D offers a 4:3 aspect.

Nikon Coolpix A and Pentax 645D sensor measures

With 39.5MP, the 645D offers a higher resolution than the Coolpix A (16.1MP), but the 645D nevertheless has larger individual pixels (pixel pitch of 6.06μm versus 4.78μm for the Coolpix A) due to its larger sensor. However, the Coolpix A is a much more recent model (by 2 years and 11 months) than the 645D, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that 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 Coolpix A are 24.6 x 16.3 inches or 62.6 x 41.5 cm for good quality, 19.7 x 13.1 inches or 50.1 x 33.2 cm for very good quality, and 16.4 x 10.9 inches or 41.7 x 27.6 cm for excellent quality prints.

The Nikon Coolpix A has a native sensitivity range from ISO 100 to ISO 6400, which can be extended to ISO 100-25600. The corresponding ISO settings for the Pentax 645D are ISO 100 to ISO 1600 (no boost).

In terms of underlying technology, the Coolpix A is build around a CMOS sensor, while the 645D uses a CCD imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

Coolpix A 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"). The Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. 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 Coolpix A APS-C 16.1 4928 32641080/30p23.413.8116480
2.
 
Pentax 645D Medium Format 39.5 7264 5440none24.612.6126282
3.
 
Canon G7 X 1-inch 20.0 5472 36481080/60p23.012.755671
4.
 
Canon 1D X Full Frame 17.9 5184 34561080/30p23.811.8278682
5.
 
Canon 1D Mark IV APS-H 16.0 4896 32641080/30p22.812.0132074
6.
 
Fujifilm X100T APS-C 16.0 4896 32641080/60p23.612.8148378
7.
 
Leica S Typ 006 Medium Format 37.5 7500 5000none23.912.282476
8.
 
Nikon P1000 1/2.3 15.9 4608 34564K/30p20.612.1104451
9.
 
Nikon D3S Full Frame 12.1 4256 2832720/24p23.512.0325382
10.
 
Pentax 645Z Medium Format 51.1 8256 61921080/60i26.014.74505101
11.
 
Ricoh GR II APS-C 16.1 4928 32641080/30p23.613.7107880
12.
 
Ricoh GR APS-C 16.1 4928 32641080/30p23.613.597278
13.
 
Sony RX100 V 1-inch 20.0 5472 36484K/30p22.812.458670
14.
 
Sony RX100 IV 1-inch 20.0 5472 36484K/30p22.812.659170
15.
 
Sony RX100 III 1-inch 20.0 5472 36481080/60p22.412.349567
16.
 
Sony NEX-3N APS-C 16.0 4912 32641080/60i22.812.5106774
17.
 
Sony NEX-6 APS-C 16.0 4912 32641080/60i23.713.1101878
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras cannot only take still pictures, but also record videos. The Coolpix A indeed provides movie recording capabilities, while the 645D does not. The highest resolution format that the Coolpix A can use is 1080/30p.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the 645D has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the Coolpix A relies on live view and the rear LCD for framing. That said, the Coolpix A can be equipped with an optional viewfinder – the DF-CP1. The table below summarizes some of the other core capabilities of the Nikon Coolpix A and Pentax 645D in connection with corresponding information for a sample of similar 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 Coolpix Aoptional n3.0 / 921 fixed n 1/2000s 4.0/s Y n
2.
 
Pentax 645Doptical Y3.0 / 921 fixed n 1/4000s 1.1/s n n
3.
 
Canon G7 Xnone n3.0 / 1040 tilting Y 1/2000s 6.5/s Y Y
4.
 
Canon 1D Xoptical Y3.2 / 1040 fixed n 1/8000s 14.0/s n n
5.
 
Canon 1D Mark IVoptical Y3.0 / 920 fixed n 1/8000s 10.0/s n n
6.
 
Fujifilm X100T2360 n3.0 / 1040 fixed n 1/4000s 6.0/s Y n
7.
 
Leica S Typ 006optical Y3.0 / 922 fixed n 1/4000s 1.5/s n n
8.
 
Nikon P10002359 n3.2 / 921 swivel n 1/4000s 7.0/s Y Y
9.
 
Nikon D3Soptical Y3.0 / 921 fixed n 1/8000s 11.0/s n n
10.
 
Pentax 645Zoptical Y3.2 / 1037 tilting n 1/4000s 3.0/s n n
11.
 
Ricoh GR IIoptional n3.0 / 1230 fixed n 1/4000s 4.0/s Y n
12.
 
Ricoh GRoptional n3.0 / 1230 fixed n 1/4000s 4.0/s Y n
13.
 
Sony RX100 V2359 n3.0 / 1229 tilting n 1/2000s 24.0/s Y Y
14.
 
Sony RX100 IV2359 n3.0 / 1228 tilting n 1/2000s 16.0/s Y Y
15.
 
Sony RX100 III1440 n3.0 / 1229 tilting n 1/2000s 10.0/s Y Y
16.
 
Sony NEX-3Noptional n3.0 / 460 tilting n 1/4000s 4.0/s Y n
17.
 
Sony NEX-62359 n3.0 / 921 tilting n 1/4000s 10.0/s Y n
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 Coolpix A has one, while the 645D does not. While the built-in flash of the Coolpix A is not very powerful, it can at times be useful as a fill-in light.

The Nikon Coolpix A 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 Coolpix A 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 Coolpix A only has one slot.

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 Coolpix A 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 Coolpix AYstereo / mono---2.0---
2.
 
Pentax 645DYstereo / ----2.0---
3.
 
Canon G7 X-stereo / mono--micro2.0YY-
4.
 
Canon 1D XYmono / -Y-mini2.0---
5.
 
Canon 1D Mark IVYstereo / -Y-mini2.0---
6.
 
Fujifilm X100TYstereo / monoY-micro2.0Y--
7.
 
Leica S Typ 006Y- / ---mini2.0---
8.
 
Nikon P1000Ystereo / monoY-micro2.0Y-Y
9.
 
Nikon D3SYstereo / ---mini2.0---
10.
 
Pentax 645ZYstereo / monoY-mini3.0---
11.
 
Ricoh GR IIYstereo / mono--micro2.0YY-
12.
 
Ricoh GRYmono / mono--micro2.0---
13.
 
Sony RX100 V-stereo / mono--micro2.0YY-
14.
 
Sony RX100 IV-stereo / mono--micro2.0YY-
15.
 
Sony RX100 III-stereo / mono--micro2.0YY-
16.
 
Sony NEX-3N-stereo / mono--micro2.0---
17.
 
Sony NEX-6Ystereo / mono--mini2.0Y--

Studio photographers will appreciate that the Pentax 645D (unlike the Coolpix A) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

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

Review summary

So what is the bottom line? Which of the two cameras – the Nikon Coolpix A or the Pentax 645D – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

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Reasons to prefer the Nikon Coolpix A:

  • More dynamic range: Captures a larger spectrum of light and dark details (1.2 EV of extra DR).
  • Broader imaging potential: Can record not only still images but also 1080/30p movies.
  • Faster burst: Shoots at higher frequency (4 vs 1.1 flaps/sec) to capture the decisive moment.
  • Ready to shoot: Comes with a built-in lens, while the 645D requires a separate lens.
  • More compact: Is smaller (111x64mm vs 156x117mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the 645D).
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More modern: Reflects 2 years and 11 months of technical progress since the 645D launch.

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Advantages of the Pentax 645D:

  • More detail: Has more megapixels (39.5 vs 16.1MP), which boosts linear resolution by 54%.
  • Richer colors: Generates noticeably more natural colors (1.2 bits more color depth).
  • 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.
  • Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/2000s) to freeze action.
  • More flexible: Makes it possible to change lenses and thus to use specialty optics.
  • Longer lasting: Gets more shots (800 versus 230) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • 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 645D emerges as the winner of the match-up (11 : 9 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 wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

Coolpix A 09:11 645D

How about other alternatives? Do the specifications of the Nikon Coolpix A and the Pentax 645D place the cameras among the top in their class? Find out in the latest Best Prime Lens Compact 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 incomplete and does no justice, for example, to the way the Coolpix A or the 645D perform in practice. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews

This is why expert reviews are important. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

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Expert Camera Reviews
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon Coolpix A4/5+..75/1004/54/5 Mar 2013 1,099ebay.com
2.
 
Pentax 645D5/5.......... Mar 2010 9,995ebay.com
3.
 
Canon G7 X4/5+ +..77/1004.5/54.5/5 Sep 2014 699ebay.com
4.
 
Canon 1D X5/5......4.5/54.5/5 Oct 2011 6,799ebay.com
5.
 
Canon 1D Mark IV5/5....89/100.... Oct 2009 4,999ebay.com
6.
 
Fujifilm X100T5/5+..81/1004.5/55/5 Sep 2014 1,299ebay.com
7.
 
Leica S Typ 006............ Sep 2012 21,950ebay.com
8.
 
Nikon P1000..+3.5/573/1003.5/53.5/5 Jul 2018 999 amazon.com
9.
 
Nikon D3S5/5....89/1004.5/55/5 Oct 2009 5,199ebay.com
10.
 
Pentax 645Z5/5......4.5/55/5 Apr 2014 8,499 amazon.com
11.
 
Ricoh GR II........4.5/54.5/5 Jun 2015 699ebay.com
12.
 
Ricoh GR5/5....79/1004.5/54.5/5 Apr 2013 799ebay.com
13.
 
Sony RX100 V4.5/5+ +..83/1004/54.5/5 Oct 2016 999ebay.com
14.
 
Sony RX100 IV4.5/5+ +..85/1004/54.5/5 Jun 2015 999ebay.com
15.
 
Sony RX100 III5/5+ +..82/1004.5/55/5 May 2014 799ebay.com
16.
 
Sony NEX-3N3/5......4.5/54.5/5 Feb 2013 499ebay.com
17.
 
Sony NEX-65/5+ +..78/1004.5/54.5/5 Sep 2012 999ebay.com
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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Other camera comparisons

Did this review help to inform your camera decision process? 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. 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 Coolpix A 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 Coolpix A Pentax 645D
    Camera Type Fixed lens compact camera Digital single lens reflex
    Camera Lens 28mm f/2.8 Pentax 645 mount lenses
    Launch Date March 2013 March 2010
    Launch Price USD 1,099 USD 9,995
    Sensor Specs Nikon Coolpix A Pentax 645D
    Sensor Technology CMOS CCD
    Sensor Format APS-C Sensor Medium Format Sensor
    Sensor Size 23.6 x 15.6 mm 44.0 x 33.0 mm
    Sensor Area 368.16 mm2 1452 mm2
    Sensor Diagonal 28.3 mm 55 mm
    Crop Factor 1.5x 0.79x
    Sensor Resolution 16.1 Megapixels 39.5 Megapixels
    Image Resolution 4928 x 3264 pixels 7264 x 5440 pixels
    Pixel Pitch 4.78 μm 6.06 μm
    Pixel Density 4.37 MP/cm2 2.72 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 1080/30p Video no Video
    ISO Setting 100 - 6,400 ISO 100 - 1,600 ISO
    ISO Boost 100 - 25,600 ISO no Enhancement
    DXO Sensor Quality (score) 80 82
    DXO Color Depth (bits) 23.4 24.6
    DXO Dynamic Range (EV) 13.8 12.6
    DXO Low Light (ISO) 1164 1262
    Screen Specs Nikon Coolpix A Pentax 645D
    Viewfinder Type Viewfinder optional Optical viewfinder
    Viewfinder Field of View 98%
    Viewfinder Magnification 0.78x
    Top-Level Screen no Top Display Control Panel
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 921k dots 921k dots
    LCD Attachment Fixed screen Fixed screen
    Shooting Specs Nikon Coolpix A Pentax 645D
    Focus System Contrast-detect AF Phase-detect AF
    Continuous Shooting 4 shutter flaps/s 1.1 shutter flaps/s
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDXC cards SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support no no
    Connectivity Specs Nikon Coolpix A Pentax 645D
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port no HDMI no HDMI
    Wifi Support no Wifi no Wifi
    Body Specs Nikon Coolpix A Pentax 645D
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type EN-EL20 D-LI90
    Battery Life (CIPA)230 shots per charge800 shots per charge
    Body Dimensions 111 x 64 x 40 mm
    (4.4 x 2.5 x 1.6 in)
    156 x 117 x 119 mm
    (6.1 x 4.6 x 4.7 in)
    Camera Weight 299 g (10.5 oz) 1480 g (52.2 oz)
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