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Nikon D2Xs vs Pentax K-3

The Nikon D2Xs and the Pentax K-3 are two digital cameras that were announced, respectively, in June 2006 and October 2013. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The Nikon has a resolution of 12.2 megapixels, whereas the Pentax provides 24.1 MP.

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

Headline Specifications
Nikon D2Xs
versus
Pentax K-3
Nikon D2Xs   Pentax K-3
Digital single lens reflex Digital single lens reflex
Nikon F mount lenses Pentax K mount lenses
12.2 MP – APS-C sensor 24.1 MP – APS-C sensor
no Video 1080/60i Video
ISO 100-800 (800 - 3,200) ISO 100-51,200
Optical viewfinder Optical viewfinder
2.5" LCD – 230k dots 3.2" LCD – 1037k dots
Fixed screen (not touch-sensitive) Fixed screen (not touch-sensitive)
5 shutter flaps per second 8.3 shutter flaps per second
Lens stabilization onlyIn-body stabilization
Weathersealed bodyWeathersealed body
3800 shots per battery charge560 shots per battery charge
158 x 150 x 86 mm, 1252 g 131 x 100 x 77 mm, 800 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D2Xs and the Pentax K-3? 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 side-by-side display below illustrates the physical size and weight of the Nikon D2Xs and the Pentax K-3. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth dimensions are rounded to the nearest millimeter.

The K-3 can be obtained in two different colors (black, silver), while the D2Xs is only available in black.

Size Nikon D2Xs vs Pentax K-3
Compare D2Xs versus K-3 top
Comparison D2Xs or K-3 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax K-3 is considerably smaller (45 percent) than the Nikon D2Xs. Moreover, the K-3 is substantially lighter (36 percent) than the D2Xs. 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 D2Xs gets 3800 shots out of its Nikon EN-EL4a battery, while the K-3 can take 560 images on a single charge of its Pentax D-LI90 power pack. As can be seen in the images above, the D2Xs has a battery grip built in. This facilitates image-taking in portrait orientation and gives it additional battery power. In order to provide similar functionality for the K-3, Pentax provides the D-BG5 vertical grip as an optional accessory (see here on ebay).

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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 D2Xs 158 mm 150 mm 86 mm 1252 g 3800 Y Jun 2006 4,699ebay.com
2.
 
Pentax K-3 131 mm 100 mm 77 mm 800 g 560 Y Oct 2013 1,299ebay.com
3.
 
Canon 70D 139 mm 104 mm 79 mm 755 g 920 Y Jul 2013 1,199ebay.com
4.
 
Canon 1D Mark III 156 mm 157 mm 80 mm 1155 g 2200 Y Feb 2007 4,499ebay.com
5.
 
Nikon D3S 160 mm 157 mm 88 mm 1240 g 4200 Y Oct 2009 5,199ebay.com
6.
 
Nikon D300S 147 mm 115 mm 81 mm 938 g 950 Y Jul 2009 1,799ebay.com
7.
 
Nikon D3X 160 mm 157 mm 88 mm 1260 g 4400 Y Dec 2008 7,999ebay.com
8.
 
Nikon D3 160 mm 157 mm 88 mm 1300 g 4300 Y Aug 2007 4,999ebay.com
9.
 
Nikon D40X 124 mm 94 mm 64 mm 522 g 520 n Mar 2007 729ebay.com
10.
 
Nikon D300 147 mm 114 mm 74 mm 925 g 1000 Y Aug 2007 1,799ebay.com
11.
 
Nikon D80 132 mm 103 mm 77 mm 668 g 600 n Aug 2006 999ebay.com
12.
 
Nikon D200 147 mm 113 mm 74 mm 920 g 400 Y Nov 2005 1,699ebay.com
13.
 
Nikon D2X 158 mm 150 mm 86 mm 1252 g 3800 Y Sep 2004 4,999ebay.com
14.
 
Pentax KP 132 mm 101 mm 76 mm 703 g 390 Y Jan 2017 1,099ebay.com
15.
 
Pentax K-3 II 131 mm 100 mm 77 mm 800 g 720 Y Apr 2015 1,099ebay.com
16.
 
Pentax K-5 II 131 mm 97 mm 73 mm 760 g 740 Y Sep 2012 1,099ebay.com
17.
 
Pentax K-5 131 mm 97 mm 73 mm 760 g 740 Y Sep 2010 1,099ebay.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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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 K-3 was launched at a markedly lower price (by 72 percent) than the D2Xs, 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

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 associated with larger, more expensive camera bodies and lenses.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the K-3 is 1 percent smaller. They nevertheless have the same format factor of 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Nikon D2Xs and Pentax K-3 sensor measures

Despite having a slightly smaller sensor, the K-3 offers a higher resolution of 24.1 megapixels, compared with 12.2 MP of the D2Xs. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.90μm versus 5.52μm for the D2Xs). However, it should be noted that the K-3 is much more recent (by 7 years and 4 months) than the D2Xs, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. Coming back to sensor resolution, it should be mentioned that the K-3 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Pentax K-3 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the K-3 for good quality output (200 dots per inch) amounts to 30.1 x 20 inches or 76.4 x 50.8 cm, for very good quality (250 dpi) 24.1 x 16 inches or 61.1 x 40.6 cm, and for excellent quality (300 dpi) 20.1 x 13.3 inches or 50.9 x 33.9 cm. The corresponding values for the Nikon D2Xs are 21.4 x 14.2 inches or 54.5 x 36.2 cm for good quality, 17.2 x 11.4 inches or 43.6 x 28.9 cm for very good quality, and 14.3 x 9.5 inches or 36.3 x 24.1 cm for excellent quality prints.

The Nikon D2Xs has a native sensitivity range from ISO 100 to ISO 800, which can be extended to ISO 800-3200. The corresponding ISO settings for the Pentax K-3 are ISO 100 to ISO 51200 (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.

D2Xs versus K-3 MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). Of the two cameras under consideration, the K-3 offers substantially better image quality than the D2Xs (overall score 21 points higher). The advantage is based on 1.5 bits higher color depth, 2.5 EV in additional dynamic range, and 1.3 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 D2Xs APS-C 12.2 4288 2848none22.210.948959
2.
 
Pentax K-3 APS-C 24.1 6016 40001080/60i23.713.4121680
3.
 
Canon 70D APS-C 20.0 5472 36481080/30p22.511.692668
4.
 
Canon 1D Mark III APS-H 10.1 3888 2592none22.711.7107871
5.
 
Nikon D3S Full Frame 12.1 4256 2832720/24p23.512.0325382
6.
 
Nikon D300S APS-C 12.2 4288 2848720/24p22.512.278770
7.
 
Nikon D3X Full Frame 24.4 6048 4032none24.713.7199288
8.
 
Nikon D3 Full Frame 12.1 4256 2832none23.512.2229081
9.
 
Nikon D40X APS-C 10.0 3872 2592none22.411.451663
10.
 
Nikon D300 APS-C 12.2 4288 2848none22.112.067967
11.
 
Nikon D80 APS-C 10.0 3872 2592none22.111.252461
12.
 
Nikon D200 APS-C 10.0 3872 2592none22.311.558364
13.
 
Nikon D2X APS-C 12.2 4288 2848none22.110.947659
14.
 
Pentax KP APS-C 24.1 6016 40001080/60i23.913.2169981
15.
 
Pentax K-3 II APS-C 24.1 6016 40001080/60i23.613.6110680
16.
 
Pentax K-5 II APS-C 16.1 4928 32641080/25p23.814.1123582
17.
 
Pentax K-5 APS-C 16.1 4928 32641080/25p23.714.1116282
Note: DXO values in italics represent estimates based on sensor size and age.
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Many modern cameras cannot only take still pictures, but also record videos. The K-3 indeed provides for movie recording, while the D2Xs does not. The highest resolution format that the K-3 can use is 1080/60i.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The D2Xs and the K-3 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 viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the K-3 has a higher magnification than the one of the D2Xs (0.63x vs 0.57x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The following table reports on some other key feature differences and similarities of the Nikon D2Xs, the Pentax K-3, and comparable cameras.

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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 D2Xsoptical Y2.5 / 230 fixed n 1/8000s 5.0/s n n
2.
 
Pentax K-3optical Y3.2 / 1037 fixed n 1/8000s 8.3/s Y Y
3.
 
Canon 70Doptical Y3.0 / 1040 swivel Y 1/8000s 7.0/s Y n
4.
 
Canon 1D Mark IIIoptical Y3.0 / 230 fixed n 1/8000s 10.0/s n n
5.
 
Nikon D3Soptical Y3.0 / 921 fixed n 1/8000s 11.0/s n n
6.
 
Nikon D300Soptical Y3.0 / 920 fixed n 1/8000s 7.0/s Y n
7.
 
Nikon D3Xoptical Y3.0 / 922 fixed n 1/8000s 5.0/s n n
8.
 
Nikon D3optical Y3.0 / 922 fixed n 1/8000s 11.0/s n n
9.
 
Nikon D40Xoptical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
10.
 
Nikon D300optical Y3.0 / 922 fixed n 1/8000s 6.0/s Y n
11.
 
Nikon D80optical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
12.
 
Nikon D200optical Y2.5 / 230 fixed n 1/8000s 5.0/s Y n
13.
 
Nikon D2Xoptical Y2.5 / 235 fixed n 1/8000s 5.0/s n n
14.
 
Pentax KPoptical n3.0 / 921 tilting n 1/6000s 7.0/s Y Y
15.
 
Pentax K-3 IIoptical Y3.2 / 1037 fixed n 1/8000s 8.3/s n Y
16.
 
Pentax K-5 IIoptical Y3.0 / 921 fixed n 1/8000s 7.0/s Y Y
17.
 
Pentax K-5optical Y3.0 / 921 fixed n 1/8000s 7.0/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One feature that differentiates the K-3 and the D2Xs is in-body image stabilization (IBIS). The K-3 reduces the risk of handshake-induced blur with all attached lenses, while the D2Xs offers no blur reduction with lenses that themselves do not provide optical image stabilization.

The Pentax K-3 has 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 D2Xs writes its imaging data to Compact Flash cards, while the K-3 uses SDXC cards. The K-3 features dual card slots, which can be very useful in case a memory card fails. In contrast, the D2Xs only has one slot.

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Connectivity comparison

For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Nikon D2Xs and Pentax K-3 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 D2XsY- / ----2.0---
2.
 
Pentax K-3Ymono / monoYYmini3.0---
3.
 
Canon 70DYstereo / monoY-mini2.0Y--
4.
 
Canon 1D Mark IIIY- / ----2.0---
5.
 
Nikon D3SYstereo / ---mini2.0---
6.
 
Nikon D300SYstereo / monoY-mini2.0---
7.
 
Nikon D3XY- / ---mini2.0---
8.
 
Nikon D3Y- / ---mini2.0---
9.
 
Nikon D40XY- / ----2.0---
10.
 
Nikon D300Y- / ---mini2.0---
11.
 
Nikon D80Y- / ----2.0---
12.
 
Nikon D200Y- / ----2.0---
13.
 
Nikon D2XY- / ----2.0---
14.
 
Pentax KPYstereo / monoY--2.0Y--
15.
 
Pentax K-3 IIYmono / monoYYmini3.0---
16.
 
Pentax K-5 IIYstereo / monoY-mini2.0---
17.
 
Pentax K-5Ystereo / monoY-mini2.0---
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Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.

Both the D2Xs and the K-3 have been discontinued, but can regularly be found used on ebay. The D2Xs was replaced by the Nikon D3X, while the K-3 was followed by the Pentax K-3 II. Further information on the features and operation of the D2Xs and K-3 can be found, respectively, in the Nikon D2Xs Manual (free pdf) or the online Pentax K-3 Manual.

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Review summary

So what is the bottom line? Is the Nikon D2Xs better than the Pentax K-3 or vice versa? Below is a summary of the relative strengths of each of the two contestants.

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Arguments in favor of the Nikon D2Xs:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
  • Longer lasting: Can take more shots (3800 versus 560) on a single battery charge.
  • More heavily discounted: Has been available for much longer (launched in June 2006).

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Reasons to prefer the Pentax K-3:

  • More detail: Has more megapixels (24.1 vs 12.2MP), which boosts linear resolution by 40%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (21 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (1.5 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (2.5 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (1.3 stops ISO advantage).
  • Broader imaging potential: Can capture not only stills but also 1080/60i video.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.63x vs 0.57x).
  • Larger screen: Has a bigger rear LCD (3.2" vs 2.5") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1037k vs 230k dots).
  • Faster burst: Shoots at higher frequency (8.3 vs 5 flaps/sec) to capture the decisive moment.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More compact: Is smaller (131x100mm vs 158x150mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 452g or 36 percent) and is thus easier to take along.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More affordable: Was introduced into a lower priced category (72 percent cheaper at launch).
  • More modern: Reflects 7 years and 4 months of technical progress since the D2Xs launch.

If the number of relative strengths (bullet points above) is taken as a guide, the K-3 is the clear winner of the contest (20 : 4 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 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.

D2Xs 04:20 K-3

How about other alternatives? Do the specifications of the Nikon D2Xs and the Pentax K-3 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 remains incomplete and does no justice, for example, to the way the D2Xs or the K-3 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
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D2Xs............ Jun 2006 4,699ebay.com
2.
 
Pentax K-34/5....83/1005/55/5 Oct 2013 1,299ebay.com
3.
 
Canon 70D5/5+ +..83/1004.5/55/5 Jul 2013 1,199ebay.com
4.
 
Canon 1D Mark III............ Feb 2007 4,499ebay.com
5.
 
Nikon D3S5/5....89/1004.5/55/5 Oct 2009 5,199ebay.com
6.
 
Nikon D300S5/5+ +..82/1004/54.5/5 Jul 2009 1,799ebay.com
7.
 
Nikon D3X......86/1004/55/5 Dec 2008 7,999ebay.com
8.
 
Nikon D3......+ +5/54.5/5 Aug 2007 4,999ebay.com
9.
 
Nikon D40X..79/100..+ +4/54/5 Mar 2007 729ebay.com
10.
 
Nikon D300..+ +..+ +5/54.5/5 Aug 2007 1,799ebay.com
11.
 
Nikon D80..+..+ +o4.5/5 Aug 2006 999ebay.com
12.
 
Nikon D200..+ +..+ +o.. Nov 2005 1,699ebay.com
13.
 
Nikon D2X......+ +.... Sep 2004 4,999ebay.com
14.
 
Pentax KP4/5..3/582/1005/54.5/5 Jan 2017 1,099ebay.com
15.
 
Pentax K-3 II4.5/5......5/55/5 Apr 2015 1,099ebay.com
16.
 
Pentax K-5 II5/5....80/1005/54.5/5 Sep 2012 1,099ebay.com
17.
 
Pentax K-54/5....83/1005/54.5/5 Sep 2010 1,099ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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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. Hence, a score should always be seen in the context of the camera's market launch date and its price, 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 a corresponding selection in the search boxes below. 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 D2Xs vs Pentax K-3

    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 D2Xs Pentax K-3
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Nikon F mount lenses Pentax K mount lenses
    Launch Date June 2006 October 2013
    Launch Price USD 4,699 USD 1,299
    Sensor Specs Nikon D2Xs Pentax K-3
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor APS-C Sensor
    Sensor Size 23.7 x 15.7 mm 23.5 x 15.6 mm
    Sensor Area 372.09 mm2 366.6 mm2
    Sensor Diagonal 28.4 mm 28.2 mm
    Crop Factor 1.5x 1.5x
    Sensor Resolution 12.2 Megapixels 24.1 Megapixels
    Image Resolution 4288 x 2848 pixels 6016 x 4000 pixels
    Pixel Pitch 5.52 μm 3.90 μm
    Pixel Density 3.28 MP/cm2 6.56 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability no Video 1080/60i Video
    ISO Setting 100 - 800 ISO 100 - 51,200 ISO
    ISO Boost 800 - 3,200 ISO no Enhancement
    DXO Sensor Quality (score) 59 80
    DXO Color Depth (bits) 22.2 23.7
    DXO Dynamic Range (EV) 10.9 13.4
    DXO Low Light (ISO) 489 1216
    Screen Specs Nikon D2Xs Pentax K-3
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.57x 0.63x
    Top-Level Screen Control Panel Control Panel
    LCD Framing Live View
    Rear LCD Size 2.5inch 3.2inch
    LCD Resolution 230k dots 1037k dots
    LCD Attachment Fixed screen Fixed screen
    Shooting Specs Nikon D2Xs Pentax K-3
    Focus System Phase-detect AF Phase-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/8000s
    Continuous Shooting 5 shutter flaps/s 8.3 shutter flaps/s
    Shutter Life Expectancy150 000 actuations200 000 actuations
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash no On-Board Flash Built-in Flash
    Storage Medium CF cards SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    Connectivity Specs Nikon D2Xs Pentax K-3
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector USB 2.0 USB 3.0
    HDMI Port no HDMI mini HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi no Wifi
    Body Specs Nikon D2Xs Pentax K-3
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Nikon EN-EL4a Pentax D-LI90
    Battery Life (CIPA)3800 shots per charge560 shots per charge
    Body Dimensions 158 x 150 x 86 mm
    (6.2 x 5.9 x 3.4 in)
    131 x 100 x 77 mm
    (5.2 x 3.9 x 3.0 in)
    Camera Weight 1252 g (44.2 oz) 800 g (28.2 oz)
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    Check K-3 offers at
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