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Nikon D5000 vs Pentax K-S1

The Nikon D5000 and the Pentax K-S1 are two digital cameras that were officially introduced, respectively, in April 2009 and August 2014. 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 20 MP.

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

Headline Specifications
Nikon D5000
versus
Pentax K-S1
Nikon D5000   Pentax K-S1
Digital single lens reflex Digital single lens reflex
Nikon F mount lenses Pentax K mount lenses
12.2 MP – APS-C sensor 20 MP – APS-C sensor
720/24p Video 1080/30p Video
ISO 200-3,200 (200 - 6,400) ISO 100-51,200
Optical viewfinder Optical viewfinder
2.7" LCD – 230k dots 3.0" LCD – 921k dots
Fully flexible screen (no touchscreen) Fixed screen (not touch-sensitive)
4 shutter flaps per second 5.4 shutter flaps per second
Lens stabilization onlyIn-body stabilization
510 shots per battery charge410 shots per battery charge
127 x 104 x 80 mm, 590 g 121 x 93 x 70 mm, 558 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D5000 and the Pentax K-S1? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

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Body comparison

The physical size and weight of the Nikon D5000 and the Pentax K-S1 are illustrated in the side-by-side display below. 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-S1 can be obtained in four different colors (black, grey, orange, white), while the D5000 is only available in black.

Size Nikon D5000 vs Pentax K-S1
Compare D5000 versus K-S1 top
Comparison D5000 or K-S1 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax K-S1 is notably smaller (15 percent) than the Nikon D5000. Moreover, the K-S1 is markedly lighter (5 percent) than the D5000. In this context, it is worth noting that neither the D5000 nor the K-S1 are weather-sealed.

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 D5000 gets 510 shots out of its Nikon EN-EL9a battery, while the K-S1 can take 410 images on a single charge of its Pentax D-LI109 power pack.

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
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D5000 127 mm 104 mm 80 mm 590 g 510 n Apr 2009 749ebay.com
2.
 
Pentax K-S1 121 mm 93 mm 70 mm 558 g 410 n Aug 2014 749ebay.com
3.
 
Canon XSi 129 mm 98 mm 62 mm 524 g 500 n Jan 2008 799ebay.com
4.
 
Nikon D5600 124 mm 97 mm 70 mm 465 g 970 n Nov 2016 699ebay.com
5.
 
Nikon D5500 124 mm 97 mm 70 mm 470 g 820 n Jan 2015 899ebay.com
6.
 
Nikon D5300 125 mm 98 mm 76 mm 480 g 600 n Oct 2013 799ebay.com
7.
 
Nikon D5200 129 mm 98 mm 78 mm 555 g 500 n Nov 2012 749ebay.com
8.
 
Nikon D5100 128 mm 97 mm 79 mm 560 g 660 n Apr 2011 749ebay.com
9.
 
Nikon D3100 124 mm 96 mm 75 mm 505 g 550 n Aug 2010 599ebay.com
10.
 
Nikon D3000 126 mm 97 mm 64 mm 536 g 500 n Jul 2009 599ebay.com
11.
 
Nikon D60 126 mm 94 mm 64 mm 522 g 500 n Jan 2008 629ebay.com
12.
 
Nikon D90 132 mm 103 mm 77 mm 703 g 850 n Aug 2008 1,299ebay.com
13.
 
Nikon D40X 124 mm 94 mm 64 mm 522 g 520 n Mar 2007 729ebay.com
14.
 
Nikon D80 132 mm 103 mm 77 mm 668 g 600 n Aug 2006 999ebay.com
15.
 
Pentax K-S2 123 mm 91 mm 73 mm 678 g 410 Y Feb 2015 749ebay.com
16.
 
Pentax K-500 130 mm 97 mm 71 mm 646 g 710 n Jun 2013 549ebay.com
17.
 
Sony A68 143 mm 104 mm 81 mm 610 g 540 n Nov 2015 699ebay.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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The two cameras under review were launched at the same price and fall into the same 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 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 tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units in a sensor of the same technological generation. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its 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-S1 is 2 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 D5000 and Pentax K-S1 sensor measures

Despite having a slightly smaller sensor, the K-S1 offers a higher resolution of 20 megapixels, compared with 12.2 MP of the D5000. 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 4.28μm versus 5.53μm for the D5000). However, it should be noted that the K-S1 is much more recent (by 5 years and 4 months) than the D5000, 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-S1 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Pentax K-S1 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the K-S1 for good quality output (200 dots per inch) amounts to 27.4 x 18.2 inches or 69.5 x 46.3 cm, for very good quality (250 dpi) 21.9 x 14.6 inches or 55.6 x 37.1 cm, and for excellent quality (300 dpi) 18.2 x 12.2 inches or 46.3 x 30.9 cm. The corresponding values for the Nikon D5000 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 D5000 has a native sensitivity range from ISO 200 to ISO 3200, which can be extended to ISO 200-6400. The corresponding ISO settings for the Pentax K-S1 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.

D5000 versus K-S1 MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. Of the two cameras under consideration, the K-S1 has a markedly higher DXO score than the D5000 (overall score 6 points higher), which will translate into better image quality. The advantage is based on 0.8 bits higher color depth, 0.5 EV in additional dynamic range, and 0.3 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.

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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 D5000 APS-C 12.2 4288 2848720/24p22.712.586872
2.
 
Pentax K-S1 APS-C 20.0 5472 36481080/30p23.513.0106178
3.
 
Canon XSi APS-C 12.2 4272 2848none21.910.869261
4.
 
Nikon D5600 APS-C 24.0 6000 40001080/60p24.114.0130684
5.
 
Nikon D5500 APS-C 24.0 6000 40001080/60p24.114.0143884
6.
 
Nikon D5300 APS-C 24.0 6000 40001080/60p24.013.9133883
7.
 
Nikon D5200 APS-C 24.0 6000 40001080/60i24.213.9128484
8.
 
Nikon D5100 APS-C 16.1 4928 32641080/30p23.513.6118380
9.
 
Nikon D3100 APS-C 14.2 4608 30721080/24p22.511.391967
10.
 
Nikon D3000 APS-C 10.0 3872 2592none22.311.156362
11.
 
Nikon D60 APS-C 10.0 3872 2592none22.511.456265
12.
 
Nikon D90 APS-C 12.2 4288 2848720/24p22.712.597773
13.
 
Nikon D40X APS-C 10.0 3872 2592none22.411.451663
14.
 
Nikon D80 APS-C 10.0 3872 2592none22.111.252461
15.
 
Pentax K-S2 APS-C 20.0 5472 36481080/30p23.612.9151479
16.
 
Pentax K-500 APS-C 16.1 4928 32641080/30p23.713.1108779
17.
 
Sony A68 APS-C 24.0 6000 40001080/60i24.113.570179
Note: DXO values in italics represent estimates based on sensor size and age.
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Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the K-S1 provides a better video resolution than the D5000. It can shoot movie footage at 1080/30p, while the Nikon is limited to 720/24p.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. The D5000 and the K-S1 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 K-S1 offers a wider field of view (100%) than the one in the D5000 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the K-S1 has a higher magnification (0.63x vs 0.51x), 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 D5000 and Pentax K-S1 along with similar information for a selection of comparators.

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Core Features
# image Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Nikon D5000optical n2.7 / 230 full-flex n 1/4000s 4.0/s Y n
2.
 
Pentax K-S1optical n3.0 / 921 fixed n 1/6000s 5.4/s Y Y
3.
 
Canon XSioptical n3.0 / 230 fixed n 1/4000s 3.5/s Y n
4.
 
Nikon D5600optical n3.2 / 1037 swivel Y 1/4000s 5.0/s Y n
5.
 
Nikon D5500optical n3.2 / 1037 swivel Y 1/4000s 5.0/s Y n
6.
 
Nikon D5300optical n3.2 / 1037 swivel n 1/4000s 5.0/s Y n
7.
 
Nikon D5200optical n3.0 / 921 swivel n 1/4000s 5.0/s Y n
8.
 
Nikon D5100optical n3.0 / 921 swivel n 1/4000s 4.0/s Y n
9.
 
Nikon D3100optical n3.0 / 230 fixed n 1/4000s 3.0/s Y n
10.
 
Nikon D3000optical n3.0 / 230 fixed n 1/4000s 3.0/s Y n
11.
 
Nikon D60optical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
12.
 
Nikon D90optical Y3.0 / 920 fixed n 1/4000s 4.5/s Y n
13.
 
Nikon D40Xoptical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
14.
 
Nikon D80optical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
15.
 
Pentax K-S2optical n3.0 / 921 swivel n 1/6000s 5.4/s Y Y
16.
 
Pentax K-500optical n3.0 / 921 fixed n 1/6000s 6.0/s Y Y
17.
 
Sony A681440 Y2.7 / 460 tilting n 1/4000s 8.0/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-S1 and the D5000 is in-body image stabilization (IBIS). The K-S1 reduces the risk of handshake-induced blur with all attached lenses, while the D5000 offers no blur reduction with lenses that themselves do not provide optical image stabilization.

The D5000 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 K-S1 does not have a selfie-screen.

The Nikon D5000 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 D5000 writes its imaging data to SDHC cards, while the K-S1 uses SDXC cards. The K-S1 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the D5000 cannot take advantage of Ultra High Speed SD cards.

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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 D5000 and Pentax K-S1 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 D5000Ymono / mono--mini2.0---
2.
 
Pentax K-S1Ystereo / mono--micro2.0---
3.
 
Canon XSiY- / ---mini2.0---
4.
 
Nikon D5600Ystereo / monoY-mini2.0YYY
5.
 
Nikon D5500Ystereo / monoY-mini2.0Y--
6.
 
Nikon D5300Ystereo / monoY-mini2.0Y--
7.
 
Nikon D5200Ystereo / monoY-mini2.0---
8.
 
Nikon D5100Ymono / monoY-mini2.0---
9.
 
Nikon D3100Ymono / mono--mini2.0---
10.
 
Nikon D3000Y- / ----2.0---
11.
 
Nikon D60Y- / ----2.0---
12.
 
Nikon D90Ymono / mono--mini2.0---
13.
 
Nikon D40XY- / ----2.0---
14.
 
Nikon D80Y- / ----2.0---
15.
 
Pentax K-S2Ymono / monoY-micro2.0YY-
16.
 
Pentax K-500Ymono / mono---2.0---
17.
 
Sony A68Ystereo / monoY-micro2.0---
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Both the D5000 and the K-S1 have been discontinued, but can regularly be found used on ebay. The D5000 was replaced by the Nikon D5100, while the K-S1 was followed by the Pentax K-S2. Further information on the features and operation of the D5000 and K-S1 can be found, respectively, in the Nikon D5000 Manual (free pdf) or the online Pentax K-S1 Manual.

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Review summary

So how do things add up? Which of the two cameras – the Nikon D5000 or the Pentax K-S1 – 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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Arguments in favor of the Nikon D5000:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Longer lasting: Can take more shots (510 versus 410) on a single battery charge.
  • More heavily discounted: Has been available for much longer (launched in April 2009).

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Advantages of the Pentax K-S1:

  • More detail: Has more megapixels (20 vs 12.2MP), which boosts linear resolution by 28%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores markedly higher (6 points) in the DXO overall evaluation.
  • Better video: Provides higher definition movie capture (1080/30p vs 720/24p).
  • More complete view: Has a viewfinder with a larger field of view (100% vs 95%).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.63x vs 0.51x).
  • Larger screen: Has a bigger rear LCD (3.0" vs 2.7") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (921k vs 230k dots).
  • Faster shutter: Has higher mechanical shutter speed (1/6000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (5.4 vs 4 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (121x93mm vs 127x104mm) and will fit more readily into a bag.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
  • More modern: Reflects 5 years and 4 months of technical progress since the D5000 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the K-S1 is the clear winner of the contest (14 : 6 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 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.

D5000 06:14 K-S1

How about other alternatives? Do the specifications of the Nikon D5000 and the Pentax K-S1 place the cameras among the top in their class? Find out in the latest Best DSLR Camera listing whether the two cameras rank among the cream of the crop.

In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the D5000 or the K-S1. 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 D5000..+ +..75/1004/54.5/5 Apr 2009 749ebay.com
2.
 
Pentax K-S14/5......4.5/54/5 Aug 2014 749ebay.com
3.
 
Canon XSi..+ +..+ +4/54.5/5 Jan 2008 799ebay.com
4.
 
Nikon D56004/5..4/579/1004.5/54/5 Nov 2016 699ebay.com
5.
 
Nikon D55005/5+..79/1004.5/54.5/5 Jan 2015 899ebay.com
6.
 
Nikon D53004/5+ +..79/1004.5/54.5/5 Oct 2013 799ebay.com
7.
 
Nikon D52004/5+ +..79/1004.5/54.5/5 Nov 2012 749ebay.com
8.
 
Nikon D51005/5+ +..76/1004.5/54.5/5 Apr 2011 749ebay.com
9.
 
Nikon D31005/5+ +..72/1004.5/54.5/5 Aug 2010 599ebay.com
10.
 
Nikon D3000..+..72/1004/54.5/5 Jul 2009 599ebay.com
11.
 
Nikon D60..80/100..+ +4/54.5/5 Jan 2008 629ebay.com
12.
 
Nikon D90..+ +..+ +4/54.5/5 Aug 2008 1,299ebay.com
13.
 
Nikon D40X..79/100..+ +4/54/5 Mar 2007 729ebay.com
14.
 
Nikon D80..+..+ +o4.5/5 Aug 2006 999ebay.com
15.
 
Pentax K-S24.5/5......5/54.5/5 Feb 2015 749ebay.com
16.
 
Pentax K-500........4.5/54.5/5 Jun 2013 549ebay.com
17.
 
Sony A683/5......4/54/5 Nov 2015 699ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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The review scores listed above should be treated with care, 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.

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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 use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Nikon D5000 vs Pentax K-S1

    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 D5000 Pentax K-S1
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Nikon F mount lenses Pentax K mount lenses
    Launch Date April 2009 August 2014
    Launch Price USD 749 USD 749
    Sensor Specs Nikon D5000 Pentax K-S1
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor APS-C Sensor
    Sensor Size 23.6 x 15.8 mm 23.5 x 15.6 mm
    Sensor Area 372.88 mm2 366.6 mm2
    Sensor Diagonal 28.4 mm 28.2 mm
    Crop Factor 1.5x 1.5x
    Sensor Resolution 12.2 Megapixels 20 Megapixels
    Image Resolution 4288 x 2848 pixels 5472 x 3648 pixels
    Pixel Pitch 5.53 μm 4.28 μm
    Pixel Density 3.28 MP/cm2 5.45 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 720/24p Video 1080/30p Video
    ISO Setting 200 - 3,200 ISO 100 - 51,200 ISO
    ISO Boost 200 - 6,400 ISO no Enhancement
    Image Processor EXPEED PRIME MII
    DXO Sensor Quality (score) 72 78
    DXO Color Depth (bits) 22.7 23.5
    DXO Dynamic Range (EV) 12.5 13.0
    DXO Low Light (ISO) 868 1061
    Screen Specs Nikon D5000 Pentax K-S1
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 95% 100%
    Viewfinder Magnification 0.51x 0.63x
    LCD Framing Live View Live View
    Rear LCD Size 2.7inch 3.0inch
    LCD Resolution 230k dots 921k dots
    LCD Attachment Fully flexible screen Fixed screen
    Shooting Specs Nikon D5000 Pentax K-S1
    Focus System Phase-detect AF Phase-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/6000s
    Continuous Shooting 4 shutter flaps/s 5.4 shutter flaps/s
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium SDHC cards SDXC cards
    Single or Dual Card Slots Single card slot Single card slot
    UHS card support no UHS-I
    Connectivity Specs Nikon D5000 Pentax K-S1
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI micro HDMI
    Wifi Support no Wifi no Wifi
    Body Specs Nikon D5000 Pentax K-S1
    Battery Type Nikon EN-EL9a Pentax D-LI109
    Battery Life (CIPA)510 shots per charge410 shots per charge
    Body Dimensions 127 x 104 x 80 mm
    (5.0 x 4.1 x 3.1 in)
    121 x 93 x 70 mm
    (4.8 x 3.7 x 2.8 in)
    Camera Weight 590 g (20.8 oz) 558 g (19.7 oz)
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