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Pentax K-3 II vs Sony A5000

The Pentax K-3 II and the Sony Alpha A5000 are two digital cameras that were officially introduced, respectively, in April 2015 and January 2014. The K-3 II is a DSLR, while the A5000 is a mirrorless interchangeable lens camera. Both cameras are equipped with an APS-C sensor. The Pentax has a resolution of 24.1 megapixels, whereas the Sony provides 19.8 MP.

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

Headline Specifications
Pentax K-3 II
versus
Sony A5000
Pentax K-3 II   Sony A5000
Digital single lens reflex Mirrorless system camera
Pentax K mount lenses Sony E mount lenses
24.1 MP – APS-C sensor 19.8 MP – APS-C sensor
1080/60i Video 1080/60i Video
ISO 100-51,200 ISO 100-16,000
Optical viewfinder No viewfinder, LCD framing
3.2" LCD – 1037k dots 3.0" LCD – 461k dots
Fixed screen (not touch-sensitive) Tilting screen (no touchscreen)
8.3 shutter flaps per second 3.5 shutter flaps per second
In-body stabilizationLens stabilization only
Weathersealed bodynot weather sealed
720 shots per battery charge420 shots per battery charge
131 x 100 x 77 mm, 800 g 110 x 63 x 36 mm, 269 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Pentax K-3 II and the Sony Alpha A5000? 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 Pentax K-3 II and the Sony A5000. 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 measures are rounded to the nearest millimeter.

The K-3 II can be obtained in two different colors (black, silver), while the A5000 is available in three color-versions (black, silver, white).

Size Pentax K-3 II vs Sony A5000
Compare K-3 II versus A5000 top
Comparison K-3 II or A5000 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A5000 is considerably smaller (47 percent) than the Pentax K-3 II. Moreover, the A5000 is substantially lighter (66 percent) than the K-3 II. It is worth mentioning in this context that the K-3 II is splash and dust resistant, while the A5000 does not feature any corresponding weather-sealing.

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

Concerning battery life, the K-3 II gets 720 shots out of its Pentax D-LI90 battery, while the A5000 can take 420 images on a single charge of its Sony NP-FW50 power pack. The power pack in the A5000 can be charged via the USB port, which can be very convenient when travelling.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Pentax K-3 II 131 mm 100 mm 77 mm 800 g 720 Y Apr 2015 1,099ebay.com
2.
 
Sony A5000 110 mm 63 mm 36 mm 269 g 420 n Jan 2014 449ebay.com
3.
 
Canon M10 108 mm 67 mm 35 mm 301 g 255 n Oct 2015 499ebay.com
4.
 
Nikon D3300 124 mm 98 mm 76 mm 430 g 700 n Jan 2014 499ebay.com
5.
 
Nikon D7200 136 mm 107 mm 76 mm 765 g 1110 Y Mar 2015 1,199ebay.com
6.
 
Pentax K-3 131 mm 100 mm 77 mm 800 g 560 Y Oct 2013 1,299ebay.com
7.
 
Pentax K-3 III 135 mm 104 mm 74 mm 820 g 800 Y Mar 2021 1,999 amazon.com
8.
 
Pentax K-5 131 mm 97 mm 73 mm 760 g 740 Y Sep 2010 1,099ebay.com
9.
 
Pentax K-5 II 131 mm 97 mm 73 mm 760 g 740 Y Sep 2012 1,099ebay.com
10.
 
Pentax K-70 126 mm 93 mm 74 mm 688 g 410 Y Jun 2016 649ebay.com
11.
 
Pentax KP 132 mm 101 mm 76 mm 703 g 390 Y Jan 2017 1,099ebay.com
12.
 
Pentax K-S1 121 mm 93 mm 70 mm 558 g 410 n Aug 2014 749ebay.com
13.
 
Pentax K-S2 123 mm 91 mm 73 mm 678 g 410 Y Feb 2015 749ebay.com
14.
 
Sony A77 II 143 mm 104 mm 81 mm 647 g 480 Y May 2014 1,199ebay.com
15.
 
Sony A5100 110 mm 63 mm 36 mm 283 g 400 n Aug 2014 549ebay.com
16.
 
Sony NEX-3N 110 mm 62 mm 35 mm 269 g 480 n Feb 2013 499ebay.com
17.
 
Sony RX100 IV 102 mm 58 mm 41 mm 298 g 280 n Jun 2015 999ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. 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 A5000 was launched at a markedly lower price (by 59 percent) than the K-3 II, 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. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels in a sensor of the same technological generation. 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 more expensive and lead to bigger and heavier cameras and lenses.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the A5000 is 3 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.

Pentax K-3 II and Sony A5000 sensor measures

With 24.1MP, the K-3 II offers a higher resolution than the A5000 (19.8MP), but the K-3 II has smaller individual pixels (pixel pitch of 3.90μm versus 4.25μm for the A5000). However, the K-3 II is a somewhat more recent model (by 1 year and 3 months) than the A5000, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the K-3 II 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 II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the K-3 II 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 Sony A5000 are 27.3 x 18.2 inches or 69.3 x 46.1 cm for good quality, 21.8 x 14.5 inches or 55.4 x 36.9 cm for very good quality, and 18.2 x 12.1 inches or 46.2 x 30.8 cm for excellent quality prints.

Unlike the A5000, the K-3 II has the capacity to capture high quality composite images by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

The Pentax K-3 II has a native sensitivity range from ISO 100 to ISO 51200. The corresponding ISO settings for the Sony Alpha A5000 are ISO 100 to ISO 16000 (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.

K-3 II versus A5000 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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"). The Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. 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
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Pentax K-3 II APS-C 24.1 6016 40001080/60i23.613.6110680
2.
 
Sony A5000 APS-C 19.8 5456 36321080/60i23.813.0108979
3.
 
Canon M10 APS-C 17.9 5184 34561080/30p22.211.475365
4.
 
Nikon D3300 APS-C 24.0 6000 40001080/60p24.312.8138582
5.
 
Nikon D7200 APS-C 24.0 6000 40001080/60p24.514.6133387
6.
 
Pentax K-3 APS-C 24.1 6016 40001080/60i23.713.4121680
7.
 
Pentax K-3 III APS-C 25.6 6192 41284K/30p24.213.7208385
8.
 
Pentax K-5 APS-C 16.1 4928 32641080/25p23.714.1116282
9.
 
Pentax K-5 II APS-C 16.1 4928 32641080/25p23.814.1123582
10.
 
Pentax K-70 APS-C 24.0 6000 40001080/60i23.813.1163980
11.
 
Pentax KP APS-C 24.1 6016 40001080/60i23.913.2169981
12.
 
Pentax K-S1 APS-C 20.0 5472 36481080/30p23.513.0106178
13.
 
Pentax K-S2 APS-C 20.0 5472 36481080/30p23.612.9151479
14.
 
Sony A77 II APS-C 24.0 6000 40001080/60p24.413.4101382
15.
 
Sony A5100 APS-C 24.0 6000 40001080/60p23.812.7134780
16.
 
Sony NEX-3N APS-C 16.0 4912 32641080/60i22.812.5106774
17.
 
Sony RX100 IV 1-inch 20.0 5472 36484K/30p22.812.659170
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, and both provide the same movie specifications (1080/60i).

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the K-3 II has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the A5000 relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Pentax K-3 II, the Sony A5000, and comparable cameras.

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Core Features
  empty 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.
 
Pentax K-3 IIoptical Y3.2 / 1037 fixed n 1/8000s 8.3/s n Y
2.
 
Sony A5000none n3.0 / 461 tilting n 1/4000s 3.5/s Y n
3.
 
Canon M10none n3.0 / 1040 tilting Y 1/4000s 4.6/s Y n
4.
 
Nikon D3300optical n3.0 / 921 fixed n 1/4000s 5.0/s Y n
5.
 
Nikon D7200optical Y3.2 / 1229 fixed n 1/8000s 6.0/s Y n
6.
 
Pentax K-3optical Y3.2 / 1037 fixed n 1/8000s 8.3/s Y Y
7.
 
Pentax K-3 IIIoptical Y3.2 / 1620 fixed Y 1/8000s 12.0/s n Y
8.
 
Pentax K-5optical Y3.0 / 921 fixed n 1/8000s 7.0/s Y Y
9.
 
Pentax K-5 IIoptical Y3.0 / 921 fixed n 1/8000s 7.0/s Y Y
10.
 
Pentax K-70optical n3.0 / 921 swivel n 1/6000s 6.0/s Y Y
11.
 
Pentax KPoptical n3.0 / 921 tilting n 1/6000s 7.0/s Y Y
12.
 
Pentax K-S1optical n3.0 / 921 fixed n 1/6000s 5.4/s Y Y
13.
 
Pentax K-S2optical n3.0 / 921 swivel n 1/6000s 5.4/s Y Y
14.
 
Sony A77 II2359 Y3.0 / 1229 full-flex n 1/8000s 12.0/s Y Y
15.
 
Sony A5100none n3.0 / 922 tilting Y 1/4000s 6.0/s Y n
16.
 
Sony NEX-3Noptional n3.0 / 460 tilting n 1/4000s 4.0/s Y n
17.
 
Sony RX100 IV2359 n3.0 / 1228 tilting n 1/2000s 16.0/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that is present on the K-3 II, but is missing on the A5000 is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.

The A5000 has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the K-3 II does not have a selfie-screen.

The Pentax K-3 II 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 K-3 II writes its imaging data to SDXC cards, while the A5000 uses SDXC or Memory Stick PRO Duo cards. The K-3 II features dual card slots, which can be very useful in case a memory card fails. In contrast, the A5000 only has one slot. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

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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 Pentax K-3 II and Sony Alpha A5000 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Pentax K-3 IIYmono / monoYYmini3.0---
2.
 
Sony A5000-stereo / mono--micro2.0YY-
3.
 
Canon M10-stereo / mono--mini2.0YY-
4.
 
Nikon D3300Ymono / monoY-mini2.0---
5.
 
Nikon D7200Ystereo / monoYYmini2.0YY-
6.
 
Pentax K-3Ymono / monoYYmini3.0---
7.
 
Pentax K-3 IIIYstereo / monoYYmicro3.2Y-Y
8.
 
Pentax K-5Ystereo / monoY-mini2.0---
9.
 
Pentax K-5 IIYstereo / monoY-mini2.0---
10.
 
Pentax K-70Ystereo / monoY-mini2.0Y--
11.
 
Pentax KPYstereo / monoY--2.0Y--
12.
 
Pentax K-S1Ystereo / mono--micro2.0---
13.
 
Pentax K-S2Ymono / monoY-micro2.0YY-
14.
 
Sony A77 IIYstereo / monoY-mini2.0YY-
15.
 
Sony A5100-stereo / mono--micro2.0YY-
16.
 
Sony NEX-3N-stereo / mono--micro2.0---
17.
 
Sony RX100 IV-stereo / mono--micro2.0YY-

It is notable that the K-3 II has a hotshoe, while the A5000 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.

Studio photographers will appreciate that the Pentax K-3 II (unlike the A5000) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Travel and landscape photographers will find it useful that the K-3 II has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

Both the K-3 II and the A5000 have been discontinued, but can regularly be found used on ebay. The A5000 was replaced by the Sony A5100, while the K-3 II was followed by the Pentax K-3 III. Further information on the features and operation of the K-3 II and A5000 can be found, respectively, in the Pentax K-3 II Manual (free pdf) or the online Sony A5000 Manual.

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Review summary

So what conclusions can be drawn? Is there a clear favorite between the Pentax K-3 II and the Sony A5000? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

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Arguments in favor of the Pentax K-3 II:

  • More detail: Offers more megapixels (24.1 vs 19.8MP) with a 10% higher linear resolution.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • More dynamic range: Captures a larger spectrum of light and dark details (0.6 EV of extra DR).
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • Easier framing: Has an optical viewfinder for image composition and settings control.
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1037k vs 461k dots).
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (8.3 vs 3.5 flaps/sec) to capture the decisive moment.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Longer lasting: Can take more shots (720 versus 420) on a single battery charge.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • Easier geotagging: Features an internal GPS sensor to log localization data.
  • Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More modern: Is somewhat more recent (announced 1 year and 3 months after the A5000).

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Advantages of the Sony Alpha A5000:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • More compact: Is smaller (110x63mm vs 131x100mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 531g or 66 percent) and is thus easier to take along.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • 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.
  • More affordable: Was introduced into a lower priced category (59 percent cheaper at launch).
  • More heavily discounted: Has been on the market for longer (launched in January 2014).

If the count of individual advantages (bullet points above) is taken as a guide, the K-3 II is the clear winner of the match-up (22 : 12 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.

K-3 II 22:12 A5000

How about other alternatives? Do the specifications of the Pentax K-3 II and the Sony A5000 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings 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 incomplete and does no justice, for example, to the way the K-3 II or the A5000 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 hands-on reviews by experts are important. 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
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Pentax K-3 II4.5/5......5/55/5 Apr 2015 1,099ebay.com
2.
 
Sony A50003/5+....4.5/54.5/5 Jan 2014 449ebay.com
3.
 
Canon M10..........4/5 Oct 2015 499ebay.com
4.
 
Nikon D33003/5+..77/1004.5/54.5/5 Jan 2014 499ebay.com
5.
 
Nikon D72004/5+ +..84/1004.5/54.5/5 Mar 2015 1,199ebay.com
6.
 
Pentax K-34/5....83/1005/55/5 Oct 2013 1,299ebay.com
7.
 
Pentax K-3 III4/5..3/5..4.5/5.. Mar 2021 1,999 amazon.com
8.
 
Pentax K-54/5....83/1005/54.5/5 Sep 2010 1,099ebay.com
9.
 
Pentax K-5 II5/5....80/1005/54.5/5 Sep 2012 1,099ebay.com
10.
 
Pentax K-704.5/5..4/579/1004.5/54.5/5 Jun 2016 649ebay.com
11.
 
Pentax KP4/5..3/582/1005/54.5/5 Jan 2017 1,099ebay.com
12.
 
Pentax K-S14/5......4.5/54/5 Aug 2014 749ebay.com
13.
 
Pentax K-S24.5/5......5/54.5/5 Feb 2015 749ebay.com
14.
 
Sony A77 II4/5....80/1004.5/55/5 May 2014 1,199ebay.com
15.
 
Sony A51004.5/5+....4.5/55/5 Aug 2014 549ebay.com
16.
 
Sony NEX-3N3/5......4.5/54.5/5 Feb 2013 499ebay.com
17.
 
Sony RX100 IV4.5/5+ +..85/1004/54.5/5 Jun 2015 999ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, 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 comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just use the search menu below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications: Pentax K-3 II vs Sony A5000

    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 Pentax K-3 II Sony A5000
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Pentax K mount lenses Sony E mount lenses
    Launch Date April 2015 January 2014
    Launch Price USD 1,099 USD 449
    Sensor Specs Pentax K-3 II Sony A5000
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor APS-C Sensor
    Sensor Size 23.5 x 15.6 mm 23.2 x 15.4 mm
    Sensor Area 366.6 mm2 357.28 mm2
    Sensor Diagonal 28.2 mm 27.8 mm
    Crop Factor 1.5x 1.5x
    Sensor Resolution 24.1 Megapixels 19.8 Megapixels
    Image Resolution 6016 x 4000 pixels 5456 x 3632 pixels
    Pixel Pitch 3.90 μm 4.25 μm
    Pixel Density 6.56 MP/cm2 5.55 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 1080/60i Video 1080/60i Video
    ISO Setting 100 - 51,200 ISO 100 - 16,000 ISO
    Image Processor PRIME III BIONZ X
    DXO Sensor Quality (score) 80 79
    DXO Color Depth (bits) 23.6 23.8
    DXO Dynamic Range (EV) 13.6 13.0
    DXO Low Light (ISO) 1106 1089
    Screen Specs Pentax K-3 II Sony A5000
    Viewfinder Type Optical viewfinder no viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.63x
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.2inch 3.0inch
    LCD Resolution 1037k dots 461k dots
    LCD Attachment Fixed screen Tilting screen
    Shooting Specs Pentax K-3 II Sony A5000
    Focus System Phase-detect AF Contrast-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/4000s
    Continuous Shooting 8.3 shutter flaps/s 3.5 shutter flaps/s
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationIn-body stabilizationLens stabilization only
    Fill Flash no On-Board Flash Built-in Flash
    Storage Medium SDXC cards MS or SDXC cards
    Single or Dual Card Slots Dual card slots Single card slot
    UHS card support UHS-I UHS-I
    Connectivity Specs Pentax K-3 II Sony A5000
    External Flash Hotshoe no Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 3.0 USB 2.0
    HDMI Port mini HDMI micro HDMI
    Microphone Port External MIC port no MIC socket
    Headphone Socket Headphone port no Headphone port
    Wifi Support no Wifi Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Geotagging GPS built-in no internal GPS
    Body Specs Pentax K-3 II Sony A5000
    Environmental SealingWeathersealed bodynot weather sealed
    Battery Type Pentax D-LI90 Sony NP-FW50
    Battery Life (CIPA)720 shots per charge420 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 131 x 100 x 77 mm
    (5.2 x 3.9 x 3.0 in)
    110 x 63 x 36 mm
    (4.3 x 2.5 x 1.4 in)
    Camera Weight 800 g (28.2 oz) 269 g (9.5 oz)
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    Check A5000 offers at
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