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Fujifilm X-A2 vs Pentax K-3

The Fujifilm X-A2 and the Pentax K-3 are two digital cameras that were announced, respectively, in January 2015 and October 2013. The X-A2 is a mirrorless interchangeable lens camera, while the K-3 is a DSLR. Both cameras are equipped with an APS-C sensor. The Fujifilm has a resolution of 16 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
Fujifilm X-A2
versus
Pentax K-3
Fujifilm X-A2   Pentax K-3
Mirrorless system camera Digital single lens reflex
Fujifilm X mount lenses Pentax K mount lenses
16 MP – APS-C sensor 24.1 MP – APS-C sensor
1080/30p Video 1080/60i Video
ISO 200-6,400 (100 - 25,600) ISO 100-51,200
No viewfinder, LCD framing Optical viewfinder
3.0" LCD – 920k dots 3.2" LCD – 1037k dots
Tilting screen (no touchscreen) Fixed screen (not touch-sensitive)
5.6 shutter flaps per second 8.3 shutter flaps per second
Lens stabilization onlyIn-body stabilization
not weather sealedWeathersealed body
410 shots per battery charge560 shots per battery charge
117 x 67 x 40 mm, 350 g 131 x 100 x 77 mm, 800 g
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Check X-A2 offers at
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Check K-3 offers at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm X-A2 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 Fujifilm X-A2 and the Pentax K-3. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth dimensions are rounded to the nearest millimeter.

The X-A2 can be obtained in three different colors (black, brown, white), while the K-3 is available in two color-versions (black, silver).

Size Fujifilm X-A2 vs Pentax K-3
Compare X-A2 versus K-3 top
Comparison X-A2 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 larger (67 percent) than the Fujifilm X-A2. Moreover, the K-3 is substantially heavier (129 percent) than the X-A2. It is noteworthy in this context that the K-3 is splash and dust-proof, while the X-A2 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 X-A2 gets 410 shots out of its Fujifilm NP-W126 battery, while the K-3 can take 560 images on a single charge of its Pentax D-LI90 power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons 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
Street
Price
1.
 
Fujifilm X-A2 117 mm 67 mm 40 mm 350 g 410 n Jan 2015 US$ 399ebay.com
2.
 
Pentax K-3 131 mm 100 mm 77 mm 800 g 560 Y Oct 2013 US$ 1 299ebay.com
3.
 
Fujifilm X-A1 117 mm 67 mm 39 mm 330 g 350 n Sep 2013 US$ 399ebay.com
4.
 
Fujifilm X-A3 117 mm 67 mm 40 mm 339 g 410 n Aug 2016 US$ 399ebay.com
5.
 
Fujifilm X-A5 117 mm 68 mm 40 mm 361 g 450 n Jan 2018 US$ 399ebay.com
6.
 
Fujifilm X-A10 117 mm 67 mm 40 mm 331 g 410 n Dec 2016 US$ 399ebay.com
7.
 
Fujifilm X-E1 129 mm 75 mm 38 mm 350 g 350 n Sep 2012 US$ 999ebay.com
8.
 
Fujifilm X-E2 129 mm 75 mm 37 mm 350 g 350 n Oct 2013 US$ 999ebay.com
9.
 
Fujifilm X-E2S 129 mm 75 mm 37 mm 350 g 350 n Jan 2016 US$ 699ebay.com
10.
 
Fujifilm X-M1 117 mm 67 mm 39 mm 330 g 350 n Jun 2013 US$ 699ebay.com
11.
 
Fujifilm X-T10 118 mm 83 mm 41 mm 381 g 350 n May 2015 US$ 799ebay.com
12.
 
Fujifilm X70 113 mm 64 mm 44 mm 340 g 330 n Jan 2016 US$ 799ebay.com
13.
 
Nikon D7100 136 mm 107 mm 76 mm 765 g 950 Y Feb 2013 US$ 1 199ebay.com
14.
 
Pentax K-3 II 131 mm 100 mm 77 mm 800 g 720 Y Apr 2015 US$ 1 099ebay.com
15.
 
Pentax K-5 II 131 mm 97 mm 73 mm 760 g 740 Y Sep 2012 US$ 1 099ebay.com
16.
 
Pentax KP 132 mm 101 mm 76 mm 703 g 390 Y Jan 2017 US$ 1 099ebay.com
17.
 
Sony A77 143 mm 104 mm 81 mm 732 g 470 Y Aug 2011 US$ 1 399ebay.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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The X-A2 was launched at a markedly lower price (by 69 percent) than the K-3, 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 sensor inside a digital camera is one of the key determinants 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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. 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.

Fujifilm X-A2 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 16 MP of the X-A2. 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 4.80μm for the X-A2). Moreover, it should be noted that the X-A2 is a somewhat more recent model (by 1 year and 3 months) than the K-3, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. 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 Fujifilm X-A2 are 24.5 x 16.3 inches or 62.2 x 41.5 cm for good quality, 19.6 x 13.1 inches or 49.7 x 33.2 cm for very good quality, and 16.3 x 10.9 inches or 41.5 x 27.6 cm for excellent quality prints.

The Fujifilm X-A2 has a native sensitivity range from ISO 200 to ISO 6400, which can be extended to ISO 100-25600. 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.

X-A2 versus K-3 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 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
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Fujifilm X-A2 APS-C 16.0 4896 32641080/30p23.612.8151579
2.
 
Pentax K-3 APS-C 24.1 6016 40001080/60i23.713.4121680
3.
 
Fujifilm X-A1 APS-C 16.0 4896 32641080/30p23.412.6139076
4.
 
Fujifilm X-A3 APS-C 24.0 6000 40001080/60p23.813.1166481
5.
 
Fujifilm X-A5 APS-C 24.0 6000 40004K/15p24.013.3180082
6.
 
Fujifilm X-A10 APS-C 16.0 4896 32641080/30p23.913.2169181
7.
 
Fujifilm X-E1 APS-C 16.0 4896 32641080/24p23.212.4129875
8.
 
Fujifilm X-E2 APS-C 16.0 4896 32641080/60p23.412.6140077
9.
 
Fujifilm X-E2S APS-C 16.0 4896 32641080/60p23.713.0160880
10.
 
Fujifilm X-M1 APS-C 16.0 4896 32641080/30p23.412.6137176
11.
 
Fujifilm X-T10 APS-C 16.0 4896 32641080/60p23.712.9154679
12.
 
Fujifilm X70 APS-C 16.0 4896 32641080/60p23.713.0160880
13.
 
Nikon D7100 APS-C 24.0 6000 40001080/60p24.213.7125683
14.
 
Pentax K-3 II APS-C 24.1 6016 40001080/60i23.613.6110680
15.
 
Pentax K-5 II APS-C 16.1 4928 32641080/25p23.814.1123582
16.
 
Pentax KP APS-C 24.1 6016 40001080/60i23.913.2169981
17.
 
Sony A77 APS-C 24.0 6000 40001080/60p24.013.280178
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 two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the K-3 provides a faster frame rate than the X-A2. It can shoot movie footage at 1080/60i, while the Fujifilm is limited to 1080/30p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the K-3 has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the X-A2 relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Fujifilm X-A2, the Pentax K-3, 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.
 
Fujifilm X-A2none n3.0 / 920 tilting n 1/4000s 5.6/s Y n
2.
 
Pentax K-3optical Y3.2 / 1037 fixed n 1/8000s 8.3/s Y Y
3.
 
Fujifilm X-A1none n3.0 / 920 tilting n 1/4000s 5.6/s Y n
4.
 
Fujifilm X-A3none n3.0 / 1040 tilting Y 1/4000s 6.0/s Y n
5.
 
Fujifilm X-A5none n3.0 / 1040 tilting Y 1/4000s 6.0/s Y n
6.
 
Fujifilm X-A10none n3.0 / 1040 tilting n 1/4000s 6.0/s Y n
7.
 
Fujifilm X-E12360 n2.8 / 460 fixed n 1/4000s 6.0/s Y n
8.
 
Fujifilm X-E22360 n3.0 / 1040 fixed n 1/4000s 7.0/s Y n
9.
 
Fujifilm X-E2S2360 n3.0 / 1040 fixed n 1/4000s 7.0/s Y n
10.
 
Fujifilm X-M1none n3.0 / 920 tilting n 1/4000s 5.6/s Y n
11.
 
Fujifilm X-T102360 n3.0 / 920 tilting n 1/4000s 8.0/s Y n
12.
 
Fujifilm X70optional n3.0 / 1040 tilting Y 1/4000s 8.0/s Y n
13.
 
Nikon D7100optical Y3.2 / 1229 fixed n 1/8000s 6.0/s Y n
14.
 
Pentax K-3 IIoptical Y3.2 / 1037 fixed n 1/8000s 8.3/s n Y
15.
 
Pentax K-5 IIoptical Y3.0 / 921 fixed n 1/8000s 7.0/s Y Y
16.
 
Pentax KPoptical n3.0 / 921 tilting n 1/6000s 7.0/s Y Y
17.
 
Sony A772359 Y3.0 / 921 full-flex n 1/8000s 12.0/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that differentiates the K-3 and the X-A2 is in-body image stabilization (IBIS). The K-3 reduces the risk of handshake-induced blur with all attached lenses, while the X-A2 offers no blur reduction with lenses that themselves do not provide optical image stabilization.

The X-A2 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-3 does not have a selfie-screen.

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.

Concerning the storage of imaging data, both the X-A2 and the K-3 write their files to SDXC cards. The K-3 features dual card slots, which can be very useful in case a memory card fails. In contrast, the X-A2 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 Fujifilm X-A2 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
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Fujifilm X-A2Ystereo / mono--mini2.0Y--
2.
 
Pentax K-3Ymono / monoYYmini3.0---
3.
 
Fujifilm X-A1Ystereo / mono--mini2.0Y--
4.
 
Fujifilm X-A3Ystereo / mono--micro2.0Y--
5.
 
Fujifilm X-A5Ystereo / monoY-micro2.0Y-Y
6.
 
Fujifilm X-A10-stereo / mono--micro2.0Y--
7.
 
Fujifilm X-E1Ystereo / monoY-mini2.0---
8.
 
Fujifilm X-E2Ystereo / monoY-micro2.0Y--
9.
 
Fujifilm X-E2SYstereo / monoY-micro2.0Y--
10.
 
Fujifilm X-M1Ystereo / mono--mini2.0Y--
11.
 
Fujifilm X-T10Ystereo / monoY-micro2.0Y--
12.
 
Fujifilm X70Ystereo / monoY-micro2.0Y--
13.
 
Nikon D7100Ystereo / monoYYmini2.0---
14.
 
Pentax K-3 IIYmono / monoYYmini3.0---
15.
 
Pentax K-5 IIYstereo / monoY-mini2.0---
16.
 
Pentax KPYstereo / monoY--2.0Y--
17.
 
Sony A77Ystereo / monoY-mini2.0---

It is notable that the X-A2 offers wifi support, while the K-3 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

Studio photographers will appreciate that the Pentax K-3 (unlike the X-A2) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the X-A2 and the K-3 have been discontinued, but can regularly be found used on ebay. The K-3 was replaced by the Pentax K-3 II, while the X-A2 was followed by the Fujifilm X-A3. Further information on the features and operation of the X-A2 and K-3 can be found, respectively, in the Fujifilm X-A2 Manual (free pdf) or the online Pentax K-3 Manual.

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Review summary

So what is the bottom line? Is there a clear favorite between the Fujifilm X-A2 and the Pentax K-3? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

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Reasons to prefer the Fujifilm X-A2:

  • 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 (117x67mm vs 131x100mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 450g or 56 percent) and hence easier to carry around.
  • More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • More affordable: Was introduced into a lower priced category (69 percent cheaper at launch).
  • More modern: Is somewhat more recent (announced 1 year and 3 months after the K-3).

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Arguments in favor of the Pentax K-3:

  • More detail: Has more megapixels (24.1 vs 16MP), which boosts linear resolution by 23%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better video: Provides higher movie framerates (1080/60i versus 1080/30p).
  • 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 a control panel on top to check 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 920k 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 5.6 flaps/sec) to capture the decisive moment.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Longer lasting: Gets more shots (560 versus 410) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • 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 heavily discounted: Has been on the market for longer (launched in October 2013).

If the count of relative strengths (bullet points above) is taken as a measure, the K-3 is the clear winner of the contest (19 : 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.

X-A2 09:19 K-3

How about other alternatives? Do the specifications of the Fujifilm X-A2 and the Pentax K-3 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the 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 X-A2 or the K-3 perform in practice. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews

This is why hands-on reviews by experts are important. The following table reports the overall ratings of the cameras as published by some of the major 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
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Fujifilm X-A24/5......4.5/54.5/5 Jan 2015 US$ 399ebay.com
2.
 
Pentax K-34/5....83/1005/55/5 Oct 2013 US$ 1 299ebay.com
3.
 
Fujifilm X-A1........4.5/54.5/5 Sep 2013 US$ 399ebay.com
4.
 
Fujifilm X-A3......74/1004.5/54/5 Aug 2016 US$ 399ebay.com
5.
 
Fujifilm X-A5..+4.1/5..4/53.5/5 Jan 2018 US$ 399ebay.com
6.
 
Fujifilm X-A10........4/54/5 Dec 2016 US$ 399ebay.com
7.
 
Fujifilm X-E14/5+ +..79/1004.5/54.5/5 Sep 2012 US$ 999ebay.com
8.
 
Fujifilm X-E24/5....80/1004.5/55/5 Oct 2013 US$ 999ebay.com
9.
 
Fujifilm X-E2S4.5/5....77/1004.5/54.5/5 Jan 2016 US$ 699ebay.com
10.
 
Fujifilm X-M13/5+..77/1004.5/54.5/5 Jun 2013 US$ 699ebay.com
11.
 
Fujifilm X-T104.5/5+ +..80/1005/55/5 May 2015 US$ 799ebay.com
12.
 
Fujifilm X704.5/5....76/1004.5/54.5/5 Jan 2016 US$ 799ebay.com
13.
 
Nikon D71005/5+ +..85/1004.5/54.5/5 Feb 2013 US$ 1 199ebay.com
14.
 
Pentax K-3 II4.5/5......5/55/5 Apr 2015 US$ 1 099ebay.com
15.
 
Pentax K-5 II5/5....80/1005/54.5/5 Sep 2012 US$ 1 099ebay.com
16.
 
Pentax KP4/5..3/582/1005/54.5/5 Jan 2017 US$ 1 099ebay.com
17.
 
Sony A775/591/100..81/100..5/5 Aug 2011 US$ 1 399ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. 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? In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. 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: Fujifilm X-A2 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 Fujifilm X-A2 Pentax K-3
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Fujifilm X mount lenses Pentax K mount lenses
    Launch Date January 2015 October 2013
    Launch Price USD 399 USD 1,299
    Sensor Specs Fujifilm X-A2 Pentax K-3
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor APS-C Sensor
    Sensor Size 23.6 x 15.6 mm 23.5 x 15.6 mm
    Sensor Area 368.16 mm2 366.6 mm2
    Sensor Diagonal 28.3 mm 28.2 mm
    Crop Factor 1.5x 1.5x
    Sensor Resolution 16 Megapixels 24.1 Megapixels
    Image Resolution 4896 x 3264 pixels 6016 x 4000 pixels
    Pixel Pitch 4.80 μm 3.90 μm
    Pixel Density 4.34 MP/cm2 6.56 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/30p Video 1080/60i Video
    ISO Setting 200 - 6,400 ISO 100 - 51,200 ISO
    ISO Boost 100 - 25,600 ISO no Enhancement
    Image Processor EXR Processor II PRIME III
    DXO Sensor Quality (score) .. 80
    DXO Color Depth (bits) .. 23.7
    DXO Dynamic Range (EV) .. 13.4
    DXO Low Light (ISO) .. 1216
    Screen Specs Fujifilm X-A2 Pentax K-3
    Viewfinder Type no viewfinder Optical viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.63x
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.2inch
    LCD Resolution 920k dots 1037k dots
    LCD Attachment Tilting screen Fixed screen
    Shooting Specs Fujifilm X-A2 Pentax K-3
    Focus System Contrast-detect AF Phase-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 5.6 shutter flaps/s 8.3 shutter flaps/s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium SDXC cards SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support UHS-I UHS-I
    Connectivity Specs Fujifilm X-A2 Pentax K-3
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.0
    HDMI Port mini HDMI mini HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support Wifi built-in no Wifi
    Body Specs Fujifilm X-A2 Pentax K-3
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Fujifilm NP-W126 Pentax D-LI90
    Battery Life (CIPA)410 shots per charge560 shots per charge
    Body Dimensions 117 x 67 x 40 mm
    (4.6 x 2.6 x 1.6 in)
    131 x 100 x 77 mm
    (5.2 x 3.9 x 3.0 in)
    Camera Weight 350 g (12.3 oz) 800 g (28.2 oz)
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    Check X-A2 offers at
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    Check K-3 offers at
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