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Fujifilm X-T20 versus Pentax K-3 II

The Fujifilm X-T20 and the Pentax K-3 II are two digital cameras that were officially introduced, respectively, in January 2017 and April 2015. The X-T20 is a mirrorless interchangeable lens camera, while the K-3 II is a DSLR. Both cameras are equipped with an APS-C sensor. The Fujifilm has a resolution of 24 megapixel, whereas the Pentax provides 24.1 MP. Read on to find out how these two cameras compare with respect to their size, their sensors, their features, and their reception by expert reviewers.

Body comparison: Fujifilm X-T20 vs Pentax K-3 II

The side-by-side display below illustrates the physical size and weight of the Fujifilm X-T20 and the Pentax K-3 II. Three successive views from the front, the top, and the rear are shown. All width, height and depth dimensions are rounded to the nearest millimeter. You can also use the toggle button to switch to a percentage comparison if you prefer that the measures are being expressed in relative terms (in this case, the camera on the left side – the X-T20 – represents the basis for the calculations across all the size and weight measures).

Snapsort Fujifilm X-T20 vs Pentax K-3 II
Compare X-T20 versus K-3 II top
Compare X-T20 and K-3 II 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 II is notably larger (34 percent) than the Fujifilm X-T20. Moreover, the K-3 II is substantially heavier (109 percent) than the X-T20. It is noteworthy in this context that the K-3 II is splash and dust-proof, while the X-T20 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 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-T20 gets 350 shots out of its NP-W126S battery, while the K-3 II can take 720 images on a single charge of its D-LI90 power pack.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Fujifilm X-T20» 4.6 in 3.3 in 1.6 in 13.5 oz 350 n Jan 2017 899 i i
Pentax K-3 II« 5.2 in 3.9 in 3.0 in 28.2 oz 720 Y Apr 2015 1,099 i i
Canon M6« » 4.4 in 2.7 in 1.8 in 13.8 oz 295 n Feb 2017 779 i i
Canon M5« » 4.6 in 3.5 in 2.4 in 15.1 oz 295 n Sep 2016 979 i i
Fujifilm X-T100« » 4.8 in 3.3 in 1.9 in 15.8 oz 430 n May 2018 599 i i
Fujifilm X-A5« » 4.6 in 2.7 in 1.6 in 12.7 oz 450 n Jan 2018 399 i i
Fujifilm X-E3« » 4.8 in 2.9 in 1.7 in 11.9 oz 350 n Sep 2017 899 i i
Fujifilm X70« » 4.4 in 2.5 in 1.7 in 12.0 oz 330 n Jan 2016 799 i i
Fujifilm X-A3« » 4.6 in 2.6 in 1.6 in 12.0 oz 410 n Aug 2016 399 i i
Fujifilm X-E2S« » 5.1 in 3.0 in 1.5 in 12.3 oz 350 n Jan 2016 699- i
Fujifilm X-T10« » 4.6 in 3.3 in 1.6 in 13.4 oz 350 n May 2015 799- i
Fujifilm X-E2« » 5.1 in 3.0 in 1.5 in 12.3 oz 350 n Oct 2013 999- i
Panasonic GX8« » 5.2 in 3.1 in 2.5 in 17.2 oz 330 Y Jul 2015 1,199- i
Pentax KP« » 5.2 in 4.0 in 3.0 in 24.8 oz 390 Y Jan 2017 1,099 i i
Pentax K-70« » 5.0 in 3.7 in 2.9 in 24.3 oz 410 Y Jun 2016 649 i i
Pentax K-3« » 5.2 in 3.9 in 3.0 in 28.2 oz 560 Y Oct 2013 1,299- i
Pentax K-5« » 5.2 in 3.8 in 2.9 in 26.8 oz 740 Y Sep 2010 1,099- i

The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The X-T20 was launched at a somewhat lower price (by 18 percent) than the K-3 II, which makes it more attractive for photographers on a tight budget. 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: Fujifilm X-T20 vs Pentax K-3 II

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. 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. 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-T20 and Pentax K-3 II sensor measures

Despite having a slightly smaller sensor, the K-3 II offers a slightly higher resolution of 24.1 megapixel, compared with 24 MP of the X-T20. This megapixel 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 3.92μm for the X-T20). Moreover, it should be noted that the X-T20 is a somewhat more recent model (by 1 year and 8 months) than the K-3 II, 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 neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.

Unlike the X-T20, 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).

X-T20 versus K-3 II MP

For most cameras, data on sensor performance has been reported by DXO Mark. 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. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

Sensor Characteristics
  Camera Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Fujifilm X-T20» APS-C 24.0 6000 40004K/30p----
Pentax K-3 II« APS-C 24.1 6016 40001080/60i23.613.6110680
Canon M6« » APS-C 24.0 6000 40001080/60p----
Canon M5« » APS-C 24.0 6000 40001080/60p23.412.4126277
Fujifilm X-T100« » APS-C 24.0 6000 40004K/15p----
Fujifilm X-A5« » APS-C 24.0 6000 40004K/15p----
Fujifilm X-E3« » APS-C 24.0 6000 40004K/30p----
Fujifilm X70« » APS-C 16.0 4896 32641080/60p----
Fujifilm X-A3« » APS-C 24.0 6000 40001080/60p----
Fujifilm X-E2S« » APS-C 16.0 4896 32641080/60p----
Fujifilm X-T10« » APS-C 16.0 4896 32641080/60p----
Fujifilm X-E2« » APS-C 16.0 4896 32641080/60p----
Panasonic GX8« » Four Thirds 20.2 5184 38884K/30p23.512.680675
Pentax KP« » APS-C 24.1 6016 40001080/60i----
Pentax K-70« » APS-C 24.0 6000 40001080/60i----
Pentax K-3« » APS-C 24.1 6016 40001080/60i23.713.4121680
Pentax K-5« » APS-C 16.1 4928 32641080/25p23.714.1116282

Many modern cameras are not only capable of taking still images, but can also record movies. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the X-T20 provides a higher video resolution than the K-3 II. It can shoot video footage at 4K/30p, while the Pentax is limited to 1080/60i.

 

Feature comparison: Fujifilm X-T20 vs Pentax K-3 II

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the X-T20 has an electronic viewfinder (2360k dots), while the K-3 II has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The adjacent table lists some of the other core features of the Fujifilm X-T20 and Pentax K-3 II along with similar information for a selection of comparators. If needed, the dpreview camera hub, for example, contains further detail on the cameras' specs.

Core Features
  Camera Viewfinder
(Type or
'000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec))
Build-in
Flash
(yes/no)
Build-in
Image
Stab
Fujifilm X-T20»2360 n 3.0 1040 tilting Y 4000 8.0 Y n
Pentax K-3 II«optical Y 3.2 1037 fixed n 8000 8.3 n Y
Canon M6« »- n 3.0 1040 tilting Y 4000 9.0 Y n
Canon M5« »2360 n 3.2 1620 tilting Y 4000 9.0 Y n
Fujifilm X-T100« »2360 n 3.0 1040 full-flex Y 4000 6.0 Y n
Fujifilm X-A5« »- n 3.0 1040 tilting Y 4000 6.0 Y n
Fujifilm X-E3« »2360 n 3.0 1040 fixed Y 4000 8.0 n n
Fujifilm X70« »- n 3.0 1040 tilting Y 4000 8.0 Y n
Fujifilm X-A3« »- n 3.0 1040 tilting Y 4000 6.0 Y n
Fujifilm X-E2S« »2360 n 3.0 1040 fixed n 4000 7.0 Y n
Fujifilm X-T10« »2360 n 3.0 920 tilting n 4000 8.0 Y n
Fujifilm X-E2« »2360 n 3.0 1040 fixed n 4000 7.0 Y n
Panasonic GX8« »2360 n 3.0 1040 swivel Y 8000 10.0 n Y
Pentax KP« »optical n 3.0 921 tilting n 6000 7.0 Y Y
Pentax K-70« »optical n 3.0 921 swivel n 6000 6.0 Y Y
Pentax K-3« »optical Y 3.2 1037 fixed n 8000 8.3 Y Y
Pentax K-5« »optical Y 3.0 921 fixed n 8000 7.0 Y Y

Both the X-T20 and the K-3 II are current models that good online retailers will have in stock. You can check the latest prices, for example, at amazon. The K-3 II replaced the earlier Pentax K-3, while the X-T20 followed on from the Fujifilm X-T10.

Review summary: Fujifilm X-T20 vs Pentax K-3 II

So what conclusions can be drawn? Is there a clear favorite between the Fujifilm X-T20 and the Pentax K-3 II? The listing below highlights the relative strengths of the two models.

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Advantages of the Fujifilm X-T20:

  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60i).
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • More compact: Is smaller (118x83mm vs 131x100mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 417g or 52 percent) and hence easier to carry around.
  • More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced into a lower priced segment (18 percent cheaper at launch).
  • More modern: Is somewhat more recent (announced 1 year and 8 months after the K-3 II).

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Arguments in favor of the Pentax K-3 II:

  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Easier setting verification: Has 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.
  • Faster shutter: Has higher mechanical shutter speed (8000/sec vs 4000/sec) to freeze action.
  • Longer lasting: Gets more shots (720 versus 350) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Sharper images: Has stabilization technology build-in to reduce the impact of hand-shake.
  • More heavily discounted: Has been on the market for longer (launched in April 2015).

If the number of relative strengths (bullet points above) is taken as a guide, the X-T20 comes out slightly ahead of the K-3 II (10 : 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.

X-T20 10:09 K-3 II

In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the handling experience and imaging performance when actually working with the X-T20 or the K-3 II. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate. This is where reviews by experts come in. The adjacent table relays the overall verdicts of several of the most popular camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). The detailed reviews can be accessed by clicking on the site logo in the table header.

Review scores
  Camera cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Fujifilm X-T20»HiRec82/1005/5-4.5/5 Jan 2017 899 i i
Pentax K-3 II«--5/54.5/55/5 Apr 2015 1,099 i i
Canon M6« »-80/1004/54.5/54/5 Feb 2017 779 i i
Canon M5« »Rec82/1004/54.5/54/5 Sep 2016 979 i i
Fujifilm X-T100« »----- May 2018 599 i i
Fujifilm X-A5« »----3.5/5 Jan 2018 399 i i
Fujifilm X-E3« »Rec84/1004.5/54.5/54.5/5 Sep 2017 899 i i
Fujifilm X70« »-76/1004.5/54/54.5/5 Jan 2016 799 i i
Fujifilm X-A3« »-74/1004.5/5-4/5 Aug 2016 399 i i
Fujifilm X-E2S« »-77/1004.5/5-4.5/5 Jan 2016 699- i
Fujifilm X-T10« »HiRec80/1005/54/55/5 May 2015 799- i
Fujifilm X-E2« »-80/1004.5/5-5/5 Oct 2013 999- i
Panasonic GX8« »Rec82/1004.5/55/54.5/5 Jul 2015 1,199- i
Pentax KP« »-82/1005/5-4.5/5 Jan 2017 1,099 i i
Pentax K-70« »-79/1004.5/54/54.5/5 Jun 2016 649 i i
Pentax K-3« »-83/1005/54.5/55/5 Oct 2013 1,299- i
Pentax K-5« »-83/1005/54.5/54.5/5 Sep 2010 1,099- i

Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

 

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. An an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool. If the camera you are interested in is not available, please send me an email, and I will try to update the database with the necessary infos.

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