A potelyt.com – Photography & Imaging Resources
ad

When you use links on apotelyt.com to buy products,
the site may earn a commission.

PW

Fujifilm X-T20 vs Pentax K-3 III

The Fujifilm X-T20 and the Pentax K-3 III are two digital cameras that were revealed to the public, respectively, in January 2017 and March 2021. The X-T20 is a mirrorless interchangeable lens camera, while the K-3 III is a DSLR. Both cameras are equipped with an APS-C sensor. The Fujifilm has a resolution of 24 megapixels, whereas the Pentax provides 25.6 MP.

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

Headline Specifications
Fujifilm X-T20
versus
Pentax K-3 III
Fujifilm X-T20   Pentax K-3 III
Mirrorless system camera Digital single lens reflex
Fujifilm X mount lenses Pentax K mount lenses
24 MP – APS-C sensor 25.6 MP – APS-C sensor
4K/30p Video 4K/30p Video
ISO 200-12,800 (100 - 51,200) ISO 100-160,000
Electronic viewfinder (2360k dots) Optical viewfinder
3.0" LCD – 1040k dots 3.2" LCD – 1620k dots
Tilting touchscreen Fixed touchscreen
8 shutter flaps per second 12 shutter flaps per second
Lens stabilization onlyIn-body stabilization
not weather sealedWeathersealed body
350 shots per battery charge800 shots per battery charge
118 x 83 x 41 mm, 383 g 135 x 104 x 74 mm, 820 g
logo
Check X-T20 offers at
ebay.com
logo
Check K-3 III price at
amazon.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm X-T20 and the Pentax K-3 III? 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.

ad

Body comparison

An illustration of the physical size and weight of the Fujifilm X-T20 and the Pentax K-3 III is provided 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 measures are rounded to the nearest millimeter.

Both cameras are available in two different colors (black, silver).

Size Fujifilm X-T20 vs Pentax K-3 III
Compare X-T20 versus K-3 III top
Comparison X-T20 or K-3 III 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 III is considerably larger (43 percent) than the Fujifilm X-T20. Moreover, the K-3 III is substantially heavier (114 percent) than the X-T20. It is noteworthy in this context that the K-3 III 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 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-T20 gets 350 shots out of its Fujifilm NP-W126S battery, while the K-3 III can take 800 images on a single charge of its Pentax D-LI90 power pack. The power pack in the X-T20 can be charged via the USB port, so that it is not always necessary to take the battery charger along 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.

scroll hint
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.
 
Fujifilm X-T20 118 mm 83 mm 41 mm 383 g 350 n Jan 2017 899ebay.com
2.
 
Pentax K-3 III 135 mm 104 mm 74 mm 820 g 800 Y Mar 2021 1,999 amazon.com
3.
 
Fujifilm X-A3 117 mm 67 mm 40 mm 339 g 410 n Aug 2016 399ebay.com
4.
 
Fujifilm X-A5 117 mm 68 mm 40 mm 361 g 450 n Jan 2018 399ebay.com
5.
 
Fujifilm X-E2 129 mm 75 mm 37 mm 350 g 350 n Oct 2013 999ebay.com
6.
 
Fujifilm X-E3 121 mm 74 mm 43 mm 337 g 350 n Sep 2017 899ebay.com
7.
 
Fujifilm X-E4 121 mm 73 mm 33 mm 364 g 380 n Jan 2021 849 amazon.com
8.
 
Fujifilm X-H1 140 mm 97 mm 86 mm 673 g 310 Y Feb 2018 1,899ebay.com
9.
 
Fujifilm X-T10 118 mm 83 mm 41 mm 381 g 350 n May 2015 799ebay.com
10.
 
Fujifilm X-T30 118 mm 83 mm 47 mm 383 g 380 n Feb 2019 899ebay.com
11.
 
Fujifilm X-T30 II 118 mm 83 mm 47 mm 383 g 380 n Sep 2021 899 amazon.com
12.
 
Fujifilm X-T100 121 mm 83 mm 47 mm 448 g 430 n May 2018 599ebay.com
13.
 
Fujifilm X70 113 mm 64 mm 44 mm 340 g 330 n Jan 2016 799ebay.com
14.
 
Pentax K-3 131 mm 100 mm 77 mm 800 g 560 Y Oct 2013 1,299ebay.com
15.
 
Pentax K-3 II 131 mm 100 mm 77 mm 800 g 720 Y Apr 2015 1,099ebay.com
16.
 
Pentax K-70 126 mm 93 mm 74 mm 688 g 410 Y Jun 2016 649ebay.com
17.
 
Pentax KP 132 mm 101 mm 76 mm 703 g 390 Y Jan 2017 1,099ebay.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 X-T20 was launched at a markedly lower price (by 55 percent) than the K-3 III, 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 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 tend to be associated with larger, more expensive camera bodies and lenses.

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

Fujifilm X-T20 and Pentax K-3 III sensor measures

Despite having a slightly smaller sensor, the K-3 III offers a slightly higher resolution of 25.6 megapixels, compared with 24 MP of the X-T20. 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 3.76μm versus 3.92μm for the X-T20). However, it should be noted that the K-3 III is much more recent (by 4 years and 2 months) than the X-T20, 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 neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.

The X-T20 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the X-T20, the K-3 III has the capacity to capture high quality composite images (YESMP) 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 Fujifilm X-T20 has a native sensitivity range from ISO 200 to ISO 12800, which can be extended to ISO 100-51200. The corresponding ISO settings for the Pentax K-3 III are ISO 100 to ISO 160000 (no boost).

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. The X-T20 uses Fujifilm's X-Trans layout of photosites, while the K-3 III employs the more common Bayer array.

X-T20 versus K-3 III MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

scroll hint
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-T20 APS-C 24.0 6000 40004K/30p23.913.2170481
2.
 
Pentax K-3 III APS-C 25.6 6192 41284K/30p24.213.7208385
3.
 
Fujifilm X-A3 APS-C 24.0 6000 40001080/60p23.813.1166481
4.
 
Fujifilm X-A5 APS-C 24.0 6000 40004K/15p24.013.3180082
5.
 
Fujifilm X-E2 APS-C 16.0 4896 32641080/60p23.412.6140077
6.
 
Fujifilm X-E3 APS-C 24.0 6000 40004K/30p23.913.3176482
7.
 
Fujifilm X-E4 APS-C 26.0 6240 41604K/30p24.213.7208585
8.
 
Fujifilm X-H1 APS-C 24.0 6000 40004K/30p24.013.3180682
9.
 
Fujifilm X-T10 APS-C 16.0 4896 32641080/60p23.712.9154679
10.
 
Fujifilm X-T30 APS-C 26.0 6240 41604K/30p24.113.5189583
11.
 
Fujifilm X-T30 II APS-C 26.0 6240 41604K/30p24.213.8214485
12.
 
Fujifilm X-T100 APS-C 24.0 6000 40004K/15p24.013.4182983
13.
 
Fujifilm X70 APS-C 16.0 4896 32641080/60p23.713.0160880
14.
 
Pentax K-3 APS-C 24.1 6016 40001080/60i23.713.4121680
15.
 
Pentax K-3 II APS-C 24.1 6016 40001080/60i23.613.6110680
16.
 
Pentax K-70 APS-C 24.0 6000 40001080/60i23.813.1163980
17.
 
Pentax KP APS-C 24.1 6016 40001080/60i23.913.2169981
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. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, and both provide the same movie specifications (4K/30p).

ad

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the X-T20 has an electronic viewfinder (2360k dots), while the K-3 III 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 viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the K-3 III has a higher magnification than the one of the X-T20 (0.70x vs 0.62x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Fujifilm X-T20 and Pentax K-3 III in connection with corresponding information for a sample of similar cameras.

scroll hint
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-T202360 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y n
2.
 
Pentax K-3 IIIoptical Y3.2 / 1620 fixed Y 1/8000s 12.0/s n Y
3.
 
Fujifilm X-A3none n3.0 / 1040 tilting Y 1/4000s 6.0/s Y n
4.
 
Fujifilm X-A5none n3.0 / 1040 tilting Y 1/4000s 6.0/s Y n
5.
 
Fujifilm X-E22360 n3.0 / 1040 fixed n 1/4000s 7.0/s Y n
6.
 
Fujifilm X-E32360 n3.0 / 1040 fixed Y 1/4000s 8.0/s n n
7.
 
Fujifilm X-E42360 n3.0 / 1620 tilting Y 1/4000s 8.0/s n n
8.
 
Fujifilm X-H13690 Y3.0 / 1040 full-flex Y 1/8000s 14.0/s n Y
9.
 
Fujifilm X-T102360 n3.0 / 920 tilting n 1/4000s 8.0/s Y n
10.
 
Fujifilm X-T302360 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y n
11.
 
Fujifilm X-T30 II2360 n3.0 / 1620 tilting Y 1/4000s 8.0/s Y n
12.
 
Fujifilm X-T1002360 n3.0 / 1040 swivel Y 1/4000s 6.0/s Y n
13.
 
Fujifilm X70optional n3.0 / 1040 tilting Y 1/4000s 8.0/s Y n
14.
 
Pentax K-3optical Y3.2 / 1037 fixed n 1/8000s 8.3/s Y Y
15.
 
Pentax K-3 IIoptical Y3.2 / 1037 fixed n 1/8000s 8.3/s n Y
16.
 
Pentax K-70optical n3.0 / 921 swivel n 1/6000s 6.0/s Y Y
17.
 
Pentax KPoptical n3.0 / 921 tilting n 1/6000s 7.0/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One difference between the cameras concerns the presence of an on-board flash. The X-T20 has one, while the K-3 III does not. While the built-in flash of the X-T20 is not very powerful, it can at times be useful as a fill-in light.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the X-T20 is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Fujifilm X-T20 and the Pentax K-3 III both have 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-T20 and the K-3 III write their files to SDXC cards. The K-3 III features dual card slots, which can be very useful in case a memory card fails. In contrast, the X-T20 only has one slot. The K-3 III supports UHS-II cards (on its first slot), while the X-T20 can use UHS-I cards.

ad

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-T20 and Pentax K-3 III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

scroll hint
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-T20Ystereo / monoY-micro2.0Y--
2.
 
Pentax K-3 IIIYstereo / monoYYmicro3.2Y-Y
3.
 
Fujifilm X-A3Ystereo / mono--micro2.0Y--
4.
 
Fujifilm X-A5Ystereo / monoY-micro2.0Y-Y
5.
 
Fujifilm X-E2Ystereo / monoY-micro2.0Y--
6.
 
Fujifilm X-E3Ystereo / monoY-micro2.0Y-Y
7.
 
Fujifilm X-E4Ystereo / monoY-micro3.2Y-Y
8.
 
Fujifilm X-H1Ystereo / monoY-micro3.0Y--
9.
 
Fujifilm X-T10Ystereo / monoY-micro2.0Y--
10.
 
Fujifilm X-T30Ystereo / monoY-micro3.1Y-Y
11.
 
Fujifilm X-T30 IIYstereo / monoY-micro3.2Y-Y
12.
 
Fujifilm X-T100Ystereo / monoY-micro2.0Y-Y
13.
 
Fujifilm X70Ystereo / monoY-micro2.0Y--
14.
 
Pentax K-3Ymono / monoYYmini3.0---
15.
 
Pentax K-3 IIYmono / monoYYmini3.0---
16.
 
Pentax K-70Ystereo / monoY-mini2.0Y--
17.
 
Pentax KPYstereo / monoY--2.0Y--

It is notable that the K-3 III has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The X-T20 lacks such a headphone port.

Studio photographers will appreciate that the Pentax K-3 III (unlike the X-T20) 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 III has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

The K-3 III is a recent model that features in the current product line-up of Pentax. In contrast, the X-T20 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the X-T20 was succeeded by the Fujifilm X-T100. Further information on the features and operation of the X-T20 and K-3 III can be found, respectively, in the Fujifilm X-T20 Manual (free pdf) or the online Pentax K-3 III Manual.

ad

Review summary

So what is the bottom line? Which of the two cameras – the Fujifilm X-T20 or the Pentax K-3 III – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

ilogo

Advantages of the Fujifilm X-T20:

  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • 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.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • More compact: Is smaller (118x83mm vs 135x104mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 437g or 53 percent) and hence easier to carry around.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • 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 category (55 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in January 2017).

ilogo

Reasons to prefer the Pentax K-3 III:

  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.70x vs 0.62x).
  • 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 (1620k vs 1040k dots).
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (12 vs 8 flaps/sec) to capture the decisive moment.
  • Longer lasting: Gets more shots (800 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 built-in to reduce the impact of hand-shake.
  • Easier geotagging: Features an internal GPS sensor to log localization data.
  • Faster data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • 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.
  • Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More modern: Reflects 4 years and 2 months of technical progress since the X-T20 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the K-3 III is the clear winner of the contest (19 : 11 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.

X-T20 11:19 K-3 III

How about other alternatives? Do the specifications of the Fujifilm X-T20 and the Pentax K-3 III 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 the spec-sheets of cameras can offer a general idea of their imaging potential, it says little about, for example, the shooting experience and imaging performance of the X-T20 and the K-3 III in practical situations. 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 where reviews by experts come in. 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.

scroll hint
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.
 
Fujifilm X-T205/5+ +5/582/1005/54.5/5 Jan 2017 899ebay.com
2.
 
Pentax K-3 III4/5..3/5..4.5/5.. Mar 2021 1,999 amazon.com
3.
 
Fujifilm X-A3......74/1004.5/54/5 Aug 2016 399ebay.com
4.
 
Fujifilm X-A5..+4.1/5..4/53.5/5 Jan 2018 399ebay.com
5.
 
Fujifilm X-E24/5....80/1004.5/55/5 Oct 2013 999ebay.com
6.
 
Fujifilm X-E34.5/5+4.5/584/1004.5/54.5/5 Sep 2017 899ebay.com
7.
 
Fujifilm X-E44/5..4/5..4.5/54/5 Jan 2021 849 amazon.com
8.
 
Fujifilm X-H1..+5/586/1004.5/54.5/5 Feb 2018 1,899ebay.com
9.
 
Fujifilm X-T104.5/5+ +..80/1005/55/5 May 2015 799ebay.com
10.
 
Fujifilm X-T305/5+ +5/584/1004.5/54.5/5 Feb 2019 899ebay.com
11.
 
Fujifilm X-T30 II5/5..4/5..4.5/54.5/5 Sep 2021 899 amazon.com
12.
 
Fujifilm X-T1004/5+4.5/579/1004/54.5/5 May 2018 599ebay.com
13.
 
Fujifilm X704.5/5....76/1004.5/54.5/5 Jan 2016 799ebay.com
14.
 
Pentax K-34/5....83/1005/55/5 Oct 2013 1,299ebay.com
15.
 
Pentax K-3 II4.5/5......5/55/5 Apr 2015 1,099ebay.com
16.
 
Pentax K-704.5/5..4/579/1004.5/54.5/5 Jun 2016 649ebay.com
17.
 
Pentax KP4/5..3/582/1005/54.5/5 Jan 2017 1,099ebay.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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, 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.

logo
Check X-T20 offers at
ebay.com
logo
Check K-3 III price at
amazon.com

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

~
    loader
    ad

    Specifications: Fujifilm X-T20 vs Pentax K-3 III

    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-T20 Pentax K-3 III
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Fujifilm X mount lenses Pentax K mount lenses
    Launch Date January 2017 March 2021
    Launch Price USD 899 USD 1,999
    Sensor Specs Fujifilm X-T20 Pentax K-3 III
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor APS-C Sensor
    Sensor Size 23.6 x 15.6 mm 23.3 x 15.5 mm
    Sensor Area 368.16 mm2 361.15 mm2
    Sensor Diagonal 28.3 mm 28 mm
    Crop Factor 1.5x 1.5x
    Sensor Resolution 24 Megapixels 25.6 Megapixels
    Image Resolution 6000 x 4000 pixels 6192 x 4128 pixels
    Pixel Pitch 3.92 μm 3.76 μm
    Pixel Density 6.52 MP/cm2 7.08 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 4K/30p Video 4K/30p Video
    ISO Setting 200 - 12,800 ISO 100 - 160,000 ISO
    ISO Boost 100 - 51,200 ISO no Enhancement
    Image Processor X-Processor Pro2 PRIME V
    Screen Specs Fujifilm X-T20 Pentax K-3 III
    Viewfinder Type Electronic viewfinder Optical viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.62x 0.70x
    Viewfinder Resolution 2360k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.2inch
    LCD Resolution 1040k dots 1620k dots
    LCD Attachment Tilting screen Fixed screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Fujifilm X-T20 Pentax K-3 III
    Focus System On-Sensor Phase-detect Phase-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 8 shutter flaps/s 12 shutter flaps/s
    Electronic Shutterup to 1/32000sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDXC cards SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support UHS-I Single UHS-II
    Connectivity Specs Fujifilm X-T20 Pentax K-3 III
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.2
    HDMI Port micro HDMI micro HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Geotagging no internal GPS GPS built-in
    Body Specs Fujifilm X-T20 Pentax K-3 III
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Fujifilm NP-W126S Pentax D-LI90
    Battery Life (CIPA)350 shots per charge800 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 118 x 83 x 41 mm
    (4.6 x 3.3 x 1.6 in)
    135 x 104 x 74 mm
    (5.3 x 4.1 x 2.9 in)
    Camera Weight 383 g (13.5 oz) 820 g (28.9 oz)
    logo
    Check X-T20 offers at
    ebay.com
    logo
    Check K-3 III price at
    amazon.com

    Did you notice an error on this page? If so, please get in touch, so that we can correct the information.

    You are here Home  »  CAM-parator  »  Fujifilm X-T20 vs Pentax K-3 III