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Fujifilm X-T4 vs Pentax K-1

The Fujifilm X-T4 and the Pentax K-1 are two enthusiast cameras that were officially introduced, respectively, in February 2020 and February 2016. The X-T4 is a mirrorless interchangeable lens camera, while the K-1 is a DSLR. The cameras are based on an APS-C (X-T4) and a full frame (K-1) sensor. The Fujifilm has a resolution of 26 megapixels, whereas the Pentax provides 36.2 MP.

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

Headline Specifications
Fujifilm X-T4
versus
Pentax K-1
Fujifilm X-T4 Pentax K-1
Mirrorless system camera Digital single lens reflex
Fujifilm X mount lenses Pentax K mount lenses
26 MP, APS-C Sensor 36.2 MP, Full Frame Sensor
4K/60p Video 1080/60i Video
ISO 160-12,800 (80 - 51,200) ISO 100-204,800
Electronic viewfinder (3690k dots) Optical viewfinder
3.0 LCD, 1620k dots 3.2 LCD, 1037k dots
Swivel touchscreen Fully flexible screen (no touchscreen)
15 shutter flaps per second 4.4 shutter flaps per second
In-body stabilizationIn-body stabilization
Weathersealed bodyWeathersealed body
500 shots per battery charge760 shots per battery charge
135 x 93 x 64 mm, 607 g 137 x 110 x 86 mm, 1010 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm X-T4 and the Pentax K-1? 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.

Body comparison

The side-by-side display below illustrates the physical size and weight of the Fujifilm X-T4 and the Pentax K-1. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All size dimensions are rounded to the nearest millimeter.

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

Size Fujifilm X-T4 vs Pentax K-1
Compare X-T4 versus K-1 top
Comparison X-T4 or K-1 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax K-1 is notably larger (20 percent) than the Fujifilm X-T4. Moreover, the K-1 is substantially heavier (66 percent) than the X-T4. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

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-T4 gets 500 shots out of its NP-W235 battery, while the K-1 can take 760 images on a single charge of its D-LI90 power pack. The power pack in the X-T4 can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Fujifilm X-T4 135 mm 93 mm 64 mm 607 g 500 Y Feb 2020 1,699 i
2.
 
Pentax K-1 137 mm 110 mm 86 mm 1010 g 760 Y Feb 2016 1,799 i
3.
 
Canon 5D Mark IV 151 mm 116 mm 76 mm 890 g 900 Y Aug 2016 3,499 i
4.
 
Fujifilm X100V 128 mm 75 mm 53 mm 478 g 420 Y Feb 2020 1,399 i
5.
 
Fujifilm X-Pro3 141 mm 83 mm 46 mm 497 g 440 Y Oct 2019 1,799 i
6.
 
Fujifilm X-T3 133 mm 93 mm 59 mm 539 g 390 Y Sep 2018 1,499 i
7.
 
Fujifilm X-H1 140 mm 97 mm 86 mm 673 g 310 Y Feb 2018 1,899 i
8.
 
Fujifilm X-Pro2 141 mm 83 mm 46 mm 495 g 350 Y Jan 2016 1,699 i
9.
 
Fujifilm X-T2 133 mm 92 mm 49 mm 507 g 340 Y Jul 2016 1,599 i
10.
 
Nikon Z5 134 mm 101 mm 67 mm 675 g 470 Y Jul 2020 1,399 i
11.
 
Nikon D500 147 mm 115 mm 81 mm 860 g 1240 Y Jan 2016 1,999 i
12.
 
Olympus E-M1 II 134 mm 91 mm 67 mm 574 g 440 Y Sep 2016 1,999 i
13.
 
Panasonic S5 133 mm 98 mm 82 mm 714 g 440 Y Sep 2020 1,999 i
14.
 
Pentax K-1 II 137 mm 110 mm 86 mm 1010 g 670 Y Feb 2018 1,999 i
15.
 
Sony A6600 120 mm 67 mm 69 mm 503 g 810 Y Aug 2019 1,399 i
16.
 
Sony A99 II 143 mm 104 mm 76 mm 849 g 490 Y Sep 2016 3,199 i
17.
 
Sony A77 143 mm 104 mm 81 mm 732 g 470 Y Aug 2011 1,399 i
Notes: 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 retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The X-T4 was somewhat cheaper (by 6 percent) than the K-1 at launch, but both cameras fall into the same price category. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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.

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Sensor comparison

The size of the imaging sensor is a crucial determinant of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixels in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Fujifilm X-T4 features an APS-C sensor and the Pentax K-1 a full frame sensor. The sensor area in the K-1 is 135 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Fujifilm X-T4 and Pentax K-1 sensor measures

With 36.2MP, the K-1 offers a higher resolution than the X-T4 (26MP), but the K-1 nevertheless has larger individual pixels (pixel pitch of 4.88μm versus 3.76μm for the X-T4) due to its larger sensor. However, the X-T4 is a much more recent model (by 4 years) than the K-1, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. 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 resolution advantage of the Pentax K-1 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the K-1 for good quality output (200 dots per inch) amounts to 36.8 x 24.6 inches or 93.5 x 62.4 cm, for very good quality (250 dpi) 29.4 x 19.6 inches or 74.8 x 49.9 cm, and for excellent quality (300 dpi) 24.5 x 16.4 inches or 62.3 x 41.6 cm. The corresponding values for the Fujifilm X-T4 are 31.2 x 20.8 inches or 79.2 x 52.8 cm for good quality, 25 x 16.6 inches or 63.4 x 42.3 cm for very good quality, and 20.8 x 13.9 inches or 52.8 x 35.2 cm for excellent quality prints.

The X-T4 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the X-T4, the K-1 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 Fujifilm X-T4 has a native sensitivity range from ISO 160 to ISO 12800, which can be extended to ISO 80-51200. The corresponding ISO settings for the Pentax K-1 are ISO 100 to ISO 204800 (no boost).

X-T4 versus K-1 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). 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
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Fujifilm X-T4 APS-C 26.0 6240 41604K/60p...... ..
2.
 
Pentax K-1 Full Frame 36.2 7360 49121080/60i25.414.63280 96
3.
 
Canon 5D Mark IV Full Frame 30.1 6720 44804K/30p24.813.62995 91
4.
 
Fujifilm X100V APS-C 26.0 6240 41604K/30p...... ..
5.
 
Fujifilm X-Pro3 APS-C 26.0 6240 41604K/30p...... ..
6.
 
Fujifilm X-T3 APS-C 26.0 6240 41604K/60p...... ..
7.
 
Fujifilm X-H1 APS-C 24.0 6000 40004K/30p...... ..
8.
 
Fujifilm X-Pro2 APS-C 24.0 6000 40001080/60p...... ..
9.
 
Fujifilm X-T2 APS-C 24.0 6000 40004K/30p...... ..
10.
 
Nikon Z5 Full Frame 24.2 6016 40164K/30p...... ..
11.
 
Nikon D500 APS-C 20.7 5568 37124K/30p24.014.01324 83
12.
 
Olympus E-M1 II Four Thirds 20.2 5184 38884K/30p23.712.81312 80
13.
 
Panasonic S5 Full Frame 24.0 6000 40004K/60p...... ..
14.
 
Pentax K-1 II Full Frame 36.2 7360 49121080/60i...... ..
15.
 
Sony A6600 APS-C 24.0 6000 40004K/30p23.813.41497 82
16.
 
Sony A99 II Full Frame 42.2 7952 53044K/30p25.413.42317 92
17.
 
Sony A77 APS-C 24.0 6000 40001080/60p24.013.2801 78

Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the X-T4 provides a higher video resolution than the K-1. It can shoot video footage at 4K/60p, while the Pentax is limited to 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 X-T4 has an electronic viewfinder (3690k dots), while the K-1 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 X-T4 has a higher magnification than the one of the K-1 (0.75x vs 0.70x), 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-T4 and Pentax K-1 in connection with corresponding information for a sample of similar cameras.

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Core Features
    Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
(000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Fujifilm X-T43690 n 3.0 1620 swivel Y 1/8000s 15.0 n Y
2.
 
Pentax K-1optical Y 3.2 1037 full-flex n 1/8000s 4.4 n Y
3.
 
Canon 5D Mark IVoptical Y 3.2 1620 fixed Y 1/8000s 7.0 n n
4.
 
Fujifilm X100V3690 n 3.0 1620 tilting Y 1/4000s 11.0 Y n
5.
 
Fujifilm X-Pro33690 n 3.0 1620 tilting Y 1/8000s 8.0 n n
6.
 
Fujifilm X-T33690 n 3.0 1040 tilting Y 1/8000s 11.0 n n
7.
 
Fujifilm X-H13690 Y 3.0 1040 full-flex Y 1/8000s 14.0 n Y
8.
 
Fujifilm X-Pro22360 n 3.0 1620 fixed n 1/8000s 8.0 n n
9.
 
Fujifilm X-T22360 n 3.0 1040 tilting n 1/8000s 8.0 n n
10.
 
Nikon Z53690 n 3.2 1040 tilting Y 1/8000s 4.5 n Y
11.
 
Nikon D500optical Y 3.2 2359 tilting Y 1/8000s 10.0 n n
12.
 
Olympus E-M1 II2360 n 3.0 1037 swivel Y 1/8000s 18.0 n Y
13.
 
Panasonic S52360 n 3.0 1840 full-flex Y 1/8000s 7.0 n Y
14.
 
Pentax K-1 IIoptical Y 3.2 1037 full-flex n 1/8000s 4.4 n Y
15.
 
Sony A66002359 n 3.0 922 tilting Y 1/4000s 11.0 n Y
16.
 
Sony A99 II2400 Y 3.0 1229 full-flex n 1/8000s 12.0 n Y
17.
 
Sony A772359 Y 3.0 921 full-flex n 1/8000s 12.0 Y Y

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The X-T4 has a touchscreen, while the K-1 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The X-T4 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-1 does not have a selfie-screen.

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-T4 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-T4 and the Pentax K-1 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-T4 and the K-1 write their files to SDXC cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails. The X-T4 supports UHS-II cards (on both slots), while the K-1 can use UHS-I cards.

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Connectivity comparison

For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Fujifilm X-T4 and Pentax K-1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
    Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Fujifilm X-T4YstereomonoY-micro3.1Y-Y
2.
 
Pentax K-1YstereomonoYYmicro2.0Y--
3.
 
Canon 5D Mark IVYmonomonoYYmini3.0YY-
4.
 
Fujifilm X100VYstereomonoY-micro3.1Y-Y
5.
 
Fujifilm X-Pro3YstereomonoY--3.1Y-Y
6.
 
Fujifilm X-T3YstereomonoYYmicro3.1Y-Y
7.
 
Fujifilm X-H1YstereomonoY-micro3.0Y--
8.
 
Fujifilm X-Pro2YstereomonoY-micro2.0Y--
9.
 
Fujifilm X-T2YstereomonoY-micro3.0Y--
10.
 
Nikon Z5YstereomonoYYmicro3.2Y-Y
11.
 
Nikon D500YstereomonoYYmini3.0YYY
12.
 
Olympus E-M1 IIYstereomonoYYmicro3.0Y--
13.
 
Panasonic S5YstereomonoYYmicro3.2Y-Y
14.
 
Pentax K-1 IIYstereomonoYYmicro2.0Y--
15.
 
Sony A6600YstereomonoYYYES2.0YYY
16.
 
Sony A99 IIYstereomonoYYmicro2.0YYY
17.
 
Sony A77YstereomonoY-mini2.0---

It is notable that the K-1 has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The X-T4 lacks such a headphone port.

Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.

Travel and landscape photographers will find it useful that the K-1 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

The X-T4 is a recent model that features in the current product line-up of Fujifilm. In contrast, the K-1 has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the K-1 was succeeded by the Pentax K-1 II. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Fujifilm and Pentax websites.

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Review summary

So how do things add up? Is the Fujifilm X-T4 better than the Pentax K-1 or vice versa? Below is a summary of the relative strengths of each of the two contestants.

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Advantages of the Fujifilm X-T4:

  • Better video: Provides higher definition movie capture (4K/60p vs 1080/60i).
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.75x vs 0.70x).
  • More detailed LCD: Has a higher resolution rear screen (1620k vs 1037k dots).
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (15 vs 4.4 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • More compact: Is smaller (135x93mm vs 137x110mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 403g or 40 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.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More modern: Reflects 4 years of technical progress since the K-1 launch.

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Reasons to prefer the Pentax K-1:

  • More detail: Has more megapixels (36.2 vs 26MP), which boosts linear resolution by 18%.
  • 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.
  • 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.
  • Longer lasting: Gets more shots (760 versus 500) out of a single battery charge.
  • Easier geotagging: Features an internal GPS sensor to log localization data.
  • More heavily discounted: Has been around for much longer (launched in February 2016).

If the count of relative strengths (bullet points above) is taken as a measure, the X-T4 is the clear winner of the match-up (17 : 9 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. 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-T4 17:09 K-1

How about other alternatives? Do the specifications of the Fujifilm X-T4 and the Pentax K-1 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 remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the X-T4 or the K-1. 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.

Expert reviews

This is why hands-on reviews by experts are important. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (amateurphotographer [AP], cameralabs [CL], 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
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Fujifilm X-T45/5+ +..5/55/5 Feb 2020 1,699 i
2.
 
Pentax K-15/5..84/1005/55/5 Feb 2016 1,799 i
3.
 
Canon 5D Mark IV4.5/5+ +87/1004.5/54.5/5 Aug 2016 3,499 i
4.
 
Fujifilm X100V5/5+ +86/1005/54.5/5 Feb 2020 1,399 i
5.
 
Fujifilm X-Pro34/5+85/1004/5.. Oct 2019 1,799 i
6.
 
Fujifilm X-T35/5+ +88/1005/55/5 Sep 2018 1,499 i
7.
 
Fujifilm X-H1..+86/1004.5/54.5/5 Feb 2018 1,899 i
8.
 
Fujifilm X-Pro2..+83/1004.5/54.5/5 Jan 2016 1,699 i
9.
 
Fujifilm X-T25/5+ +86/1004.5/55/5 Jul 2016 1,599 i
10.
 
Nikon Z54/5..89/1004.5/54/5 Jul 2020 1,399 i
11.
 
Nikon D5005/5+ +91/1004.5/55/5 Jan 2016 1,999 i
12.
 
Olympus E-M1 II5/5+ +85/1004.5/54.5/5 Sep 2016 1,999 i
13.
 
Panasonic S54.5/5+ +88/1004.5/54.5/5 Sep 2020 1,999 i
14.
 
Pentax K-1 II....79/1004.5/54.5/5 Feb 2018 1,999 i
15.
 
Sony A66004/5+83/1004.5/54/5 Aug 2019 1,399 i
16.
 
Sony A99 II....85/1004.5/54.5/5 Sep 2016 3,199 i
17.
 
Sony A775/591/10081/100..5/5 Aug 2011 1,399 i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The ratings are only valid when referring to cameras in the same category and of the same age. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Fujifilm X-T4:
Check Amazon price
Pentax K-1:
Check Ebay offers

Other camera comparisons

Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Fujifilm X-T4 vs Pentax K-1

    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-T4 Pentax K-1
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Fujifilm X mount lenses Pentax K mount lenses
    Launch Date February 2020 February 2016
    Launch Price USD 1,699 USD 1,799
    Sensor Specs Fujifilm X-T4 Pentax K-1
    Sensor Technology BSI-CMOS CMOS
    Sensor Format APS-C Sensor Full Frame Sensor
    Sensor Size 23.5 x 15.6 mm 35.9 x 24.0 mm
    Sensor Area 366.6 mm2 861.6 mm2
    Sensor Diagonal 28.2 mm 43.2 mm
    Crop Factor 1.5x 1.0x
    Sensor Resolution 26 Megapixels 36.2 Megapixels
    Image Resolution 6240 x 4160 pixels 7360 x 4912 pixels
    Pixel Pitch 3.76 μm 4.88 μm
    Pixel Density 7.08 MP/cm2 4.20 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 4K/60p Video 1080/60i Video
    ISO Setting 160 - 12,800 ISO 100 - 204,800 ISO
    ISO Boost 80 - 51,200 ISO no Enhancement
    Image Processor X-Processor 4 PRIME IV
    DXO Sensor Quality (score) .. 96
    DXO Color Depth (bits) .. 25.4
    DXO Dynamic Range (EV) .. 14.6
    DXO Low Light (ISO) .. 3280
    Screen Specs Fujifilm X-T4 Pentax K-1
    Viewfinder Type Electronic viewfinder Optical viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.75x 0.70x
    Viewfinder Resolution 3690k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.2inch
    LCD Resolution 1620k dots 1037k dots
    LCD Attachment Swivel screen Fully flexible screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Fujifilm X-T4 Pentax K-1
    Focus System On-Sensor Phase-detect Phase-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/8000s
    Continuous Shooting 15 shutter flaps/s 4.4 shutter flaps/s
    Shutter Life Expectancy300 000 actuations300 000 actuations
    Electronic Shutterup to 1/32000sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium SDXC cards SDXC cards
    Second Storage Option Dual card slots Dual card slots
    UHS card support Dual UHS-II UHS-I
    Connectivity Specs Fujifilm X-T4 Pentax K-1
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector USB 3.1 USB 2.0
    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 Bluetooth built-in no Bluetooth
    Geotagging no internal GPS GPS built-in
    Body Specs Fujifilm X-T4 Pentax K-1
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type NP-W235 D-LI90
    Battery Life (CIPA)500 shots per charge760 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 135 x 93 x 64 mm
    (5.3 x 3.7 x 2.5 in)
    137 x 110 x 86 mm
    (5.4 x 4.3 x 3.4 in)
    Camera Weight 607 g (21.4 oz) 1010 g (35.6 oz)

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