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Fujifilm GFX 100 vs Pentax K-1 II

The Fujifilm GFX 100 and the Pentax K-1 II are two digital cameras that were announced, respectively, in May 2019 and February 2018. The GFX 100 is a mirrorless interchangeable lens camera, while the K-1 II is a DSLR. The cameras are based on a medium format (GFX 100) and a full frame (K-1 II) sensor. The Fujifilm has a resolution of 101.8 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 GFX 100
versus
Pentax K-1 II
Fujifilm GFX 100   Pentax K-1 II
Mirrorless system camera Digital single lens reflex
Fujifilm G mount lenses Pentax K mount lenses
101.8 MP, Medium Format Sensor 36.2 MP, Full Frame Sensor
4K/30p Video 1080/60i Video
ISO 100-12,800 (50 - 102,400) ISO 100-819,200
Viewfinder optional Optical viewfinder
3.2 LCD, 2360k dots 3.2 LCD, 1037k dots
Tilting touchscreen Fully flexible screen (no touchscreen)
5 shutter flaps per second 4.4 shutter flaps per second
In-body stabilizationIn-body stabilization
Weathersealed bodyWeathersealed body
800 shots per battery charge670 shots per battery charge
156 x 144 x 75 mm, 1320 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 GFX 100 and the Pentax K-1 II? 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 GFX 100 and the Pentax K-1 II. 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.

The K-1 II can be obtained in two different colors (black, silver), while the GFX 100 is only available in black.

Size Fujifilm GFX 100 vs Pentax K-1 II
Compare GFX 100 versus K-1 II top
Comparison GFX 100 or K-1 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-1 II is considerably smaller (33 percent) than the Fujifilm GFX 100. Moreover, the K-1 II is markedly lighter (23 percent) than the GFX 100. 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 GFX 100 gets 800 shots out of its NP-T125 battery, while the K-1 II can take 670 images on a single charge of its D-LI90 power pack. As can be seen in the images above, the GFX 100 has a battery grip built in. This facilitates image-taking in portrait orientation and gives it additional battery power. In order to provide similar functionality for the K-1 II, Pentax provides the D-BG6 vertical grip as an optional accessory (see here on eBay). The power pack in the GFX 100 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. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

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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 GFX 100 156 mm 144 mm 75 mm 1320 g 800 Y May 2019 9,999 i
2.
 
Pentax K-1 II 137 mm 110 mm 86 mm 1010 g 670 Y Feb 2018 1,999 i
3.
 
Fujifilm GFX 100S 150 mm 104 mm 87 mm 900 g 460 Y Jan 2021 5,999 i
4.
 
Fujifilm X-T4 135 mm 93 mm 64 mm 607 g 500 Y Feb 2020 1,699 i
5.
 
Fujifilm XP140 110 mm 71 mm 28 mm 207 g 240 Y Feb 2019 229 i
6.
 
Fujifilm X-H1 140 mm 97 mm 86 mm 673 g 310 Y Feb 2018 1,899 i
7.
 
Fujifilm GFX 50R 161 mm 97 mm 66 mm 775 g 400 Y Sep 2018 4,499 i
8.
 
Fujifilm GFX 50S 148 mm 94 mm 91 mm 740 g 400 Y Sep 2016 6,499 i
9.
 
Panasonic S1R 149 mm 110 mm 97 mm 1016 g 380 Y Feb 2019 3,699 i
10.
 
Pentax K-1 137 mm 110 mm 86 mm 1010 g 760 Y Feb 2016 1,799 i
11.
 
Pentax 645Z 156 mm 117 mm 123 mm 1550 g 650 Y Apr 2014 8,499 i
12.
 
Pentax 645D 156 mm 117 mm 119 mm 1480 g 800 Y Mar 2010 9,995 i
13.
 
Sony A7 III 127 mm 96 mm 74 mm 650 g 610 Y Feb 2018 1,999 i
14.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199 i
15.
 
Sony A99 II 143 mm 104 mm 76 mm 849 g 490 Y Sep 2016 3,199 i
16.
 
Sony A850 156 mm 117 mm 82 mm 895 g 880 Y Aug 2009 1,999 i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

Any camera decision will naturally be influenced heavily by the price. 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 K-1 II was launched at a markedly lower price (by 80 percent) than the GFX 100, which puts it into a different market segment. 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.

Sensor comparison

The size of the sensor inside a digital camera is one of the key determinants 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. 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 more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Fujifilm GFX 100 features a medium format sensor and the Pentax K-1 II a full frame sensor. The sensor area in the K-1 II is 40 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 0.79 and 1.0. The sensor in the GFX 100 has a native 4:3 aspect ratio, while the one in the K-1 II offers a 3:2 aspect.

Fujifilm GFX 100 and Pentax K-1 II sensor measures

With 101.8MP, the GFX 100 offers a higher resolution than the K-1 II (36.2MP), but the GFX 100 has smaller individual pixels (pixel pitch of 3.76μm versus 4.88μm for the K-1 II). However, the GFX 100 is a somewhat more recent model (by 1 year and 2 months) than the K-1 II, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that 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 Fujifilm GFX 100 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the GFX 100 for good quality output (200 dots per inch) amounts to 58.2 x 43.7 inches or 147.9 x 110.9 cm, for very good quality (250 dpi) 46.6 x 34.9 inches or 118.3 x 88.8 cm, and for excellent quality (300 dpi) 38.8 x 29.1 inches or 98.6 x 74 cm. The corresponding values for the Pentax K-1 II are 36.8 x 24.6 inches or 93.5 x 62.4 cm for good quality, 29.4 x 19.6 inches or 74.8 x 49.9 cm for very good quality, and 24.5 x 16.4 inches or 62.3 x 41.6 cm for excellent quality prints.

The GFX 100 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the GFX 100, the K-1 II has the capacity to capture high quality composite images by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

The Fujifilm GFX 100 has a native sensitivity range from ISO 100 to ISO 12800, which can be extended to ISO 50-102400. The corresponding ISO settings for the Pentax K-1 II are ISO 100 to ISO 819200 (no boost).

GFX 100 versus K-1 II MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 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 GFX 100 Medium Format 101.8 11648 87364K/30p...... ..
2.
 
Pentax K-1 II Full Frame 36.2 7360 49121080/60i...... ..
3.
 
Fujifilm GFX 100S Medium Format 101.8 11648 87364K/30p...... ..
4.
 
Fujifilm X-T4 APS-C 26.0 6240 41604K/60p...... ..
5.
 
Fujifilm XP140 1/2.3 15.9 4608 34564K/15p...... ..
6.
 
Fujifilm X-H1 APS-C 24.0 6000 40004K/30p...... ..
7.
 
Fujifilm GFX 50R Medium Format 51.1 8256 61921080/30p...... ..
8.
 
Fujifilm GFX 50S Medium Format 51.1 8256 61921080/30p...... ..
9.
 
Panasonic S1R Full Frame 46.7 8368 55844K/60p26.414.13525 100
10.
 
Pentax K-1 Full Frame 36.2 7360 49121080/60i25.414.63280 96
11.
 
Pentax 645Z Medium Format 51.1 8256 61921080/60i26.014.74505 101
12.
 
Pentax 645D Medium Format 39.5 7264 5440none24.612.61262 82
13.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.73730 96
14.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523 100
15.
 
Sony A99 II Full Frame 42.2 7952 53044K/30p25.413.42317 92
16.
 
Sony A850 Full Frame 24.4 6048 4032none23.812.21415 79

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 GFX 100 provides a higher video resolution than the K-1 II. It can shoot video footage at 4K/30p, while the Pentax is limited to 1080/60i.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the K-1 II has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the GFX 100 relies on live view and the rear LCD for framing. That said, the GFX 100 can be equipped with an optional viewfinder – the EVF-GFX2. The adjacent table lists some of the other core features of the Fujifilm GFX 100 and Pentax K-1 II along with similar information for a selection of comparators.

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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 GFX 100optional Y 3.2 2360 tilting Y 1/4000s 5.0 n Y
2.
 
Pentax K-1 IIoptical Y 3.2 1037 full-flex n 1/8000s 4.4 n Y
3.
 
Fujifilm GFX 100S3690 Y 3.2 2360 full-flex Y 1/4000s 5.0 n Y
4.
 
Fujifilm X-T43690 n 3.0 1620 swivel Y 1/8000s 15.0 n Y
5.
 
Fujifilm XP140none n 3.0 920 fixed n 1/2000s 10.0 Y Y
6.
 
Fujifilm X-H13690 Y 3.0 1040 full-flex Y 1/8000s 14.0 n Y
7.
 
Fujifilm GFX 50R3690 n 3.2 2360 tilting Y 1/4000s 3.0 n n
8.
 
Fujifilm GFX 50Soptional Y 3.2 2360 full-flex Y 1/4000s 3.0 n n
9.
 
Panasonic S1R5760 Y 3.2 2100 full-flex Y 1/8000s 9.0 n Y
10.
 
Pentax K-1optical Y 3.2 1037 full-flex n 1/8000s 4.4 n Y
11.
 
Pentax 645Zoptical Y 3.2 1037 tilting n 1/4000s 3.0 n n
12.
 
Pentax 645Doptical Y 3.0 921 fixed n 1/4000s 1.1 n n
13.
 
Sony A7 III2359 n 3.0 922 tilting Y 1/8000s 10.0 n Y
14.
 
Sony A7R III3686 n 3.0 1440 tilting Y 1/8000s 10.0 n Y
15.
 
Sony A99 II2400 Y 3.0 1229 full-flex n 1/8000s 12.0 n Y
16.
 
Sony A850optical Y 3.0 922 fixed n 1/8000s 3.0 n Y

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The GFX 100 has a touchscreen, while the K-1 II has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

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 GFX 100 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 GFX 100 and the Pentax K-1 II 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 GFX 100 and the K-1 II write their files to SDXC cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails. The GFX 100 supports UHS-II cards (on both slots), while the K-1 II can use UHS-I cards.

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 GFX 100 and Pentax K-1 II 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 GFX 100YstereomonoYYmicro3.1Y-Y
2.
 
Pentax K-1 IIYstereomonoYYmicro2.0Y--
3.
 
Fujifilm GFX 100SYstereomonoYYmicro3.2Y-Y
4.
 
Fujifilm X-T4YstereomonoY-micro3.1Y-Y
5.
 
Fujifilm XP140-monomono--micro2.0Y-Y
6.
 
Fujifilm X-H1YstereomonoY-micro3.0Y--
7.
 
Fujifilm GFX 50RYstereomonoYYmicro3.0Y-Y
8.
 
Fujifilm GFX 50SYstereomonoYYmicro3.0Y--
9.
 
Panasonic S1RYstereomonoYYfull3.1Y-Y
10.
 
Pentax K-1YstereomonoYYmicro2.0Y--
11.
 
Pentax 645ZYstereomonoY-mini3.0---
12.
 
Pentax 645DYstereo----2.0---
13.
 
Sony A7 IIIYstereomonoYYmicro3.1YYY
14.
 
Sony A7R IIIYstereomonoYYmicro3.1YYY
15.
 
Sony A99 IIYstereomonoYYmicro2.0YYY
16.
 
Sony A850Y----mini2.0---

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 II has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

Both the GFX 100 and the K-1 II are recent models that are part of the current product line-up. The K-1 II replaced the earlier Pentax K-1, while the GFX 100 does not have a direct predecessor. 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.

Review summary

So how do things add up? Which of the two cameras – the Fujifilm GFX 100 or the Pentax K-1 II – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

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Arguments in favor of the Fujifilm GFX 100:

  • More detail: Offers more megapixels (101.8 vs 36.2MP) with a 65% higher linear resolution.
  • Better image quality: Features a larger and more technologically advanced imaging sensor.
  • Richer colors: The sensor size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60i).
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • More detailed LCD: Has a higher resolution rear screen (2360k vs 1037k dots).
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Faster burst: Shoots at higher frequency (5 vs 4.4 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
  • Longer lasting: Can take more shots (800 versus 670) on a single battery charge.
  • 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: Is somewhat more recent (announced 1 year and 2 months after the K-1 II).

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Advantages of the Pentax K-1 II:

  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Easier framing: Has an optical viewfinder for image composition and settings control.
  • More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • More compact: Is smaller (137x110mm vs 156x144mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 310g or 23 percent) and is thus easier to take along.
  • Easier geotagging: Features an internal GPS sensor to log localization data.
  • More affordable: Was introduced into a lower priced category (80 percent cheaper at launch).
  • More heavily discounted: Has been on the market for longer (launched in February 2018).

If the count of relative strengths (bullet points above) is taken as a measure, the GFX 100 is the clear winner of the match-up (19 : 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 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.

GFX 100 19:09 K-1 II

How about other alternatives? Do the specifications of the Fujifilm GFX 100 and the Pentax K-1 II 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 GFX 100 or the K-1 II. 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 expert reviews 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], 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 GFX 1004.5/5+ +90/1005/54.5/5 May 2019 9,999 i
2.
 
Pentax K-1 II....79/1004.5/54.5/5 Feb 2018 1,999 i
3.
 
Fujifilm GFX 100S5/5+ +90/100..5/5 Jan 2021 5,999 i
4.
 
Fujifilm X-T45/5+ +88/1005/55/5 Feb 2020 1,699 i
5.
 
Fujifilm XP140..+..3.5/54/5 Feb 2019 229 i
6.
 
Fujifilm X-H1..+86/1004.5/54.5/5 Feb 2018 1,899 i
7.
 
Fujifilm GFX 50R5/5..84/1004.5/54.5/5 Sep 2018 4,499 i
8.
 
Fujifilm GFX 50S....85/1005/54.5/5 Sep 2016 6,499 i
9.
 
Panasonic S1R4.5/5..89/1004.5/54.5/5 Feb 2019 3,699 i
10.
 
Pentax K-15/5..84/1005/55/5 Feb 2016 1,799 i
11.
 
Pentax 645Z5/5....4.5/55/5 Apr 2014 8,499 i
12.
 
Pentax 645D5/5........ Mar 2010 9,995 i
13.
 
Sony A7 III..+ +89/1005/55/5 Feb 2018 1,999 i
14.
 
Sony A7R III..+ +90/1004.5/55/5 Oct 2017 3,199 i
15.
 
Sony A99 II....85/1004.5/54.5/5 Sep 2016 3,199 i
16.
 
Sony A8503/5..75/100..4.5/5 Aug 2009 1,999 i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. Thus, a score needs to be put into the context of the launch date and the launch price 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. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

Fujifilm GFX 100:
Check Amazon price
Pentax K-1 II:
Check Amazon price

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

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    Specifications: Fujifilm GFX 100 vs Pentax K-1 II

    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 GFX 100 Pentax K-1 II
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Fujifilm G mount lenses Pentax K mount lenses
    Launch Date May 2019 February 2018
    Launch Price USD 9,999 USD 1,999
    Sensor Specs Fujifilm GFX 100 Pentax K-1 II
    Sensor Technology BSI-CMOS CMOS
    Sensor Format Medium Format Sensor Full Frame Sensor
    Sensor Size 43.8 x 32.9 mm 35.9 x 24.0 mm
    Sensor Area 1441.02 mm2 861.6 mm2
    Sensor Diagonal 54.8 mm 43.2 mm
    Crop Factor 0.79x 1.0x
    Sensor Resolution 101.8 Megapixels 36.2 Megapixels
    Image Resolution 11648 x 8736 pixels 7360 x 4912 pixels
    Pixel Pitch 3.76 μm 4.88 μm
    Pixel Density 7.06 MP/cm2 4.20 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 4K/30p Video 1080/60i Video
    ISO Setting 100 - 12,800 ISO 100 - 819,200 ISO
    ISO Boost 50 - 102,400 ISO no Enhancement
    Image Processor X-Processor 4 PRIME IV
    Screen Specs Fujifilm GFX 100 Pentax K-1 II
    Viewfinder Type Viewfinder optional Optical viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.70x
    Top-Level Screen Control Panel Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.2inch 3.2inch
    LCD Resolution 2360k dots 1037k dots
    LCD Attachment Tilting screen Fully flexible screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Fujifilm GFX 100 Pentax K-1 II
    Focus System On-Sensor Phase-detect Phase-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 5 shutter flaps/s 4.4 shutter flaps/s
    Electronic Shutterup to 1/16000sno 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 GFX 100 Pentax K-1 II
    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 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 GFX 100 Pentax K-1 II
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type NP-T125 D-LI90
    Battery Life (CIPA)800 shots per charge670 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 156 x 144 x 75 mm
    (6.1 x 5.7 x 3.0 in)
    137 x 110 x 86 mm
    (5.4 x 4.3 x 3.4 in)
    Camera Weight 1320 g (46.6 oz) 1010 g (35.6 oz)

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