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Pentax K-1 II vs Fujifilm GFX 100

The Pentax K-1 II and the Fujifilm GFX 100 are two digital cameras that were revealed to the public, respectively, in February 2018 and May 2019. The K-1 II is a DSLR, while the GFX 100 is a mirrorless interchangeable lens camera. The cameras are based on a full frame (K-1 II) and a medium format (GFX 100) sensor. The Pentax has a resolution of 36.2 megapixels, whereas the Fujifilm provides 101.8 MP.

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

Headline Specifications
Pentax K-1 II
versus
Fujifilm GFX 100
Pentax K-1 II   Fujifilm GFX 100
Digital single lens reflex Mirrorless system camera
Pentax K mount lenses Fujifilm G mount lenses
36.2 MP – Full Frame sensor 101.8 MP – Medium Format sensor
1080/60i Video 4K/30p Video
ISO 100-819,200 ISO 100-12,800 (50 - 102,400)
Optical viewfinder Viewfinder optional
3.2" LCD – 1037k dots 3.2" LCD – 2360k dots
Fully flexible screen (no touchscreen) Fully flexible touchscreen
4.4 shutter flaps per second 5 shutter flaps per second
In-body stabilizationIn-body stabilization
Weathersealed bodyWeathersealed body
670 shots per battery charge800 shots per battery charge
137 x 110 x 86 mm, 1010 g 156 x 144 x 75 mm, 1320 g
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Check K-1 II price at
amazon.com
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Check GFX 100 offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Pentax K-1 II and the Fujifilm GFX 100? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

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Body comparison

The side-by-side display below illustrates the physical size and weight of the Pentax K-1 II and the Fujifilm GFX 100. 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 Pentax K-1 II vs Fujifilm GFX 100
Compare K-1 II versus GFX 100 top
Comparison K-1 II or GFX 100 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Fujifilm GFX 100 is considerably larger (49 percent) than the Pentax K-1 II. Moreover, the GFX 100 is markedly heavier (31 percent) than the K-1 II. 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 K-1 II gets 670 shots out of its Pentax D-LI90 battery, while the GFX 100 can take 800 images on a single charge of its Fujifilm NP-T125 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, which can be very convenient when travelling.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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.

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Body Specifications
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Pentax K-1 II 137 mm 110 mm 86 mm 1010 g 670 Y Feb 2018 1,999 amazon.com
2.
 
Fujifilm GFX 100 156 mm 144 mm 75 mm 1320 g 800 Y May 2019 9,999ebay.com
3.
 
Canon R 139 mm 98 mm 84 mm 660 g 370 Y Sep 2018 2,299ebay.com
4.
 
Fujifilm GFX 100 II 152 mm 117 mm 99 mm 1030 g 540 Y Sep 2023 7,499 amazon.com
5.
 
Fujifilm GFX 100S 150 mm 104 mm 87 mm 900 g 460 Y Jan 2021 5,999 amazon.com
6.
 
Fujifilm GFX 50S II 150 mm 104 mm 87 mm 900 g 440 Y Sep 2021 3,999 amazon.com
7.
 
Fujifilm GFX 50R 161 mm 97 mm 66 mm 775 g 400 Y Sep 2018 4,499ebay.com
8.
 
Hasselblad X2D 100C 149 mm 106 mm 75 mm 895 g 420 Y Sep 2022 8,199 amazon.com
9.
 
Nikon Z6 134 mm 101 mm 67 mm 675 g 310 Y Aug 2018 1,999ebay.com
10.
 
Panasonic S1 149 mm 110 mm 97 mm 1017 g 400 Y Feb 2019 2,499 amazon.com
11.
 
Panasonic S1R 149 mm 110 mm 97 mm 1016 g 380 Y Feb 2019 3,699 amazon.com
12.
 
Panasonic S1H 151 mm 114 mm 110 mm 1052 g 400 Y May 2019 3,999 amazon.com
13.
 
Pentax K-1 137 mm 110 mm 86 mm 1010 g 760 Y Feb 2016 1,799ebay.com
14.
 
Sony A7 III 127 mm 96 mm 74 mm 650 g 610 Y Feb 2018 1,999 amazon.com
15.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199ebay.com
16.
 
Sony A99 II 143 mm 104 mm 76 mm 849 g 490 Y Sep 2016 3,199ebay.com
17.
 
Sony A850 156 mm 117 mm 82 mm 895 g 880 Y Aug 2009 1,999ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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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 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. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Sensor comparison

The size of the 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. 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.

Of the two cameras under consideration, the Pentax K-1 II features a full frame sensor and the Fujifilm GFX 100 a medium format sensor. The sensor area in the GFX 100 is 67 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 0.79. The sensor in the K-1 II has a native 3:2 aspect ratio, while the one in the GFX 100 offers a 4:3 aspect.

Pentax K-1 II and Fujifilm GFX 100 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). Yet, 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 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 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 Pentax K-1 II has a native sensitivity range from ISO 100 to ISO 819200. The corresponding ISO settings for the Fujifilm GFX 100 are ISO 100 to ISO 12800, with the possibility to increase the ISO range to 50-102400.

In terms of underlying technology, the K-1 II is build around a CMOS sensor, while the GFX 100 uses a BSI-CMOS imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

K-1 II versus GFX 100 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 following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

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Sensor Characteristics
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Pentax K-1 II Full Frame 36.2 7360 49121080/60i25.114.0269893
2.
 
Fujifilm GFX 100 Medium Format 101.8 11648 87364K/30p25.714.5322799
3.
 
Canon R Full Frame 30.1 6720 44804K/30p24.513.5274289
4.
 
Fujifilm GFX 100 II Medium Format 101.8 11648 87368K/30p25.915.03651101
5.
 
Fujifilm GFX 100S Medium Format 101.8 11648 87364K/30p25.814.73391100
6.
 
Fujifilm GFX 50S II Medium Format 51.1 8256 61921080/30p25.914.83456100
7.
 
Fujifilm GFX 50R Medium Format 51.1 8256 61921080/30p25.714.4316998
8.
 
Hasselblad X2D 100C Medium Format 102.1 11656 8762none25.914.93550101
9.
 
Nikon Z6 Full Frame 24.3 6048 40244K/30p25.314.3329995
10.
 
Panasonic S1 Full Frame 24.0 6000 40004K/60p25.214.5333395
11.
 
Panasonic S1R Full Frame 46.7 8368 55844K/60p26.414.13525100
12.
 
Panasonic S1H Full Frame 24.0 6000 40006K/30p25.214.2280594
13.
 
Pentax K-1 Full Frame 36.2 7360 49121080/60i25.414.6328096
14.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096
15.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
16.
 
Sony A99 II Full Frame 42.2 7952 53044K/30p25.413.4231792
17.
 
Sony A850 Full Frame 24.4 6048 4032none23.812.2141579
Note: DXO values in italics represent estimates based on sensor size and age.
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Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the GFX 100 provides a better video resolution than the K-1 II. It can shoot movie footage at 4K/30p, 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 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 Pentax K-1 II and Fujifilm GFX 100 along with similar information for a selection of comparators.

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Core Features
# image 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.
 
Pentax K-1 IIoptical Y3.2 / 1037 full-flex n 1/8000s 4.4/s n Y
2.
 
Fujifilm GFX 100optional Y3.2 / 2360 full-flex Y 1/4000s 5.0/s n Y
3.
 
Canon R3690 Y3.2 / 2100 swivel Y 1/8000s 8.0/s n n
4.
 
Fujifilm GFX 100 II9440 Y3.2 / 2360 full-flex Y 1/4000s 8.0/s n Y
5.
 
Fujifilm GFX 100S3690 Y3.2 / 2360 full-flex Y 1/4000s 5.0/s n Y
6.
 
Fujifilm GFX 50S II3690 Y3.2 / 2360 full-flex Y 1/4000s 3.0/s n Y
7.
 
Fujifilm GFX 50R3690 n3.2 / 2360 tilting Y 1/4000s 3.0/s n n
8.
 
Hasselblad X2D 100C5760 Y3.6 / 2360 tilting Y 1/4000s 3.3/s n Y
9.
 
Nikon Z63690 Y3.2 / 2100 tilting Y 1/8000s 12.0/s n Y
10.
 
Panasonic S15760 Y3.2 / 2100 full-flex Y 1/8000s 9.0/s n Y
11.
 
Panasonic S1R5760 Y3.2 / 2100 full-flex Y 1/8000s 9.0/s n Y
12.
 
Panasonic S1H5760 Y3.2 / 2330 swivel Y 1/8000s 9.0/s n Y
13.
 
Pentax K-1optical Y3.2 / 1037 full-flex n 1/8000s 4.4/s n Y
14.
 
Sony A7 III2359 n3.0 / 922 tilting Y 1/8000s 10.0/s n Y
15.
 
Sony A7R III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
16.
 
Sony A99 II2400 Y3.0 / 1229 full-flex n 1/8000s 12.0/s n Y
17.
 
Sony A850optical Y3.0 / 922 fixed n 1/8000s 3.0/s n Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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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 Pentax K-1 II and the Fujifilm GFX 100 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 K-1 II and the GFX 100 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.

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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 Pentax K-1 II and Fujifilm GFX 100 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Pentax K-1 IIYstereo / monoYYmicro2.0Y--
2.
 
Fujifilm GFX 100Ystereo / monoYYmicro3.1Y-Y
3.
 
Canon RYstereo / monoYYmini3.1Y-Y
4.
 
Fujifilm GFX 100 IIYstereo / monoYYfull3.2Y-Y
5.
 
Fujifilm GFX 100SYstereo / monoYYmicro3.2Y-Y
6.
 
Fujifilm GFX 50S IIYstereo / monoYYmicro3.2Y--
7.
 
Fujifilm GFX 50RYstereo / monoYYmicro3.0Y-Y
8.
 
Hasselblad X2D 100CYstereo / mono---3.2Y--
9.
 
Nikon Z6Ystereo / monoYYmicro3.1Y-Y
10.
 
Panasonic S1Ystereo / monoYYfull3.1Y-Y
11.
 
Panasonic S1RYstereo / monoYYfull3.1Y-Y
12.
 
Panasonic S1HYstereo / monoYYfull3.1Y-Y
13.
 
Pentax K-1Ystereo / monoYYmicro2.0Y--
14.
 
Sony A7 IIIYstereo / monoYYmicro3.1YYY
15.
 
Sony A7R IIIYstereo / monoYYmicro3.1YYY
16.
 
Sony A99 IIYstereo / monoYYmicro2.0YYY
17.
 
Sony A850Y- / ---mini2.0---
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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.

The K-1 II is a recent model that features in the current product line-up of Pentax. In contrast, the GFX 100 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the GFX 100 was succeeded by the Fujifilm GFX 100 II. Further information on the features and operation of the K-1 II and GFX 100 can be found, respectively, in the Pentax K-1 II Manual (free pdf) or the online Fujifilm GFX 100 Manual.

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Review summary

So what is the bottom line? Which of the two cameras – the Pentax K-1 II or the Fujifilm GFX 100 – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.

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Arguments in favor 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.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • More compact: Is smaller (137x110mm vs 156x144mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 310g or 23 percent) and hence easier to carry around.
  • 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).

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Advantages of the Fujifilm GFX 100:

  • More detail: Has more megapixels (101.8 vs 36.2MP), which boosts linear resolution by 65%.
  • Better image quality: Is equipped with a larger and more technologically advanced 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: Has a touchscreen to facilitate handling and shooting adjustments.
  • 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: Gets more shots (800 versus 670) out of a single battery charge.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • More legacy lens friendly: Can use many 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: Was introduced somewhat (1 year and 2 months) more recently.

If the number of relative strengths (bullet points above) is taken as a guide, the GFX 100 is the clear winner of the contest (19 : 8 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.

K-1 II 08:19 GFX 100

How about other alternatives? Do the specifications of the Pentax K-1 II and the Fujifilm GFX 100 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it says little about, for example, the shooting experience and imaging performance of the K-1 II and the GFX 100 in practical situations. 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 where reviews by experts come in. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

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Expert Camera Reviews
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Pentax K-1 II....4.5/579/1004.5/54.5/5 Feb 2018 1,999 amazon.com
2.
 
Fujifilm GFX 1004.5/5+ +4.8/590/1005/54.5/5 May 2019 9,999ebay.com
3.
 
Canon R4/5o4/579/1004.5/54/5 Sep 2018 2,299ebay.com
4.
 
Fujifilm GFX 100 II5/5+5/5....4.5/5 Sep 2023 7,499 amazon.com
5.
 
Fujifilm GFX 100S5/5+ +5/590/1005/55/5 Jan 2021 5,999 amazon.com
6.
 
Fujifilm GFX 50S II5/5..5/587/100..5/5 Sep 2021 3,999 amazon.com
7.
 
Fujifilm GFX 50R5/5..5/584/1004.5/54.5/5 Sep 2018 4,499ebay.com
8.
 
Hasselblad X2D 100C4/5..5/5...... Sep 2022 8,199 amazon.com
9.
 
Nikon Z65/5..5/589/1004.5/55/5 Aug 2018 1,999ebay.com
10.
 
Panasonic S14.5/5+ +4.5/588/1004.5/54/5 Feb 2019 2,499 amazon.com
11.
 
Panasonic S1R4.5/5..4.6/589/1004.5/54.5/5 Feb 2019 3,699 amazon.com
12.
 
Panasonic S1H....4/590/100.... May 2019 3,999 amazon.com
13.
 
Pentax K-15/5....84/1005/55/5 Feb 2016 1,799ebay.com
14.
 
Sony A7 III..+ +4.5/589/1005/55/5 Feb 2018 1,999 amazon.com
15.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 3,199ebay.com
16.
 
Sony A99 II....4.5/585/1004.5/54.5/5 Sep 2016 3,199ebay.com
17.
 
Sony A8503/5....75/100..4.5/5 Aug 2009 1,999ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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The above review scores should be interpreted with care, 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. Also, please note that some of the review sites have changed their methodology and reporting over time.

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Check K-1 II price at
amazon.com
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Check GFX 100 offers at
ebay.com

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. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications: Pentax K-1 II vs Fujifilm GFX 100

    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 Pentax K-1 II Fujifilm GFX 100
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Pentax K mount lenses Fujifilm G mount lenses
    Launch Date February 2018 May 2019
    Launch Price USD 1,999 USD 9,999
    Sensor Specs Pentax K-1 II Fujifilm GFX 100
    Sensor Technology CMOS BSI-CMOS
    Sensor Format Full Frame Sensor Medium Format Sensor
    Sensor Size 35.9 x 24.0 mm 43.8 x 32.9 mm
    Sensor Area 861.6 mm2 1441.02 mm2
    Sensor Diagonal 43.2 mm 54.8 mm
    Crop Factor 1.0x 0.79x
    Sensor Resolution 36.2 Megapixels 101.8 Megapixels
    Image Resolution 7360 x 4912 pixels 11648 x 8736 pixels
    Pixel Pitch 4.88 μm 3.76 μm
    Pixel Density 4.20 MP/cm2 7.06 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 1080/60i Video 4K/30p Video
    ISO Setting 100 - 819,200 ISO 100 - 12,800 ISO
    ISO Boost no Enhancement 50 - 102,400 ISO
    Image Processor PRIME IV X-Processor 4
    Screen Specs Pentax K-1 II Fujifilm GFX 100
    Viewfinder Type Optical viewfinder Viewfinder optional
    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 1037k dots 2360k dots
    LCD Attachment Fully flexible screen Fully flexible screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Pentax K-1 II Fujifilm GFX 100
    Focus System Phase-detect AF On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/4000s
    Continuous Shooting 4.4 shutter flaps/s 5 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/16000s
    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
    Single or Dual Card Slots Dual card slots Dual card slots
    UHS card support UHS-I Dual UHS-II
    Connectivity Specs Pentax K-1 II Fujifilm GFX 100
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector USB 2.0 USB 3.1
    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 no Bluetooth Bluetooth built-in
    Geotagging GPS built-in no internal GPS
    Body Specs Pentax K-1 II Fujifilm GFX 100
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Pentax D-LI90 Fujifilm NP-T125
    Battery Life (CIPA)670 shots per charge800 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 137 x 110 x 86 mm
    (5.4 x 4.3 x 3.4 in)
    156 x 144 x 75 mm
    (6.1 x 5.7 x 3.0 in)
    Camera Weight 1010 g (35.6 oz) 1320 g (46.6 oz)
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