Fujifilm GFX 100 vs Pentax K-3 III
The Fujifilm GFX 100 and the Pentax K-3 III are two digital cameras that were announced, respectively, in May 2019 and March 2021. The GFX 100 is a mirrorless interchangeable lens camera, while the K-3 III is a DSLR. The cameras are based on a medium format (GFX 100) and an APS-C (K-3 III) sensor. The Fujifilm has a resolution of 101.8 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.
Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm GFX 100 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.
Body comparison
The side-by-side display below illustrates the physical size and weight of the Fujifilm GFX 100 and the Pentax K-3 III. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth measures are rounded to the nearest millimeter.
The K-3 III can be obtained in two different colors (black, silver), while the GFX 100 is only available in black.
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 smaller (37 percent) than the Fujifilm GFX 100. Moreover, the K-3 III is substantially lighter (38 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.
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-3 III, Pentax provides the D-BG8 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 following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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.
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 | ebay.com | |
2. | Pentax K-3 III | 135 mm | 104 mm | 74 mm | 820 g | 800 | Y | Mar 2021 | 1,999 | amazon.com | |
3. | Fujifilm GFX 50R | 161 mm | 97 mm | 66 mm | 775 g | 400 | Y | Sep 2018 | 4,499 | ebay.com | |
4. | Fujifilm GFX 50S | 148 mm | 94 mm | 91 mm | 740 g | 400 | Y | Sep 2016 | 6,499 | ebay.com | |
5. | Fujifilm GFX 50S II | 150 mm | 104 mm | 87 mm | 900 g | 440 | Y | Sep 2021 | 3,999 | amazon.com | |
6. | Fujifilm GFX 100 II | 152 mm | 117 mm | 99 mm | 1030 g | 540 | Y | Sep 2023 | 7,499 | amazon.com | |
7. | Fujifilm GFX 100S | 150 mm | 104 mm | 87 mm | 900 g | 460 | Y | Jan 2021 | 5,999 | amazon.com | |
8. | Fujifilm X-H1 | 140 mm | 97 mm | 86 mm | 673 g | 310 | Y | Feb 2018 | 1,899 | ebay.com | |
9. | Fujifilm XP140 | 110 mm | 71 mm | 28 mm | 207 g | 240 | Y | Feb 2019 | 229 | ebay.com | |
10. | Hasselblad X2D 100C | 149 mm | 106 mm | 75 mm | 895 g | 420 | Y | Sep 2022 | 8,199 | amazon.com | |
11. | Pentax 645D | 156 mm | 117 mm | 119 mm | 1480 g | 800 | Y | Mar 2010 | 9,995 | ebay.com | |
12. | Pentax 645Z | 156 mm | 117 mm | 123 mm | 1550 g | 650 | Y | Apr 2014 | 8,499 | ebay.com | |
13. | Pentax K-3 | 131 mm | 100 mm | 77 mm | 800 g | 560 | Y | Oct 2013 | 1,299 | ebay.com | |
14. | Pentax K-3 II | 131 mm | 100 mm | 77 mm | 800 g | 720 | Y | Apr 2015 | 1,099 | ebay.com | |
15. | Pentax K-70 | 126 mm | 93 mm | 74 mm | 688 g | 410 | Y | Jun 2016 | 649 | ebay.com | |
16. | Pentax KP | 132 mm | 101 mm | 76 mm | 703 g | 390 | Y | Jan 2017 | 1,099 | ebay.com | |
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders. | |||||||||||
Any camera decision will obviously take relative prices into account. 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-3 III 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 imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have 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-3 III an APS-C sensor. The sensor area in the K-3 III is 75 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 0.79 and 1.5. The sensor in the GFX 100 has a native 4:3 aspect ratio, while the one in the K-3 III offers a 3:2 aspect.
With 101.8MP, the GFX 100 offers a higher resolution than the K-3 III (25.6MP), but the GFX 100 nevertheless has the same individual pixel size (pixel pitch of 3.76μm) as the K-3 III due to its larger sensor. Moreover, the K-3 III is a somewhat more recent model (by 1 year and 10 months) than the GFX 100, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.
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-3 III are 31 x 20.6 inches or 78.6 x 52.4 cm for good quality, 24.8 x 16.5 inches or 62.9 x 41.9 cm for very good quality, and 20.6 x 13.8 inches or 52.4 x 35 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-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 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-3 III are ISO 100 to ISO 160000 (no boost).
In terms of underlying technology, the GFX 100 is build around a BSI-CMOS sensor, while the K-3 III uses a 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.
Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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.
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 | 8736 | 4K/30p | 25.7 | 14.5 | 3227 | 99 | |
2. | Pentax K-3 III | APS-C | 25.6 | 6192 | 4128 | 4K/30p | 24.2 | 13.7 | 2083 | 85 | |
3. | Fujifilm GFX 50R | Medium Format | 51.1 | 8256 | 6192 | 1080/30p | 25.7 | 14.4 | 3169 | 98 | |
4. | Fujifilm GFX 50S | Medium Format | 51.1 | 8256 | 6192 | 1080/30p | 25.4 | 14.1 | 2977 | 96 | |
5. | Fujifilm GFX 50S II | Medium Format | 51.1 | 8256 | 6192 | 1080/30p | 25.9 | 14.8 | 3456 | 100 | |
6. | Fujifilm GFX 100 II | Medium Format | 101.8 | 11648 | 8736 | 8K/30p | 25.9 | 15.0 | 3651 | 101 | |
7. | Fujifilm GFX 100S | Medium Format | 101.8 | 11648 | 8736 | 4K/30p | 25.8 | 14.7 | 3391 | 100 | |
8. | Fujifilm X-H1 | APS-C | 24.0 | 6000 | 4000 | 4K/30p | 24.0 | 13.3 | 1806 | 82 | |
9. | Fujifilm XP140 | 1/2.3 | 15.9 | 4608 | 3456 | 4K/15p | 20.7 | 12.2 | 1102 | 52 | |
10. | Hasselblad X2D 100C | Medium Format | 102.1 | 11656 | 8762 | none | 25.9 | 14.9 | 3550 | 101 | |
11. | Pentax 645D | Medium Format | 39.5 | 7264 | 5440 | none | 24.6 | 12.6 | 1262 | 82 | |
12. | Pentax 645Z | Medium Format | 51.1 | 8256 | 6192 | 1080/60i | 26.0 | 14.7 | 4505 | 101 | |
13. | Pentax K-3 | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.7 | 13.4 | 1216 | 80 | |
14. | Pentax K-3 II | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.6 | 13.6 | 1106 | 80 | |
15. | Pentax K-70 | APS-C | 24.0 | 6000 | 4000 | 1080/60i | 23.8 | 13.1 | 1639 | 80 | |
16. | Pentax KP | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.9 | 13.2 | 1699 | 81 | |
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 can also record movies. 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).
Feature comparison
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the K-3 III 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 table below summarizes some of the other core capabilities of the Fujifilm GFX 100 and Pentax K-3 III in connection with corresponding information for a sample of similar cameras.
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 GFX 100 | optional | Y | 3.2 / 2360 | full-flex | Y | 1/4000s | 5.0/s | n | Y | |
2. | Pentax K-3 III | optical | Y | 3.2 / 1620 | fixed | Y | 1/8000s | 12.0/s | n | Y | |
3. | Fujifilm GFX 50R | 3690 | n | 3.2 / 2360 | tilting | Y | 1/4000s | 3.0/s | n | n | |
4. | Fujifilm GFX 50S | optional | Y | 3.2 / 2360 | full-flex | Y | 1/4000s | 3.0/s | n | n | |
5. | Fujifilm GFX 50S II | 3690 | Y | 3.2 / 2360 | full-flex | Y | 1/4000s | 3.0/s | n | Y | |
6. | Fujifilm GFX 100 II | 9440 | Y | 3.2 / 2360 | full-flex | Y | 1/4000s | 8.0/s | n | Y | |
7. | Fujifilm GFX 100S | 3690 | Y | 3.2 / 2360 | full-flex | Y | 1/4000s | 5.0/s | n | Y | |
8. | Fujifilm X-H1 | 3690 | Y | 3.0 / 1040 | full-flex | Y | 1/8000s | 14.0/s | n | Y | |
9. | Fujifilm XP140 | none | n | 3.0 / 920 | fixed | n | 1/2000s | 10.0/s | Y | Y | |
10. | Hasselblad X2D 100C | 5760 | Y | 3.6 / 2360 | tilting | Y | 1/4000s | 3.3/s | n | Y | |
11. | Pentax 645D | optical | Y | 3.0 / 921 | fixed | n | 1/4000s | 1.1/s | n | n | |
12. | Pentax 645Z | optical | Y | 3.2 / 1037 | tilting | n | 1/4000s | 3.0/s | n | n | |
13. | Pentax K-3 | optical | Y | 3.2 / 1037 | fixed | n | 1/8000s | 8.3/s | Y | Y | |
14. | Pentax K-3 II | optical | Y | 3.2 / 1037 | fixed | n | 1/8000s | 8.3/s | n | Y | |
15. | Pentax K-70 | optical | n | 3.0 / 921 | swivel | n | 1/6000s | 6.0/s | Y | Y | |
16. | Pentax KP | optical | n | 3.0 / 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. |
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-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 GFX 100 and the K-3 III write their files to SDXC cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails. However, while the GFX 100 supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s) on both slots, the K-3 III supports UHS-II only on its first slot and UHS-I (data transfer speed up to 104 MB/s) on the second one.
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-3 III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Camera Model |
Hotshoe Port |
Internal Mic / Speaker |
Microphone Port |
Headphone Port |
HDMI Port |
USB Port |
WiFi Support |
NFC Support |
Bluetooth Support |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Fujifilm GFX 100 | Y | stereo / mono | Y | Y | micro | 3.1 | Y | - | Y | |
2. | Pentax K-3 III | Y | stereo / mono | Y | Y | micro | 3.2 | Y | - | Y | |
3. | Fujifilm GFX 50R | Y | stereo / mono | Y | Y | micro | 3.0 | Y | - | Y | |
4. | Fujifilm GFX 50S | Y | stereo / mono | Y | Y | micro | 3.0 | Y | - | - | |
5. | Fujifilm GFX 50S II | Y | stereo / mono | Y | Y | micro | 3.2 | Y | - | - | |
6. | Fujifilm GFX 100 II | Y | stereo / mono | Y | Y | full | 3.2 | Y | - | Y | |
7. | Fujifilm GFX 100S | Y | stereo / mono | Y | Y | micro | 3.2 | Y | - | Y | |
8. | Fujifilm X-H1 | Y | stereo / mono | Y | - | micro | 3.0 | Y | - | - | |
9. | Fujifilm XP140 | - | mono / mono | - | - | micro | 2.0 | Y | - | Y | |
10. | Hasselblad X2D 100C | Y | stereo / mono | - | - | - | 3.2 | Y | - | - | |
11. | Pentax 645D | Y | stereo / - | - | - | - | 2.0 | - | - | - | |
12. | Pentax 645Z | Y | stereo / mono | Y | - | mini | 3.0 | - | - | - | |
13. | Pentax K-3 | Y | mono / mono | Y | Y | mini | 3.0 | - | - | - | |
14. | Pentax K-3 II | Y | mono / mono | Y | Y | mini | 3.0 | - | - | - | |
15. | Pentax K-70 | Y | stereo / mono | Y | - | mini | 2.0 | Y | - | - | |
16. | Pentax KP | Y | stereo / mono | Y | - | - | 2.0 | Y | - | - |
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-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 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 GFX 100 and K-3 III can be found, respectively, in the Fujifilm GFX 100 Manual (free pdf) or the online Pentax K-3 III Manual.
Review summary
So how do things add up? Is there a clear favorite between the Fujifilm GFX 100 and the Pentax K-3 III? Which camera is better? The listing below highlights the relative strengths of the two models.
Reasons to prefer the Fujifilm GFX 100:
- More detail: Offers more megapixels (101.8 vs 25.6MP) with a 96% higher linear resolution.
- Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
- Richer colors: The pixel size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- More detailed LCD: Has a higher resolution rear screen (2360k vs 1620k dots).
- More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
- 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.
- More heavily discounted: Has been on the market for longer (launched in May 2019).
Advantages of the Pentax K-3 III:
- 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.
- Faster burst: Shoots at higher frequency (12 vs 5 flaps/sec) to capture the decisive moment.
- More compact: Is smaller (135x104mm vs 156x144mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 500g or 38 percent) and is thus easier to take along.
- Easier geotagging: Features an internal GPS sensor to log localization data.
- Faster data transfer: Supports a more advanced USB protocol (3.2 vs 3.1).
- More affordable: Was introduced into a lower priced category (80 percent cheaper at launch).
- More modern: Was introduced somewhat (1 year and 10 months) more recently.
If the number of relative strengths (bullet points above) is taken as a guide, the GFX 100 emerges as the winner of the contest (13 : 10 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding 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.
How about other alternatives? Do the specifications of the Fujifilm GFX 100 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 remains incomplete and does no justice, for example, to the way the GFX 100 or the K-3 III perform in practice. 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 table below provides a synthesis of the camera assessments of some of the best known photo-gear 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.
Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price (USD) |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Fujifilm GFX 100 | 4.5/5 | + + | 4.8/5 | 90/100 | 5/5 | 4.5/5 | May 2019 | 9,999 | ebay.com | |
2. | Pentax K-3 III | 4/5 | .. | 3/5 | .. | 4.5/5 | .. | Mar 2021 | 1,999 | amazon.com | |
3. | Fujifilm GFX 50R | 5/5 | .. | 5/5 | 84/100 | 4.5/5 | 4.5/5 | Sep 2018 | 4,499 | ebay.com | |
4. | Fujifilm GFX 50S | .. | .. | 4.5/5 | 85/100 | 5/5 | 4.5/5 | Sep 2016 | 6,499 | ebay.com | |
5. | Fujifilm GFX 50S II | 5/5 | .. | 5/5 | 87/100 | .. | 5/5 | Sep 2021 | 3,999 | amazon.com | |
6. | Fujifilm GFX 100 II | 5/5 | + | 5/5 | .. | .. | 4.5/5 | Sep 2023 | 7,499 | amazon.com | |
7. | Fujifilm GFX 100S | 5/5 | + + | 5/5 | 90/100 | 5/5 | 5/5 | Jan 2021 | 5,999 | amazon.com | |
8. | Fujifilm X-H1 | .. | + | 5/5 | 86/100 | 4.5/5 | 4.5/5 | Feb 2018 | 1,899 | ebay.com | |
9. | Fujifilm XP140 | .. | + | .. | .. | 3.5/5 | 4/5 | Feb 2019 | 229 | ebay.com | |
10. | Hasselblad X2D 100C | 4/5 | .. | 5/5 | .. | .. | .. | Sep 2022 | 8,199 | amazon.com | |
11. | Pentax 645D | 5/5 | .. | .. | .. | .. | .. | Mar 2010 | 9,995 | ebay.com | |
12. | Pentax 645Z | 5/5 | .. | 3.5/5 | .. | 4.5/5 | 5/5 | Apr 2014 | 8,499 | ebay.com | |
13. | Pentax K-3 | 4/5 | .. | .. | 83/100 | 5/5 | 5/5 | Oct 2013 | 1,299 | ebay.com | |
14. | Pentax K-3 II | 4.5/5 | .. | .. | .. | 5/5 | 5/5 | Apr 2015 | 1,099 | ebay.com | |
15. | Pentax K-70 | 4.5/5 | .. | 4/5 | 79/100 | 4.5/5 | 4.5/5 | Jun 2016 | 649 | ebay.com | |
16. | Pentax KP | 4/5 | .. | 3/5 | 82/100 | 5/5 | 4.5/5 | Jan 2017 | 1,099 | ebay.com | |
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
The above review scores should be interpreted with care, though. The assessments were made in relation to similar cameras of the same technological generation. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.
Other camera comparisons
Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just use the search menu below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
- Canon D30 vs Fujifilm GFX 100
- Canon G7 X Mark III vs Fujifilm GFX 100
- Canon R6 vs Pentax K-3 III
- Fujifilm GFX 100 vs Nikon D70s
- Fujifilm GFX 100 vs Olympus E-M10
- Fujifilm GFX 100 vs Panasonic GF3
- Fujifilm GFX 100 vs Sony RX10 III
- Hasselblad X2D 100C vs Pentax K-3 III
- Leica M11 vs Pentax K-3 III
- Panasonic TS7 vs Pentax K-3 III
- Pentax K-3 III vs Sony A7 II
- Pentax K-3 III vs Zeiss ZX1
Specifications: Fujifilm GFX 100 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 Model | Fujifilm GFX 100 | Pentax K-3 III |
---|---|---|
Camera Type | Mirrorless system camera | Digital single lens reflex |
Camera Lens | Fujifilm G mount lenses | Pentax K mount lenses |
Launch Date | May 2019 | March 2021 |
Launch Price | USD 9,999 | USD 1,999 |
Sensor Specs | Fujifilm GFX 100 | Pentax K-3 III |
Sensor Technology | BSI-CMOS | CMOS |
Sensor Format | Medium Format Sensor | APS-C Sensor |
Sensor Size | 43.8 x 32.9 mm | 23.3 x 15.5 mm |
Sensor Area | 1441.02 mm2 | 361.15 mm2 |
Sensor Diagonal | 54.8 mm | 28 mm |
Crop Factor | 0.79x | 1.5x |
Sensor Resolution | 101.8 Megapixels | 25.6 Megapixels |
Image Resolution | 11648 x 8736 pixels | 6192 x 4128 pixels |
Pixel Pitch | 3.76 μm | 3.76 μm |
Pixel Density | 7.06 MP/cm2 | 7.08 MP/cm2 |
Moiré control | no AA filter | no AA filter |
Movie Capability | 4K/30p Video | 4K/30p Video |
ISO Setting | 100 - 12,800 ISO | 100 - 160,000 ISO |
ISO Boost | 50 - 102,400 ISO | no Enhancement |
Image Processor | X-Processor 4 | PRIME V |
Screen Specs | Fujifilm GFX 100 | Pentax K-3 III |
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 | 1620k dots |
LCD Attachment | Fully flexible screen | Fixed screen |
Touch Input | Touchscreen | Touchscreen |
Shooting Specs | Fujifilm GFX 100 | Pentax K-3 III |
Focus System | On-Sensor Phase-detect | Phase-detect AF |
Manual Focusing Aid | Focus Peaking | Focus Peaking |
Max Shutter Speed (mechanical) | 1/4000s | 1/8000s |
Continuous Shooting | 5 shutter flaps/s | 12 shutter flaps/s |
Electronic Shutter | up to 1/16000s | no E-Shutter |
Time-Lapse Photography | Intervalometer built-in | Intervalometer built-in |
Image Stabilization | In-body stabilization | In-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 | Dual UHS-II | Single UHS-II |
Connectivity Specs | Fujifilm GFX 100 | Pentax K-3 III |
External Flash | Hotshoe | Hotshoe |
Studio Flash | PC Sync socket | PC Sync socket |
USB Connector | USB 3.1 | USB 3.2 |
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 | Bluetooth built-in |
Geotagging | no internal GPS | GPS built-in |
Body Specs | Fujifilm GFX 100 | Pentax K-3 III |
Environmental Sealing | Weathersealed body | Weathersealed body |
Battery Type | Fujifilm NP-T125 | Pentax D-LI90 |
Battery Life (CIPA) | 800 shots per charge | 800 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) |
135 x 104 x 74 mm (5.3 x 4.1 x 2.9 in) |
Camera Weight | 1320 g (46.6 oz) | 820 g (28.9 oz) |
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