Fujifilm GFX 100 II vs Pentax K100D Super

In this comparison, we will evaluate the Fujifilm GFX 100 II and the Pentax K100D Super, highlighting the advantages of each over the other, discussing their pros and cons, shared strengths and weaknesses, and providing a rating based on their available features and specifications to assist you in choosing the one that best suits your needs.

Fujifilm GFX 100 II was introduced in September 2023 and Pentax K100D Super was introduced in June 2007. Let us first list highlights of the models.

Now that we've looked at the most essential specifications and gained a basic understanding of these cameras, we can delve into more details and see the differences between them.

This section shows those features and specifications which are the reason to choose Fujifilm GFX 100 II over Pentax K100D Super.

This section shows those features and specifications which are the reason to choose Pentax K100D Super over Fujifilm GFX 100 II.

We already listed pros and cons of each model. However, you may also find useful to look at their common strengths and weaknesses shown side-by-side.

Screen

Fujifilm GFX 100 II has a 3.2" Tilting screen with 2,360k dots resolution and Pentax K100D Super has a 2.5" Fixed screen with 210k dot resolution. Tilting screen makes Fujifilm GFX 100 II very useful for photography purposes but not so useful for video shooting. Fujifilm GFX 100 II also features touchscreen which has advantages such as easy menu navigation, intuitive controls, quick setting adjustment and most importantly a Touch-to-Focus functionality allowing users to select a specific point on the screen where they want the camera to focus. This feature can be helpful for achieving precise focus in both photo and video recording.

Viewfinder

Fujifilm GFX 100 II has a built-in 0.64" Electronic (OLED) viewfinder with 9,440k dots resolution and Pentax K100D Super has a built-in Optical (pentamirror) viewfinder. Fujifilm GFX 100 II has 100% coverage with 1x (1.27x 35mm equivalent) magnification and Pentax K100D Super has 96% coverage with 0.85x (0.57x 35mm equivalent) magnification.

Fujifilm GFX 100 II features a 102 megapixel Medium Format BSI-CMOS sensor with dimensions of 43.8 x 32.9 mm and a total area of 1441 mm². Its native ISO range is Still: 80 - 12,800
Movie: 100 - 12,800 and expands to Still: 40 - 102,800
Movie: 100 - 25,600 in boosted mode. Pentax K100D Super features a 6.1 megapixel APS-C CCD sensor with dimensions of 23.5 x 15.7 mm and a total area of 246.5 mm². Its native ISO range is 200 - 3,200.

Fujifilm GFX 100 II has BSI-CMOS sensor, short for Backside Illuminated Complementary Metal-Oxide-Semiconductor sensor. In traditional CMOS sensors, the wiring and circuitry are located on the front side of the sensor, which can block some of the incoming light. BSI technology flips this design by placing the photosensitive elements (pixels) on the backside of the sensor, allowing more light to reach the pixels. This significantly enhances light sensitivity and improves low-light performance. BSI-CMOS sensors are particularly effective in low-light conditions, as they can capture more light, resulting in brighter and less noisy images. This makes them well-suited for indoor and night photography. BSI-CMOS sensors deliver a higher SNR and reduced cross-talk.

Here is a sensor size comparison chart where you can see how different sensors compare with each other:

Sensor size chart

	Sensor	Dimensions	Area	Aspect Ratio	Crop Factor
	Medium Format	44 x 33 mm	1452 mm2	4:3	0.79x
	Full Frame	36 x 24 mm	864 mm2	3:2	1x
	APS-H	27 x 18 mm	486 mm2	3:2	1.3x
	APS-C	23.6 x 15.6 mm	368.2 mm2	3:2	1.5x
	APS-C (Canon)	22.3 x 14.9 mm	332.3 mm2	3:2	1.6x
	Micro Four Thirds	17.4 x 13 mm	226.2 mm2	4:3	2x
	1-inch	13.2 x 8.8 mm	116.2 mm2	3:2	2.7x
	1/1.7-inch	7.44 x 5.58 mm	41.5 mm2	4:3	4.7x
	1/2.3-inch	6.17 x 4.55 mm	28.1 mm2	4:3	5.6x

Fujifilm GFX 100 II is equipped with X-Processor 5 processor and can take pictures up to 11648 x 8736 resolution. Pentax K100D Super can take pictures up to 3008 x 2008 resolution. It can also take pictures with lower resolution like 2400 x 1600, 1536 x 1024 with 3:2 aspect ratios.

Lens Mount

Fujifilm GFX 100 II has Fujifilm G lens mount and Pentax K100D Super has Pentax K_AF2 lens mount. Due to Medium Format sensor in Fujifilm GFX 100 II its crop factor is equal to 0.79x, this means that a 35mm equivalent focal length of the mounted lens will be equal to its actual focal length times 0.79. Due to APS-C sensor in Pentax K100D Super its crop factor is equal to 1.5x, this means that a 35mm equivalent focal length of the mounted lens will be equal to its actual focal length times 1.5.

No Low-Pass Filter on Fujifilm GFX 100 II

There is no optical low-pass filter (OLPF), also known as an anti-aliasing filter, in front of the sensor on Fujifilm GFX 100 II. This results in a slightly sharper image but may also introduce moiré patterns and aliasing artifacts when photographing subjects with fine, repetitive patterns or details.

In-Body Image Stabilization

The cameras have a built-in in-body image stabilization (IBIS) (8 stops of compensation in Fujifilm GFX 100 II). This means that you are still getting vibration reduction when cameras are paired with non-image stabilizied lenses. It also works with lenses with optical image stabilization and in combination can achieve even better compensation.

Built-in Wi-Fi on Fujifilm GFX 100 II

Fujifilm GFX 100 II has a built-in Wi-Fi (Wi-Fi 5, 802.11ac/b/g/n, 2.4/5 GHz) which allows to easily transfer photos and videos from the camera to other Wi-Fi-enabled devices, such as smartphones, tablets, printers, or computers. This eliminates the need for cables and allows for quick and convenient media sharing and social media integration. It gives you the ability to control your camera remotely using a smartphone or tablet. This is particularly useful for taking self-portraits, group shots, or capturing images in challenging conditions without having to touch the camera. Firmware updates can also be downloaded and installed wirelessly.
  Check out the cameras in our database that have built-in WiFi.

Bluetooth on Fujifilm GFX 100 II

Fujifilm GFX 100 II has a built-in Bluetooth (version 4.2) which lets you to connect the camera to a smartphone or a dedicated remote control device. This allows you to remotely trigger the camera, adjust settings and controls remotely through a paired mobile app. While Wi-Fi is generally faster for transferring larger files, Bluetooth can be used for small, selective transfers, it can provide real-time information about your camera's battery status, memory card capacity, and other key settings directly on your paired smartphone or smartwatch.
  Check out the cameras in our database that have built-in Bluetooth.

USB Inputs and HDMI Outputs

Both models have USB inputs for data transfer. connector for video signal output.

Battery

Fujifilm GFX 100 II comes with NP-W235 battery pack with battery life of 540 shots and Pentax K100D Super comes with 4 x AA battery pack.

External Storage Slots

Fujifilm GFX 100 II has two card slots - one for SD/SDHC/SDXC (UHS-II) and one for CFexpress Type B. Pentax K100D Super has a single SD/SDHC card slot.

Shutter

Fujifilm GFX 100 II has Mechanical Focal Plane shutter and Electronic shutter. Pentax K100D Super has Electronically controlled Vertical Run Focal Plane shutter. Shutter speed can go up to 1/32000 sec with electronic shutter and up to 1/4000 sec with mechanical shutter on Fujifilm GFX 100 II, and up to 1/4000 sec on Pentax K100D Super. Fujifilm GFX 100 II can shoot continuously up to 8.0 fps. Pentax K100D Super can shoot continuously up to 2.8 fps.

Flash

Pentax K100D Super has a built-in flash and also accepts external flash which can be connected via Hot Shoe. Fujifilm GFX 100 II has no built-in flash but an external flash may be connected via Shoe Mount or PC Terminal. The fastest flash synchronization speed is 1/125 sec on Fujifilm GFX 100 II and 1/180 sec on Pentax K100D Super.

Fujifilm GFX 100 II body has dimensions of 152 x 117 x 99 mm (5.98 x 4.61 x 3.9") and Pentax K100D Super body has dimensions of 129 x 91 x 71 mm (5.08 x 3.58 x 2.8"). Fujifilm GFX 100 II weighs 1030 g (2.27 lb / 36.33 oz) and Pentax K100D Super weighs 646 g (1.42 lb / 22.79 oz).

Fujifilm GFX 100 II

Pentax K100D Super

152 mm

117 mm

129 mm

91 mm

117 mm

91 mm

99 mm

71 mm