Pentax K-1 II vs. Fujifilm GFX 100S

Camera Comparison, Reviews and Tests

In depth comparison and review of Pentax K-1 II and Fujifilm GFX 100S. Compare design, sensors, proximity features, memory capacities and other important specifications and features to easily choose the right camera for you. Our goal is to help you uncover differences between the products and find the digital camera that will best fit your needs.

Camera Specifications Comparison

Pentax K-1 II vs. Fujifilm GFX 100S Comparison Chart
DESIGN AND DIMENSIONS Pentax K-1 II Fujifilm GFX 100S
Product Type Digital camera - 1080p - SLR with Live View mode, movie recording Digital camera - 4K - mirrorless system with movie recording
Lens Included Body only Body only
Height 11 cm 10.42 cm
Width 13.65 cm 15 cm
Depth 8.55 cm 8.72 cm
Weight 925 g 821 g
Weight Details Camera body only: 925 g
Camera with battery and memory card: 1010 g
Camera body only: 821 g
Camera with battery and memory card: 900 g
Body Material - Magnesium alloy
Enclosure Colour Silver Black
Protection Weatherproof, freezeproof, dust-resistant Weatherproof, freezeproof, dust-resistant
Navigation GPS receiver -
SENSOR Pentax K-1 II Fujifilm GFX 100S
Sensor Resolution 36.4 Megapixel 102 Megapixel
Optical Sensor Type CMOS CMOS
Total Pixels 36,770,000 pixels -
Effective Sensor Resolution 36,400,000 pixels 102,000,000 pixels
Optical Sensor Size 35.9 x 24.0 mm Medium Format (43.8 x 32.9 mm)
Frame Rate (Max Resolution) 30 fps 30 fps
Sensor Dust Reduction Yes Yes
Sensor Features Ultrasonic Wave Motion Cleaning (UWMC) Ultrasonic vibration
Image Stabiliser Optical (5-axis image sensor shift mechanism) Optical (5-axis image sensor shift mechanism)
Built-in Optical Image Stabiliser Yes -
Sensors Magnetometer, digital level metre -
PROCESSOR Pentax K-1 II Fujifilm GFX 100S
Image Processor PRIME IV X-Processor 4
LENS Pentax K-1 II Fujifilm GFX 100S
Lens Mounting Type Pentax K Fujifilm G Mount
FOCUSING Pentax K-1 II Fujifilm GFX 100S
Auto Focus TTL contrast and phase detection TTL contrast and phase detection
Auto Focus Points (Zones) Qty 33 -
AE/AF Control - Subject-tracking AF, Eye detection AF, Zone AF
Face Detection Yes Eye Detect AF, face-priority AF function
VIEWFINDER Pentax K-1 II Fujifilm GFX 100S
Viewfinder Type Optical - fixed eye-level pentaprism Electronic - OLED
Viewfinder Colour Support - Colour
Viewfinder Diagonal Size - 0.5"
Viewfinder Resolution - 3,690,000 pixels
Optical Viewfinder Field Coverage 100% 100%
Optical Viewfinder Magnification 0.70x 0.77x
Optical Viewfinder Dioptric Correction Range -3 to +1.2 -4 to +2
Features - Viewfinder brightness control, auto eye sensor
EXPOSURE & WHITE BALANCE Pentax K-1 II Fujifilm GFX 100S
ISO (Max) 819200 102400
Native ISO 100-819200 -
Extended ISO (Max) - 25600 (H1), 51200 (H2), 102400 (H3)
Extended ISO (Min) - 50
Light Sensitivity ISO auto, ISO 100-819200 ISO 50, ISO auto, ISO 102400, ISO 51200, ISO 25600, ISO 100-12800
Exposure Metering Multi-segment, centre-weighted, spot Multi-segment, centre-weighted, spot, average
Exposure Metering Zones - 256
Exposure Modes Programme, bulb, automatic, manual, aperture-priority, shutter-priority, ISO priority, shutter & aperture priority Automatic, manual, aperture-priority, shutter-priority
Bracketing Modes - Dynamic Range Bracketing, Film Simulation Bracketing, focus bracketing, ISO sensitivity bracketing, white balance bracketing
Special Effects - Chrome, Film Simulation, Grainy Film
White Balance Custom, automatic, presets Custom, automatic, presets
White Balance Presets Cloudy, tungsten light, Flash, daylight, shade, fluorescent light (cool white), fluorescent light (daylight), fluorescent light (warm white), Color Temperature Enhancement (CTE), fluorescent light (daylight white), ASTRO TRACER Incandescent, fluorescent, daylight, shade, fluorescent light (cool white), fluorescent light (warm white), Underwater
Shutter Type Mechanical electronically-controlled Mechanical, electronic
Max Shutter Speed 1/8000 sec 1/16000 sec
Min Shutter Speed 30 sec 30 sec
Exposure Compensation ±5 EV range, in 1/2 or 1/3 EV steps ±5 EV range, in 1/3 EV steps
Auto Exposure Bracketing - 2, 3, 5, 7, 9 steps in 1/3 - 3 EV steps
White Balance Bracketing - Yes
X-sync Speed 1/200sec 1/125sec
Exposure Range EV -3-20 (ISO 100) -
DISPLAY Pentax K-1 II Fujifilm GFX 100S
Type 3.2" LCD display 3.2" LCD display
Touch Screen - Yes
Display Format 1,037,000 pixels 2,360,000 pixels
Display Form Factor Folding Folding
Display Features Colour control, display brightness control, display saturation control Display brightness control, display colour control
VIDEOGRAPHY / CAMCORDER Pentax K-1 II Fujifilm GFX 100S
Digital Video Format H.264, MOV H.264, HEVC, H.265
Image Recording Format JPEG, RAW + JPEG, DNG (RAW), PEF (RAW) JPEG, RAW, RAW + JPEG
Max Video Resolution 1920 x 1080 4096 x 2160
Microphone Operation Mode Stereo -
Microphone Features Wind noise reduction -
MEMORY Pentax K-1 II Fujifilm GFX 100S
Memory Card Slot Dual SD card SD card
Supported Memory Cards SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDHC UHS-I Memory Card, SDXC UHS-I Memory Card SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDHC UHS-I Memory Card, SDXC UHS-I Memory Card, SDHC UHS-II Memory Card, SDXC UHS-II Memory Card
Memory Card Included No No
Memory Card Max Supported Size - 2 TB
Image Storage RAW 7360 x 4912
JPEG 7360 x 4912
JPEG 5760 x 3840
JPEG 4224 x 2816
JPEG 1920 x 1280
RAW 4800 x 3200
JPEG 4800 x 3200
11648 x 8736
11648 x 7768
11648 x 6552
8736 x 8736
11648 x 4304
10928 x 8736
10192 x 8736
8256 x 6192
8256 x 5504
8256 x 4640
6192 x 6192
8256 x 3048
7744 x 6192
7232 x 6192
4000 x 3000
4000 x 2664
4000 x 2248
2992 x 2992
4000 x 1480
3744 x 3000
3504 x 3000
Video Capture 1920 x 1080 i - 60 fps
1920 x 1080 i - 50 fps
1920 x 1080 p - 30 fps
1920 x 1080 p - 25 fps
1920 x 1080 p - 24 fps
1280 x 720 p - 60 fps
1280 x 720 p - 50 fps
4096 x 2160 p
3840 x 2160 p
2048 x 1080 p
1920 x 1080 p
BATTERY AND CHARGING Pentax K-1 II Fujifilm GFX 100S
Battery Type Pentax D-Li90 Lithium Ion Fujifilm NP-W235 Lithium Ion
Details Pentax D-Li90 Li-ion rechargeable battery (included) Fujifilm NP-W235 Li-ion rechargeable battery (included)
Battery Life Photo shooting - 670 shots
Playback - 340 minutes
Photo shooting - 460 shots
Video recording - 95 minutes (4K resolution)
CONNECTIONS Pentax K-1 II Fujifilm GFX 100S
Interface HDMI, USB 2.0, IEEE 802.11b/g/n HDMI, USB-C, IEEE 802.11b/g/n, Bluetooth 4.2
Connectivity Features - Remote control via mobile devices, Wireless Image Transfer
Print Standard - Exif Print support
Computer Connectivity Mac, Windows -
Flash Terminal Hot shoe, PC terminal Hot shoe
Connector Type USB 2.0 (5 pin Micro-USB Type B)
HDMI output (19 pin micro HDMI Type D)
Microphone (mini-phone stereo 3.5 mm)
Headphones (mini-phone stereo 3.5 mm)
USB 3.2 Gen 1 (USB Type-C)
HDMI output (19 pin micro HDMI Type D)
Microphone (mini-phone stereo 3.5 mm)
Headphones (mini-phone stereo 3.5 mm)
Remote control (sub-mini phone 2.5 mm)
FEATURES Pentax K-1 II Fujifilm GFX 100S
Self-Timer Delay 2sec, 12sec 10 sec, 2sec
Continuous Shooting Speed 3 frames per second, 1 frame per second, 0.7 frames per second, 6.4 frames per second, 4.4 frames per second 2 frames per second, 5 frames per second, 2.9 frames per second
HDR Mode Auto HDR mode -
Additional Features Audio recording, digital image rotation, camera orientation detection, histogram display, AE lock, AF lock, cropping an image, resizing an image, interval shooting mode, in-camera RAW processing, peripheral illumination correction, High ISO NR, no anti-aliasing filter, Lens Distortion Correction, primary colour filter, colour moire correction, Lateral Chromatic Aberration Correction, anti-aliasing filter simulator, diffraction correction, Pixel Shift Resolution System II Auto power save, date/time stamp, histogram display, interval shooting mode, in-camera RAW processing
OTHERS Pentax K-1 II Fujifilm GFX 100S
Included Accessories Eyepiece cover, battery charger, body cap, battery grip, eyecup, shoe cap, additional battery, battery grip terminal cover, sync terminal cover Body cap, shoulder strap, AC power adaptor, USB cable, power plug adapter, cable protector, hot shoe cover
Software Digital Camera Utility 5 -
Max Operating Temperature 40 °C 40 °C
Min Operating Temperature -10 °C -10 °C
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