• Medium format 1,441.0mm2
  • 51.4 megapixels
  • ISO 100 - 12,800
  • 35mm 861.6mm2
  • 36.4 megapixels
  • ISO 100 - 819,200
  • Detailed specifications
  • Fujifilm GFX 50S
  • Pentax K-1 II
Links
Prices: Compare Prices Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:   Pentax K-1
K-1 vs K-1 II
Successor: Fujifilm GFX 50S II  
General
Model Number: GFX 50S K-1 II
Alternate Model Number(s):   K-1 Mark II
Camera Format: Compact System Camera Pro SLR
Currently Manufactured: Yes Yes
Retail Price: $6499.95 $1799.95
Street Price: $4,895.00 $1,746.95
Date Available: 2017-02-28 2018-04-15
Tripod Mount: Yes Yes
Weight: 32.5 oz (920 g)
includes batteries
35.6 oz (1,010 g)
includes batteries
Size: 5.8 x 3.7 x 3.6 in.
(148 x 94 x 91 mm)
5.4 x 4.3 x 3.4 in.
(137 x 110 x 86 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer:    
Effective Megapixels: 51.4 36.4
Sensor Format: Medium format 35mm
Sensor size: 1441.02mm2 (43.80mm x 32.90mm) 861.6mm2 (35.90mm x 24.00mm)
Approximate Pixel Pitch: 5.31 microns 4.88 microns
Focal Length Multiplier: 0.8x 1.0x
Aspect Ratio: 4:3 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: None Optional
Self-Cleaning: Yes Yes
Sensor shift image stabilization: No Yes
On-Sensor Phase Detect: No No
DxO Sensor Score:    
DxO Color Depth Score (bits):    
DxO Dynamic Range Score (evs):    
DxO Maximum Effective ISO Score (iso):    
Image Capture
Image Resolution: 8256 x 6192 (51.1 MP, 4:3),
8256 x 5504 (45.4 MP, 3:2),
8256 x 4640 (38.3 MP, 16:9),
6192 x 6192 (38.3 MP, 1:1),
8256 x 3048 (25.2 MP, Other),
7744 x 6192 (48.0 MP, 5:4),
7232 x 6192 (44.8 MP, Other),
4000 x 3000 (12.0 MP, 4:3),
4000 x 2663 (10.7 MP, 3:2),
4000 x 2248 (9.0 MP, 16:9),
2992 x 2992 (9.0 MP, 1:1),
4000 x 1480 (5.9 MP, Other),
3744 x 3000 (11.2 MP, 5:4),
3504 x 3000 (10.5 MP, Other)
7360 x 4912 (36.2 MP, 3:2),
5760 x 3840 (22.1 MP, 3:2),
4224 x 2816 (11.9 MP, 3:2),
1920 x 1280 (2.5 MP, 3:2),
4800 x 3200 (15.4 MP, 3:2),
4224 x 2816 (11.9 MP, 3:2),
3456 x 2304 (8.0 MP, 3:2),
1920 x 1280 (2.5 MP, 3:2)
Image File Format: JPEG, 14-bit RAW (uncompressed or lossless compressed); RAW+JPEG; 24-bit TIFF (in-camera RAW conversion) JPEG (EXIF 2.30), 14-bit RAW (.PEF, .DNG), RAW+JPEG
Continuous-mode frames/second: 3.0 4.6
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (30p/​25p/​24p/​23.98p)
1280x720 (30p/​25p/​24p/​23.98p)
1920x1080 (60i/​50i/​30p/​25p/​24p)
1280x720 (60p/​50p)
Movie File Format: MOV (MPEG-4 AVC / H.264, Audio: Linear PCM 48KHz stereo sound) MPEG-4 AVC/H.264 (MOV), JPEG (AVI) for interval movie record
Composite Video Out: No No
NTSC/PAL Switchable Video: n/a n/a
Video Usable as Viewfinder: n/a n/a
HD Video Out: Yes Yes
HD Video Connection: HDMI HDMI
Lens & Optics
Lens Mount: FUJINON G Mount Pentax K (KA/KAF/KAF2/3)
Lens: n/a HD PENTAX-D FA 28-105mm F3.5-5.6 ED DC WR
Focal Length (35mm equivalent):   28 - 105mm
Focal Length (actual):   28 - 105mm
Zoom Ratio:   3.75x
Aperture Range:   f/3.5 - 22(W) to f/5.6 - 32(T)
Integrated ND Filter: No
Normal Focus Range:   50 cm to Infinity
19.7 in to Infinity
Macro Focus Range:    
Filter Thread: n/a 62.0mm
Thread Type: n/a n/a
Optical Image Stabilization: No No
Digital Zoom:
Digital Zoom Values:    
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Contrast Detection: 425 points; Single Point AF: 13x9 / 25x17 (Changeable Size of AF Frame Among 6 Types); Zone AF: 3x3 / 5x5 / 7x7 from 117 Areas on 13x9 Grid; Wide/Tracking AF: (Up to 9 Area); Single AF / Continuous AF / MF; Touch AF supported TTL Phase-detection AF: SAFOX 12, 33 point (25 cross type focus points in the center), Spot, Select, Expanded Area (S, M, L), Zone select, Auto (33 AF points)
Auto Focus Assist Light? No Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: EVF / LCD Optical / LCD
Viewfinder Type: Detachable EVF-GFX1 electronic viewfinder: 0.5-inch 3.69M-dot OLED, 100% coverage, 0.85x magnification (35mm eq.), 23mm eyepoint, -4 to +2 diopter adjustment, eye sensor; optional Tilt Adapter EVF-TL1 available SLR type; eye-level pentaprism, 100% coverage, 0.7x mag., Eyepoint: 20.6mm (from the view window) / 21.7mm (from the center of lens), -3.5 to +1.2 diopter, Natural-Bright-Matte III focusing screen
Focus Peaking: Yes Yes
EVF Resolution: 3,690,000 dots n/a
Viewfinder Magnification (35mm equivalent): 0.85x 0.70x
Viewfinder Magnification (nominal/claimed): 0.67x 0.70x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.2 3.2
Rear Display Resolution: 2,360,000 dots 1,036,800 dots (345,600 px)
Touchscreen: Yes No
Articulating Screen: Yes Yes
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom:   16.0x
Top Deck Display: Yes Yes
Exposure
Maximum ISO (native): 12800 819200
Minimum ISO (native): 100 100
ISO Settings: Auto (1/2/3), 100-12800, expandable to 50-102400 Auto, 100-819200 (1, 1/2 or 1/3 EV steps)
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Fluorescent light (Daylight), Fluorescent light (Warm White), Fluorescent light (Cool White), Incandescent light, Underwater, Custom, Color Temperature (K) Auto, Multi Auto WB, Daylight, Shade, Cloudy, Fluorescent Light (D: Daylight Color, N:Daylight White, W:Cool White, L:Warm White), Tungsten Light, Flash, CTE, Manual (up to 3 settings), Color Temperature (up to 3 settings)
Shutter Speed Range: 1/16000 - 3600 sec 1/8000 - 30 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 5.0EV in 0.3EV steps +/- 5.0EV in 0.3EV steps
Metering Modes: TTL 256-zone metering: Multi, Spot , Average, Center Weighted TTL open-aperture: Multi-segment with 86K-pixel RGB sensor, Center-weighted, Spot
Program Auto Exposure: Yes Yes
Aperture Priority: Yes Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes: Film Simulation modes (PROVIA / Standard, Velvia / Vivid, ASTIA / Soft, Classic Chrome, PRO Neg.Hi, PRO Neg.Std, Black&White, Black&White+Ye Filter, Black&White+R Filter, Black&White+Gfilter, Sepia, ACROS, ACROS+Ye Filter, ACROS+R Filter, ACROS+G Filter), Dynamic range setting: AUTO, 100%, 200%, 400% Sensitivity Priority, Shutter and Aperture Priority; Digital filters (capture): Extract Color, Replace Color, Toy Camera, Retro, High Contrast, Shading, Invert Color, Unicolor Bold, Bold Monochrome; HDR: Auto, HDR1, HDR2, HDR3; Pixel Shift Resolution (On/Off); Multi-Exposure, Interval Shooting, Interval Composite, Interval Movie Record, Star Stream
Self Timer: 10 or 2 seconds 2 or 12 seconds
Time Lapse (intervalometer): Yes Yes
High Resolution Composite: No 36.2 megapixels
Flash
Built-in Flash: No No
Flash Modes: TTL (Flash Auto / Standard / Slow Sync.), Manual, Off; Sync: 1st Curtain, 2nd Curtain; Auto FP (HSS) P-TTL; Modes available depends on external flash mounted
Flash Guide Number (ISO 100): n/a n/a
Flash Range Description: n/a n/a
Max Flash Sync: 1/125 1/200
Flash Exposure Compensation:   -2 to +1 EV in 0.5EV steps
External Flash Connection: Hot Shoe, PC Sync Terminal Hot Shoe, PC Sync socket
Built-In Wireless Flash Control: No No
Image Storage
Usable Memory Types: SD / SDHC / SDXC SD / SDHC / SDXC
UHS Support: UHS-II UHS-I
Other Memory:    
Dual Card Slots: Yes Yes
RAW Capture Support: Yes Yes
Uncompressed Format: 14-bit RAW (uncompressed or lossless compressed); RAW+JPEG; 24-bit TIFF (in-camera RAW conversion) 14-bit RAW (.PEF, .DNG), RAW+JPEG
Movie File Format: MOV (MPEG-4 AVC / H.264, Audio: Linear PCM 48KHz stereo sound) MPEG-4 AVC/H.264 (MOV), JPEG (AVI) for interval movie record
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: Yes Yes
NFC: No No
Bluetooth: No No
Built-In GPS: No Yes
Microphone Jack: Yes Yes
Headphone Jack: Yes Yes
External Connections: USB 3.0 Super Speed,WiFi USB 2.0 High Speed,WiFi
PictBridge Compliant: No No
DPOF Compliant: No Yes
Remote Control: Yes Yes
Remote Control Type: Via Wi-Fi or Remote Release RR-90/RR-100 Optional wired, IR wireless or Wi-Fi
Connections (extended): Micro HDMI (Type-D), Micro USB 3 .0, 3.5mm external mic jack, 3.5mm headphone jack, 2.5mm remote release jack, DC input (15v) Micro (Type D) HMDI, USB 2.0 Micro B, DC input, wired remote jack, 3.5mm external stereo mic jack, 3.5mm stereo headphone jack
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 1.00 0.40
Cycle time for RAW shooting in single shot mode (seconds per frame):    
Buffer size for RAW shooting in single shot mode (frames):    
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot): 1.00 0.38
Camera penalizes early shutter press? No Yes
JPEG shooting speed in burst mode (fps, max resolution): 3.0 4.6
Buffer size for JPEG shooting in burst mode (frames, max resolution): 40 77
RAW shooting speed in burst mode (fps): 3.0 4.6
Buffer size for RAW shooting in burst mode (frames): 21 17
RAW+JPEG shooting speed in burst mode (fps): 3.0 4.6
Buffer Size for RAW+JPEG shooting in burst mode (frames): 11 13
Shutter lag (full AF, wide/mid): 0.48 seconds 0.10 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):   0.328 seconds
Shutter Lag (manual focus): 0.270 seconds 0.087 seconds
Shutter lag (full AF, with flash):    
Shutter Lag (prefocused): 0.108 seconds 0.086 seconds
Shutter Lag (notes): Default EFCS used. Live View Prefocused shutter lag with e-shutter = 0.670s
Startup Time: 1.3 seconds 1.4 seconds
Play -> Record Time: 1.3 seconds 0.4 seconds
Flash cycle time, full power:    
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 400 shots  
Battery Life, Still (CIPA Rating OVF/EVF): 400 shots 670 shots
Battery Life, Video: 70 minutes  
Battery Form Factor: Proprietary Proprietary D-LI90
Usable Battery Types: NP-T125 Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary NP-T125 Lithium-ion rechargeable 1 x Proprietary D-LI90 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes Yes
Internal Charging Supported: No No
Software
Included Software: RAW FILE CONVERTER EX2.0 (powered by SILKYPIX) Software CD-ROM S-SW171 includes Digital Camera Utility 5
OS Compatibility: Mac and Windows  
Miscellaneous
Notes & Features: