• Medium format 1,441.0mm2
  • 51.4 megapixels
  • ISO 100 - 12,800
  • APS-C 361.2mm2
  • 25.7 megapixels
  • ISO 100 - 1,600,000
  • Detailed specifications
  • Fujifilm GFX 50S
  • Pentax K-3 III
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Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:   Pentax K-3 II
K-3 II vs K-3 III
Successor: Fujifilm GFX 50S II  
General
Model Number: GFX 50S K-3 III
Alternate Model Number(s):   K-3 Mark III
Camera Format: Compact System Camera Pro SLR
Currently Manufactured: Yes Yes
Retail Price: $6499.95 $1999.95
Street Price: $5,197.00 $1,846.95
Date Available: 2017-02-28 2021-04-06
Tripod Mount: Yes Yes
Weight: 32.5 oz (920 g)
includes batteries
28.9 oz (820 g)
includes batteries
Size: 5.8 x 3.7 x 3.6 in.
(148 x 94 x 91 mm)
5.3 x 4.1 x 2.9 in.
(135 x 104 x 74 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer:    
Effective Megapixels: 51.4 25.7
Sensor Format: Medium format APS-C
Sensor size: 1441.02mm2 (43.80mm x 32.90mm) 361.15mm2 (23.30mm x 15.50mm)
Approximate Pixel Pitch: 5.31 microns 3.76 microns
Focal Length Multiplier: 0.8x 1.5x
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)
6192 x 4128 (25.6 MP, 3:2),
4752 x 3168 (15.1 MP, 3:2),
3648 x 2432 (8.9 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 12.0
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (30p/​25p/​24p/​23.98p)
1280x720 (30p/​25p/​24p/​23.98p)
3840x2160 (30p/​24p)
1920x1080 (60p/​50p/​30p/​25p/​24p)
Movie File Format: MOV (MPEG-4 AVC / H.264, Audio: Linear PCM 48KHz stereo sound) MPEG-4 AVC/H.264 (MOV)
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/KAF2/3/4)
Lens: n/a n/a
Focal Length (35mm equivalent):    
Focal Length (actual):    
Zoom Ratio:    
Aperture Range:    
Integrated ND Filter: No
Normal Focus Range:    
Macro Focus Range:    
Filter Thread: n/a n/a
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 SAFOX 13 TTL phase-matching - 101 point (25 cross type focus points in the center)
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, 1.05x mag., 20.5mm eyepoint, -4.0 to +1.0 diopter
Focus Peaking: Yes Yes
EVF Resolution: 3,690,000 dots n/a
Viewfinder Magnification (35mm equivalent): 0.85x 1.05x
Viewfinder Magnification (nominal/claimed): 0.67x  
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 1,620,000 dots (540,000 px)
Touchscreen: Yes Yes
Articulating Screen: Yes No
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom:   16.0x
Top Deck Display: Yes Yes
Exposure
Maximum ISO (native): 12800 1600000
Minimum ISO (native): 100 100
ISO Settings: Auto (1/2/3), 100-12800, expandable to 50-102400 Auto, 100-1600000 (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), Copying the white balance setting of a captured image
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 307K-pixel RGBIr sensor, Center-weighted, Spot, Highlight-weighted
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% Scene Analyze Auto, Program, Sensitivity Priority, Shutter Priority, Aperture Priority, Shutter & Aperture Priority; Digital filters (capture): Extract Color, Replace Color, Toy Camera, Retro, High Contrast, Shading, Invert Color, Unicolor Bold, Tone Expansion, Bold Monochrome, Grainy Monochrome; HDR: Auto, HDR1, HDR2, HDR3, Advanced HDR, Exposure bracket value adjustable, Automatic composition correction function; Pixel Shift Resolution (On/Off)
Self Timer: 10 or 2 seconds 2 or 12 seconds
Time Lapse (intervalometer): Yes  
High Resolution Composite: No 24.0 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-II
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)
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: Yes Yes
NFC: No No
Bluetooth: No Yes
Built-In GPS: No No
Microphone Jack: Yes Yes
Headphone Jack: Yes Yes
External Connections: USB 3.0 Super Speed,WiFi USB 3.0 Super Speed,Bluetooth,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 or IR
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) USB 3.2 Gen1 (Type-C), Micro B,Micro (Type D) HMDI, External cable switch terminal (2.5mm), X-sync socket, 3.5mm stereo mic input, 3.5mm headphone jack
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 1.00  
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  
Camera penalizes early shutter press? No
JPEG shooting speed in burst mode (fps, max resolution): 3.0 12.0
Buffer size for JPEG shooting in burst mode (frames, max resolution): 40 30
RAW shooting speed in burst mode (fps): 3.0  
Buffer size for RAW shooting in burst mode (frames): 21  
RAW+JPEG shooting speed in burst mode (fps): 3.0  
Buffer Size for RAW+JPEG shooting in burst mode (frames): 11  
Shutter lag (full AF, wide/mid): 0.48 seconds  
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus): 0.270 seconds  
Shutter lag (full AF, with flash):    
Shutter Lag (prefocused): 0.108 seconds  
Shutter Lag (notes): Default EFCS used.  
Startup Time: 1.3 seconds  
Play -> Record Time: 1.3 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 800 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 includes Digital Camera Utility 5
OS Compatibility: Mac and Windows  
Miscellaneous
Notes & Features: