• APS-C 366.6mm2
  • 24.4 megapixels
  • ISO 100 - 51,200
  • Medium format 1,441.0mm2
  • 51.4 megapixels
  • ISO 100 - 12,800
  • Detailed specifications
  • Pentax K-3 II
  • Fujifilm GFX 50S
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Prices: Compare Prices Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor: Pentax K-3
K-3 vs K-3 II 		 
Successor: Pentax K-3 III
K-3 II vs K-3 III 		Fujifilm GFX 50S II
General
Model Number: K-3 II GFX 50S
Alternate Model Number(s):    
Camera Format: Pro SLR Compact System Camera
Currently Manufactured: Yes Yes
Retail Price: $850.00 $6499.95
Street Price: $829.99 $5,197.00
Date Available: 2015-05-15 2017-02-28
Tripod Mount: Yes Yes
Weight: 27.7 oz (785 g)
includes batteries 		32.5 oz (920 g)
includes batteries
Size: 5.2 x 4.0 x 3.1 in.
(132 x 102 x 77 mm) 		5.8 x 3.7 x 3.6 in.
(148 x 94 x 91 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer:    
Effective Megapixels: 24.4 51.4
Sensor Format: APS-C Medium format
Sensor size: 366.6mm2 (23.50mm x 15.60mm) 1441.02mm2 (43.80mm x 32.90mm)
Approximate Pixel Pitch: 3.91 microns 5.31 microns
Focal Length Multiplier: 1.5x 0.8x
Aspect Ratio: 3:2 4:3
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Optional None
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes No
On-Sensor Phase Detect: No No
DxO Sensor Score: 80  
DxO Color Depth Score (bits): 23.6  
DxO Dynamic Range Score (evs): 13.6  
DxO Maximum Effective ISO Score (iso): 1,106  
Image Capture
Image Resolution: 6016 x 4000 (24.1 MP, 3:2),
4608 x 3072 (14.2 MP, 3:2),
3072 x 2048 (6.3 MP, 3:2),
1920 x 1280 (2.5 MP, 3:2) 		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)
Image File Format: JPEG (EXIF 2.30), 14-bit RAW (.PEF, .DNG), RAW+JPEG JPEG, 14-bit RAW (uncompressed or lossless compressed); RAW+JPEG; 24-bit TIFF (in-camera RAW conversion)
Continuous-mode frames/second: 8.1 3.0
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (60i/​50i/​30p/​25p/​24p)
1280x720 (60p/​50p/​30p/​25p/​24p) 		1920x1080 (30p/​25p/​24p/​23.98p)
1280x720 (30p/​25p/​24p/​23.98p)
Movie File Format: MPEG-4 AVC/H.264 (MOV), Motion JPEG (AVI) for interval movie record MOV (MPEG-4 AVC / H.264, Audio: Linear PCM 48KHz stereo sound)
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: Pentax K (KA/KAF/KAF2/3) FUJINON G Mount
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: SAFOX 11 TTL phase-matching - 27 point (25 cross type focus points in the center) 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
Auto Focus Assist Light? Yes No
Manual Focus: Yes Yes
Viewfinder
Viewfinder: Optical / LCD EVF / LCD
Viewfinder Type: SLR type; eye-level pentaprism, ~100% coverage, 0.95x mag., TBDmm eyepoint, -2.5 to +1.5 diopter 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
Focus Peaking: Yes Yes
EVF Resolution: n/a 3,690,000 dots
Viewfinder Magnification (35mm equivalent): 0.63x 0.85x
Viewfinder Magnification (nominal/claimed): 0.95x 0.67x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.2 3.2
Rear Display Resolution: 1,036,800 dots (345,600 px) 2,360,000 dots
Touchscreen: No Yes
Articulating Screen: No Yes
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom: 16.0x  
Top Deck Display: Yes Yes
Exposure
Maximum ISO (native): 51200 12800
Minimum ISO (native): 100 100
ISO Settings: Auto, 100-51200 (1, 1/2 or 1/3 EV steps) Auto (1/2/3), 100-12800, expandable to 50-102400
Auto ISO Mode: Yes Yes
White Balance Settings: 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) Auto, Daylight, Shade, Fluorescent light (Daylight), Fluorescent light (Warm White), Fluorescent light (Cool White), Incandescent light, Underwater, Custom, Color Temperature (K)
Shutter Speed Range: 1/8000 - 30 sec 1/16000 - 3600 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 5.0EV in 0.3EV steps +/- 5.0EV in 0.3EV steps
Metering Modes: TTL open-aperture: Multi-segment with 86K-pixel RGB sensor, Center-weighted, Spot TTL 256-zone metering: Multi, Spot , Average, Center Weighted
Program Auto Exposure: Yes Yes
Aperture Priority: Yes Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes: Sensitivity Priority, Shutter and Aperture Priority; Digital filters (capture): Extract Color, Toy Camera, Retro, High Contrast, Shading, Invert Color, Unicolor Bold, Bold Monochrome; HDR: Auto, HDR1, HDR2, HDR3; Pixel Shift Resolution (On/Off) 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%
Self Timer: 2 or 12 seconds 10 or 2 seconds
Time Lapse (intervalometer): Yes Yes
High Resolution Composite: 24.0 megapixels No
Flash
Built-in Flash: No No
Flash Modes: P-TTL; Modes available depends on external flash mounted TTL (Flash Auto / Standard / Slow Sync.), Manual, Off; Sync: 1st Curtain, 2nd Curtain; Auto FP (HSS)
Flash Guide Number (ISO 100): n/a n/a
Flash Range Description: n/a n/a
Max Flash Sync: 1/180 1/125
Flash Exposure Compensation: -2 to +1 EV in 0.5EV steps  
External Flash Connection: Hot Shoe, PC Sync socket Hot Shoe, PC Sync Terminal
Built-In Wireless Flash Control:   No
Image Storage
Usable Memory Types: SD / SDHC / SDXC SD / SDHC / SDXC
UHS Support: UHS-I UHS-II
Other Memory:    
Dual Card Slots: Yes Yes
RAW Capture Support: Yes Yes
Uncompressed Format: 14-bit RAW (.PEF, .DNG), RAW+JPEG 14-bit RAW (uncompressed or lossless compressed); RAW+JPEG; 24-bit TIFF (in-camera RAW conversion)
Movie File Format: MPEG-4 AVC/H.264 (MOV), Motion JPEG (AVI) for interval movie record MOV (MPEG-4 AVC / H.264, Audio: Linear PCM 48KHz stereo sound)
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No Yes
NFC: No No
Bluetooth: No No
Built-In GPS: Yes No
Microphone Jack: Yes Yes
Headphone Jack: Yes Yes
External Connections: USB 3.0 Super Speed USB 3.0 Super Speed,WiFi
PictBridge Compliant: No No
DPOF Compliant: Yes No
Remote Control: Yes Yes
Remote Control Type: Optional Wired or IR Via Wi-Fi or Remote Release RR-90/RR-100
Connections (extended): Micro (Type D) HMDI, USB 3.0 Micro B, DC input, wired remote jack, 3.5mm external stereo mic jack, 3.5mm stereo headphone jack 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)
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): <0.3 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): 0.60 1.00
Camera penalizes early shutter press? No No
JPEG shooting speed in burst mode (fps, max resolution): 8.1 3.0
Buffer size for JPEG shooting in burst mode (frames, max resolution): 60 40
RAW shooting speed in burst mode (fps): 8.2 3.0
Buffer size for RAW shooting in burst mode (frames): 22 21
RAW+JPEG shooting speed in burst mode (fps): 8.2 3.0
Buffer Size for RAW+JPEG shooting in burst mode (frames): 23 11
Shutter lag (full AF, wide/mid): 0.14 seconds 0.48 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR): 0.274 seconds  
Shutter Lag (manual focus): 0.094 seconds 0.270 seconds
Shutter lag (full AF, with flash):    
Shutter Lag (prefocused): 0.090 seconds 0.108 seconds
Shutter Lag (notes):   Default EFCS used.
Startup Time: 1.2 seconds 1.3 seconds
Play -> Record Time: 0.5 seconds 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): 720 shots 400 shots
Battery Life, Video:   70 minutes
Battery Form Factor: Proprietary D-LI90 Proprietary
Usable Battery Types: Lithium-ion rechargeable NP-T125 Lithium-ion rechargeable
Batteries Included: 1 x Proprietary D-LI90 Lithium-ion rechargeable 1 x Proprietary NP-T125 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: Software CD-ROM includes Digital Camera Utility 5 RAW FILE CONVERTER EX2.0 (powered by SILKYPIX)
OS Compatibility:   Mac and Windows
Miscellaneous
Notes & Features: Improved sensor-shift shake reduction (up to 4.5 stops), new Pixel Shift Resolution mode (4-shot composite provides full color information at each pixel and reduces noise), built-in GPS with ASTROTRACER and electronic compass.