• 35mm 861.6mm2
  • 36.4 megapixels
  • ISO 100 - 819,200
  • APS-C 366.6mm2
  • 24.2 megapixels
  • ISO 100 - 32,000
  • Detailed specifications
  • Pentax K-1 II
  • Sony Alpha ILCE-A6400
Links
Prices: Compare Prices Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor: Pentax K-1
K-1 vs K-1 II
Sony A6300
A6300 vs A6400
Successor:    
General
Model Number: K-1 II A6400
Alternate Model Number(s): K-1 Mark II ILCE-6400
Camera Format: Pro SLR Compact System Camera
Currently Manufactured: Yes Yes
Retail Price: $1999.95 $999.99
Street Price: $1,796.95 $898.00
Date Available: 2018-04-15 2019-02-15
Tripod Mount: Yes Yes
Weight: 35.6 oz (1,010 g)
includes batteries
18.3 oz (519 g)
includes batteries, kit lens
Size: 5.4 x 4.3 x 3.4 in.
(137 x 110 x 86 mm)
4.7 x 2.6 x 2.4 in.
(120 x 67 x 60 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer:   Sony
Effective Megapixels: 36.4 24.2
Sensor Format: 35mm APS-C
Sensor size: 861.6mm2 (35.90mm x 24.00mm) 366.6mm2 (23.50mm x 15.60mm)
Approximate Pixel Pitch: 4.88 microns 3.92 microns
Focal Length Multiplier: 1.0x 1.5x
Aspect Ratio: 3:2 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Optional Fixed
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes No
On-Sensor Phase Detect: No Yes
DxO Sensor Score:    
DxO Color Depth Score (bits):    
DxO Dynamic Range Score (evs):    
DxO Maximum Effective ISO Score (iso):    
Image Capture
Image Resolution: 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)
6000 x 4000 (24.0 MP, 3:2),
4240 x 2832 (12.0 MP, 3:2),
3008 x 2000 (6.0 MP, 3:2),
6000 x 3376 (20.3 MP, 16:9),
4240 x 2400 (10.2 MP, Other),
3008 x 1688 (5.1 MP, 16:9),
4000 x 4000 (16.0 MP, 1:1),
2832 x 2832 (8.0 MP, 1:1),
2000 x 2000 (4.0 MP, 1:1),
12416 x 1586 (19.7 MP, Other),
8192 x 1856 (15.2 MP, Other),
5536 x 2160 (12.0 MP, Other),
3872 x 2160 (8.4 MP, Other)
Image File Format: JPEG (EXIF 2.30), 14-bit RAW (.PEF, .DNG), RAW+JPEG JPEG (EXIF 2.31), RAW (14-bit compressed ARW 2.3), RAW+JPEG
Continuous-mode frames/second: 4.6 11.0
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (60i/50i/30p/25p/24p)
1280x720 (60p/50p)
3840x2160 (30p/25p/24p)
1920x1080 (120p/100p/60p/60i/50p/50i/30p/25p/24p)
1920x1080 (15p/12p/8p/6p/4p/3p/2p/1/p)
Movie File Format: MPEG-4 AVC/H.264 (MOV), JPEG (AVI) for interval movie record XAVC S / AVCHD format Ver. 2.0 compliant; Audio: LPCM, 2ch / Dolby Digital (AC-3), 2ch, Dolby Digital Stereo Creator
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) Sony E
Lens: HD PENTAX-D FA 28-105mm F3.5-5.6 ED DC WR Sony SELP1650 PZ 16-50mm f/3.5-5.6 OSS; 9 elements in 8 groups, 4 aspheric surfaces
Focal Length (35mm equivalent): 28 - 105mm 24 - 75mm
Focal Length (actual): 28 - 105mm 16 - 50mm
Zoom Ratio: 3.75x 3.13x
Aperture Range: f/3.5 - 22(W) to f/5.6 - 32(T) f/3.5 - f/22 (W) / f/5.6 - f/36 (T); 7-blade circular aperture
Integrated ND Filter: No No
Normal Focus Range: 50 cm to Infinity
19.7 in to Infinity
25 cm to Infinity
9.8 in to Infinity
Macro Focus Range:    
Filter Thread: 62.0mm 40.5mm
Thread Type: n/a n/a
Optical Image Stabilization: No Yes
Digital Zoom: Yes
Digital Zoom Values:   Up to 4x; up to 2x Clear Image Digital Zoom
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: 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) Hybrid Contrast/Phase Detection: Wide (425 points (phase-detection AF), 425 points (contrast-detection AF)) / Zone / Center / Flexible Spot (S/M/L) / Expanded Flexible Spot / Tracking ( Wide / Zone / Center / Flexible Spot (S/M/L) / Expanded Flexible Spot); Enhanced real-time Eye AF and object tracking
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: Optical / LCD EVF / LCD
Viewfinder Type: 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 EVF type; 1.0cm (0.39-inch) 2.3M-dot XGA OLED, 100% coverage, 1.07x mag. (0.70x 35mm eq.), 23mm eyepoint, -4 to +3 diopter
Focus Peaking: Yes Yes
EVF Resolution: n/a 2,359,296 dots
Viewfinder Magnification (35mm equivalent): 0.70x 0.70x
Viewfinder Magnification (nominal/claimed): 0.70x 1.07x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.2 3.0
Rear Display Resolution: 1,036,800 dots (345,600 px) 921,600 dots (307,200 px)
Touchscreen: No Yes
Articulating Screen: Yes Yes
Tilt Swivel Screen: No No
Selfie Screen: No Yes
Max Playback Zoom: 16.0x 16.7x
Top Deck Display: Yes No
Exposure
Maximum ISO (native): 819200 32000
Minimum ISO (native): 100 100
ISO Settings: Auto, 100-819200 (1, 1/2 or 1/3 EV steps) Auto, 100-32000; expandable to 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 WB, Daylight, Shade, Cloudy, Incandescent, Fluorescent (Warm white/Cool white/Day white/Daylight), Flash, C. Temp 2500 to 9900K, C Filter G7 to M7 (15-step), Custom, Underwater; AWB micro adjustment
Shutter Speed Range: 1/8000 - 30 sec 1/4000 - 30 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 1200-zone Evaluative, Center-weighted, Spot, Spot Standard/Large, Entire-screen Average, Highlight
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, 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 Portrait, Landscape, Macro, Sports Action, Sunset, Night Portrait, Night Scene, Hand-held Twilight, Anti Motion Blur, HDR, Sweep Panorama, Movie/Slow & Quick Motion
Self Timer: 2 or 12 seconds 2 , 10, 10 (3 or 5 frames) seconds
Time Lapse (intervalometer): Yes Yes
High Resolution Composite: 36.2 megapixels No
Flash
Built-in Flash: No Yes
Flash Modes: P-TTL; Modes available depends on external flash mounted Auto, Off, Fill-flash, Rear sync, Slow sync, Red-eye reduction: On/Off
Flash Guide Number (ISO 100): n/a 6.0 m / 19.7 ft.
Flash Range Description: n/a Lens dependent
Max Flash Sync: 1/200 1/160
Flash Exposure Compensation: -2 to +1 EV in 0.5EV steps +/- 3.0 EV in 0.3EV steps
External Flash Connection: Hot Shoe, PC Sync socket Multi Interface Shoe
Built-In Wireless Flash Control: No No
Image Storage
Usable Memory Types: SD / SDHC / SDXC MS PRO Duo / SD / SDHC / SDXC
UHS Support: UHS-I UHS-I
Other Memory:    
Dual Card Slots: Yes No
RAW Capture Support: Yes Yes
Uncompressed Format: 14-bit RAW (.PEF, .DNG), RAW+JPEG RAW (14-bit compressed ARW 2.3), RAW+JPEG
Movie File Format: MPEG-4 AVC/H.264 (MOV), JPEG (AVI) for interval movie record XAVC S / AVCHD format Ver. 2.0 compliant; Audio: LPCM, 2ch / Dolby Digital (AC-3), 2ch, Dolby Digital Stereo Creator
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: Yes Yes
NFC: No Yes
Bluetooth: No Yes
Built-In GPS: Yes No
Microphone Jack: Yes Yes
Headphone Jack: Yes No
External Connections: USB 2.0 High Speed,WiFi USB 2.0 High Speed,Bluetooth,WiFi
PictBridge Compliant: No No
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional wired, IR wireless or Wi-Fi Optional wired or Wi-FI
Connections (extended): 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 Micro (Type-D) HDMI, Multi Interface Shoe, Multi Micro USB
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 0.40 0.41
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): 0.38 0.42
Camera penalizes early shutter press? Yes No
JPEG shooting speed in burst mode (fps, max resolution): 4.6 11.0
Buffer size for JPEG shooting in burst mode (frames, max resolution): 77 87
RAW shooting speed in burst mode (fps): 4.6 11.1
Buffer size for RAW shooting in burst mode (frames): 17 42
RAW+JPEG shooting speed in burst mode (fps): 4.6 11.1
Buffer Size for RAW+JPEG shooting in burst mode (frames): 13 42
Shutter lag (full AF, wide/mid): 0.10 seconds 0.12 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): 0.087 seconds 0.111 seconds
Shutter lag (full AF, with flash):   0.17 seconds
Shutter Lag (prefocused): 0.086 seconds 0.021 seconds
Shutter Lag (notes): Live View Prefocused shutter lag with e-shutter = 0.670s  
Startup Time: 1.4 seconds 1.8 seconds
Play -> Record Time: 0.4 seconds 1.0 seconds
Flash cycle time, full power: 0.0 seconds 2.3 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):   410 shots
Battery Life, Still (CIPA Rating OVF/EVF): 670 shots 360 shots
Battery Life, Video:   125 minutes
Battery Form Factor: Proprietary D-LI90 Proprietary NP-FW50
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary D-LI90 Lithium-ion rechargeable 1 x Proprietary NP-FW50 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes No
Internal Charging Supported: No Yes
Software
Included Software: Software CD-ROM includes Digital Camera Utility 5 Free downloads of "Remote", "Viewer" and "Edit" apps
OS Compatibility:    
Miscellaneous
Notes & Features: