• 35mm 861.6mm2
  • 36.4 megapixels
  • ISO 100 - 204,800
  • 35mm 861.6mm2
  • 42.4 megapixels
  • ISO 100 - 32,000
  • Detailed specifications
  • Pentax K-1
  • Sony Alpha ILCE-A7R III
Links
Prices:   Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:   Sony A7R II
A7R II vs A7R III
Successor: Pentax K-1 II
K-1 vs K-1 II
Sony A7R IV
A7R III vs A7R IV
General
Model Number: K-1 A7R III
Alternate Model Number(s):   ILCE-7RM3
Camera Format: Pro SLR Compact System Camera
Currently Manufactured: No Yes
Retail Price: $1799.95 $3200.00
Street Price:   $2,348.00
Date Available: 2016-04-15 2017-11-30
Tripod Mount: Yes Yes
Weight: 35.8 oz (1,015 g)
includes batteries
23.2 oz (657 g)
includes batteries
Size: 5.4 x 4.3 x 3.4 in.
(137 x 110 x 86 mm)
5.0 x 3.8 x 2.9 in.
(127 x 96 x 74 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer:   Sony
Effective Megapixels: 36.4 42.4
Sensor Format: 35mm 35mm
Sensor size: 861.6mm2 (35.90mm x 24.00mm) 861.6mm2 (35.90mm x 24.00mm)
Approximate Pixel Pitch: 4.88 microns 4.51 microns
Focal Length Multiplier: 1.0x 1.0x
Aspect Ratio: 3:2 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Optional None
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes Yes
On-Sensor Phase Detect: No Yes
DxO Sensor Score: 96 100
DxO Color Depth Score (bits): 25.4 26.0
DxO Dynamic Range Score (evs): 14.6 14.7
DxO Maximum Effective ISO Score (iso): 3,280 3,523
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)
7952 x 5304 (42.2 MP, 3:2),
5168 x 3448 (17.8 MP, 3:2),
3984 x 2656 (10.6 MP, 3:2),
7952 x 4472 (35.6 MP, 16:9),
5168 x 2912 (15.0 MP, Other),
3984 x 2240 (8.9 MP, 16:9),
5168 x 3448 (17.8 MP, 3:2),
3984 x 2656 (10.6 MP, 3:2),
2592 x 1728 (4.5 MP, 3:2),
5168 x 2912 (15.0 MP, Other),
3984 x 2240 (8.9 MP, 16:9),
2592 x 1456 (3.8 MP, 16:9)
Image File Format: JPEG (EXIF 2.30), 14-bit RAW (.PEF, .DNG), RAW+JPEG JPEG, RAW (14-bit ARW 2.3), RAW+JPEG
Continuous-mode frames/second: 4.6 9.9
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)
Movie File Format: MPEG-4 AVC/H.264 (MOV), JPEG (AVI) for interval movie record XAVC S / AVCHD 2.0 / MP4; Audio: LPCM / Dolby Digital (AC-3) / MPEG-4 AAC-LC, stereo
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: n/a n/a
Focal Length (35mm equivalent):    
Focal Length (actual):    
Zoom Ratio:    
Aperture Range:    
Integrated ND Filter: No 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: 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) Fast Hybrid 4D AF with 399 focal plane phase-detect points and 425 contrast-detect AF points; Wide (399 points (phase-detection AF), 425 points (contrast-detection AF)) / Zone / Center / Flexible Spot (S/M/L) /Expanded Flexible Spot/ Lock-on AF (Wide / Zone / Center / Flexible Spot (S/M/L)/Expanded Flexible Spot); Touch AF
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: 1.3 cm (0.5 type) 3,686K-dot Quad VGA color OLED, 100% coverage, 0.78x magnification, -4.0 to +3.0m-1 diopter, Approx. 23mm eyepoint from the eyepiece lens, 18.5mm from the eyepiece frame at -1m-1, eye sensor
Focus Peaking: Yes Yes
EVF Resolution: n/a 3,686,400 dots (1,228,800 pixels)
Viewfinder Magnification (35mm equivalent): 0.70x 0.78x
Viewfinder Magnification (nominal/claimed): 0.70x 0.78x
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) 1,440,000 dots (360,000 px)
Touchscreen: No Yes
Articulating Screen: Yes Yes
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom: 16.0x  
Top Deck Display: Yes No
Exposure
Maximum ISO (native): 204800 32000
Minimum ISO (native): 100 100
ISO Settings: Auto, 100-204800 (1, 1/2 or 1/3 EV steps) AUTO (ISO 100-12800; selectable lower limit and upper limit), ISO 100 - 32000, expandable to ISO 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, Cloudy, Incandescent, Fluorescent (4 settings), Flash, Custom, Color Temp./ Filter (2500-9900K with 15-step Magenta/Green compensation), Underwater
Shutter Speed Range: 1/8000 - 30 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 open-aperture: Multi-segment with 86K-pixel RGB sensor, Center-weighted, Spot 1200-zone Evaluative Multi-segment, Center-weighted, Spot
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 3 Custom Settings; HDR: Auto Exposure Difference, Exposure difference Level (1-6 EV at 1.0 EV step)
Self Timer: 2 or 12 seconds 2, 5, 10; 3/5 shots after 2/5/10 seconds
Time Lapse (intervalometer): Yes No
High Resolution Composite: 36.2 megapixels 42.4 megapixels
Flash
Built-in Flash: No No
Flash Modes: P-TTL; Modes available depends on external flash mounted Flash off, Auto flash, Fill-flash, Slow Sync., Rear Sync., Hi-speed Sync, Wireless; Red-eye reduction: On/Off
Flash Guide Number (ISO 100): n/a n/a
Flash Range Description: n/a n/a
Max Flash Sync: 1/200 1/250
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 Hot Shoe, Sync Terminal
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-II
Other Memory:   Slot1:SD UHS-II; 2:MS/SD UHS-I
Dual Card Slots: Yes Yes
RAW Capture Support: Yes Yes
Uncompressed Format: 14-bit RAW (.PEF, .DNG), RAW+JPEG RAW (14-bit ARW 2.3), RAW+JPEG
Movie File Format: MPEG-4 AVC/H.264 (MOV), JPEG (AVI) for interval movie record XAVC S / AVCHD 2.0 / MP4; Audio: LPCM / Dolby Digital (AC-3) / MPEG-4 AAC-LC, stereo
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 Yes
External Connections: USB 2.0 High Speed,WiFi USB 2.0 High Speed,USB 3.0 Super 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 via RM-VPR1, USB 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 USB-C (USB 3.1 Gen 1), Multi-Terminal Micro USB (with remote support), Type-D Micro HDMI, Microphone and Headphone jacks
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): <0.3 <0.3
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): <0.3 <0.3
Camera penalizes early shutter press? Yes No
JPEG shooting speed in burst mode (fps, max resolution): 4.6 9.9
Buffer size for JPEG shooting in burst mode (frames, max resolution): 74 82
RAW shooting speed in burst mode (fps): 4.6 9.2
Buffer size for RAW shooting in burst mode (frames): 17 30
RAW+JPEG shooting speed in burst mode (fps): 4.6 9.1
Buffer Size for RAW+JPEG shooting in burst mode (frames): 13 30
Shutter lag (full AF, wide/mid): 0.09 seconds 0.25 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR): 0.247 seconds  
Shutter Lag (manual focus): 0.087 seconds 0.105 seconds
Shutter lag (full AF, with flash):    
Shutter Lag (prefocused): 0.086 seconds 0.023 seconds
Shutter Lag (notes):   Silent Shooting Mode: Full AF lag = 0.368s, Manual focus = 0.258s, Prefocus = 0.123s
Startup Time: 1.2 seconds 1.7 seconds
Play -> Record Time: 0.3 seconds 1.4 seconds
Flash cycle time, full power:    
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):   650 shots
Battery Life, Still (CIPA Rating OVF/EVF): 760 shots 530 shots
Battery Life, Video:   100 minutes
Battery Form Factor: Proprietary D-LI90 Proprietary
Usable Battery Types: Lithium-ion rechargeable NP-FZ100 Lithium-ion rechargeable
Batteries Included: 1 x Proprietary D-LI90 Lithium-ion rechargeable 1 x Proprietary NP-FZ100 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes Yes
Internal Charging Supported: No Yes
Software
Included Software: Software CD-ROM S-SW162 includes Digital Camera Utility 5 Capture One Express (for Sony) free download
OS Compatibility:    
Miscellaneous
Notes & Features: