• APS-C 366.6mm2
  • 24.3 megapixels
  • ISO 100 - 25,600
  • 35mm 861.6mm2
  • 36.4 megapixels
  • ISO 100 - 819,200
  • Detailed specifications
  • Sony Alpha ILCA-A77 II
  • Pentax K-1 II
Links
Prices: Compare Prices Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor: Sony A77
A77 vs A77 II
Pentax K-1
K-1 vs K-1 II
Successor:    
General
Model Number: A77 II K-1 II
Alternate Model Number(s): ILCA-77M2 K-1 Mark II
Camera Format: SLR Pro SLR
Currently Manufactured: Yes Yes
Retail Price: $1799.99 $1799.95
Street Price: $1,198.00 $1,796.95
Date Available: 2014-06-15 2018-04-15
Tripod Mount: Yes Yes
Weight: 47.7 oz (1,351 g)
includes batteries, kit lens
35.6 oz (1,010 g)
includes batteries
Size: 5.6 x 4.1 x 3.2 in.
(143 x 104 x 81 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: Sony  
Effective Megapixels: 24.3 36.4
Sensor Format: APS-C 35mm
Sensor size: 366.6mm2 (23.50mm x 15.60mm) 861.6mm2 (35.90mm x 24.00mm)
Approximate Pixel Pitch: 3.92 microns 4.88 microns
Focal Length Multiplier: 1.5x 1.0x
Aspect Ratio: 3:2 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Fixed Optional
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes 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: 6000 x 4000 (24.0 MP, 3:2),
6000 x 3376 (20.3 MP, 16:9),
4240 x 2832 (12.0 MP, 3:2),
4240 x 2400 (10.2 MP, Other),
3008 x 2000 (6.0 MP, 3:2),
3008 x 1688 (5.1 MP, 16:9),
12416 x 1856 (23.0 MP, Other),
8192 x 1856 (15.2 MP, Other),
2160 x 5536 (12.0 MP, Other),
2160 x 3872 (8.4 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 (EXIF 2.3), 12-bit RAW (ARW 2.3), RAW+JPEG JPEG (EXIF 2.30), 14-bit RAW (.PEF, .DNG), RAW+JPEG
Continuous-mode frames/second: 11.5 4.6
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (60p/​28Mbps/​PS or 60i/​24Mbps/​FX or 60i/​17Mbps/​FH or 24p/​24Mbps/​FX or 24p/​17Mbps/​FH)
1440x1080 (30p/​12Mbps)
640x480 (30p/​3Mbps)
1920x1080 (60i/​50i/​30p/​25p/​24p)
1280x720 (60p/​50p)
Movie File Format: AVCHD 2.0 / MP4; Audio: Dolby Digital (AC-3) / MPEG-4 AAC-LC 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: Sony Alpha (Minolta A) Pentax K (KA/KAF/KAF2/3)
Lens: Sony 16-50mm f/2.8 DT SSM (SAL1650) HD PENTAX-D FA 28-105mm F3.5-5.6 ED DC WR
Focal Length (35mm equivalent): 24 - 75mm 28 - 105mm
Focal Length (actual): 16 - 50mm 28 - 105mm
Zoom Ratio: 3.13x 3.75x
Aperture Range: f/2.8 - f/22 (W/T) f/3.5 - 22(W) to f/5.6 - 32(T)
Integrated ND Filter: No No
Normal Focus Range: 30 cm to Infinity
11.8 in to Infinity
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: Yes
Digital Zoom Values: 1.4x / 2x Smart Zoom, 2x Clear Image Zoom  
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Phase Detection: 79 points, 15 cross-type, f/2.8 center sensor 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? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: EVF / LCD Optical / LCD
Viewfinder Type: EVF type; 1.3cm (0.5") 2,359K-dot OLED, 100% coverage, 1.09x mag., 22mm eyepoint, -4 to +3 diopter 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: 2,359,296 dots (786,432 pixels) n/a
Viewfinder Magnification (35mm equivalent): 0.73x 0.70x
Viewfinder Magnification (nominal/claimed): 1.09x 0.70x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 3.2
Rear Display Resolution: 1,229,760 dots (307,200 px) 1,036,800 dots (345,600 px)
Touchscreen: No No
Articulating Screen: Yes Yes
Tilt Swivel Screen: Yes No
Selfie Screen: Yes No
Max Playback Zoom: 13.6x 16.0x
Top Deck Display: Yes Yes
Exposure
Maximum ISO (native): 25600 819200
Minimum ISO (native): 100 100
ISO Settings: Auto; 100-25600; 50/64/80 extended; Auto/100-51200 in Mutli-frame NR Auto, 100-819200 (1, 1/2 or 1/3 EV steps)
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Cloudy, Incandescent, Fluorescent (Warm white/Cool white/Day white/Daylight), Flash, Color Temp. 2500 to 9900K, Color Filter G7 to M7 (15-step), Custom 1/2/3 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: 1/8000 - 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: 1200-zone Evaluative, Center-weighted, Spot 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: Scene Modes: Portrait, SportsAction, Macro, Landscape, Sunset, Night Scene, Hand-held Twilight (6 shot layering), Night Portrait; Picture Effects: Toy Camera (Normal/Cool/Warm/ Green/Magenta), Pop Color, Posterization (color/B/W), Retro Photo, Soft High-key, Partial color (R/G/B/Y), High Contrast Monochrome, Soft Focus (Hi/Mid/Lo), HDR Painting (Hi/Mid/Lo), Rich Tone Monochrome, Miniature (7Setting), Watercolor, Illustration (Hi/Mid/Lo) 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: 2, 10; 3 or 5 frames after 10 seconds 2 or 12 seconds
Time Lapse (intervalometer):   Yes
High Resolution Composite: No 36.2 megapixels
Flash
Built-in Flash: Yes No
Flash Modes: Auto, Off, Fill-flash, Rear sync, Wireless, High-Speed sync (with external flash), Slow sync, Red-eye reduction: On/Off P-TTL; Modes available depends on external flash mounted
Flash Guide Number (ISO 100): 12.0 m / 39.4 ft. n/a
Flash Range Description: GN=12(m) at ISO 100; Range is lens aperture dependent n/a
Max Flash Sync: 1/250 1/200
Flash Exposure Compensation: +/- 3.0 EV in 0.3EV steps -2 to +1 EV in 0.5EV steps
External Flash Connection: Multi Interface Hot shoe, Sync terminal Hot Shoe, PC Sync socket
Built-In Wireless Flash Control: Full TTL exposure No
Image Storage
Usable Memory Types: MS Duo / MS PRO Duo / SD / SDHC / SDXC SD / SDHC / SDXC
UHS Support: UHS-I UHS-I
Other Memory:    
Dual Card Slots: No Yes
RAW Capture Support: Yes Yes
Uncompressed Format: 12-bit RAW (ARW 2.3), RAW+JPEG 14-bit RAW (.PEF, .DNG), RAW+JPEG
Movie File Format: AVCHD 2.0 / MP4; Audio: Dolby Digital (AC-3) / MPEG-4 AAC-LC 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: Yes No
Bluetooth: No No
Built-In GPS: No Yes
Microphone Jack: Yes Yes
Headphone Jack: No Yes
External Connections: USB 2.0 High Speed,WiFi USB 2.0 High Speed,WiFi
PictBridge Compliant: Yes No
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional wireless, wired or via Wi-Fi Optional wired, IR wireless or Wi-Fi
Connections (extended): Type-D Micro HDMI; Wired Remote Terminal, 3.5mm External Stereo Micophone Jack, DC Input 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): 0.36 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): 0.37 0.38
Camera penalizes early shutter press? No Yes
JPEG shooting speed in burst mode (fps, max resolution): 11.5 4.6
Buffer size for JPEG shooting in burst mode (frames, max resolution): 26 77
RAW shooting speed in burst mode (fps): 12.0 4.6
Buffer size for RAW shooting in burst mode (frames): 28 17
RAW+JPEG shooting speed in burst mode (fps): 12.0 4.6
Buffer Size for RAW+JPEG shooting in burst mode (frames): 24 13
Shutter lag (full AF, wide/mid): 0.09 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): 0.095 seconds 0.087 seconds
Shutter lag (full AF, with flash): 0.21 seconds  
Shutter Lag (prefocused): 0.051 seconds 0.086 seconds
Shutter Lag (notes):   Live View Prefocused shutter lag with e-shutter = 0.670s
Startup Time: 0.8 seconds 1.4 seconds
Play -> Record Time: 0.9 seconds 0.4 seconds
Flash cycle time, full power: 3.1 seconds  
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 480 shots  
Battery Life, Still (CIPA Rating OVF/EVF): 410 shots 670 shots
Battery Life, Video:    
Battery Form Factor: Proprietary NP-FM500H Proprietary D-LI90
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary NP-FM500H 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: Software CD-ROM (includes Picture Motion Browser, Image Data Converter 4) Software CD-ROM S-SW171 includes Digital Camera Utility 5
OS Compatibility: Windows, Mac OS X  
Miscellaneous
Notes & Features: New 79-point phase detection AF system with 15 cross-type sensors, BIONZ X processor, 12fps burst mode with continuous AF, Full HD 60p/24p movies using AVCHD 2.0, clean HDMI output, built-in Wi-Fi with NFC, optional VG-C77AM grip.