• 35mm 847.3mm2
  • 12.2 megapixels
  • ISO 100 - 102,400
  • 35mm 858.0mm2
  • 45.7 megapixels
  • ISO 64 - 25,600
  • Detailed specifications
  • Sony Alpha ILCE-A7S II
  • Nikon D850
Links
Prices: Compare Prices Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor: Sony A7S III
A7S III vs A7S II
Nikon D810
D810 vs D850
Successor:    
General
Model Number: A7S II D850
Alternate Model Number(s): ILCE-7SM2  
Camera Format: Compact System Camera Pro SLR
Currently Manufactured: Yes Yes
Retail Price: $2999.99 $3299.95
Street Price: $2,398.00 $2,463.62
Date Available: 2015-10-15 2017-09-15
Tripod Mount: Yes Yes
Weight: 22.1 oz (627 g)
includes batteries
32.3 oz (915 g)
Size: 5.0 x 3.8 x 2.4 in.
(127 x 96 x 60 mm)
5.7 x 4.9 x 3.1 in.
(146 x 124 x 79 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer: Sony Sony
Effective Megapixels: 12.2 45.7
Sensor Format: 35mm 35mm
Sensor size: 847.28mm2 (35.60mm x 23.80mm) 858.01mm2 (35.90mm x 23.90mm)
Approximate Pixel Pitch: 8.40 microns 4.35 microns
Focal Length Multiplier: 1.0x 1.0x
Aspect Ratio: 3:2 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Fixed None
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes No
On-Sensor Phase Detect: No No
DxO Sensor Score: 85 100
DxO Color Depth Score (bits): 23.6 26.4
DxO Dynamic Range Score (evs): 13.3 14.8
DxO Maximum Effective ISO Score (iso): 2,993 2,660
Image Capture
Image Resolution: 4240 x 2832 (12.0 MP, 3:2),
4240 x 2384 (10.1 MP, 16:9),
2768 x 1848 (5.1 MP, 3:2),
2768 x 1560 (4.3 MP, Other),
2128 x 1416 (3.0 MP, 3:2),
2128 x 1200 (2.6 MP, Other),
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)
8256 x 5504 (45.4 MP, 3:2),
6192 x 4128 (25.6 MP, 3:2),
4128 x 2752 (11.4 MP, 3:2),
6880 x 4584 (31.5 MP, 3:2),
5152 x 3432 (17.7 MP, 3:2),
3440 x 2288 (7.9 MP, 3:2),
6880 x 5504 (37.9 MP, 5:4),
5152 x 4120 (21.2 MP, 5:4),
3440 x 2752 (9.5 MP, 5:4),
5504 x 5504 (30.3 MP, 1:1),
4128 x 4128 (17.0 MP, 1:1),
2752 x 2750 (7.6 MP, 1:1)
Image File Format: JPEG, RAW (14-bit ARW 2.3), RAW+JPEG JPEG (EXIF 2.31), NEF (RAW): 12 or 14 bit, lossless compressed, compressed, or uncompressed; large, medium, and small available (medium and small images are recorded at a bit depth of 12 bits using lossless compression); TIFF
Continuous-mode frames/second: 5.0 7.1
Video Capture
Can take movies: Yes Yes
Movie Resolution: 3840x2160 (30p/​25p/​24p)
1920x1080 (60p/​60i/​50p/​50i/​30p/​25p/​24p)
1280x720 (30p/​25p)
1920x1080 (120p/​100p)
3840x2160 (30p/​25p)
1920x1080 (60p/​50p/​30p/​25p/​24p)
1280x720 (60p/​50p)
1920x1080 (120p/​100p)
Movie File Format: XAVC-S, AVCHD 2.0, MP4 with stereo sound MOV/MP4 (H.265/MPEG-4 AVC, Linear PCM/AAC audio)
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 E Nikon F
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: Yes Yes
Digital Zoom Values: Up to 4x; 2x Clear Image Digital Zoom 1.2x, 1.5x (DX), 5:4, 1:1 crop modes
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: 169-point contrast-detect AF: Wide (169 points), Center, Flexible Spot (S/M/L), Zone, Expand Flexible Spot, Lock-on AF (Wide / Zone / Center / Flexible Spot (S/M/L) / Expand Flexible Spot) Nikon Advanced Multi-CAM 20K autofocus sensor module with TTL phase detection and fine-tuning: 153 focus points (including 99 cross-type sensors and 15 sensors that support f/8), of which 55 (35 cross-type sensors and 9 f/8 sensors) are available for selection; Contrast-detect AF in Live View mode
Auto Focus Assist Light? Yes No
Manual Focus: Yes Yes
Viewfinder
Viewfinder: EVF / LCD Optical / LCD
Viewfinder Type: EVF: 0.51-inch 2.4M-dot XGA color OLED, 100% coverage, 0.78x magnification, -4.0 to +3.0 diopter, 23mm eyepoint from the eyepiece lens, 18.5 mm from the eyepiece frame at -1m-1 (CIPA standard) SLR; eye-level pentaprism, 100% coverage, 0.75x magnification, 17mm eyepoint, -3 to +1 diopter
Focus Peaking: Yes Yes
EVF Resolution: 2,359,296 dots (786,432 pixels) n/a
Viewfinder Magnification (35mm equivalent): 0.78x 0.75x
Viewfinder Magnification (nominal/claimed): 0.78x 0.75x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 3.2
Rear Display Resolution: 1,228,800 dots (307,200 px) 2,359,000 dots (589,750 px)
Touchscreen: No Yes
Articulating Screen: Yes Yes
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom: 13.3x 32.0x
Top Deck Display: No Yes
Exposure
Maximum ISO (native): 102400 25600
Minimum ISO (native): 100 64
ISO Settings: Auto, 100 - 102,400, expandable to 50 - 409,600 Auto, 64 - 25,600 in 1/3, 1/2 or 1EV steps, plus down to 32 in Lo-1, up to 102,400 in Hi-2
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Cloudy, Incandescent, Fluorescent (4 settings), Flash, Custom, Color Temp./ Filter (2500-9900K with 57-step Magenta/Green and 29-step Amber/Blue compensation), Underwater Auto (3), Incandescent, Fluorescent (7), Direct Sunlight, Flash, Cloudy, Shade, Preset Manual (6) (Spot WB available in Live View), Color Temperature (2,500K-10,000K); Fine-tuning available for all options.
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 Multi-segment, Center-weighted, Spot 180K-pixel 3D Color Matrix Metering III, Center-weighted (weight of 75% given to 12-mm circle in center of frame; diameter of circle can be changed to 8, 15 or 20 mm, or weighting can be based on average of entire frame), Spot (4mm circle or about 1.5% frame, centered on selected focus area), Highlight-weighted: Available with type G, E, and D lenses
Program Auto Exposure: Yes Yes
Aperture Priority: Yes Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes: Scene Modes: Portrait, Landscape, Macro, Sports Action, Sunset, Night Portrait, Night Scene, Hand-held Twilight, Anti Motion Blur; Sweep Panorama; Movie / High Frame Rate; Picture Effect: Posterization (Color, B/W), Pop Color, Retro Photo, Partial Color (R, G, B, Y), High Contrast Monochrome, Toy Camera, Soft Highkey, Soft Focus, HDR Painting, Rich-tone Monochrome, Miniature, Watercolor, Illustration; Dynamic Range Optimizer (Auto/Level (1-5)), Auto High Dynamic Range: Auto Exposure Difference, Exposure Difference Level (1.0-6.0 EV, 1.0 EV step) None
Self Timer: 2, 5, 10; 3/5 shots after 2/5/10 seconds 2/5/10/20 seconds
Time Lapse (intervalometer):   Yes
High Resolution Composite: No No
Flash
Built-in Flash: No No
Flash Modes: Flash off, Auto flash, Fill-flash, Slow Sync., Rear Sync., Hi-speed Sync, Wireless; Red-eye reduction: On/Off n/a
Flash Guide Number (ISO 100): n/a n/a
Flash Range Description: n/a n/a
Max Flash Sync: 1/250 1/250
Flash Exposure Compensation: +/- 3.0 EV in 0.3EV steps -3 to +1 EV in 0.3EV steps
External Flash Connection: Multi Interface Hot shoe ISO-type hot-shoe, PC Sync terminal
Built-In Wireless Flash Control: No No
Image Storage
Usable Memory Types: MS PRO Duo / SD / SDHC / SDXC XQD / SD / SDHC / SDXC
UHS Support: UHS-I UHS-II
Other Memory:   1 SD UHS-II slot, 1 XQD slot
Dual Card Slots: No Yes
RAW Capture Support: Yes Yes
Uncompressed Format: RAW (14-bit ARW 2.3), RAW+JPEG NEF (RAW): 12 or 14 bit, lossless compressed, compressed, or uncompressed; large, medium, and small available (medium and small images are recorded at a bit depth of 12 bits using lossless compression); TIFF
Movie File Format: XAVC-S, AVCHD 2.0, MP4 with stereo sound MOV/MP4 (H.265/MPEG-4 AVC, Linear PCM/AAC audio)
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: Yes Yes
NFC: Yes No
Bluetooth: No Yes
Built-In GPS: No No
Microphone Jack: Yes Yes
Headphone Jack: Yes Yes
External Connections: USB 2.0 High Speed,WiFi USB 3.0 Super Speed,Bluetooth,WiFi
PictBridge Compliant: No Yes
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Yes, via USB or Wi-Fi Optional wired or wireless
Connections (extended): Micro HDMI (Type-D), Multi Micro USB connector, Stereo microphone jack (3.5mm), Stereo headphone jack (3.5mm) Mini HDMI (Type C), USB 3.0 Micro-B, 10-pin Expansion Terminal (GP-1 GPS compatible), Stereo Mic Mini Jack (3.5mm), Stereo Audio Out (3.5mm)
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 0.56 <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): 0.60 <0.3
Camera penalizes early shutter press? No No
JPEG shooting speed in burst mode (fps, max resolution): 5.0 7.1
Buffer size for JPEG shooting in burst mode (frames, max resolution): 63 200
RAW shooting speed in burst mode (fps): 5.0 7.1
Buffer size for RAW shooting in burst mode (frames): 28 200
RAW+JPEG shooting speed in burst mode (fps): 5.0 7.1
Buffer Size for RAW+JPEG shooting in burst mode (frames): 25 53
Shutter lag (full AF, wide/mid): 0.19 seconds 0.08 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):   0.73 seconds
Shutter lag (prefocused, live view - DSLR):   0.145 seconds
Shutter Lag (manual focus): 0.111 seconds 0.052 seconds
Shutter lag (full AF, with flash):    
Shutter Lag (prefocused): 0.021 seconds 0.046 seconds
Shutter Lag (notes):    
Startup Time: 2.9 seconds 0.2 seconds
Play -> Record Time: 1.1 seconds 0.1 seconds
Flash cycle time, full power:    
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 370 shots  
Battery Life, Still (CIPA Rating OVF/EVF): 310 shots 1840 shots
Battery Life, Video:   70 minutes
Battery Form Factor: Proprietary NP-FW50 Proprietary
Usable Battery Types: Lithium-ion rechargeable EN-EL15a Lithium-ion rechargeable or MB-D18 battery grip
Batteries Included: 1 x Proprietary NP-FW50 Lithium-ion rechargeable 1 x Proprietary EN-EL15a Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes Yes
Internal Charging Supported: Yes No
Software
Included Software: Capture One Express (for Sony) free download  
OS Compatibility: Windows, Mac OS X  
Miscellaneous
Notes & Features: 5-axis sensor-shift image stabilization system, larger 0.78x EVF, internal 4K recording, S-Gamut3.Cine/S-Log3 and S-Gamut3/S-Log3 support, 120p Full HD slo-mo video, enhanced Zebra function, new Gamma Display Assist function, clean HDMI output