Sony a7S II vs Nikon D850 Specifications Comparison
| Camera Feature | Sony a7S II | Nikon D850 |
|---|---|---|
| Announced | September 2015 | July 2017 |
| Camera Type | Mirrorless | DSLR |
| Sensor Type | CMOS | BSI CMOS |
| Image Processor | BIONZ X | EXPEED 5 |
| Resolution | 12.2 MP | 45.7 MP |
| Pixel Dimensions | 4240×2832 | 8256×5504 |
| Sensor Dimensions | 35.6 x 23.8 mm (Full Frame) | 35.9 x 23.9 mm (Full Frame) |
| Sensor Pixel Size | 8.4µ | 4.35µ |
| Low Pass Filter | Yes | No |
| IBIS (In-Body Image Stabilization) | Yes | No |
| Base ISO | ISO 100 | ISO 64 |
| Max Native ISO | ISO 102,400 | ISO 25,600 |
| Extended ISOs | ISO 50-409,600 | ISO 32-102,400 |
| High-Resolution Sensor Shift | No | No |
| Focus Stack Bracketing | No | Yes |
| Pre-Shoot Burst Mode | No | No |
| Fastest Shutter Speed | 1/8000 | 1/8000 |
| Longest Shutter Speed | 30 seconds | 30 seconds |
| Continuous Shooting (Mechanical Shutter) | 5 FPS | 7 FPS |
| Continuous Shooting (Electronic Shutter) | 5 FPS | 7 FPS |
| Notes for High FPS Shooting | Autofocus fixed at first frame for 5 FPS shooting; 12-bit raw only | Up to 9 FPS with MB-D18 grip |
| Buffer Size (Raw) | 31 frames (5 FPS) | 200 frames (7 FPS) |
| Autofocus System | Contrast Detect | Phase Detect |
| Autofocus Points | 169 | 153 |
| Maximum Low-Light AF Sensitivity (Standardized to f/2, ISO 100) | -4 EV | -4 EV |
| Standard Flash Sync Speed | 1/250 | 1/250 |
Video Features | ||
| Maximum Video Bit Depth (Internal) | 8 bits | 8 bits |
| Maximum Video Bit Depth (External) | 8 bits | 8 bits |
| Raw Video | No | No |
| 4K Maximum Framerate | 30 FPS | 30 FPS |
| 1080P Maximum Framerate | 120 FPS | 120 FPS |
| Additional Video Crop Factor | No | No |
| Chroma Subsampling | 4:2:0, 4:2:2 (External) | 4:2:0, 4:2:2 (External) |
| Video Recording Limit | 30 min | 30 min |
Physical and Other Features | ||
| Card Slots | 1 | 2 |
| Slot 1 Type | SD (UHS-I) | CFExpress Type B |
| Slot 2 Type | N/A | SD (UHS-II) |
| Rear LCD Size (Diagonal) | 3.0 in | 3.2 in |
| Rear LCD Resolution | 1.23 million dots | 2.36 million dots |
| Articulating LCD | Single Axis | Single Axis |
| Touchscreen | No | Yes |
| Viewfinder | EVF | Pentaprism / OVF |
| Viewfinder Magnification | 0.78x | 0.75x |
| Viewfinder Resolution | 2.36 million dots | N/A |
| Viewfinder Coverage | 100% | 100% |
| Voice Memo | No | No |
| Headphone Jack | Yes | Yes |
| Microphone Jack | Yes | Yes |
| Built-in Flash | No | No |
| GPS | No | No |
| Bluetooth | No | Yes |
| WiFi | Yes | Yes |
| USB Type | Type B 2.0 | Micro B 3.0 |
| Battery Type | NP-FW50 | EN-EL15a |
| Battery Life (Viewfinder) | 310 frames | 1840 frames |
| Battery Life (Rear LCD) | 370 frames | N/A1 |
| Weather Sealed | Yes | Yes |
| Weight (Body Only w/ Battery + Card) | 627 g (1.38 lbs.) | 1005 g (2.22 lbs.) |
| Dimensions (LxHxD) | 127 x 96 x 70 mm (5.0 x 3.8 x 2.8″)2 | 146 x 124 x 79 mm (5.7 x 4.9 x 3.1″) |
Price Comparison | ||
| MSRP, Body Only | $3000 (Discontinued) | $3000 (Check Current Price) |
| Used Prices (Affiliate) | Sony a7S II Used Prices | Nikon D850 Used Prices |
| 1Not specified by Nikon | ||
| 2The Sony a7S II’s official dimensions do not include the depth of the protruding viewfinder. To match typical standards today, 10mm were added to the a7S II’s depth measurement in this table. | ||
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