Sony a7R II vs Sony a7S Specifications Comparison
| Camera Feature | Sony a7R II | Sony a7S |
|---|---|---|
| Announced | June 2015 | April 2014 |
| Camera Type | Mirrorless | Mirrorless |
| Sensor Type | BSI CMOS | CMOS |
| Image Processor | BIONZ X | BIONZ X |
| Resolution | 42.4 MP | 12.2 MP |
| Pixel Dimensions | 7952×5304 | 4240×2832 |
| Sensor Dimensions | 35.9 x 24.0 mm (Full Frame) | 35.8 x 23.9 mm (Full Frame) |
| Sensor Pixel Size | 4.51µ | 8.4µ |
| Low Pass Filter | No | Yes |
| IBIS (In-Body Image Stabilization) | Yes | No |
| Base ISO | ISO 100 | ISO 100 |
| Max Native ISO | ISO 25,600 | ISO 102,400 |
| Extended ISOs | ISO 50-102,400 | ISO 50-409,600 |
| High-Resolution Sensor Shift | No | No |
| Focus Stack Bracketing | No | No |
| 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 | 5 FPS |
| Continuous Shooting (Electronic Shutter) | 5 FPS | 5 FPS |
| Notes for High FPS Shooting | 12-bit raw in continuous drive modes (14-bit in single-shot mode) | Autofocus fixed at first frame for 5 FPS shooting; 12-bit raw only |
| Buffer Size (Raw) | 23 frames (5 FPS) | 31 frames (5 FPS) |
| Autofocus System | Hybrid PDAF | Contrast Detect |
| Autofocus Points | 399 | 25 |
| Maximum Low-Light AF Sensitivity (Standardized to f/2, ISO 100) | -2 EV | -4 EV |
| Standard Flash Sync Speed | 1/250 | 1/250 |
| Curtain to Protect Sensor at Shutdown | No | No |
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 FPS1 |
| 1080P Maximum Framerate | 60 FPS | 60 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 | 1 |
| Slot 1 Type | SD (UHS-I) | SD (UHS-I) |
| Rear LCD Size (Diagonal) | 3.0 in | 3.0 in |
| Rear LCD Resolution | 1.23 million dots | 0.92 million dots |
| Articulating LCD | Single Axis | Single Axis |
| Touchscreen | No | No |
| Viewfinder | EVF | EVF |
| Viewfinder Magnification | 0.78x | 0.71x |
| Viewfinder Resolution | 2.36 million dots | 2.36 million dots |
| 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 | No |
| WiFi | Yes | Yes |
| USB Type | Type B 2.0 | Type B 2.0 |
| Battery Type | NP-FW50 | NP-FW50 |
| Battery Life (Viewfinder) | 290 frames | 320 frames |
| Battery Life (Rear LCD) | 340 frames | 380 frames |
| Weather Sealed | Yes | Yes |
| Weight (Body Only w/ Battery + Card) | 625 g (1.38 lbs.) | 490 g (1.08 lbs.) |
| Dimensions (LxHxD) | 127 x 96 x 70 mm (5.0 x 3.8 x 2.8″)2 | 127 x 94 x 58 mm (5.0 x 3.7 x 2.3″)3 |
Price Comparison | ||
| MSRP, Body Only | $1800 (Discontinued) | $2500 (Discontinued) |
| Used Prices (Affiliate) | Sony a7R II Used Prices | Sony a7S Used Prices |
| 1The Sony a7S supports 4K video, but only with an external recorder over HDMI | ||
| 2The Sony a7R II’s official dimensions do not include the depth of the protruding viewfinder. To match typical standards today, 10mm were added to the a7R II’s depth measurement in this table. | ||
| 3The Sony a7S’s official dimensions do not include the depth of the protruding viewfinder. To match typical standards today, 10mm were added to the a7S’s depth measurement in this table. | ||
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