Sony a7R II vs Sony a7 III Specifications Comparison
| Camera Feature | Sony a7R II | Sony a7 III |
|---|---|---|
| Announced | June 2015 | February 2018 |
| Camera Type | Mirrorless | Mirrorless |
| Sensor Type | BSI CMOS | BSI CMOS |
| Image Processor | BIONZ X | BIONZ X |
| Resolution | 42.4 MP | 24.2 MP |
| Pixel Dimensions | 7952×5304 | 6000×4000 |
| Sensor Dimensions | 35.9 x 24.0 mm (Full Frame) | 35.6 x 23.8 mm (Full Frame) |
| Sensor Pixel Size | 4.51µ | 5.93µ |
| Low Pass Filter | No | No1 |
| IBIS (In-Body Image Stabilization) | Yes | Yes |
| Base ISO | ISO 100 | ISO 100 |
| Max Native ISO | ISO 25,600 | ISO 51,200 |
| Extended ISOs | ISO 50-102,400 | ISO 50-204,800 |
| 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 | 10 FPS |
| Continuous Shooting (Electronic Shutter) | 5 FPS | 10 FPS |
| Notes for High FPS Shooting | 12-bit raw in continuous drive modes (14-bit in single-shot mode) | None |
| Buffer Size (Raw) | 23 frames (5 FPS) | 89 frames (10 FPS) |
| Autofocus System | Hybrid PDAF | Hybrid PDAF |
| Autofocus Points | 399 | 693 |
| Maximum Low-Light AF Sensitivity (Standardized to f/2, ISO 100) | -2 EV | -3 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 FPS |
| 1080P Maximum Framerate | 60 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) | SD (UHS-II) |
| Slot 2 Type | N/A | 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 | Yes |
| Viewfinder | EVF | EVF |
| Viewfinder Magnification | 0.78x | 0.78x |
| 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 | Yes |
| WiFi | Yes | Yes |
| USB Type | Type B 2.0 | Type C 3.1 |
| Battery Type | NP-FW50 | NP-FZ100 |
| Battery Life (Viewfinder) | 290 frames | 610 frames |
| Battery Life (Rear LCD) | 340 frames | 710 frames |
| Weather Sealed | Yes | Yes |
| Weight (Body Only w/ Battery + Card) | 625 g (1.38 lbs.) | 650 g (1.43 lbs.) |
| Dimensions (LxHxD) | 127 x 96 x 70 mm (5.0 x 3.8 x 2.8″)2 | 127 x 96 x 74 mm (5.0 x 3.8 x 2.9″) |
Price Comparison | ||
| MSRP, Body Only | $1800 (Discontinued) | $2000 (Check Current Price) |
| Used Prices (Affiliate) | Sony a7R II Used Prices | Sony a7 III Used Prices |
| 1It is unconfirmed whether the Sony a7 III has a low-pass filter. The general (and perhaps surprisng) consensus is that it does not, or if it does, it is a weak horizontal-only AA filter. | ||
| 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. | ||
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