Sony a7 III vs Sony a1 Specifications Comparison
Camera Feature | Sony a7 III | Sony a1 |
---|---|---|
Announced | February 2018 | January 2021 |
Camera Type | Mirrorless | Mirrorless |
Sensor Type | BSI CMOS | Stacked CMOS |
Image Processor | BIONZ X | BIONZ XR |
Resolution | 24.2 MP | 50.1 MP |
Pixel Dimensions | 6000×4000 | 8640×5760 |
Sensor Dimensions | 35.6 x 23.8 mm (Full Frame) | 35.9 x 24.0 mm (Full Frame) |
Sensor Pixel Size | 5.9µ | 4.16µ |
Low Pass Filter | No1 | No |
IBIS (In-Body Image Stabilization) | Yes | Yes |
Base ISO | ISO 100 | ISO 100 |
Max Native ISO | ISO 51,200 | ISO 32,000 |
Extended ISOs | ISO 50-204,800 | ISO 50-102,400 |
High-Resolution Sensor Shift | No | Yes |
Focus Stack Bracketing | No | No |
Pre-Shoot Burst Mode | No | No |
Fastest Shutter Speed | 1/8000 | 1/32000 |
Longest Shutter Speed | 30 seconds | 30 seconds |
Continuous Shooting (Mechanical Shutter) | 10 FPS | 10 FPS |
Continuous Shooting (Electronic Shutter) | 10 FPS | 30 FPS |
Notes for High FPS Shooting | None | Compressed raw at 30 FPS (uncompressed and lossless compressed raw at 20 FPS) |
Buffer Size (Raw) | 89 frames (10 FPS) | 155 frames (30 FPS), 238 frames (20 FPS) |
Autofocus System | Hybrid PDAF | Hybrid PDAF |
Autofocus Points | 693 | 759 |
Maximum Low-Light AF Sensitivity (Standardized to f/2, ISO 100) | -3 EV | -4 EV |
Standard Flash Sync Speed | 1/250 | 1/400 |
Curtain to Protect Sensor at Shutdown | No | Yes |
Video Features | ||
Maximum Video Bit Depth (Internal) | 8 bits | 10 bits |
Maximum Video Bit Depth (External) | 8 bits | 12 bits |
Raw Video | No | Yes, externally |
8K Maximum Framerate | N/A | 30 FPS |
4K Maximum Framerate | 30 FPS | 120 FPS |
1080P Maximum Framerate | 120 FPS | 240 FPS |
Additional Video Crop Factor | No | No |
Chroma Subsampling | 4:2:0, 4:2:2 (External) | 4:2:2 |
Video Recording Limit | 30 min | 780 min |
Physical and Other Features | ||
Card Slots | 2 | 2 |
Slot 1 Type | SD (UHS-II) | CFExpress Type A, or SD (UHS-II) |
Slot 2 Type | SD (UHS-I) | CFExpress Type A, or SD (UHS-II) |
Rear LCD Size (Diagonal) | 3.0 in | 3.0 in |
Rear LCD Resolution | 0.92 million dots | 1.44 million dots |
Articulating LCD | Single Axis | Single Axis |
Touchscreen | Yes | Yes |
Viewfinder | EVF | EVF |
Viewfinder Magnification | 0.78x | 0.90x |
Viewfinder Resolution | 2.36 million dots | 9.44 million dots |
Viewfinder Coverage | 100% | 100% |
Voice Memo | No | Yes |
Headphone Jack | Yes | Yes |
Microphone Jack | Yes | Yes |
Built-in Flash | No | No |
GPS | No | No |
Bluetooth | Yes | Yes |
WiFi | Yes | Yes |
USB Type | Type C 3.1 | Type C 3.2 Gen 1 |
Battery Type | NP-FZ100 | NP-FZ100 |
Battery Life (Viewfinder) | 610 frames | 430 frames |
Battery Life (Rear LCD) | 710 frames | 530 frames |
Weather Sealed | Yes | Yes |
Weight (Body Only w/ Battery + Card) | 650 g (1.43 lbs.) | 737 g (1.62 lbs.) |
Dimensions (LxHxD) | 127 x 96 x 74 mm (5.0 x 3.8 x 2.9″) | 129 x 97 x 81 mm (5.1 x 3.9 x 3.3″) |
Price Comparison | ||
MSRP, Body Only | $2000 (Check Current Price) | $6500 (Check Current Price) |
Used Prices | Sony a7 III Used Prices | Sony a1 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. |
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