Sony Alpha 7 III (a7 III / Alpha a7 III / α7 III)
| Brand | Sony 2018 |
| Model | E99SNILCE7M3 |
| Released Year | 2018 |
| Type | Mirrorless Cameras |
| Series | Alpha |
| Color | Black |
| Compatible Mountings | Sony E |
| Autofocus | Yes |
| Photo Sensor Resolution | 24.2 MP |
| Video Resolution | 4K UHD (3840 x 2160) up to 30fps |
| File Format | JPEG, RAW |
| Status | Active |
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Overview
The Sony Alpha 7 III is a full-frame mirrorless camera featuring a 24.2MP BSI CMOS sensor and the BIONZ X image processor, enabling high-speed image processing and excellent noise reduction. It supports a wide ISO range of 100-51200 (expandable to 50-204800), optimizing performance in various lighting conditions. The camera offers 693 phase-detection AF points and 425 contrast-detection points for rapid and accurate autofocus tracking. It supports 4K HDR video recording with full pixel readout and no pixel binning, ensuring high detail and color fidelity. The robust 5-axis in-body image stabilization compensates for camera shake up to 5 stops, enhancing handheld shooting stability. The body is constructed with magnesium alloy, providing weather sealing for durability in challenging environments.
Specifications
| Built-In Media | Battery |
| Are Batteries Included | No |
| External-Memory Size | 64 GB |
| Remote Included | No |
| UPC | 657379038211 |
| Item Height | 10.6 inches |
| Manufacturer | Sony |
| Connectivity Technology | USB |
| Wireless Technology | Wi-Fi |
| Video Output | HDMI |
| Total USB 3.0 Ports | 1 |
| Total USB Ports | 1 |
| Total Video Out Ports | 1 |
| Shooting Modes | Automatic, Custom, Landscape, Macro, Manual, Movie, Panorama, Portrait, Shutter Priority, Sports, Underwater |
| Digital-Still | Yes |
| Movie Mode | Yes |
| Image Capture Type | Stills & Video |
| Night vision | No |
| Auto Focus Technology | Contrast Detection |
| Focus Features | Contrast Detection Autofocus |
| Focus Type | Auto Focus |
| Focus Mode | Continuous-Servo AF (AF-C) |
| Autofocus | Yes |
| File Format | JPEG, RAW |
| Effective Still Resolution | 24.2 MP |
| JPEG Quality Level | Fine |
| Dynamic Stops | 15 Stops |
| Total Still Resolution | 24.2 MP |
| Maximum Focal Length | 105 Millimeters |
| Lens Type | Standard |
| Zoom | Optical Zoom |
| Camera Lens | 10 |
| Minimum Focal Length | 24 Millimeters |
| Lens Correction Type | Chromatic Aberration, Peripheral Illumination, Distortion |
| Lens Construction | 14 elements in 12 groups |
| Metering Methods | Multi-Segment, Center-Weighted, Spot |
| Exposure Control | Automatic, Aperture Priority, Shutter Priority, Manual |
| White Balance Settings | Auto, Cloudy, Daylight, Flash torch |
| Self Timer | 1E+1, 2, 2E+1 |
| Display Type | OLED |
| Dots Per Screen | 2359K dots |
| Display Fixture Type | Tilting |
| Has Color Screen | Yes |
| Flash Memory Type | SD |
| Memory Slots Available | 1 |
| Memory Storage Capacity | 64 GB |
| Write Speed | 277 MB/s, 90 MB/s |
| Flash Memory Speed Class | UHS-II U3 |
| Flash Memory UHS Speed Class | UHS-II, U3, or 60MB/s |
| Flash Memory Video Speed Class | U3 |
| Flash Memory Bus Interface Type | UHS-I |
| Compatible Mountings | Sony E |
| Sensor Type | 24.2 MP Full-Frame BSI CMOS |
| Image stabilization | Digital, Optical |
| Maximum Aperture | 4 f |
| Expanded ISO Minimum | 100 |
| Photo Sensor Resolution | 24.2 MP |
| Photo Sensor Size | Full Frame (35mm) |
| Minimum Shutter Speed | 0.1 seconds |
| Form Factor | Compact, Mirrorless |
| Special Feature | Lightweight |
| Color | Black |
| Item Weight | 10.1 Pounds |
| Video Resolution | 4K UHD (3840 x 2160) up to 30fps |
| Viewfinder | 0.5-inch 2.36M-dot OLED EVF |
| Flash Modes | Auto, On |
| Camera Flash | F4.0 |
| Skill Level | Professional |
| Compatible Devices | Sony E-mount devices |
| Continuous Shooting | 10 fps |
| Aperture modes | F4.0 |
| Viewfinder Magnification | 0.78x |
| Audio Input | Microphone |
| Flash Sync Speed | 1/200 or 1/250 |
| Video Capture Format | 4k |
| Expanded ISO Maximum | 102400 |
| Battery Type | Koah PRO Sony NP-FZ100 Two-Pack Rechargeable 2000mAh Battery and Dual Charger |
| Processor Description | bionz x |
| Water Resistance Level | Not Water Resistant |
| Supported Audio Format | AAC, MP3 |
| Frame Rate | 30 FPS |
| Release Year | 2018 |
| Image Processor | BIONZ X |
| ISO Sensitivity | 100-51200 (expandable to 50-204800) |
| Autofocus Points | 693 phase-detection + 425 contrast-detection |
| Image Stabilization | 5-axis in-body stabilization (up to 5 stops) |
| Shutter Speed Range | 1/8000 to 30 sec, Bulb |
| Continuous Shooting Speed | Up to 10 fps with AF/AE tracking |
| LCD Screen | 3.0-inch 922k-dot tilting touchscreen |
| Storage Media | Dual SD card slots (one UHS-II compatible) |
| Battery | NP-FZ100 rechargeable lithium-ion |
| Connectivity | Wi-Fi, NFC, Bluetooth |
| Lens Mount | Sony E-mount |
| Dimensions | 126.9 x 95.6 x 73.7 mm |
| Weight | Approx. 650 g (with battery and memory card) |
| Build | Magnesium alloy body with weather sealing |
Images
Key Advantages
The Alpha 7 III offers excellent image quality with a balance of resolution and low light performance. Its advanced autofocus system with a high number of phase-detection points ensures fast and precise focusing. The in-body 5-axis stabilization benefits both still photography and video capture. The camera's battery life is notably improved, allowing extended shooting sessions. Dual SD card slots provide flexible storage options and data backup. Furthermore, its compatibility with a wide range of Sony E-mount lenses enhances versatility for different photographic applications.
Limitations
Despite improvements, the Alpha 7 III's autofocus performance in low-contrast or very dark scenes may be outperformed by newer models. The touchscreen functionality is limited to focus point selection and does not support extensive menu navigation. It lacks a fully articulating screen, which can limit flexibility for some video or selfie shooting scenarios. The menu system can be complex and may require a learning curve for new users. 4K video recording is limited to 30fps, with no 60fps support at this resolution. Additionally, its overall weight and size, while compact for a full-frame camera, are heavier compared to some mirrorless competitors.
FAQ
What sensor does the Sony Alpha 7 III use?
It uses a 24.2-megapixel full-frame back-illuminated CMOS sensor.
Does the Alpha 7 III have in-body image stabilization?
Yes, it features 5-axis in-body image stabilization compensating up to 5 stops.
Can the Alpha 7 III record 4K video?
Yes, it records 4K UHD video at up to 30fps with full pixel readout and no pixel binning.
What autofocus system does the camera use?
It features a hybrid autofocus system with 693 phase-detection and 425 contrast-detection points.
What are the storage options on the Alpha 7 III?
It has dual SD card slots, one compatible with UHS-II for fast data transfer.
Is the screen fully articulating on the Alpha 7 III?
No, it has a tilting touchscreen but does not fully articulate.
What is the battery life like for this camera?
The NP-FZ100 battery provides approximately 710 shots per charge under CIPA standards.
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