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Key Features
Sony a7 III Mirrorless Camera
Well-Rounded Perfection
Distinguished by its updated sensor design, the Sony a7 III is a well-rounded camera suitable for both photo and video applications in a variety of working situations. Refined for improved speed and low-light performance, a new 24.2MP Exmor R BSI CMOS sensor and BIONZ X processor benefit image quality, video capabilities, and AF performance. The a7 III also sports a revised body design, with a new touchscreen LCD, improved EVF, larger battery, and dual memory card slots.
Full-Frame BSI Sensor and BIONZ X Processor
Featuring a back-illuminated design, the full-frame 24.2-megapixel Exmor R CMOS sensor works with the BIONZ X image processor to offer high-resolution stills and video while minimizing noise and improving speed. The BSI design also dramatically improves data transmission speed for creating 14-bit, high-resolution stills with a native sensitivity range from ISO 100-51200, which can be further expanded to ISO 50-204800. Also, it enables internal UHD 4K video recording with a wide dynamic range using the full width of the full-frame sensor. The BIONZ X processor also works in conjunction with a high-speed front-end LSI to realize faster processing times along with the ability to capture an impressive 15-stop dynamic range at low sensitivity values.
The sensor and processor combination also avails fast continuous shooting at up to 10 fps at full resolution, for up to 177 consecutive frames, and with full-time AF/AE when working with either a mechanical shutter or an electronic shutter. If shooting in live view mode, a continuous shooting rate of up to 8 fps is also possible.
UHD 4K Video Recording in XAVC S Format
Internal recording of UHD 4K movies is possible in multiple frame rates up to 30 fps and uses 2.4x oversampling, which renders greater detail, and full pixel readout is possible, too, for higher quality imagery with reduced moiré and aliasing. Full HD 1080p recording is also supported in frame rates up to 120 fps, and both 4K and FHD resolutions utilize the 100 Mb/s XAVC S format contained within an MP4 wrapper with 4:2:0 sampling.
The high-speed, 120 fps recording also enables 4x and 5x slow-motion movie recording with the frame rate set to either 30p or 24p. In addition to high-resolution internal recording, uncompressed HDMI output also enables the use of an optional external recorder for clean 4K recording with 4:2:2 sampling.
S-Log3, HLG, and Other Color and Gamma Controls
Affording extensive customizable color and gamma controls, the a7 III allows users to adjust the gamma, black level, knee, color level, and more. Shooters can use the same S-Log2 Gamma Curve that is found on high end Sony Cinema cameras that squeezes up to 1300% more dynamic range into the video signal then traditional REC709, for increased post-production flexibility.
HLG (Hybrid Log-Gamma) support is available, along with the BT.2020 color space, for recording within a wide color gamut and, in addition to S-Log2, S-Log3 is also available for producing an effective 14-stop dynamic range with increased grading control in the shadow to mid-tone regions of the image.
Autofocus and Image Stabilization
Fast Hybrid AF System
An evolved 4D FOCUS system now employs a combination of 693 phase-detection points, which cover approximately 93% of the frame, along with 425 contrast-detection areas for reliable and quick autofocus and subject tracking performance. This Fast Hybrid AF System now achieves twice the focusing speed and more reliable tracking compared to previous a7 models, as well as improved low-light focusing.
5-Axis SteadyShot INSIDE Image Stabilization
Packed into the robust a7 III is a 5-stop effective 5-axis SteadyShot INSIDE image stabilization system that compensates for five different types of camera shake encountered during handheld shooting of stills and video. This allows users to confidently use any lens, even adapted lenses, for critical imaging without encountering blur from camera shake.
For long focal lengths, the system will correct for pitch and yaw adjustments. Macro and high-magnification imagery, on the other hand, will benefit from the inclusion of horizontal and vertical shift compensation. All shooting styles will get usage out of the roll compensation. All 5 axes of stabilization will function at all times, even when used with third-party lenses and adapters or lenses with built-in optical stabilization.
Body Design and Connectivity
Sony FE 28-70mm f/3.5-5.6 OSS Lens
A Versatile Standard
A top pick for users looking for a lightweight all-around zoom, the FE 28-70mm f/3.5-5.6 OSS Lens from Sony is a great go-to for full-frame E-mount shooters. The lens has a compact, portable design that is ideal for everyday, walkaround use and its versatile wide-angle to portrait-length range suits working with a variety of subject types.
Optical Design
Autofocus, Image Stabilization, and Design
Key Features
Imaging
| Lens Mount | Sony E |
| Sensor Resolution | Actual: 25.3 Megapixel Effective: 24.2 Megapixel (6000 x 4000) |
| Sensor Type | 35.6 x 23.8 mm (Full-Frame) CMOS |
| Image Stabilization | Sensor-Shift, 5-Axis |
| Built-In ND Filter | None |
| Capture Type | Stills & Video |
Exposure Control
| Shutter Type | Electronic Shutter |
| Shutter Speed | 1/8000 to 30 Seconds |
| Bulb/Time Mode | Bulb Mode |
| ISO Sensitivity | Photo 100 to 51,200 (Extended: 50 to 204,800) Video 100 to 51,200 |
| Metering Method | Center-Weighted Average, Highlight Weighted, Multi-Zone, Spot |
| Exposure Modes | Aperture Priority, Auto, Manual, Program, Shutter Priority |
| Exposure Compensation | -5 to +5 EV (1/3, 1/2 EV Steps) |
| Metering Range | -3 to 20 EV |
| White Balance | Presets: Auto, Cloudy, Color Temperature, Custom, Daylight, Flash, Fluorescent (Cool White), Fluorescent (Daylight), Fluorescent (Warm White), Incandescent, Shade, Underwater |
| Continuous Shooting | Up to 10 fps at 24.2 MP for up to 89 Frames (Raw) / 177 Frames (JPEG) Up to 8 fps at 24.2 MP Up to 6 fps at 24.2 MP Up to 3 fps at 24.2 MP |
| Self-Timer | 2/5/10-Second Delay |
Still Image Capture
| Image Sizes | 16:9 Raw 6000 x 3376 3:2 Raw 6000 x 4000 16:9 JPEG 6000 x 3376 3936 x 2216 3008 x 1688 3:2 JPEG 6000 x 4000 3936 x 2624 3008 x 2000 |
| Aspect Ratio | 3:2, 16:9 |
| Image File Format | JPEG, Raw |
| Bit Depth | 14-Bit |
| Internal Recording Modes | H.264/XAVC S UHD 4K (3840 x 2160) at 23.98/25/29.97 fps [60 to 100 Mb/s] 1920 x 1080p at 23.98/25/29.97/50/59.94/100/119.88 fps [16 to 100 Mb/s] AVCHD/H.264 1920 x 1080i at 50/59.94 fps [17 to 24 Mb/s] |
| External Recording Modes | 4:2:2 8-Bit via HDMI UHD 4K (3840 x 2160) at 23.98/24.00/25/29.97 fps 1920 x 1080p at 23.98/24.00/50/59.94 fps 1920 x 1080i at 50/59.94 fps |
| Gamma Curve | HDR-HLG, Sony S-Log 2, Sony S-Log 3 |
| Recording Limit | Up to 30 Minutes |
| Broadcast Output | NTSC/PAL |
| IP Streaming | None |
| Built-In Microphone Type | Stereo |
| Audio Recording | XAVC S: 2-Channel LPCM Audio AVCHD: 2-Channel AC-3 Audio |
Interface
| Media/Memory Card Slot | Slot 1: SD/SDHC/SDXC (UHS-II) Slot 2: SD/SDHC/SDXC/Memory Stick Duo Hybrid (UHS-I) |
| Video I/O | 1 x Micro-HDMI Output |
| Audio I/O | 1 x 1/8" / 3.5 mm TRS Stereo Headphone Output 1 x 1/8" / 3.5 mm TRS Stereo Microphone Input |
| Power I/O | 1 x USB-C Input/Output |
| Other I/O | 1 x Sony Multi/Micro-USB Input/Output (Shared with Remote Input) 1 x USB-C (USB 3.2 / 3.1 Gen 1) Input/Output (Shared with Power Input) |
| Wireless | Wi-Fi, Bluetooth |
| Global Positioning (GPS, GLONASS, etc.) | None |
Monitor
| Size | 3.0" |
| Resolution | 921,600 Dot |
| Display Type | Tilting Touchscreen LCD |
Viewfinder
| Type | Built-In Electronic |
| Size | 0.5" |
| Resolution | 2,359,000 Dot |
| Eye Point | 23 mm |
| Coverage | 100% |
| Magnification | Approx. 0.78x |
| Diopter Adjustment | -4 to +3 |
Focus
| Focus Type | Auto and Manual Focus |
| Focus Mode | Automatic, Continuous-Servo AF, Direct Manual Focus, Manual Focus, Single-Servo AF |
| Autofocus Points | Phase Detection: 693 Contrast Detection: 425 |
| Autofocus Sensitivity | -3 to +20 EV |
Flash
| Built-In Flash | No |
| Flash Modes | Auto, Fill Flash, Hi-Speed Sync, Off, Rear Sync, Red-Eye Reduction, Slow Sync, Wireless |
| Maximum Sync Speed | 1/250 Second |
| Flash Compensation | -3 to +3 EV (1/3, 1/2 EV Steps) |
| Dedicated Flash System | TTL |
| External Flash Connection | Intelligent Hot Shoe |
Environmental
| Operating Temperature | 32 to 104°F / 0 to 40°C |
General
| Battery Type | 1 x NP-FZ100 Rechargeable Lithium-Ion, 7.2 VDC, 2280 mAh |
| Power Consumption | <3.2 W |
| Tripod Mounting Thread | 1 x 1/4"-20 Female (Bottom) |
| Accessory Mount | 1 x Hot Shoe Mount |
| Material of Construction | Magnesium Alloy |
| Dimensions (W x H x D) | 5 x 3.8 x 2.9" / 126.9 x 95.6 x 73.7 mm |
| Weight | 1.43 lb / 650 g |
Packaging Info
| Package Weight | 2.485 lb |
| Box Dimensions (LxWxH) | 8.3 x 6.6 x 5.4" |
| Focal Length | 28 to 70mm |
| Maximum Aperture | f/3.5 to 5.6 |
| Minimum Aperture | f/22 to 36 |
| Lens Mount | Sony E |
| Lens Format Coverage | Full-Frame |
| Angle of View | 75° to 34° |
| Minimum Focus Distance | 11.81" / 30 cm |
| Maximum Magnification | 0.19x |
| Optical Design | 9 Elements in 8 Groups |
| Diaphragm Blades | 7, Rounded |
| Focus Type | Autofocus |
| Image Stabilization | Yes |
| Filter Size | 55 mm (Front) |
| Dimensions (ø x L) | 2.85 x 3.27" / 72.5 x 83 mm |
| Weight | 10.41 oz / 295 g |
Packaging Info
| Package Weight | 0.95 lb |
| Box Dimensions (LxWxH) | 4.1 x 3.5 x 3.5" |
| Focal Length | 55mm |
| Maximum Aperture | f/1.8 |
| Minimum Aperture | f/22 |
| Lens Mount | Sony E |
| Lens Format Coverage | Full-Frame |
| Angle of View | 43° |
| Minimum Focus Distance | 1.64' / 50 cm |
| Maximum Magnification | 0.14x |
| Optical Design | 7 Elements in 5 Groups |
| Diaphragm Blades | 9, Rounded |
| Focus Type | Autofocus |
| Image Stabilization | No |
| Filter Size | 49 mm (Front) |
| Dimensions (ø x L) | 2.54 x 2.78" / 64.52 x 70.61 mm |
| Weight | 9.91 oz / 281 g |
Packaging Info
| Package Weight | 1.2 lb |
| Box Dimensions (LxWxH) | 8 x 4.4 x 4.3" |