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Sony a7 III Mirrorless Camera

BH #SOA73 • MFR #ILCE7M3/B
Sony a7 III Mirrorless Camera
Key Features
  • 24MP Full-Frame Exmor R BSI CMOS Sensor
  • BIONZ X Image Processor & Front-End LSI
  • 693-Point Hybrid AF System
  • UHD 4K30p Video with HLG & S-Log3 Gammas
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.
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Sony A7 III Overview

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.
  • Lock-on AF maintains focus on moving subjects through the use of a configurable frame that is set over the desired moving subject
  • Expand Flexible Spot employs neighboring focus points to retain focus on moving subjects even if the originally selected point loses focus
  • Eye AF can be used to base focus on recognized subjects' eyes for portraits and is available in both AF-S and AF-C modes
  • Focus Magnifier function can be used for critical focus when homing in on minute subject details
  • Rear touchscreen can also be used for Touch Focus control and a Touchpad Focus Control mode lets you use the rear screen intuitively while keeping your eye to the viewfinder
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
  • The XGA OLED Tru-Finder EVF features a 2.36m-dot resolution and 0.78x magnification for bright, clear viewing in high detail.
  • In addition to the EVF, a 3.0" 922k-dot rear LCD is also available, which has a touch panel design for intuitive operation and focusing control. The screen also tilts upward 107° and downward 41° to benefit working from high and low angles.
  • Magnesium-alloy chassis assures rigidity, durability, and stability while remaining lightweight. The lens mount has also been improved to better support heavy lenses and the grip rigidity has been improved for more comfortable hand-holding.
  • Weather-sealing has been employed to resist dust and moisture for reliable operation in harsh weather conditions.
  • Using the NP-FZ100 battery, the a7 III has improved battery life and is now rated for approximately 710 shots per charge.
  • Dual SD memory card slots allow for flexible file saving and handling, and can be configured to partition raw and JPEG files or can be used for overflow recording. One of the card slots is rated to support UHS-II memory cards.
  • A USB 3.0 Type-C port has been added, in addition to a micro-USB port, for faster, more reliable tethering support. The USB Type-C connection allows the camera to be charged from the host power source while connected.
  • Built-in Wi-Fi enables the a7 III to instantly share imagery to mobile devices for direct sharing online to social networking, via email, and to cloud storage sites.
  • NFC (Near Field Communication) is also supported, which allows for one-touch connection between the camera and compatible mobile devices; no complex set-up is required. Once connected, the linked mobile device can also display a live view image on its screen and remotely control the camera's shutter.
  • Bluetooth connectivity allows for location data acquisition.

Sony A7 IIISpecs

Key Specs
Lens Mount
Sony E
Sensor Resolution
Actual: 25.3 Megapixel
Effective: 24.2 Megapixel (6000 x 4000)
Image Sensor
35.6 x 23.8 mm (Full-Frame) CMOS
Image Stabilization
Sensor-Shift, 5-Axis
ISO Sensitivity Range
Photo
100 to 51,200 in Manual Mode (Extended: 50 to 204,800)
100 to 12,800 in Auto Mode
Video
100 to 51,200 in Manual Mode (Extended: 102,400)
100 to 12,800 in Auto Mode
Internal Recording Modes
AVCHD/H.264
1920 x 1080i at 50/59.94 fps [17 to 24 Mb/s]
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 1/2/3/4/6/8/12/15/23.98/25/29.97/50/59.94/100/120 fps [16 to 100 Mb/s]
External Recording Modes
4:2:2 8-Bit via HDMI
UHD 4K (3840 x 2160) at 23.98/25/29.97 fps
1920 x 1080p at 23.98/50/59.94 fps
1920 x 1080i at 50/59.94 fps
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
1x Micro-HDMI Output
Audio I/O
1x 1/8" / 3.5 mm TRS Stereo Headphone Output
1x 1/8" / 3.5 mm TRS Stereo Microphone Input
Power I/O
1x USB-C Input/Output
Other I/O
1x Sony Multi/Micro-USB Remote Input/Output
1x USB-C (USB 3.2 / 3.1 Gen 1) Data Input/Output (Shared with Power Input)
Wireless
Wi-Fi 4 (802.11n), Bluetooth 4.1, NFC
Display Type
Tilting Touchscreen LCD
Battery Type
1x NP-FZ100 Rechargeable Lithium-Ion, 7.2 VDC, 2280 mAh (Approx. 610 Shots)
Imaging
Lens Mount
Sony E
Sensor Resolution
Actual: 25.3 Megapixel
Effective: 24.2 Megapixel (6000 x 4000)
Image Sensor
35.6 x 23.8 mm (Full-Frame) CMOS
Sensor Crop (35mm Equivalent)
Crop Factor: 1x
Additional Modes: 1.5x
*Additional Crop Occurs in Select Video Modes
Image Stabilization
Sensor-Shift, 5-Axis
Built-In ND Filter
No
Capture Type
Stills & Video
Exposure Control
Shutter Type
Mechanical Focal Plane Shutter and Electronic Rolling Shutter 
Shutter Speed
1/8000 to 30 Seconds
1/8000 to 1/4 Second in Movie Mode
Bulb/Time Mode
Bulb Mode
ISO Sensitivity Range
Photo
100 to 51,200 in Manual Mode (Extended: 50 to 204,800)
100 to 12,800 in Auto Mode
Video
100 to 51,200 in Manual Mode (Extended: 102,400)
100 to 12,800 in Auto Mode
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
2500 to 9900K
Presets: Auto, Cloudy, Color Temperature, Color Temperature Filter, Custom, Daylight, Flash, Fluorescent (Cool White), Fluorescent (Daylight), Fluorescent (Warm White), Incandescent, Shade, Underwater
Continuous Shooting
Up to 10 fps at Maximum Resolution for up to 89 Frames (Raw) / 177 Frames (JPEG)
Interval Recording
No
Self-Timer
2/5/10-Second Delay
Still Image Capture
Aspect Ratio
3:2, 16:9
Image File Format
JPEG, Raw
Bit Depth
14-Bit
Video Capture
Internal Recording Modes
AVCHD/H.264
1920 x 1080i at 50/59.94 fps [17 to 24 Mb/s]
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 1/2/3/4/6/8/12/15/23.98/25/29.97/50/59.94/100/120 fps [16 to 100 Mb/s]
External Recording Modes
4:2:2 8-Bit via HDMI
UHD 4K (3840 x 2160) at 23.98/25/29.97 fps
1920 x 1080p at 23.98/50/59.94 fps
1920 x 1080i at 50/59.94 fps
Fast-/Slow-Motion Support
Yes
Gamma Curve
HDR-HLG, Sony S-Log 2, Sony S-Log 3
Recording Limit
Up to 30 Minutes
IP Streaming
No
Built-In Microphone
Stereo
Audio Recording
XAVC S: 2-Channel 16-Bit 48 kHz 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
1x Micro-HDMI Output
Audio I/O
1x 1/8" / 3.5 mm TRS Stereo Headphone Output
1x 1/8" / 3.5 mm TRS Stereo Microphone Input
Power I/O
1x USB-C Input/Output
Other I/O
1x Sony Multi/Micro-USB Remote Input/Output
1x USB-C (USB 3.2 / 3.1 Gen 1) Data Input/Output (Shared with Power Input)
Wireless
Wi-Fi 4 (802.11n), Bluetooth 4.1, NFC
Mobile App Compatible
Yes: Android & iOS
App Name: Imaging Edge Mobile
Functionality: Access Stored Files, Remote Control
Global Positioning (GPS, GLONASS, etc.)
GPS
*Via Connected Smartphone
Monitor
Display Size
3.0"
Resolution
921,600 Dot
Display Type
Tilting Touchscreen LCD
Viewfinder
Type
Built-In Electronic
Size
0.5"
Resolution
2,359,296 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/Light
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
Shoe Mount
General
Battery Type
1x NP-FZ100 Rechargeable Lithium-Ion, 7.2 VDC, 2280 mAh (Approx. 610 Shots)
Shoe Mount
1x Intelligent Hot Shoe
Tripod Mounting Thread
1x 1/4"-20 Female (Bottom)
Material of Construction
Magnesium Alloy
Operating Conditions
32 to 104°F / 0 to 40°C 
Storage Conditions
-4 to 131°F / -20 to 55°C 
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 (With Battery, Recording Media)
Packaging Info
Package Weight
2.485 lb
Box Dimensions (LxWxH)
8.3 x 6.6 x 5.4"

Sony A7 III Reviews

See any errors on this page? Let us know

Does Sony A7III have an aperture priority setting ...

Does Sony A7III have an aperture priority setting for video recording?
Asked by: Sally
Yes
Answered by: Anonymous
Date published: 2020-01-25

Does the a73 have silent shutter?

Does the a73 have silent shutter?
Asked by: TOM
Yes, the a73 does have a silent shutter option by enabling the electronic shutter.
Answered by: Anonymous
Date published: 2024-04-22

How many Stops of Dynamic Range does this have?

How many Stops of Dynamic Range does this have?
Asked by: Dustin
The A73 has 15 stops of DR.
Answered by: Rob
Date published: 2021-02-05

how difficult is the Autofocus without Real Time ...

how difficult is the Autofocus without Real Time Track Autofocus?
Asked by: Dustin
If the subject is moving, it is best to use Real Time Track Autofocus for the best results.
Answered by: Kirk
Date published: 2020-01-30

Can the assisted magnification and autofocus ...

Can the assisted magnification and autofocus features still functions work using non-Sony vintage lenses? I use vintage lenses with my Sony A7rii and I'm still able to use the 10x magnification feature. I rented an a7iii and wasn't able to do it, but I'm not yet familiar with the A7iii's full functionality. Is it possible to use the magnification and autofocus features with other lenses?
Asked by: lisa
Use mine with a Tap, m lenses and Voigts work well
Answered by: Anonymous
Date published: 2019-04-10

Does this camera package come with any warranty?

Does this camera package come with any warranty?
Asked by: Chou-Wei
As indicated under the "In The Box" section under the Overview tab on our website, the Sony Alpha a7 III Mirrorless Digital Camera (Body Only), B&H # SOA73, comes with Sony's standard Limited 1-Year Warranty, which is valid for use in the United States only.
Answered by: Manzell L
Date published: 2018-11-12

Are digital zoom and/or clear image zoom ...

Are digital zoom and/or clear image zoom available during 120fps?
Asked by: Jacob
No
Answered by: SonyListens
Date published: 2019-02-12

Does it really take 4 hr to charge the battery ...

Does it really take 4 hr to charge the battery in-camera? Just got my A7iii, and it seems AT LEAST that slow!
Asked by: Roger L.
Yes, the external charger (BC-QZ1) will charge it much faster.
Answered by: Rob
Date published: 2021-01-14
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