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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

  • 1Description
  • 2Well-Rounded Perfection
  • 3Full-Frame BSI Sensor and BIONZ X Processor
  • 4UHD 4K Video Recording in XAVC S Format
  • 5Autofocus and Image Stabilization
  • 6Body Design and Connectivity

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 III Specs

Imaging
Lens MountSony E
Sensor ResolutionActual: 25.3 Megapixel
Effective: 24.2 Megapixel (6000 x 4000)
Sensor Type35.6 x 23.8 mm (Full-Frame) CMOS
Image StabilizationSensor-Shift, 5-Axis
Built-In ND FilterNone
Capture TypeStills & Video
Exposure Control
Shutter TypeElectronic Shutter
Shutter Speed1/8000 to 30 Seconds
Bulb/Time ModeBulb Mode
ISO SensitivityPhoto
100 to 51,200 (Extended: 50 to 204,800)
Video
100 to 51,200
Metering MethodCenter-Weighted Average, Highlight Weighted, Multi-Zone, Spot
Exposure ModesAperture 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 BalancePresets: Auto, Cloudy, Color Temperature, Custom, Daylight, Flash, Fluorescent (Cool White), Fluorescent (Daylight), Fluorescent (Warm White), Incandescent, Shade, Underwater
Continuous ShootingUp 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-Timer2/5/10-Second Delay
Still Image Capture
Image Sizes16:9 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 Ratio3:2, 16:9
Image File FormatJPEG, Raw
Bit Depth14-Bit
Internal Video Capture
Recording ModesH.264/XAVC S
UHD 4K (3840 x 2160) at 23.98p/25p/29.97p [60 to 100 Mb/s]
Full HD (1920 x 1080) at 100p/119.88p [60 to 100 Mb/s]
Full HD (1920 x 1080) at 23.98p/25p/29.97p/50p/59.94p [50 Mb/s]
Full HD (1920 x 1080) at 50p/59.94p [25 Mb/s]
Full HD (1920 x 1080) at 25p/29.97p [16 Mb/s]
AVCHD/H.264
Full HD (1920 x 1080) at 50i/59.94i [24 Mb/s]
Full HD (1920 x 1080) at 50i/59.94i [17 Mb/s]
Gamma CurveHDR-HLG, Sony S-Log 2, Sony S-Log 3
Recording LimitUp to 29 Minutes
Video SystemNTSC/PAL
Built-In Microphone TypeStereo
Audio RecordingXAVC S: 2-Channel LPCM Audio
AVCHD: 2-Channel AC-3 Audio
External Video Capture
External Recording Modes4:2:2 8-Bit via HDMI
UHD 4K (3840 x 2160) at 24.00p/25p/29.97p
Full HD (1920 x 1080) at 24.00p/50i/50p/59.94i/59.94p
IP StreamingNone
Interface
Media/Memory Card SlotSlot 1: SD/SDHC/SDXC (UHS-II)
Slot 2: SD/SDHC/SDXC/Memory Stick Duo Hybrid (UHS-I)
Video I/O1 x Micro-HDMI Output
Audio I/O1 x 1/8" / 3.5 mm TRS Stereo Headphone Output
1 x 1/8" / 3.5 mm TRS Stereo Microphone Input
Other I/O1 x Sony Multi/USB Micro-B Input/Output (Shared with Remote Input)
1 x USB Type-C (USB 3.2 / 3.1 Gen 1) Input/Output (Shared with Power Input)
Power I/O1 x USB Type-C Input/Output
WirelessWi-Fi, Bluetooth
Global Positioning (GPS, GLONASS, etc.)None
Monitor
Size3.0"
Resolution921,600 Dot
Display TypeTilting Touchscreen LCD
Viewfinder
TypeBuilt-In Electronic
Size0.5"
Resolution2,359,000 Dot
Eye Point23 mm
Coverage100%
MagnificationApprox. 0.78x
Diopter Adjustment-4 to +3
Focus
Focus TypeAuto and Manual Focus
Focus ModeAutomatic, Continuous-Servo AF, Direct Manual Focus, Manual Focus, Single-Servo AF
Autofocus PointsPhase Detection: 693
Contrast Detection: 425
Autofocus Sensitivity-3 to +20 EV
Flash
Built-In FlashNo
Flash ModesAuto, Fill Flash, Hi-Speed Sync, Off, Rear Sync, Red-Eye Reduction, Slow Sync, Wireless
Maximum Sync Speed1/250 Second
Flash Compensation-3 to +3 EV (1/3, 1/2 EV Steps)
Dedicated Flash SystemTTL
External Flash ConnectionIntelligent Hot Shoe
Environmental
Operating Temperature32 to 104°F / 0 to 40°C
General
Battery Type1 x NP-FZ100 Rechargeable Lithium-Ion, 7.2 VDC, 2280 mAh
Power Consumption<3.2 W
Tripod Mounting Thread1 x 1/4"-20 Female (Bottom)
Accessory Mount1 x Hot Shoe Mount
Material of ConstructionMagnesium Alloy
Dimensions (W x H x D)5 x 3.8 x 2.9" / 126.9 x 95.6 x 73.7 mm
Weight1.43 lb / 650 g
Packaging Info
Package Weight2.5 lb
Box Dimensions (LxWxH)8.1 x 6 x 5.4"

Sony A7 III Reviews

AMAZING!

By Alexis
Rated 5 out of 5
Date: 2022-06-30

I switched over from my Nikon D750 to this and there's a few things here and there design wise that I appreciate the Nikon for more than Sony's design but the quality and performance of the Sony exceeded my expectations and they were already so high. I love this camera and am so happy I made the switch.

Good package!

By Michael
Rated 5 out of 5
Date: 2022-05-31

It is a fine camera that has been reviewed many times. But the B&H delivery was outstanding. I wanted this for a weekend wedding, got it in plenty of time. With the additional lens I ordered with it, it was all I really needed. (Paired with Sigma 24-70 f2.8)

Exactly what I wanted and delivered quickly

By Nicholas
Rated 5 out of 5
Date: 2022-05-22

I had been waiting for the a7c to be back in stock as I thought this was the camera I wanted. Upon further research I learned it was more prescribed to me by a couple friends and what I was really after was a camera more optimized for photography. While the a7c is still an amazing camera for photography, it seems to be more geared towards video (vloging and you tubers). B&H had the camera to me 3 days after I purchased it; I am extremely happy this buy!

Review

By Lisa
Rated 4 out of 5
Date: 2022-05-15

Love my new camera and how sharp my photos turn out. My favorite thing is the eye focus.

Output Quality is Fantastic!

By Justin
Rated 5 out of 5
Date: 2022-05-10

Both the photo and the video quality are second to none. Using this camera for outdoor video adventures and for still photography of life (people and animals). Love being able to zoom into a 6k photo taken from a respectable distance and still see a dog's whiskers or a man's whiskers on his face. Just outstanding! @EaglesOverlanding

Love this camera. Thanks B&H!

By Madeline
Rated 5 out of 5
Date: 2022-04-26

An amazing camera for photo and video. Great purchase.

Thanks

By Hani
Rated 5 out of 5
Date: 2022-06-27

It's very good Camra

Great Camera with good features

By JaffrinSetsu
Rated 4 out of 5
Date: 2022-06-02

I have been using my Sony A7III for about a 18 months and it does everything I ask it to except Realtime tracking and 10bit 4:2:2 recording. The full frame sensor and IBIS prove their worth is low light and run and gun shooting. Paired with modern auto focus lenses, it is hard to miss your shot. Paired with an almost limitless number of vintage lenses through adapters, this beast is full of endless combinations and possibilities. The A7III could benefit with the upgraded menu system seen in newer models. My unit decided to stop outputting to HDMI roughly 1 month after the warranty lapsed and is likely to cost 1/3 of the camera cost to repair it! Luckily I do not often use an external monitor since it disables subject tracking. Overall I love the A7III and would recommend it to anyone looking for a new camera.

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