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Sony a7S III Mirrorless Camera

BH #SOA7S3 • MFR #ILCE7SM3/B
Sony a7S III Mirrorless Camera
Key Features
  • 12MP Full-Frame Exmor R BSI CMOS Sensor
  • UHD 4K 120p Video, 10-Bit 4:2:2 Internal
  • 16-Bit Raw Output, HLG & S-Cinetone
  • 759-Point Fast Hybrid AF
Optimized video, optimized sensitivity, optimized speed, the Sony a7S III raises the bar for what a full-frame mirrorless camera is capable of. A revised 12.1MP Exmor R BSI CMOS sensor and updated BIONZ XR image processor offer faster performance, improved noise reduction, and a wider dynamic range, along with UHD 4K 120p video recording and internal 10-bit 4:2:2 sampling.
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Sony A7S III Overview

  • 1Description
  • 2For Visual Trailblazers
  • 312.1MP Exmor RS BSI CMOS Sensor and BIONZ XR Processor
  • 4Video Recording
  • 5Autofocus and Image Stabilization
  • 6Body Design and Connectivity
For Visual Trailblazers
Optimized video, optimized sensitivity, optimized speed, the Sony a7S III raises the bar for what a full-frame mirrorless camera is capable of. A revised 12.1MP Exmor R BSI CMOS sensor and updated BIONZ XR image processor offer faster performance, improved noise reduction, and a wider dynamic range, along with UHD 4K 120p video recording and internal 10-bit 4:2:2 sampling.
12.1MP Exmor RS BSI CMOS Sensor and BIONZ XR Processor
A redesigned 12.1MP full-frame CMOS sensor now features a back-illuminated Exmor RS design in order to achieve improved clarity and reduced noise along with the expectedly impressive sensitivity, from ISO 80-102400 with an extended ISO 40-409600 range. The updated sensor design also yields 2x faster readout speeds than previous generations and, when coupled with the revised BIONZ XR image processor, greatly reduces rolling shutter by 3x and up to 8x faster processing and overall camera handling. The sensor and processor combination also helps to achieve a wide dynamic range, of up to approximately 14 stops for stills and 15 stops for video, and 10 fps continuous shooting for up to 1000 uncompressed raw files for stills.
Video Recording
UHD 4K 120p Video, 10-Bit 4:2:2 Internal Recording
  • UHD 4K recording is possible with frame rates up to 120p, using full 1:1 pixel readout without binning. Internal 10-bit 4:2:2 sampling is also possible in all recording modes and, if recording externally via the full-size HDMI A port, 16-bit raw output is also possible for even greater tonal reproduction and post-production flexibility.
  • Two codecs have also been developed: XAVC HS, which uses HEVC/H.265 encoding to retain more detail at smaller bitrates, and XAVC S-I, which is an intraframe codec for consistent performance and quality at bitrates up to 600 Mb/s.
Recording Flexibility
  • The high-speed, 120 fps recording enables 4x and 5x slow-motion movie recording with the frame rate playback set to either 30p or 24p or, if moving down to Full HD resolution, an effective 240p frame rate is also available for even greater motion control.
  • Suiting long-form recording, the a7S III does not have any recording time limits to allow for unlimited clip lengths. The camera's physical design also features an improved heat-dissipating structure to promote longer possible recording times, up to an approximate 60-minute recording time at 4K60p.
Advanced Color Control
  • S-Cinetone can be used to deliver distinct colors and healthy-looking skin tone rendering that matches the FX9 and FX6 cameras and is based on technology from the professional Cinema Line cameras, such as the VENICE. This color profile offers natural mid-tones, soft colors, and especially well-controlled highlights.
  • Affording extensive customizable color and gamma controls, the you can adjust the gamma, black level, knee, color level, and more. Also, users 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.
Autofocus and Image Stabilization
Fast Hybrid AF System
Covering 92% of the image area, a Fast Hybrid AF system incorporates 759 phase-detection points along with 425 contrast-detection areas for quick and precise focusing in a variety of lighting conditions with sensitivity down to -6 EV. This focusing system is available for use in all recording modes, to benefit both video and stills applications. Additionally, it is able to lock onto subjects quickly and can use Real-time Tracking for AI-based tracking on moving subjects or touch tracking for manual selection of the subject. Real-time Eye AF, suitable for both humans and animals, also ensures critical sharpness when shooting portraits. Helping to fine-tune how the focusing system performs, seven-step AF transition speed and five-step AF subject shift sensitivity controls let you refine how quickly focus shifts from point to point and how smoothly focusing shifts occur.
5-Axis SteadyShot INSIDE Image Stabilization
The a7S III incorporates an enhanced 5.5-stop effective 5-axis SteadyShot INSIDE image stabilization system, which 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.

Additionally, specifically for video, there is also an Active IS mode that adds even more precise stabilization methods for even smoother footage straight out of camera.
Body Design and Connectivity
Tru-Finder EVF and Vari-Angle Touchscreen LCD
  • An impressive QXGA OLED Tru-Finder EVF features a high 9.44m-dot resolution and 0.9x magnification for exceptionally bright, clear, and detailed eye-level viewing. This viewfinder has a dedicated 120 fps High Quality setting for smooth motion rendering and the finder's physical design has a long 25mm eye point, 41° field of view, and features a fluorine coating on the outermost viewfinder element to benefit cleaning.
  • A first for a7-series cameras, a side-opening 3.0" 1.44m-dot vari-angle articulating screen benefits working from high and low angles as well as a front-facing position for vlogging or other self-recording needs. This LCD is a touchscreen, too, for intuitive shooting control and menu navigation.
  • Redesigned menu structure is more intuitive and complements having different workflows and settings selections for movie recording and stills shooting. The menu system also works in conjunction with the touchscreen design of the rear LCD.
Versatile and Durable Design
  • Dual memory card slots both accept either CFexpress Type A or SD-type memory cards. The dual slot design allows for flexible file saving and handling and can be configured to partition file types or can be used for overflow recording. Additionally, both of the card slots are rated to support UHS-II memory cards for faster transfer speeds.
  • 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.
  • Extensive weather-sealing, including enhanced sealing around the battery cover, terminal cover, and chassis joints, has been employed to resist dust and moisture for reliable operation in harsh weather conditions.
  • Accepts the high-capacity NP-FZ100 rechargeable lithium-ion battery, which provides approximately 510 shots/80 minutes of recording per charge when using the viewfinder or 600 shots/95 minutes of recording per charge when using the rear LCD.
Ports and Connectivity
  • Full-size HDMI A port offers a more reliable connection when working with external recorders.
  • A USB 3.2 Gen 1 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 or powered from the host power source while connected.
  • Both 3.5mm headphone and external microphone ports facilitate greater control over audio recording.
  • Multi Interface Shoe supports working with the optional ECM-B1M Shotgun Microphone or XLR-K3M XLR Adapter Kit, which provide improved, clear audio recording sound by sending a digital audio signal to the camera, opposed to an analog signal.
  • Built-in Wi-Fi enables the remote camera control and instant sharing of imagery to mobile devices for direct sharing online, and support for both 2.4 and 5 GHz bands also enables wireless tethered shooting support. This connectivity also provides remote camera control
  • USB Type-C port can be paired with an optional Ethernet wired LAN adapter to provide 1000BASE-T connectivity, wired remote shooting, or FTP transferring.

Sony A7S III Specs

Imaging
Lens MountSony E
Sensor ResolutionActual: 12.9 Megapixel
Effective: 12.1 Megapixel (4240 x 2832)
Sensor Type35.6 x 23.8 mm (Full-Frame) CMOS
Crop FactorNone
Image StabilizationSensor-Shift, 5-Axis
Built-In ND FilterNone
Capture TypeStills & Video
Exposure Control
Shutter TypeElectronic Shutter, Mechanical Focal Plane Shutter
Shutter Speed1/8000 to 30 Second
Bulb/Time ModeBulb Mode
ISO SensitivityPhoto
80 to 102,400 (Extended: 40 to 409,600)
Video
80 to 102,400 (Extended: 80 to 409,600)
Metering MethodCenter-Weighted Average, Highlight Weighted, Multiple, Spot
Exposure ModesAperture Priority, Manual, Program, Shutter Priority
Exposure Compensation-5 to +5 EV (1/3 EV Steps)
Metering Range-3 to 20 EV
White Balance2500 to 9900K
Presets: Auto, Cloudy, Custom, Daylight, Flash, Fluorescent, Incandescent, Shade, Underwater
Continuous ShootingUp to 10 fps at 12.1 MP for up to 1000 Frames (Raw) / 1000 Frames (JPEG)
Up to 8 fps at 12.1 MP
Up to 6 fps at 12.1 MP
Up to 3 fps at 12.1 MP
Interval RecordingYes
Self-Timer2/5/10-Second Delay
Still Image Capture
Image Sizes3:2
11 MP (3776 x 2832)
4.6 MP (2464 x 1848)
2.7 MP (1888 x 1416)
1.1 MP (1232 x 920)
8 MP (2832 x 2832)
3.4 MP (1840 x 1840)
2 MP (1408 x 1408)
0.8 MP (912 x 912)
10 MP (4240 x 2384)
4.3 MP (2768 x 1560)
2.6 MP (2128 x 1200)
4.3 MP (2768 x 1560)
1.1 MP (2128 x 1416)
12 MP (4240 x 2832)
5.1 MP (2768 x 1848)
3 MP (2128 x 1416)
5.1 MP (2768 x 1848)
1.3 MP (1376 x 920)
Aspect Ratio1:1, 3:2, 4:3, 16:9
Image File FormatHEIF, JPEG, Raw
Bit Depth14-Bit
Video Capture
Internal Recording ModesH.265/XAVC HS 4:2:2 10-Bit
UHD 4K (3840 x 2160) at 23.98/50/59.94/100/119.88 fps [50 to 280 Mb/s]
H.265/XAVC HS 4:2:0 10-Bit
UHD 4K (3840 x 2160) at 23.98/50/59.94/100/119.88 fps [30 to 200 Mb/s]
H.264/XAVC S-I 4:2:2 10-Bit
UHD 4K (3840 x 2160) at 23.98/25/29.97/50/59.94 fps [240 to 600 Mb/s]
1920 x 1080p at 23.98/25/29.97/50/59.94 fps [89 to 222 Mb/s]
H.264/XAVC S 4:2:2 10-Bit
UHD 4K (3840 x 2160) at 23.98/25/29.97/50/59.94/100/119.88 fps [100 to 280 Mb/s]
1920 x 1080p at 23.98/25/29.97/50/59.94 fps [50 Mb/s]
H.264/XAVC S 4:2:0 8-Bit
UHD 4K (3840 x 2160) at 23.98/25/29.97/50/59.94/100/119.88 fps [60 to 200 Mb/s]
1920 x 1080p at 23.98/25/29.97/50/59.94/100/119.88/200/239.76 fps [16 to 100 Mb/s]
External Recording ModesRaw 16-Bit via HDMI
4264 x 2408 up to 59.94 fps
4:2:2 10-Bit via HDMI
UHD 4K (3840 x 2160) at 23.98/25/29.97/50/59.94 fps
1920 x 1080p at 23.98/50/59.94 fps
1920 x 1080i at 50/59.94 fps
4:2:0 8-Bit via HDMI
UHD 4K (3840 x 2160) at 23.98/25/29.97/50/59.94 fps
1920 x 1080p at 23.98/50/59.94 fps
1920 x 1080i at 50/59.94 fps
Sensor Crop ModesSuper35 / APS-C
Fast-/Slow-Motion SupportYes
Gamma CurveSony S-Log 2, Sony S-Log 3
Recording LimitNone
Broadcast OutputNTSC/PAL
IP StreamingNone
Built-In Microphone TypeStereo
Audio RecordingXAVC: 2-Channel 16-Bit 48 kHz LPCM Audio
XAVC: 2-Channel 24-Bit 48 kHz LPCM Audio
XAVC: 4-Channel 24-Bit 48 kHz LPCM Audio
MP4: 2-Channel AAC Audio
Interface
Media/Memory Card SlotDual Slot: CFexpress Type A / SD (UHS-II)
Video I/O1 x HDMI Output
Audio I/O1 x 1/8" / 3.5 mm TRS Stereo Microphone Input
1 x 1/8" / 3.5 mm TRS Stereo Headphone Output
Power I/O1 x USB-C Input
Other I/O1 x USB-C (Gigabit Ethernet, USB 3.2 / 3.1 Gen 1) Data Input/Output (Shared with Power Input)
1 x Sony Multi/Micro-USB Control
WirelessWi-Fi, Bluetooth
App CompatibleYes
Global Positioning (GPS, GLONASS, etc.)None
Monitor
Size3.0"
Resolution1,440,000 Dot
Display TypeArticulating Touchscreen LCD
Viewfinder
TypeBuilt-In Electronic (OLED)
Size0.64"
Resolution9,437,184 Dot
Eye Point25 mm
Coverage100%
MagnificationApprox. 0.9x
Diopter Adjustment-4 to +3
Focus
Focus TypeAuto and Manual Focus
Focus ModeContinuous-Servo AF, Direct Manual Focus, Manual Focus, Single-Servo AF
Autofocus PointsPhase Detection: 759
Contrast Detection: 425
Autofocus Sensitivity-6 to +20 EV
Flash
Built-In FlashNo
Flash ModesAuto, Fill Flash, Hi-Speed Sync, Off, Rear Sync, Red-Eye Reduction, Slow Sync
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 (Approx. 600 Shots)
Tripod Mounting Thread1 x 1/4"-20 Female
Accessory Mount1 x Intelligent Hot Shoe
Dimensions (W x H x D)5.07 x 3.81 x 2.74" / 128.9 x 96.9 x 69.7 mm
Weight1.35 lb / 614 g (Body Only)
Packaging Info
Package Weight3.195 lb
Box Dimensions (LxWxH)10.5 x 6.1 x 5.5"

Sony A7S III Reviews

Seriously, from a professional.

By Jamie
Rated 5 out of 5
Date: 2022-11-07

Honestly, When I first started (2004) I wasn't a Sony fan. Then Canon took the cake and inadvertently took digital filmmaking by accident with the 5D. And they held that candle for quite some time with their many iterations of the cinema line. Listen, I've had them all. Canon 5D, Canon 5D Mk2, Canon 7D, Canon C100, Canon C300, Canon C200, Red Epic Dragon, Sony FS700, Sony A7S, Sony a7Sii, Panasonic GH2, Panasonic GH3 (one of my favorites), Sony FS7, and the money pit continues on! The Sony A7Siii bridges the gap to enable you to meet most cinema quality standards, stay compact, great autofocus, amazing dynamic range, good battery life for the size, Amazing EVF (don't get it on the FX3) Great image stabilization, It's literally the most perfect camera I've ever laid my hands on. BTW, We're no slouches over here. We've delivered high-end Nationwide broadcast spots with that camera and a sigma lens. Just saying. It's the first camera that frees up creativity if you know what you're doing. Instead of having multiple hands to run a single camera. This camera will be hard to beat for years to come IMO. Well, the A1 is pretty sweet but a little overkill (and can overheat).

Amazing camera for video

By Nam
Rated 5 out of 5
Date: 2022-10-06

Bought this monster a couple week ago to shoot wedding. It has amazing low light capability. The auto focus is also top notch that help me capture many moments that I normally would miss. The camera body build feels solid. Initially, I was hesitated about the price, but the end product is just amazing and it totally worth it. Side note, if B&H can choose a different carrier than FedEx, that would be awesome, they delivered my camera 3 days late and I almost miss shooting an event because of it.

Still the best at this price.

By kai
Rated 5 out of 5
Date: 2022-09-29

I have a7IV before purchase this one. I would say just for overall video quality, they are neck to neck. Both produce high quality image. The a7sIII win at 4k 60p at no crop and 4k 120p at 1.1x crop.Both looks just as detail as 4k 24p, so no complain at all. I do miss the crop mode from a7IV at 4k 24p. But I know if they make a7sIII a 24mp sensor, we will have a lot worse rolling shutter and likely a heavy crop in 4k 120p. I dislike that you can not assign video format and video quality to quick menu which a7IV can do it. That is not convenient. I thought that is a easy firmware fix but no they never address this. Still one of the best camera for video under $4000.

Love it

By Hansel
Rated 5 out of 5
Date: 2022-09-22

you already know you gonna love it if you plan to buy it.

Great choice

By Joshua
Rated 5 out of 5
Date: 2022-09-14

Super sharp, clear, and it doesn't overheat. Best camera in the world.

AF is out of this world

By Trevor
Rated 5 out of 5
Date: 2022-09-14

I'm coming from Panasonic GH5, and the colors in Cine 11 ppp are matching very nicely. The AF is so good, but scared of relying on it too much....

Nice camera

By Romany
Rated 5 out of 5
Date: 2022-11-02

Nice

Incredible low light performance

By Patrick
Rated 5 out of 5
Date: 2022-10-19

It may not have the megapixels, but it makes up for it in light gathering capability. Incredible low light, low noise performance. It can see things my eyes can't. Amazing.

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Why is it continuous stills are limited to 10 fps if the camera is capable to record 4K 10-Bit Intra @600 Mbps?
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Image files are still larger than video files. They record the full 12 Megapixels of the sensor as opposed to the 8 Megapixels recorded during video. I cannot categorically say this is the reason, but I would guess it has something to do with it.
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Date published: 2020-08-26

Does the A7siii has 'syncro scan' feature? Where ...

Does the A7siii has 'syncro scan' feature? Where you can dial out LED flicker from various lights. Haven't found a mentione of it on Google or YouTube yet.
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Unfortunately this is a function that is only in the Sony A1 at this point. The A7S3 does not have this function.
Answered by: Zach L
Date published: 2021-04-26

What does the B in the model number stand for? ...

What does the B in the model number stand for? Grey market?
Asked by: Hans
This SKU is actually a Sony US SKU, so this is not a gray-market or imported item. In this case, the "b" would probably stand for "body", whereas in some of their other SKUs, it might denote coming with a lens. For example, A7SIII body-only ILCE7SM3/B: https://bit.ly/3a7D1Ph (Sony's page with the SKU) versus the A7C: https://bit.ly/3neZLjX ILCE7C (body-only) ILCE7CL (with lens)
Answered by: Jeremy
Date published: 2020-12-13

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Have the lens adapters improved for the Sony A7S III camera? I have three Canon EF lenses I'd love to use with this camera.
Asked by: Larry
Not for run and gun filming if you need auto focus. If you're pulling focus...yes you'll be fine.
Answered by: Michael
Date published: 2022-07-04

Is there a warning message after changing regions ...

Is there a warning message after changing regions ie PAL to NTSC?
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Answered by: Shalom
Date published: 2020-08-25

Will the ninja V support the 16 bit raw output ...

Will the ninja V support the 16 bit raw output mentioned in this camera?
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Date published: 2020-07-28

Do OSS lenses enhance the stabilization with IBIS ...

Do OSS lenses enhance the stabilization with IBIS or does the IBIS make these lenses irrelevant?
Asked by: Mark
The IBIS and the OSS work together to optimize the stabilization, Although the IBIS does do the primary work to stabilize.
Answered by: Rob
Date published: 2020-08-20

My Sony level II 128gB V60 277mb/sec cards won’t ...

My Sony level II 128gB V60 277mb/sec cards won’t work in my A7siii. My Sandisk Pro level I cards work but won’t do 10bit. So this means you only can use the new express A cards?
Asked by: Rod
Just to be clear, my Sony UHS II cards do not work in this camera. I believe it is the exact card 12 down on the submitted B&H shopping page. If I format it in my a9 (where it does work), it still does not work in the new camera. It is not just that one. I have four of them. You cannot format the card in the new camera. The entire screen is immediately blocked with the message. Until someone can prove to me otherwise, you have to use a CF card, or record externally.
Answered by: Rod
Date published: 2020-09-29
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