Sony α7S III

A7S III 35mm Full-Frame Camera

Full Frame Mirrorless Camera 4K 120P and 15-stop wide dynamic range

The new Sony A7S III takes the S series to a whole new level of full-frame movie expression, spectacular new speed combined with supreme sensitivity and ultra-low noise to put previously impossible 4K movie shoots on the menu, with high dynamic range, breathtaking focusing, and extra-strong image stabilisation. The Alpha 7S III offers a huge range of improvements to movie makers.

Large pixels deliver high sensitivity and low noise

The new full-frame 12.1-megapixel back-illuminated Exmor RTM CMOS image sensor packs major innovations in light gathering, wiring and output optimisation. These deliver blazing doubled readout speeds, superb image quality throughout the whole sensitivity range, 15-stop wide dynamic range, and reduced rolling shutter, with the sensor also providing focal-plane phase-detection AF.

Up to 8x more powerful BIONZ XRTM image processor

Along with the new sensor and its unprecedented speed, the BIONZ XR image processing engine has also been newly developed and packs up to 8x more processing power. With a future-oriented architecture, it delivers high quality images faster for superlative still and video expression, as well as dramatically improved camera interface responsiveness.

Stunning AF performance even at 4K 120p

The A7S III camera packs a new Exmor R full-frame image sensor and revolutionary BIONZ XR image processing engine delivers always-active pinpoint AF for astonishing detail in both space and time, and stunning 4K movies even at 120 frames per second or in slow motion. With the resolution and depth of field only possible from a full-frame sensor, the results are spectacular.

10-bit 4:2:2 recording

Record right on the camera with the amazing richness of 10-bit depth and 4:2:2 colour sampling, for far greater flexibility in image grading, post-processing and compositing.

All-Intra encoding available

As well as Long GOP, All-Intra encoding is now provided. This encodes every frame independently at bitrates up to 600Mbps, to capture complex motions more accurately for recording on either internal or external media, and allow more efficient editing workflows.

[1] All-Intra (All-I) [2] Long GoP [3] Group of Pictures

Superior quality and smaller files with XAVC HS

The new XAVC HS recording format uses HEVC/H.265 encoding to achieve twice the compression efficiency of AVC/H.264 encoding, for superior image quality and smaller file sizes.

Our renowned sensitivity delivers expanded ISO 409600

The renowned sensitivity of the series scales new heights, with an expanded ISO range for movies from 80 to a remarkable 409600 (standard range 80 – 102400). With advanced light-gathering and output optimisation, the 12.1-megapixel full-frame sensor achieves low noise throughout the sensitivity range, and can capture usable images in near total darkness.

S-Log3 gamma, S-Gamut3.Cine gamut as on pro camcorders

The S-Log3 gamma curve and S-Gamut3.Cine colour gamut, shared with pro camcorders, provide wider dynamic range and easier colour matching for smoother post-production workflows.HLG (Hybrid Log-Gamma)

HLG (Hybrid Log Gamma)

simplifies HDR production, producing footage for HLG-compatible BRAVIA TVs on the camera with no complex post-production, and smooth gradations from the 10-bit colour depth.

[1] High flexibility to fine-tune images as desired (colour grading required)

[2] Instant high-quality image (colour grading not required)

Image quality improvements

The new BIONZ XR image processing engine delivers improvements in colour reproduction, stability against different light sources, natural tonal gradation and roll-off, and reduced rolling shutter.

16-bit RAW HDMI output

For demanding post-production workflows, 16-bit RAW output

is available via HDMI connection to compatible external recorders while XAVC HS 4K, XAVC S 4K, or XAVC S-I 4K, and proxy files are simultaneously captured in-camera.

Efficient editing through proxy recording

While recording high-bitrate 4K movies, HD proxies (in 8 or 10-bit depth) can be generated in-camera. Editing the smaller proxy files reduces computer load and speeds up workflow prior to final 4K delivery.

Fast Hybrid AF for accuracy and tenacity

The wide-area AF uses intelligent tracking and on-sensor phase-detection covering most of the frame. The result is that every bit of supremely accurate and tenacious AF performance is extracted in combination with high-quality E-mount lenses, even when shooting moving subjects at shallow depths-of-field in 4K and at 120p frame rates,

Powerful focus control for solo shooters

With AF Transition Speed selectable over 7 levels, and AF Subject Shift Sensitivity over 5 levels, you can better convey your creative intentions when switching subjects or, for example, rack focusing. A simple touch can temporarily activate AF even during manual focus operation.

Real-time Eye AF for movies

Real-time Eye AF uses AI to ensure pinpoint focusing precision for eyes, with performance now improved by 30% on profile or partially-obscured faces. Tenacious eye tracking lets you concentrate on composition even with a shallow focus depth.

Real-time Tracking with intuitive touch operation

Real-time Tracking analyses subject colour, pattern, depth, and face information to track the subject. Touch Tracking intuitively and automatically tracks a subject touched on the LCD screen.

In-body 5-axis image stabilisation

A highly accurate image stabilisation unit and gyro-sensor are provided, delivering 5-axis optical image stabilisation.

[1] Yaw [2] Roll [3] Pitch

Active Mode for hand-held shooting

The new Active Mode provides increased stabilisation for movie shooting. To preserve image quality, the BIONZ XR processor accurately measures camera shake and compensates optically. This makes stable video possible even when shooting hand-held where space restraints prevent gimbal use, while walking, and at 4K resolution.

Digital audio interface for clear sound recording

A digital audio interface added to the Multi Interface (MI) Shoe allows direct 24-bit input. Available settings are 48kHz/16-bit 2-ch, and by using the optional XLR-K3M adaptor kit, 48kHz/24-bit 2-ch and 48kHz/24-bit 4-ch.

Unique heat dissipation, for dependable recording

A unique Sony Σ (sigma) shaped graphite heatsink is built into the image stabilisation unit. This dissipates heat 5x more effectively

for extended recording time, without interfering with image stabilisation.

Movie-shooting comfort

Responding to feedback from professional users, the MOVIE button has been moved to the top face for improved operability in any shooting position. Mode dial ordering and speed of switching have also been improved.

High ISO sensitivity

With an amazingly wide standard ISO range of 80-102400 (expandable to 40-409600 for stills), the A7S III camera offers incredible creative opportunities. The newly-developed image sensor and image processing algorithms produce even cleaner images and more natural textures than the previous α7S II model, even when shooting in near total darkness.

Fast Hybrid AF for stills

The Fast Hybrid AF system combines speed and precision. With 759 focal plane phase-detection sensors and 425 contrast-detection points distributed across most of the image area, the A7S III quickly finds and tracks your subject throughout the frame.

Outstanding continuous shooting performance

Use your choice of mechanical or electronic shutter for continuous burst shooting, with AF/AE tracking, at up to 10fps. Capture decisive moments with over 1000 frames of continuous uncompressed RAW shooting possible.

Highly-sensitive AF for low-light focusing

AF algorithm advances have allowed the α7S III to achieve autofocus in lighting conditions as dim as EV-6, where subjects are barely even visible with the naked eye.

Still-image quality advances through new sensor and engine

The newly-developed image sensor and image processing engine deliver improvements in colour reproduction, particularly of skin tones, and texture depiction in still images.

New HEIF format and HLG image capture modes

The HEIF image file format is supported, offering better image quality and greater compression efficiency than JPEG, plus 10-bit colour. High Dynamic Range still images can also be captured in HLG mode for viewing on compatible TVs.

Two CFexpress Type A-compatible media slots

Both card slots support both ultra-fast CFexpress Type A cards, allowing high-bitrate recording and fast buffer clearance, and SDXC UHS-II cards. Parallel and Relay recording are also available.

Vari-angle LCD monitor for comfortable movie shooting

The variable-angle 1.44 million-dot 3.0-type touch screen features a side-open design, for flexible positioning and improved visibility when mounting on gimbals or rigs.

9.44 million-dot high-definition electronic viewfinder

The new EVF offers resolution, contrast and colour unlike anything in its class. It also offers world-leading 0.9x finder magnification, a 41° diagonal field of view, and a 25mm high eyepoint.

Advanced operability

The menu structure has been redesigned to reflect feedback from both pro photographers and videographers. Camera settings are now more intuitive and the camera is more responsive to setting changes.

New menu structure

Based on requests from our most demanding professional users, major improvements have been made to the menu structure, for improved at-a-glance readability and reduced menu navigation.

Intuitive touch operation

The menu screen can be operated by touch, while the playback screen features swiping, and pinch-to-zoom. Operability of the touch functions when shooting has also been improved.

5GHz Wi-Fi compatible

As well as 2.4GHz, 5GHz Wi-Fi® connectivity is provided for remote operation, wireless preview, and faster and more stable data transfer of both still images and video.

Wired LAN connectivity

For complex, interference-prone environments, or higher bandwidth needs, 1000BASE-T wired LAN connectivity is available by connecting a compatible USB-Ethernet adaptor cable to the camera’s USB Type C® port.

Remote preview and shooting

Either wired or wireless remote shooting is available from a PC, or from a mobile device with Imaging Edge MobileTM installed, for more efficient workflows and shooting in challenging environments.

160GB CFexpress Type A TOUGH Memory Cards

Extremely fast, reliable and compact for professionals who require the highest performance in the most extreme conditions. The CEA-G80T and CEA-G160G memory cards protect recordings and boost workflow for photographers, videographers and enthusiasts.

Ultra-high-speed storage for innovative creators

The new CFexpress Type A standard was developed to provide compact cameras with the ultra-high-speed performance required for cutting-edge video creation. It maximises the capabilities of α-series cameras and the latest image-processing engines. For creators seeking higher levels of performance and expression, this compact card is a must-have.

A new generation of performance

CFexpress Type A – A new standard for compact storage

Super-charge your professional video and photography workflows with Sony’s CFexpress Type A memory cards – ideal for advanced cameras like the α7S III. The world’s first1 CFexpress Type A cards, they deliver extraordinary speed, around twice that of the best SDXC cards, in a similarly compact body. With write speeds up to 700MB/s2 and professional-level durability, Sony CFexpress Type A cards open up a wide range of new imaging possibilities.

Extraordinary response speed

Dramatically expand your photographic possibilities, with uncompressed continuous RAW shooting for fast-moving action such as motor sports and wildlife. Writing speeds of up to 700MB/s2 far outperform even the best SDXC cards, ensuring ultra-fast camera buffer clearance for responsive continuous shooting.

Dependable videography

Sony CFexpress Type A cards are optimised for continuous, high-bandwidth data writing, making them ideal for professional high-bitrate video recording, such as 4K 120p capture on cameras like the α7S III, where dependability is critical. For extra reassurance and video recording stability they also carry the VPG (Video Performance Guarantee) 400.

Ultra-efficient workflow

Dramatically accelerate your workflow with the optimised MRW-G2 card reader and ultra-fast read speeds of up to 800MB/s2 for data transfer and backup. Work seamlessly with high-resolution photos and high-bitrate video, to turn projects around at the speed of your imagination.

MRW-G2 CFexpress Type A/SD Memory Card Reader

Optimised for CFexpress Type A cards from Sony

Get the most from CFexpress Type A and SD memory cards from Sony with this high speed card reader. The compact design and USB connectivity allow fast transfer and backups at any location.

Supports CFexpress Type A and SD UHS-II/UHS-I memory cards

Just one card reader is all you need to transfer data from CFexpress Type A memory cards and SD memory cards.

Faster transfers via USB Type-C®

With USB 3.2 Gen 2 support, the MRW-G2 supports the SuperSpeed 10Gbps transfer protocol via both USB Type-C® (recommended) and Type-A connections. High performance cables are supplied for both connection types, for wide compatibility across devices.

Easy to use

To help you work more comfortably, the shape of the recessed card slot makes it more difficult to accidentally pop out the card, and an access LED (lit while the card is inserted, flickering while accessing), have been incorporated.

Compact and easy to carry, and designed for more efficient workflows

The MRW-G2’s slim and lightweight design allows it to fit into any pocket or bag, making it ideal for working with high-resolution files on the go. Just a single cable connection is required for both high-speed data transfer and power supply.

Product Specification

Lens Mount E-mount

Type 35mm Full Frame Exmor R CMOS Sensor

Number of Pixels (Effective) Approx. 12.1 megapixels

Number of Pixels (Total) Approx. 12.9 megapixels

Anti-Dust System Charge protection coating on optical filter and image sensor shift mechanism

Recording (Still Images)

Recording Format JPEG, HEIF, RAW

Image Size (Pixels) [3:2] 35mm full frame L: 4240 x 2832 (12M), M: 2768 x 1848 (5.1M), S: 2128 x 1416 (3.0M)

APS-C L: 2768 x 1848 (5.1M), M: 2128 x 1416 (3.0M), S: 1376 x 920 (1.3M)

Image Quality Modes RAW (Compressed/Uncompressed), JPEG (Extra Fine, Fine, Standard), HEIF (4:2:0, 4:2:2, Extra Fine, Fine, Standard)

RAW Output Yes

Picture Profile Yes (Off / PP1-PP10) Parameters: Black level, Gamma (Movie, Still, Cine1-4, ITU709, ITU709 [800%], S-Log2, S-Log3, HLG, HLG1-3), Black Gamma, Knee, Color Mode, Saturation, Color Phase, Color Depth, Detail, Copy, Reset

Dynamic Range Functions Off, Dynamic Range Optimizer

Colour Space sRGB standard (with sYCC gamut) and Adobe RGB standard compatible with TRILUMINOS Color. BT.2020 Standard

Recording (Movie)

Recording Format XAVC S, XAVC HS

Video Compression XAVC S: MPEG-4 AVC/H.264, XAVC HS: MPEG-H HEVC/H.265

Audio Recording Format XAVC S: LPCM 2ch,AVCHD: Dolby Digital (AC-3) 2ch, Dolby Digital Stereo Creator

Creative Style ST, PT, NT, VV, VV2, FL, IN, SH, BW, SE, Custom Look (1-6)

Picture Profile Yes (Off / PP1-PP10) Parameters: Black level, Gamma (Movie, Still, Cine1-4, ITU709, ITU709 [800%], S-Log2, S-Log3, HLG, HLG1-3), Black Gamma, Knee, Color Mode, Saturation, Color Phase, Color Depth, Detail, Copy, Reset

Image Size (Pixels), NTSC 3840 x 2160 (4:2:2, 10-bit), 120p (280Mbps), 60p (600, 200, 100Mbps), 30p, (300, 140Mbps), 24p (240, 100, 50Mbps)

3840 x 2160 (4:2:0, 10-bit), 120p (200Mbps), 60p (150, 75, 45Mbps), 24p (100, 50, 30Mbps)

3840 x 2160 (4:2:0, 8-bit), 120p (200Mbps), 60p (150Mbps), 30p (100, 60Mbps), 24p (100, 60Mbps)

1920 x 1080 (4:2:2, 10-bit), 60p (222, 50Mbps), 30p (111, 50Mbps), 24p (89, 50Mbps)

1920 x 1080 (4:2:0, 8-bit), 120p (100, 60Mbps), 60p (50, 25Mbps), 24p (50Mbps)

Image Size (Pixels), PAL 3840 x 2160 (4:2:2, 10-bit), 100p (280Mbps), 50p (500, 200, 100Mbps), 25p (250, 140Mbps)

3840 x 2160 (4:2:0, 10-bit), 100p (200Mbps), 50p (150, 75, 45Mbps), 25p (100, 50, 30Mbps)

3840 x 2160 (4:2:0, 8-bit), 100p (200Mbps), 50p (150Mbps), 25p (100, 60Mbps)

1920 x 1080 (4:2:2, 10-bit), 50p (185, 50Mbps), 25p (93, 50Mbps)

1920 x 1080 (4:2:0, 8-bit), 100p (100, 60Mbps), 50p (50, 25Mbps), 25p (50, 16Mbps)

Image Frame Rate NTSC mode: 1fps, 2fps, 4fps, 8fps, 15fps, 30fps, 60fps, 120fps, 240fps

PAL mode: 1fps, 2fps, 3fps, 6fps, 12fps, 25fps, 50fps, 100fps, 200fps

Movie Functions Audio Level Display, Audio Rec Level, PAL/NTSC Selector, Proxy Recording　(1920 x 1080 (Approx.9Mbps), 1280 x 720　(Approx.6Mbps)), TC/UB　(TC Preset/UB Preset/TC Format/TC Run/TC Make/UB Time Rec), Auto Slow Shutter,　REC Control, Clean HDMI Info.　(ON/OFF selectable), Gamma Disp. Assist

HDMI Output RAW Output

Media SD (UHS-I/II Comliant), CFexpress Type A Memory Card

Noise Reduction Long Exposure NR, High ISO NR

White Balance Auto, Daylight, Shade, Cloudy, Incandescent, Fluorescent, Flash, Underwater, Colour Temperature, Custom

Focus Sensor Exmor R Cmos Sensor

Focus Point 759 points (phase-detection AF)

Focus Sensitivity EV-6 to EV20 (Iso 100 Equivalent with F2.0 lens attached)

Focus Mode AF-A, AF-S, AF-C, Manual Focus

Focus Area Wide, zone, Center, Flexible Spot, Tracking

Metering Type 1200-zone evaluative metering

Metering Sensitivity EV-3 to EV20

Metering Mode Multi-segment, Center-weighted, Spot, Entire Screen, Highlight

Exposure Modes Auto, Programme, Aperture Priority, Shutter Priority, Manual, Movie

ISO Sensitivity 80-102400 (Expanded 40-409600), Auto 80-12800)

Viewfinder Type 1.6cm (0.64 type) Quad-XGA OLED Electronic Viewfinder

Viewfinder Resolution 9,437,184 dots

Field Coverage 100%

Magnification Approx. 0.90x

Dioptre Adjustment -4.0 to +3.0

LCD Type 7,5cm (3.0 type) Touch Panel TFT

LCD Resolution 1,440,000 Dots

Adjustable Angle Approx. 176 degrees

Focus Magnifier Full-Frame: 2.1, 4.1x, APS-C: 1.5, 3.0x

Shutter Type Mechanical Shutter, Electronic Shutter

Shutter Speed 1/8000 to 30sec, Bulb

Movies: 1/8000 to 1/4 up to 1/50 in Auto Mode

Flash Sync 1/250 sec

Electronic Front Curtain Yes

Silent Shooting Yes

Image Stabilisation Image Sensor – Shift Mechanism with 5-axis compensation

PC Interface Multi/Micro USB 5GBps (3.2 Compatible)

NFC NFC forum type 3 tag compatible

Wireless Lan Wi-Fi compatible (IEEE 802.11 a/b/g/n/ac 2.4Ghz and 5Ghz Band)

Bluetooth Bluetooth standard version 5.0

HD Output HDMI Connector Type A

HD Resolution Output 3840 x 2160: 60p, 50p, 30p, 25p, 24p

1920 x 1080: 60i, 50i

RAW 16-Bit 4264 x2408: 60p, 50p, 30p, 25p, 24p

Multi Interface Shoe Yes

Mic Terminal 3.5mm Stereo Minijack

Headphone Terminal 3.5mm Stereo Minijack

Built-in Microphone Yes, stereo

Battery Life Approx 510 Shots Viewfinder, Approx 600 Shots (LCD Monitor)

Approx. 80min Viewfinder, Approx. 95min (LCD Monitor)

Internal Battery Charge Yes, Available with USB Type-C Terminal

Weight Approx. 699g

Size Approx. 128.9 x 96.9 x 80.8mm (5 1/8 x 3 7/8 x 3 1/4″)

Operating Temperature 32-105 degrees F / 0-40 degrees C