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Alpha 7S III - Full-frame Mirrorless Interchangeable Lens Camera
High Sensitivity, 12.1MP, clean low-light images, up to ISO 409,600, 4k 120p / HD 240p
Offers

Product highlights
- 12.1MP*1 Exmor R sensor, optimized for 4K, sensitivity and speed
- New BIONZ XR processing engine delivers 8x more processing power*2
- Low noise images w/ ISO up to 409,600*3 and 15+stop dynamic range*4
- Up to 4K 120p*5 10-bit 4:2:2 and full pixel readout in all rec. modes
- Up to 4K 120p*5 in XAVC S (AVC), XAVC HS (HEVC) and XAVC S-I (All-I)
- 16-bit RAW movie output up to 4K 60p via HDMI Type-A connector*6
- Effective internal heat dissipation enables 1-hour 4K 60p recording*7
- Fast readout for high frame rates, faster AF, minimal rolling shutter
- No 29m 50s continuous recording limit for movie shooting
- 3” flip-out, vari-angle LCD monitor w/ touch menu and controls
Return policy
Bundle Items
Camera&Accessory
Alpha 7S III - Full-frame Mirrorless Interchangeable Lens Camera
High Sensitivity, 12.1MP, clean low-light images, up to ISO 409,600, 4k 120p / HD 240p
Vertical Grip for α9 II and α7R IV
Related Accessories
For visual trailblazers
With extreme full-frame movie performance including high sensitivity (expanded ISO up to 409600), 15-stop wide dynamic range, 4K 120p2, fast and dependable autofocusing, and extra-strong image stabilization, the α7S III again raises the bar for movie makers.
Expressive
possibilities
Sensitivity, speed and supreme imagery
The Alpha 7S III features a newly developed 12.1-megapixel1 Full-frame Backside-illuminated (BSI) Exmor R CMOS sensor that delivers sensitivity, speed and superior images and movie. It takes full advantage of the large pixels and BSI copper wiring structure to more than double the sensitivity and readout speed2. In addition, this new Exmor R sensor features Sony’s acclaimed fast hybrid autofocus with 759 phase detection AF points and 92% coverage. The high sensitivity also allows it to autofocus in light as low as EV-611.
New BIONZ XR processing engine delivers 8x more processing power2
A new BIONZ XR processing engine delivers 8x more processing power than previous models. It not only supports the high sensitivity and wide dynamic range that has become hallmarks of the “S” series, but also high-speed features such as real-time AF tracking and up to 10fps continuous shooting of more than 1000 RAW still images. 15
Low noise images w/ ISO up to 409,6003 and 15+stop dynamic range4
The Alpha 7S III builds on the legendary low-light performance synonymous with Sony’s ‘S’ series. The 12.1MP1 sensor is optimized for 4K with full-pixel readout and to make use of much larger individual pixels for maximum light gathering capabilities and low signal-to-noise ratio.
10-bit 4:2:2 video reaches new levels of realism
The α7S III can record 10-bit 4:2:2 video internally when using Long GOP or All Intra compression, making it possible to grade for fuller, more natural gradations while generally providing greater editing freedom. Maximum frame rate when recording full-frame 4K is 120p5.
Efficient MPEG-H HEVC/H.265 (XAVC HS™) coding
In addition to Sony’s common XAVC S™ (MPEG-4 AVC/H.264) codec found on current models, the α7S III adds XAVC HS format recording21 using the MPEG-H HEVC/H.265 codec for approximately twice the efficiency of XAVC S.
16-bit RAW output for movie
The α7S III is capable of 16-bit RAW output up to 4K 60p to an external device6 via HDMI, to answer the increasing demand for RAW recording for applications that demand the highest quality and post-production flexibility provided by RAW output.
Fast Hybrid AF in all modes
The α7S III incorporates Sony’s highly acclaimed Fast Hybrid AF in all modes for both still and movie shooting.
Effective heat dissipation
Heat buildup from processing large volumes of data when recording high-bitrate, high-resolution 4K 60p and 120p5 movie can plague other systems, but not the Alpha 7S III.
Workflow
efficiency
Two CFexpress Type A-compatible media slots
Dual card slots, both compatible with CFexpress Type A and SDXC/SDHC
Vari-angle LCD monitor for comfortable movie shooting
3” flip-out, vari-angle LCD monitor w/ touch menu and controls
9.44 million-dot18 high-definition electronic viewfinder
World’s first 9.44M8 dot 0.64” QXGA OLED eye-level viewfinder
Advanced AF transition and sensitivity settings2
The new Exmor R full-frame image sensor and revolutionary BIONZ XR image-processing engine deliver always-active pinpoint AF for astonishing detail in both space and time, and stunning 4K movies even at 120 frames per second2 or in slow motion. With the resolution and depth of field only possible from a full-frame sensor, the results are spectacular.

Superlative movie
performance
Digital Audio Interface for superior sound
The camera’s Multi Interface Shoe allows for MI shoe microphones and accessories to be attached and features a built-in Digital Audio Interface for superb audio quality.
High transfer speed USB Type-C® (USB 3.2) connector
A USB Type-C® connector that supports fast USB Type C® (SuperSpeed USB 5Gbps (USB 3.2)) data transfer is provided. This makes high-speed PC Remote (tethered) data transfer available for smooth handling of large image files. It also provides USB to high-speed wired LAN connectivity via an optional USB-Ether wired LAN adapter cable that provides direct connectivity to 1000BASE-T Ethernet networks for fast wired FTP data transfers.
Designed with the environment in mind
Sony is committed not only to offering products, services and content that deliver exciting experiences but also to working towards our goal of a zero environmental footprint throughout our business activities.
At a Glance
Maximum Photo Resolution and Frame Rates
12.1 MP up to 10 fps
Maximum Movie Resolution and Frame Rates
4K / 120p HD / 240p
Maximum ISO Sensitivity
Photo: ISO 80-102400 (expandable: ISO 40-409600) Movie: ISO 80-102400 (expandable: ISO 80-409600)
Drive
Self-timer
10-sec. delay / 5-s delay / 2-s delay / Continuous self-time / Bracketing self-timer
Continuous Drive Speed (approx. max.)
Continuous shooting: Hi+: 10 fps, Hi: 8 fps, Mid: 6 fps, Lo: 3 fps
DRIVE MODES
Single Shooting, Continuous shooting (Hi+/Hi/Mid/Lo selectable), Self-timer, Self-timer (Cont.), Bracket: Single, Bracket: Cont., White Balance bracket, DRO bracket
No. of recordable frames (approx.)
JPEG Extra fine L: over 1000 frames, JPEG Fine L: over 1000 frames, JPEG Standard L: over 1000 frames, RAW: over 1000 frames, RAW & JPG: over 1000 frames, RAW (Uncompressed): over 1000 frames, RAW (Uncompressed) & JPG: over 1000 frames
Pixel Shift Multi Shooting
-
Exposure
Exposure Compensation
+/- 5.0EV (1/3 EV, 1/2 EV steps selectable) (with exposure compensation dial: +/- 3EV [1/3 EV steps])
AE Lock
Locked when shutter button is pressed halfway. Available with AE lock button. (On/Off/Auto)
Anti-Flicker Shoot.
Yes
Exposure Bracketing
Bracket: Cont., Bracket: Single, 3/5/9 frames selectable. (Ambient light, Flash light)
EXPOSURE MODES
AUTO(iAuto), Programmed AE (P), Aperture priority (A), Shutter-speed priority (S), Manual (M), Movie (Programmed AE (P) / Aperture priority (A) / Shutter-speed priority (S) / Manual (M) / Flexible Exp. Mode), Slow & Quick Motion (Programmed AE (P) / Aperture priority (A) / Shutter-speed priority (S) / Manual (M) / Flexible Exp. Mode)
ISO Sensitivity (Recommended Exposure Index)
Still images: ISO 80–102400 (ISO numbers up from ISO 40 to ISO 409600 can be set as expanded ISO range.), Movies: ISO 80–102400 equivalent (ISO numbers up to ISO 409600 can be set as expanded ISO range.)
Metering Mode
Multi-segment, Center-weighted, Spot, Spot Standard/Large, Entire Screen Avg., Highlight
METERING SENSITIVITY
EV -3 to EV 20 (at ISO100 equivalent with F2.0 lens attached)
Metering Sensor
Exmor R® CMOS sensor
Warranty
- Approximate. Effective megapixels.
- Compared to previous version/model.
- ISO range: [Stills] 80-102,400 (Standard), 40-409,600 (Expanded), [Movies] 80-102,400 (Standard), 80-409,600 (Expanded)
- Movie shooting with S-Log 3. Sony test conditions. May require color grading.
- 12p has a 1.1x crop. XAVC S-I (S&Q) 4K 120p 10-bit 4:2:2 requires CFexpress Type A (VPG200 or higher). XAVC S-I 4K 60p 10-bit 4:2:2 requires SDXC V90 or faster. XAVC S / XAVC HS 4K 120p 10-bit 4:2:2 requires SDXC V60 or faster. XAVC S HD 240p 10-bit 4:2:2 requires SDXC V60 or faster. CFexpress Type A supports all internal shooting modes.
- Requires optional compatible external recorder.
- Sony internal test. 77 deg F (25 deg C) (ambient, camera when recording started), Auto Power Off Temperature: High. The value will vary depending on the shooting conditions.
- World’s first based on Sony research. 9.44 M dot Approx values.
- Object recognition compared to cameras with BIONZ X processors.
- Human & animal. Animal Eye-AF not available in movie mode.
- ISO 100 equivalent, F2.0 lens, AF-S mode.
- Not guaranteed to be 100% dust and water resistant.
- When paired with optional XLR-K3M digital microphone adaptor kit
- Via optional adaptor
- Up to 10 fps in continuous “Hi+” mode and up to 8 fps in “H” mode. CFexpress Type A memory card. Sony tests.
- Latest version Image Edge desktop application is required.
- Post-production editing or S&Q mode recording required.
- Audio recording not available in the S&Q mode.
- 1420 x 804 effective sensor readout pixels at 240 fps recording.
- Sony internal test. 25 deg C (ambient, camera when recording started), Auto Power Off Temperature: High. The value will vary depending on the shooting conditions.
- Sony internal test. 25 deg C (ambient, camera when recording started), 160GB CFexpress Type-A card, Auto Power Off Temperature: High. The value will vary depending on the shooting conditions.
- XAVC HS compatible editing software required.
- HLG is a high dynamic range TV format specified by the international ITU-R BT.2100 standard
- When shooting full-frame still images. The number of AF points used depends on the shooting mode.
- Slight 1.1x (10%) image crop in Active Mode. “Standard” setting recommended for focal lengths of 200mm or longer. Active Mode is not available when recording at frame rates of 120 fps (100 fps PAL) or higher, or when using S&Q.
- Mechanical shutter. Only 100 Hz and 120 Hz flicker is detected. Continuous shooting speed may decrease. Anti-flicker shooting is not available during silent shooting, BULB exposure, or movie recording.
- Sony internal tests with electronic front curtain shutter.
- Models sold in some countries/regions support IEEE 802.11b/g/n (2.4 GHz) only. 5GHz communication may be restricted in some countries and regions.
- Proxy recording is not available in the following conditions: • Normal movie recording at a [Record Frame Rate] of 100p or higher • S&Q movie recording at a [Record Frame Rate] of 100p or higher• S&Q movies at a [Frame Rate] of 100 fps or higher. Proxy files cannot be played back via the camera.
© 2020 Sony Electronics Inc. All rights reserved. Reproduction in whole or in part without written permission is prohibited. Sony is not responsible for typographical and photographic errors. Features and specifications are subject to change without notice.
Sony, the Sony logo, the Alpha logo, Exmor R and BIONZ XR are trademarks of Sony Corporation. All other trademarks are trademarks of their respective owners.