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Sony Alpha a7S III Mirrorless Digital Camera

The new Sony Alpha a7S III will keep you inspired to create images like no other. With extreme full-frame movie performance including high sensitivity (expanded ISO up to 409600), 15+ stop wide dynamic range, 4K120p, fast and dependable autofocusing, extra-strong image stabilisation and 4K60p All-I movie recording time over an hour, it again raises the bar for movie makers.

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.

Video is the primary application of the a7S III, and improvements to the sensor and processor enable faster readout speeds and greatly reduced rolling shutter, along with high-bitrate internal recording, 16-bit raw output via the full-size HDMI port, and flexible control over motion with variable frame rate selection. The a7S III also does away with recording time limits and incorporates HLG for direct HDR production as well as S-Log2/S-Log3 gamma profiles for advanced HDR production with editing.

The updated sensor design brings improved AF performance via 759 phase-detection points, which offer intelligent subject tracking and Real-time Eye AF to ensure critical focus on moving subjects in all recording modes. The sensor and BIONZ XR processor also facilitate impressive sensitivity, with an expanded range from ISO 40-409600, as well as fast 10 fps continuous shooting for up to 1000 consecutive raw frames. Additionally, 5-axis SteadyShot INSIDE sensor-shift image stabilisation is available, too, which minimises the appearance of camera shake by up to 5.5 stops.

Changes to the physical design include a rear LCD with a side-open articulating design and an impressive 9.44m-dot OLED electronic viewfinder. Dual memory card slots both support working with CFexpress Type A or SD UHS-II memory cards for flexible and high-speed file storage. Includes a free Sony 160GB CFexpress Type A TOUGH Memory Card.

  • 12MP Full-Frame Exmor R BSI CMOS Sensor
  • UHD 4K 120p Video, 10-Bit 4:2:2 Internal
  • 16-Bit Raw Output, HLG & S-Log3 Gammas
  • 759-Point Fast Hybrid AF
  • Articulating Touchscreen LCD
  • Compatible with Over 50 Native E-Mount Lenses
  • Takes SD & CFexpress Memory Cards

Create as you have never before with the Sony A7S III - a complete game changer!

With optimised video, optimised sensitivity, and optimised speed, the Sony Alpha 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.

Video is the primary application of the a7S III, and improvements to the sensor and processor enable faster readout speeds and greatly reduced rolling shutter, along with the high-bitrate internal recording, 16-bit raw output via the full-size HDMI port, and flexible control over motion with variable frame rate selection. The a7S III also does away with recording time limits and incorporates HLG for direct HDR production as well as S-Log2/S-Log3 gamma profiles for advanced HDR production with editing.

The updated sensor design also brings improved autofocus performance via 759 phase-detection points, which offer intelligent subject tracking and Real-time Eye AF to ensure critical focus on moving subjects in all recording modes. The sensor and BIONZ XR processor also facilitate impressive sensitivity, with an expanded range from ISO 40-409600, as well as fast 10 fps continuous shooting for up to 1000 consecutive raw frames. Additionally, 5-axis SteadyShot INSIDE sensor-shift image stabilisation is available, too, which minimises the appearance of camera shake by up to 5.5 stops.

Complementing the imaging assets, Sony has also made some changes to the a7S III's physical design, including a rear LCD with a side-open articulating design and an impressive 9.44m-dot OLED electronic viewfinder. The camera's menu system has also been updated for more intuitive navigation and the body design helps to promote better heat dissipation for improved continuous recording capabilities. Additionally, dual memory card slots both support working with CFexpress Type A or SD UHS-II memory cards for flexible and high-speed file storage.

12.1MP Exmor RS BSI CMOS Sensor and BIONZ XR Image 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.

UHD 4K 120p Video, 10-Bit 4:2:2 Internal Recording

Recording up to UHD 4K 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. Additionally, 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.

The high-speed, 120 fps recording also 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. Additionally, 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.

Affording extensive customisable colour and gamma controls, the a7S III allows users to adjust the gamma, black level, knee, colour 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. HLG (Hybrid Log-Gamma) support is also available, along with the BT.2020 colour space, for recording within a wide colour gamut and, in addition to S-Log2, S-Log3 is also available for producing a 15+-stop dynamic range with increased grading control in the shadow to mid-tone regions of the image.

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 Stabilisation

The a7S III incorporates an enhanced 5.5-stop effective 5-axis SteadyShot INSIDE image stabilisation 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 stabilisation will function at all times, even when used with third-party lenses and adapters or lenses with built-in optical stabilisation.

Additionally, specifically for video, there is also an Active IS mode that adds electronic stabilisation for even smoother footage straight out of camera.

Please note that we rely on an external provider for accurate featured content for this product.
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Camera

Megapixels
Actual: 12.9 Megapixel
Effective: 12.1 Megapixel
Frame Rate
Up 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
ISO Range
Auto, 80 to 102400 (Extended: 40 to 409600)
Memory
Dual Slot:
CFexpress Type A & SD (UHS-I/II)
Lens Mount
Sony E
Sensor Type
CMOS
Sensor Size Type
Full-Frame (1x Crop Factor)
Sensor Actual Size
35.6 x 23.8 mm
Fastest Shutter Speed
1/8000 sec
Bulb Mode
Longest Shutter Speed
30 sec
Bulb Mode
Flash Sync Speed
1/250 sec
Focus Points
Phase Detection: 759
Contrast Detection: 425
Processor
BIONZ XR
Video
Recording Modes:
H.265/XAVC HS 4:2:2 10-Bit
UHD 4K (3840 x 2160) at 23.976p/25p/29.97p/50p/59.94p/100p/119.88p [50 to 280 Mb/s]

H.265/XAVC HS 4:2:0 10-Bit
UHD 4K (3840 x 2160) at 23.976p/25p/29.97p/50p/59.94p/100p/119.88p [30 to 200 Mb/s]

H.264/XAVC S-I 4:2:2 10-Bit
UHD 4K (3840 x 2160) at 23.976p/25p/29.97p/50p/59.94p [240 to 600 Mb/s]
Full HD (1920 x 1080) at 23.976p/25p/29.97p/50p/59.94p [89 to 222 Mb/s]

H.264/XAVC S 4:2:2 10-Bit
UHD 4K (3840 x 2160) at 23.976p/25p/29.97p/50p/59.94p/100p/119.88p [100 to 280 Mb/s]
Full HD (1920 x 1080) at 23.976p/25p/29.97p/50p/59.94p/100p/119.88p [50 Mb/s]

H.264/XAVC S 4:2:0 8-Bit
UHD 4K (3840 x 2160) at 23.976p/25p/29.97p/50p/59.94p/100p/119.88p [60 to 200 Mb/s]
Full HD (1920 x 1080) at 23.976p/25p/29.97p/50p/59.94p/100p/119.88p [16 to 100 Mb/s]
File Formats
Image: JPEG, Raw, HEIF
Built-in Flash
No
Weather Sealing
Moisture & Dust Protection (0 to 40°C)

Batteries

Model
Sony NP-FZ100
Capacity
2280mAh (Approx. 600 Shots)
Volt
7.2 VDC
Type
Rechargeable Lithium-Ion Battery
Top Sellers - Silver
R 72,995 Only 1 left in Store
Delivery Truck Free Standard shipping included. Faster options available

What's in the box

  • Sony Alpha A7S III Mirrorless Digital Camera (Body Only)
    • Sony NP-FZ100 Rechargeable Lithium-Ion Battery (2280mAh)
    • Sony BC-QZ1 Battery Charger
    • Sony ALC-B1EM Body Cap for E-Mount Cameras
    • USB Type-C to Type-A Cable
    • Cable Protector
    • Shoulder Strap
    • Accessory Shoe Cap
    • Eyepiece Cup
  • Limited 2-Year Warranty

Reviewed by 4 customers

Low light machine
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5

Show Details

The Sony A7siii is the best in the industry at low light with native 12800 ISO.
You're able to shoot so much more in low light.

Awesome Video and Photographic Camera
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5

Show Details

Stunning Video quality. Autofocus is amazing. The camera is flexible with so many options.

Incredible camera for video
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5

Show Details

I recently purchased this camera with the help of Gerald and can say that it's taken our production quality on projects to the next level. The 10 bit 422 video is worth it...

This camera is one of the best
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Show Details

This camera in my personal opinion one of the best mirrorless cameras out there and one of the best cameras for wildlife photography.

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