Sony A7S MKIII Body

Product Code: 115301

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  • Product Description
  • Specifications
  • What's in the Box?
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Imagination in Motion

Everything is New

Five years in the making, the Alpha 7S III redefines the “S” series lineup. Working closely with professional cinematographers and videographers across the world, the Alpha 7S III aims to meet the uncompromising demands for working professionals with incomparable reliability, paired with an entirely new way of capturing movies and stills

Exmor R image sensor
The Alpha 7S III has been built with an entirely new image sensor expanded for a new stills and movie shooting experience. The full-frame 12.1-megapixel back-illuminated CMOS image sensor delivers high sensitivity, low noise, a colour filter array that boosts colour reproduction accuracy, and an increased dynamic range for both stills and movies.

BIONZ XR processor
The new image processing engine BIONZ XR™ is aimed at the future, augmenting the high sensitivity and wide dynamic range that have already become hallmarks of the “S” series. Utilising this incredible processing ability allows for 10-bit 4:2:2 video recording at 4K resolution 120 frames/second and 240 frames/second in FHD, while taking full advantage of Sony’s autofocus and autoexposure.

Real-time Tracking Autofocus
For a first in an “S” series, the Alpha 7S III supports focal plane phase-detection. This enables a substantial increase in stability and precision when using autofocus, and importantly introduces the incredible abilities of Real-time Tracking Autofocus for both stills and movie mode. Object, and face and eye tracking is now available for both humans and animals.

Video Recording Format - All-Intra
For the first time in an α series body, the Alpha 7S III introduces the XAVC S-I recording format for video which supports internal intra-frame (All-I) recording, allowing internal 4K recording at bit-rates up to 600 Mbps. The ability to capture this incredible amount of video data unlocks a wealth of post-production benefits while editing and colour grading the footage.

15 stops Dynamic Range in movie mode
The Alpha 7S III, thanks to the improvements for both image sensor and image processor, now has the ability to record 15 stops of dynamic range in movie mode when shooting S-Log3 Gamma. 15 stops delivers significantly smoother gradation from highlights to shadows within a scene, retaining greater details and reproducing fine changes in texture.

RGB Chroma Subsampling
Powered by the BIONZ XR image processor, the Alpha 7S III offers chroma sub-sampling at the highest bit-depth seen on an α camera. 4:2:2 colour sampling collects fine colour details and at 10-bit delivers extraordinary realism to every scene. Thanks to the improved colour sampling, the Alpha 7S III supports the current industry standard HLG formats of BT.2020 and BT.2100 to deliver instant HDR content.

CFexpress Type A media slots
The upper (Slot 1) and lower (Slot 2) media slots both support UHS-I and UHS-II SDXC/SDHC cards as well as the all new CFexpress Type A cards for higher overall capacity and faster read/write speeds. CFexpress Type A cards are ideally suited to high-speed continuous still shooting as well as 4K movie recording at high bit rates, providing next-generation write speeds of still image and movie data.

CFexpress Type A
In a world first* the Alpha 7S III features dual CFexpress type A card slots. Capable of 800MB/s read and 700MB/s write speeds, the CFexpress cards are fast, future-oriented storage medias allowing unprecedented shooting freedom. Available in 80GB and 160GB, the CFexpress cards gain the TOUGH title for incredible durability, waterproofing, and x-ray protection. Alongside the CFexpress cards is the all new card reader MRW-G2 which reads from both SD and CFexpress cards. When using CFexpress cards, read speeds are 2.8x faster than SDXC UHS-II SD cards.


• 759 Phase-detect AF points
• 425 Contrast-detect AF points
• Improved AI-based Real-time Eye autofocus in stills and movie mode
• Standard ISO range 80-102400
• 5.5 steps (CIPA) image stabilisation with new Active Mode stabilisation
• Digital Audio Interface
• 120fps 4K and 240fps FHD movie recording
• 16-bit RAW external recording
• 15 stops dynamic range
• Internal intra-frame recording at 10-bit
• Dual function Media card slots
• CFexpress Type A with 1000mbps speed
• Improved weather sealing
• Improved heat dissipation
• Simultaneously display video across three displays
• RAW, JPEG & HEIF photo formats
• Bluetooth 5.0
• 2.4 and 5Ghz Wifi
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
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