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Black mirrorless camera body with articulating touchscreen and electronic viewfinder

Sony

Sony Alpha a7S III Mirrorless Camera 12.1MP 4K 120p 10-bit 759 AF 9.44m EVF ISO 409600

SKU CH-0YYR-B6HK4

Full-frame mirrorless camera with 12.1MP sensor, 4K 120p 10-bit video, 759-point hybrid AF, 9.44m-dot EVF and ISO 409600

  • Exterior colorBlack
  • Product colorBlack
  • Product typeMirrorless
  • 1MP full-frame BSI sensor delivers ultra-clean low-light images up to ISO 409600
  • UHD 4K 10-bit 4:2:2 video recording at up to 120p for smooth slow motion
  • 759-point fast hybrid AF system provides rapid, precise focus across the frame
  • World-first 9.44m-dot OLED EVF offers exceptionally detailed eye-level viewing
  • Fully articulating touchscreen enables flexible composition from any angle

Low-Light 12.1MP Full-Frame Mirrorless Camera

The Sony Alpha a7S III uses a 12.1MP Exmor R back-illuminated full-frame sensor paired with the BIONZ XR processor to deliver clean images up to ISO 409600 and UHD 4K 10-bit 4:2:2 video at up to 120p. A 759-point Fast Hybrid AF system and a world-first 9.44m-dot OLED electronic viewfinder support precise composition and focus in demanding conditions.

Video Professionals and Low-Light Specialists

This camera suits creators who need high-frame-rate 4K 10-bit internal recording, 16-bit RAW video output via HDMI, and extreme low-light sensitivity for events, documentaries or cinema work. Photographers who prioritise high-resolution stills for large prints or heavy cropping should consider a higher-megapixel body instead.

12.1MP Sensor Resolution Decides Fit

The 12.1MP full-frame sensor determines whether the camera meets your still-image detail requirements; it favours low-noise performance and fast readout over maximum pixel count. Buyers who need more megapixels for landscape, studio or archival work will need a different sensor resolution.

How it compares

Measured against everything we stock in DSLR Camera Bodies & Kits, at today’s prices. Recalculated every night.

Price $2,040.99
Pricier than about 93% of the 517 comparable items (median $785.99).

Specifications

Product
Product colorBlack
Product typeMirrorless
Exterior colorBlack

Questions about this item

What comes in the box with the Sony Alpha a7S III and do I need to buy a memory card or battery separately?

The camera body is supplied new in its original packaging. A rechargeable battery and charger are included. Memory cards are not included and must be purchased separately to record 4K 10-bit 4:2:2 video at up to 120p.

Should I choose the 12.1MP full-frame model or a higher-resolution version for low-light video up to ISO 409600?

The 12.1MP Exmor R BSI sensor is optimised for sensitivity and readout speed. Its larger pixels deliver cleaner low-light performance up to ISO 409600 and enable full-pixel 4K 120p 10-bit recording without crop.

What does the 9.44m-dot OLED electronic viewfinder resolution mean when I am composing 4K 120p footage?

The 9.44 million dot OLED panel provides a high-magnification, high-refresh view with minimal lag. It allows precise manual focus and exposure judgement while recording 4K 10-bit 4:2:2 at 120p.

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