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Sony Alpha a7S III mirrorless camera body with vari-angle touchscreen and electronic viewfinder

Sony

Sony Alpha a7S III ILCE7SM3/B compact mirrorless camera

SKU CH-P7X9-KYF1V

A 12.1MP full-frame mirrorless camera with UHD 4K 120p 10-bit internal recording, 16-bit raw HDMI output, 759-point hybrid AF, 9.44m-dot EVF, 5-axis stabilisation and ISO 40-409600

  • Low-light clarity from 12.1MP full-frame BSI sensor
  • Smooth 4K 120p video with 10-bit 4:2:2 colour
  • Reliable focus tracking via 759 phase-detection points
  • Steady handheld shots with 5-axis stabilisation
  • Flexible framing on 3.0" vari-angle touchscreen

Sony Alpha a7S III Video Camera

The Sony Alpha a7S III is a compact mirrorless camera built around a 12.1MP full-frame Exmor R BSI CMOS sensor and BIONZ XR processor. It targets filmmakers and low-light specialists who need high-sensitivity 4K capture. The body-only design suits creators selecting their own E-mount lenses. It is not for photographers who want high-resolution stills beyond 12 megapixels.

UHD 4K 120p Internal Recording Limits

Video records internally at UHD 4K up to 120p with 10-bit 4:2:2 sampling and no recording time limit. A full-size HDMI port provides 16-bit raw output to external recorders. HLG and S-Log2/S-Log3 gamma profiles support HDR workflows. Rolling shutter is greatly reduced, yet buyers needing 8K resolution or raw recording directly to internal media cannot be served.

Vari-Angle Touchscreen And EVF Install

The 3.0-inch 1.44m-dot vari-angle touchscreen and 9.44m-dot QXGA OLED electronic viewfinder simplify composition from any angle. 5-axis SteadyShot stabilization steadies handheld shots without extra gear. 759-point fast hybrid AF with Real-time Eye AF tracks subjects reliably. Users unfamiliar with deep menu systems may find initial setup slower than expected.

Highlights

  • Low-light clarity from 12.1MP full-frame BSI sensor
  • Smooth 4K 120p video with 10-bit 4:2:2 colour
  • Reliable focus tracking via 759 phase-detection points
  • Steady handheld shots with 5-axis stabilisation
  • Flexible framing on 3.0" vari-angle touchscreen

Specifications

No published specifications for this item yet.

Questions about this item

Should I choose the body-only version or look for a kit with a lens?

The listed product is body only, so you will need to add a compatible E-mount lens for any shooting scenario.

What does the 12.1MP full-frame sensor mean for low-light video?

The 12.1MP Exmor R BSI CMOS sensor combined with the BIONZ XR processor delivers an extended ISO range of 40 to 409600, enabling clean UHD 4K 120p footage in very dark conditions.

How does the full-size HDMI port limit raw video output?

The full-size HDMI port supports 16-bit raw output to an external recorder, bypassing internal compression limits for maximum post-production flexibility.

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