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Black mirrorless camera body with 3.0 inch tilting touchscreen and electronic viewfinder

Sony

Sony Alpha a7R IIIA compact mirrorless camera 42.4MP

SKU CH-7QE7-8VG0A

Full-frame 42.4MP mirrorless body with 10fps continuous shooting, 399 phase-detection AF points, 5.5-stop 5-axis stabilisation, 3.69M-dot OLED EVF and dual UHS-II SD slots

  • Effective Pixels42.4
  • LCD3
  • TypeMirrorless
  • ColorBlack
  • Focus TypeAutomatic, Continuous-Servo AF, Direct Manual Focus, Manual
  • Flash TypeHotshoe
  • 4MP full-frame sensor captures exceptional detail
  • Real-time Eye-AF tracks humans and animals precisely
  • 10fps continuous shooting freezes fast action reliably
  • 5-axis stabilization delivers 5.5-stop exposure advantage
  • Dual UHS-II SD slots enable flexible storage workflows

High-Resolution Full-Frame Mirrorless Camera

The Sony Alpha a7R IIIA is a compact mirrorless camera built around a 42.4MP full-frame Exmor R CMOS sensor and BIONZ X processor. It delivers 14-bit uncompressed RAW output with an ISO range of 50 to 102400. The body includes 5-axis SteadyShot INSIDE stabilisation rated at a 5.5-stop advantage. Dual UHS-II compatible SD slots, a 3.69 million-dot OLED EVF, and a 3.0" 2.36 million-dot tilting touchscreen complete the core feature set.

Suited to Detail-Focused Shooters.

This camera suits photographers who prioritise resolving power and dynamic range for landscape, studio, or portrait work. The 399 phase-detection and 425 contrast AF points with Real-time Eye-AF for humans and animals support accurate subject tracking. Buyers who need higher continuous frame rates or larger buffer depths for extended sports sequences should look at models optimised for pure throughput rather than maximum pixel count.

42.4MP Sensor Dictates Workflow Demands

The 42.4MP resolution is the single specification that determines whether this body fits your pipeline. It produces large 14-bit RAW files that demand fast UHS-II cards, ample storage, and capable processing hardware. The sensor enables up to 10fps continuous shooting with AE/AF tracking and full-width 4K 2160p video recording. If your output targets or hardware budget align with moderate file sizes, a lower-resolution body may integrate more smoothly.

Highlights

  • 4MP full-frame sensor captures exceptional detail
  • Real-time Eye-AF tracks humans and animals precisely
  • 10fps continuous shooting freezes fast action reliably
  • 5-axis stabilization delivers 5.5-stop exposure advantage
  • Dual UHS-II SD slots enable flexible storage workflows

Specifications

Effective Pixels42.4
LCD3
BrandSONY
SeriesSony Alpha
ModelSony Alpha A7R III
TypeMirrorless
ColorBlack
Focus TypeAutomatic, Continuous-Servo AF, Direct Manual Focus, Manual Focus, Single-Servo AF
Flash TypeHotshoe
FeaturesCMOS Sensor , 4K Video Recording , 2160p UHD Video Recording , 1080p HD Video Recording , Audio Recording , Built-in Wi-Fi , Wi-Fi , Bluetooth , Interchangeable Lenses , Tiltable Screen , Touch Screen , Image Stabilization , High Dynamic Range (HDR) , Auto Focus , AF Lock , AE/FE Lock , Face Detection , Eye-Fi Card Ready , Exposure Compensation , Histogram Display , Noise Reduction , Sharpness Control , Date/Time Stamp , Tripod Thread , Auto Power Save , Direct Print , DPOF Support , Interval Shooting Mode , Time Lapse

Questions about this item

Will my existing Sony E-mount lenses work with the 42.4MP sensor and 399 phase-detection points?

Yes, all Sony E-mount lenses are compatible; the 399 on-sensor phase-detection points and 425 contrast areas cover the full frame for fast hybrid AF with adapted glass.

How do I confirm the 5-axis SteadyShot INSIDE stabilization is active after setup?

Turn on SteadyShot in the menu; the 5.5-stop indicator appears on the 3.69M-dot EVF or 2.36M-dot tilting LCD, and the 5-axis icon shows active compensation while half-pressing the shutter.

The body-only listing mentions dual SD slots — are UHS-II cards included or must I buy them separately?

Cards are not included; both slots support UHS-II SD media, so purchase at least one UHS-II card for 10fps bursts and 4K video recording.

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