Sony α7R III

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Sony α7R III
Sony Alpha ILCE-7RM3 full frame camera with lens.jpeg
Lens mountSony E-mount
Sensor typeBSI-CMOS
Sensor size35.9 × 24 mm (Full frame type)
Maximum resolution7952 × 5304 (42 megapixels)
Film speedISO 100–32000 (expandable to ISO 50–102400) (still images); ISO 100–12800 (movies)[1]
Recording mediumSD, SDHC, or SDXC memory card
Focus areas425 focus points
Shutter speeds1/8000 s to 30 s, BULB
Continuous shooting10 frames per second
ViewfinderEVF(Electronic View Finder)
Viewfinder magnification0.78
Frame coverage100%
Image processing
Image processorBIONZ X
White balanceYes
LCD screen76 mm (3 in) with 1,440,000 dots
Dimensions127 by 96 by 74 mm (5.0 by 3.8 by 2.9 in)
Weight657 g including battery
Made in China

The Sony α7R III (model ILCE-7RM3)[2] is a full-frame mirrorless interchangeable-lens camera manufactured by Sony. It was announced on 25 October 2017 as the successor to the Sony α7R II launched two years prior. The camera shares many features with the α7R II, including the same 42.2 MP resolution for still photography. It was superseded by the Sony α7R IV in July 2019.

Camera does not include optical low-pass (anti-aliasing) filter[3]

Improvements over α7R II[edit]

Several improvements were made compared to the α7R II, including the following:[2]

  • Improved dynamic range due to lower noise in sensor readout
  • 425 contrast-detect autofocus points, up from 25 in the α7R II
  • Altered button layout reminiscent of the α9
  • Improved autofocus performance
  • Improved battery life due to larger battery
  • Dual SD card slots, compared to a single slot in the α7R II. However, the slots do not exactly match. One is an SD slot (UHS-I/II compliant), the other is a dual SD (UHS-I compliant) and Sony Memory Stick Duo slot.
  • Improved shutter mechanism to reduce shutter-induced shake
  • Pixel shift multi-shot mode that combines exposures taken on each subpixel of the Bayer filter, improving overall image quality

See also[edit]


  1. ^ "Sony α7R III 35mm full-frame camera with autofocus". Sony. Retrieved 2018-11-12.
  2. ^ a b "Sony a7R III promises faster bursts, better focusing and longer battery life". 2017-10-25.
  3. ^ "Sony A7R III Review". Camera Decision. Retrieved 2023-02-17.

External links[edit]