Sony α7R III

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Sony α7R III
Sony Alpha ILCE-7RM3 full frame camera with lens.jpeg
Maker Sony
Lens mount Sony E-mount
Image sensor type BSI-CMOS
Image sensor size 35.9 × 24 mm (Full frame type)
Maximum resolution 7952 × 5304 (42 megapixels)
Recording medium SD, SDHC, or SDXC memory card
Focus areas 425 focus points
Flash no
Shutter speeds 1/8000 s to 30 s, BULB
Continuous shooting 10 frames per second
Viewfinder EVF(Electronic View Finder)
Viewfinder magnification 0.78
Frame coverage 100%
Image Processing
Image processor BIONZ X
Custom WB Yes
Rear LCD monitor 76 mm (3 in) with 1,440,000 dots
Dimensions 127 by 96 by 74 mm (5.0 by 3.8 by 2.9 in)
Weight 657 g including battery

The Sony α7R III (model ILCE-7RM3)[1] 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.

Improvements over α7R II[edit]

Several improvements were made compared to the α7R II, including the following[1]:

  • 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-only slot that fully exploits UHS-II technology. The other is a slower UHS-I slot that also supports Sony's legacy Memory Stick Duo cards.
  • 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. ^ a b "Sony a7R III promises faster bursts, better focusing and longer battery life". 2017-10-25.

External links[edit]