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 The 24MP sensor is a BSI design but doesn't gain the super-fast readout of the a9's more sophisticated 'stacked CMOS' sensor. This means it can't match the a9's top shooting speed of 20fps and doesn't offer that camera's "anti-distortion shutter." The a7 III's fully electronic shutter takes around 1/18th of a second, rather than the roughly 1/160th of a second that the a9 takes. Its 693 AF points offer 93% frame coverage and are supported by 425 contrast-detection AF points. We've already had a chance to compare its Eye AF and Lock-On AF performance to that of the a9.

  • Newly Developed Full-frame 24.2MP[i] Back-Illuminated Exmor R™ CMOS Image Sensor with Evolved Image Processing
  • Wide ISO range of 100 - 51200 (expandable to ISO 50 – 204800 for still images) and 15-Stop[ii] Dynamic Range at low sensitivities
  • World Class AF system featuring 693 phase-detection AF points covering 93% of image area, 425 contrast AF points and fast and reliable Eye AF
  • Continuous Shooting at up to 10 fps[iii] with either Mechanical Shutter or Silent Shooting[iv] and full Auto Focus/Auto Exposure tracking
  • 5-axis optical in-body image stabilization with a 5.0 step[v] shutter speed advantage
  • High Resolution 4K[vi] Movie Shooting with full pixel readout and no pixel binning across full-width of full-frame sensor
  • The longest rated battery life of any Mirrorless camera[vii] at 710 shots[viii] per charge
  • Upgraded operability and functionality including addition of joystick for adjusting focus points, Dual SD Card Slots, SuperSpeed USB (USB 3.1 Gen 1) USB Type-C™ Terminal and more