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source: https://www.sonyalpharumors.com/officia ... fe-lenses/

A7rIII key specs:
BSI 42.2 MP full frame sensor same sensor
4K HDR video
ISO 100 to 32000
10fps
14 bit raw for everything including continuous shooting
5 axis stabilization to 5.5 stops
Physical dimensions are identical to the Sony a7r II
All the new stuff is inside with the exception of the Joystick from the Sony a9
15 stops of dynamic range (avec le pixel shift)
Autofocus from a9
Eye AF operates at double the speed
No optical low pass filter
Highest picture quality of any camera they’ve made
Low vibration shutter, completely new shutter
Bionz X processor
Raw compressed buffer at 87 photos and uncompressed is 28
Pixel shift multi shooting to capture more color.
399 phase detection AF points
Contrast AF points: 425
68% of the sensor area covered with AF points
2x faster autofocus than the previous camera
Subject tracking performance has doubled in effectiveness
Touch functions on the screen: AF-on, multi selector and anti-flicker
Fast AF and exposure tracking at 10fps
8fps shooting continuous Live View
Full HD video at 120p
4K video at 24p and 30p
USB 3.1
Dust and moisture resistant
Two card slots
3.69 million dot OLED tru-finder
The A9 battery
PC sync port
You can externally power the camera via USB
No mirror shock no shutter shock and silent shooting
10fps no black out. At 8fps there is momentary blackout
No time lapse mode
$3,199.99 in market at end of November
The α7R III can capture outstanding 4K high resolution motion images with 5K (15MP) oversampling, as well as a new HLG (Hybrid Log-Gamma) image configuration file,
Support real-time HDR workflow, can capture a wide dynamic range of high-precision fresh dynamic images, no color gradient processing.
In the α7R III on the new pixel conversion multiple shooting mode, make full use of the fuselage 5-axis anti-shake function, to achieve high-resolution images. In this mode, the camera moves in 1 pixel increments and shoots four separate pixel moving images, containing a total of about $ 99.44 million pixel data. The four images can be synthesized and processed using the software from the new Imaging Edge Intelligent Imaging Application Center. This mode allows for higher resolution and color accuracy of still images, which are more ideal for shooting themes with complex details and colors for architecture, artwork, or other still life.