Sony A7III Manual page 11

Record Setting:
XAVC S 4K
XAVC S HD
AVCHD (50i 17M(FH) or 50i 24M(FX)
S&Q Settings:
Frame Rate: 3, 6, 12, 25, 50 or 100FPS
Proxy Recording:
On.
(This allows you to records Proxies alongside 4K). File size is 720p. Turn this
off if you wish to create them afterwards. Just bear in mind that creating
proxies can take a very long time, so if you can do it whilst filming, it may
save you a lot of waiting.
Movie 2:
AF Drive Speed:
Slow (3-4 sec's)/ Normal (2-3 sec's) / Fast (1 sec)
This specifies how quickly the camera will autofocus from the current focus
point to another, so near to far or vice-versa. Works well with the 'Touch
screen' focus function turned on. You can then use the screen to tap where
you want it to change or for focus transitions.
AF Track Sensitivity:
Responsive / Standard
This changes how quickly the camera responds to focus adjustments
Auto Slow Shut:
When on, this automatically slows the shutter speed when filming in dark
locations, which can reduce noise.
When off, the camera will record smoother motion and less object blur.
This would also be affected by what picture profile you have selected on the
camera, which will go a long way to reducing noise.
Audio Recording:
On
Audio Rec. Level:
Default is okay, adjust if required.
Creative Media Centre
David Turner
25 FPS @ 60 or 100(Mbps)
25fps @ 16 or 50(Mbps)
50fps @ 25 or 50(Mbps)
100fps @ 60 or 100(Mbps)
50/60i @ 17 or 24(Mbps)
9 Sony A7 III Settings Guide
October 2019