I generally do not do very low light work so this was my first attempt at it with the A7iii to see what it can do. Manual focus was used as the auto focus kept hunting due to darkness.
First image is ISO 8000 f/2.8 8″ exposure @ 200mm
Second image is ISO 12800 f/2.8 1″ exposure @ 200mm
The third image I took with my phone as I stood behind the A7iii. The bottom right of the image is what the A7iii is seeing and the rest of the image is what the naked eye was seeing.
Straight from camera. No post processing. FE 2.8/70-200 GM OSS Lens