Setting up my GoPro 8 Black

[MaxBottomtime]

We often have very little vis at depth in SoCal. Today, we had dark green water, two feet vis, and night dive conditions. We couldn't see our hands without a bright light.

 

[icechip]

Today, we had dark green water, two feet vis, and night dive conditions.

Sounds like Maine waters at times.

 

[vytaswashere]

Setting up my new Father's Day GoPro 8 black. Plan to carry it on a floaty handle with PolarPro filters. What would be the go-to settings for most diving between 15'-40'? 1080p at 60fps? Standard, Activity, or Cinematic? Worth shooting in 4k or would that finish off the battery and fill the card too fast? Anyone tried the Hypersmooth or low-lite features underwater or the zoom?

1080p 60fps is more then enough to start with. 4k does drain the battery faster, takes more space and requires a powerful computer to process. I use 7 but it is very similar to 8. I would start with this:
FOV - Wide
Protunes - On
EV - 0
White Balance - Auto
ISO min - 100
ISO max - 800
Sharpness - Medium
Colour GoPro.
You might have to reduce the ISO max depending on water conditions and if it's a sunny day. The more light there is underwater the lower the ISO max should be. Actually, just released a video about the GoPro underwater settings. Hopefully it will help: