For night videos, you'll want to prioritize settings that allow more light to enter the camera. Here are some recommendations for ISO and Shutter Speed:

ISO:

Start with the lowest ISO possible (100 or 200) to minimize noise and digital artifacts.

Gradually increase the ISO as needed, but avoid going too high (above 1600) to prevent excessive noise.

Shutter Speed:

Use a slower shutter speed to let more light in, but be careful not to introduce too much motion blur.

Aim for a shutter speed between 1/30s to 1/60s. This will create a smooth, natural-looking video.

If you need to prioritize sharpness over motion, you can try a faster shutter speed (1/125s or 1/250s).

Additional Tips:

Use the GoPro's built-in low-light mode (if available) to help reduce noise.

Consider using a wider angle lens (like the GoPro's Ultra-Wide lens) to capture more light.

If possible, add external lighting to the scene to supplement the available light.

Experiment with different settings to find the right balance for your specific scene.

Here's an example setting combination for night videos:

ISO: 400

Shutter Speed: 1/30s

Resolution: 1080p

Frame Rate: 30fps

FOV: Wide or Ultra-Wide

Remember, these are starting points. Adjust the settings based on the specific conditions and the look you're aiming for.