Iso Minimum/Maximum - GoPro Hero 8 Black User Manual

Tech Specs: Protune

ISO MINIMUM/MAXIMUM

ISO Minimum and ISO Maximum let you set a range for the camera's
sensitivity to light and image noise. Image noise refers to the degree
of graininess in the shot.
In low light, higher ISO values result in brighter images but with more
image noise. Lower values result in darker images with less image noise.
Scroll between the options to see a live preview of each setting, and then
tap the one you want.
The default for ISO Maximum is 1600 for video and 3200 for photos.
The default for ISO Minimum is 100.
100 200
Darker image
Lower image noise
Heads Up: For the Video and Photo modes, ISO behavior depends on
the Protune Shutter setting. The ISO Maximum that you select is used
as the maximum ISO value. The ISO value that is applied might be lower
depending on the lighting conditions.
PRO TIP: To lock the ISO at a specific value, set ISO Minimum and ISO
Maximum to the same values.
132
400 800 1600 3200 6400
Brighter image
Greater image noise