GoPro hero 5 black User Manual page 36

SHUTTER
The Shutter setting in Protune applies only to Video and determines
the amount of time that the shutter is open.
The options available for this setting depend on the FPS setting, as
noted below. The default setting is Auto.
Example 1:
Settings
1080p30
Auto (up to 2 sec) Auto
1/FPS 1/30 sec
1/(2xFPS) 1/60 sec
1/(4xFPS) 1/120 sec
1/(8xFPS) 1/240 sec
PRO TIP: For best results when using the Shutter setting,
mount your camera on a tripod or other stable surface to reduce
the amount of blur in your video or photos.
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/ Protune
Example 2:
1080p60
Auto
1/60 sec
1/120 sec
1/240 sec
1/480 sec
/ Protune
icon
ISO MODE
ISO Mode applies only to the Video capture mode and determines how
the ISO Limit setting is interpreted. ISO Mode is enabled when Shutter
is not set to Auto.
Setting Description
Uses the current ISO Limit setting as the
maximum ISO value. The ISO value that is
Max
applied might be lower, depending on the
lighting conditions.
Uses the current ISO Limit setting as the ISO
Lock value. This value does not change in response
to the lighting conditions.
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