GoPro Hero 4 session - Protune Settings (Continued); ISO Limit Adjustment

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ISO LIMIT
ISO Limit adjusts the camera’s sensitivity in low-light environments,
and creates a balance between brightness and resulting image noise.
Image noise refers to the degree of graininess in the image.
Setting Resulting Quality
1600 (default)
Moderately bright video in low light,
moderate image noise
400
Darker video in low light, reduced
image noise
/ Protune
SHARPNESS
Sharpness controls the level of detail and contrast in your video.
Setting Resulting Quality
On (default) Moderately sharp video
Off
Soer video that allows for more flexibility
during post-production
PRO TIP: If you plan to increase sharpness during editing, turn this
setting off.
/ Protune