GoPro HERO4 Silver Mode D'emploi page 67

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Protune for Video ISO Limit
Setting
6400 (default)
1600
400
Protune for Photo ISO Limit
Setting
800 (default)
400
200
100
Resulting Video Quality
Brighter video in low light, increased image noise
Moderately bright video in low light, moderate
image noise
Darker video in low light, reduced image noise
Resulting Photo Quality
Darker photo in very low light, increased
image noise
Darker photo in low light, moderate image noise
Bright photo in indoor lighting, marginal
image noise
Bright photo in outdoor daylight, minimal
image noise
/ Protune
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