GoPro HERO 4 BLACK Mode D'emploi page 38

/ Photo Mode
INTERVAL
Interval applies only to Continuous photo. Available intervals are 3
(default), 5 or 10 photos every second.
MEGAPIXELS
The HERO4 Black captures photos at 12MP, 7MP or 5MP. Smaller
megapixel values take up less space on the microSD card.
Note: Changes that you make to the Megapixels setting in Photo mode apply only to photo capture.
To adjust this setting for multi-shot capture, adjust the setting in Multi-Shot mode.
Photo Resolution
12MP Wide (default)
7MP Wide
7MP Medium
5MP Medium
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Field of View (FOV)
Largest field of view. Good for action shots
where you want to capture as much as
possible within the frame.
Mid-range field of view.