Reference Manual

310
C
The Photo Shooting Menu: Shooting Options
D
When [On] Is Selected for [Silent Photography]
Selecting [On] for [Silent photography] disables some camera features,
including:
ISO sensitivities of Hi 0.3 through Hi 1.0,
flash photography,
long-exposure noise reduction, and
flicker reduction.
D
Interval Timer Settings
Turning the camera off or selecting a new release mode does not affect
interval-timer photography settings.