Samsung EC-NV30ZSBA-US - Manual (Page 45)

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ACB (Auto Contrast Balance) Shutter Speed
When this option is selected, the contrast is automatically adjusted. That is,
when pictures are taken in backlight conditions where the exposure varies
considerably or where there is wide variation in brightness, the brightness
is automatically adjusted to obtain clear picture quality. This mode will set the shutter speed for
automatic exposure in manual mode. High
shutter speeds can capture a moving object
in a way that makes it seem as if the object is
not moving. Low shutter speeds can capture
a moving object, giving it a dynamic feeling of
movement.
 The ACB function is available in AUTO, PROGRAM or PORTRAIT recording
mode. ACB function always operates in the AUTO, PORTRAIT recording
mode.
 The ACB function is not available when the HIGH SPEED, M.CAPTURE or
AEB options are enabled.
 The ACB function is available only when ISO is set to a value between 80
and 200.
■ Setting up the shutter speed
To select the shutter speed, touch the button and slide your finger to the left or
right.
Slow Fast