Before Use
Long Exposure NR
When you set the shutter speed to 1/3 second or longer (Long exposure shooting), noise reduction is turned on for the same duration that the shutter is open. This is to reduce the grainy noise typical in a long exposure.
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MENU
4 [Long Exposure NR] desired mode
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On
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Activates noise reduction for the same duration that the shutter is open. When noise reduction is in progress, a message appears and you cannot take another picture. Select this to prioritize the image quality.
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Off
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Does not use [Long Exposure NR]. Select this to prioritize the timing of shooting.
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Notes
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Even when [Long Exposure NR] is set to [On], noise reduction is not available in the following situations:
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When [Drive Mode] is set to [Cont. Shooting], [Spd Priority Cont.], [Self-timer(Cont)] or [Bracket: Cont.]
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When [Scene Selection] is set to
(Sports Action) or 
(Hand-held Twilight)
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In [Sweep Panorama] mode
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