High Iso Nr - Nikon D300 User Manual

High ISO NR

(User's Manual: D300S page 259; D300 page 263)
High ISO NR (High ISO Noise Reduction) lessens the effects
of visual digital noise in your images when you use ISO
sensitivity (exposure gain) settings above ISO 800.
Have you ever tried to watch TV while children are playing in
the same room? The louder you turn the TV, the louder the
kids get, it seems. However loud the volume of the TV, the
children laughing and running around degrade the pure TV
sound you desire. There is a high child-to-TV noise ratio that
interferes with your enjoyment of the program you are
watching. After a while, you figure out that there is a point
when you simply have to ask the kids to leave the room.
Turning up the TV just makes them get louder and louder to
overcome the TV sound.
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