Nikon D300 User Manual page 207

Even if you set
apply NR when you exceed ISO
official starting point for forced
which is between ISO
being one-third stop above 3200 (about ISO 4250). There are
two other one-third stop levels above
(about ISO 5400) and
Figure 3-46. High ISO NR choices
Here are the steps to choose a
screens in Figure
1. Choose High ISO NR
scroll to the right.
2. Select one of the noise reduction levels: Low, Normal,
High, or Off.
3. Press the
The D300S allows you to control the
by using the Information display edit
High ISO NR
3200
Hi 1 (about ISO 6400).
3-46):
OK button to save your setting.
to Off, the camera will still
3200 (Hi 0.3
High ISO NR
and 6400 (Hi
Hi 0.3, namely
High ISO NR
from the Shooting Menu
High
screen.
207
to Hi 1). The
is Hi
1), with Hi 0.3
Hi 0.7
setting (see the
ISO. NR function
0.3,
and