High Iso Noise Reduction - Nikon D850 Settings Manual

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High ISO Noise Reduction

Selecting an option other than Off for High ISO NR in the movie shoot-
ing menu reduces noise (randomly-spaced bright pixels), particularly in
movies shot at high ISO sensitivities. Choose the amount of noise reduc-
tion performed from High, Normal, and Low, but note that edges may
soften and the picture may lose definition at higher settings. If Off is
selected, noise reduction will be performed only as required and never
at an amount as high as when Low is selected.
Settings Tips and Tricks Viewing Movies Appendix
Picture Quality, Continued
i-button menu
Movie-related controls —
Movie shooting menu
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