Choose On for more accurate focus under low-light conditions when AF-S is selected for focus mode, but note that camera may require more time to focus. This option takes effect only in photo mode when a setting other than b is chosen with the mode dial. While low-light AF is in effect, “Low-light” will appear in the display and the display refresh rate may drop.

A Custom Settings: Fine-Tuning Camera Settings

a: Autofocus

b: Metering/exposure

c: Timers/AE lock

d: Shooting/display

e: Bracketing/flash

f: Controls

g: Movie