Nikon D500 - Manual (Page 55)

55 Menu Guide
Select On to reduce barrel distortion when shooting with wide-
angle lenses and to reduce pin-cushion distortion when
shooting with long lenses (note that the edges of the area visible
in the viewfinder may be cropped out of the final photograph,
and that the time needed to process photographs before
recording begins may increase). This option does not apply to
movies and is available only with type G, E, and D lenses (PC,
fisheye, and certain other lenses excluded); results are not
guaranteed with other lenses.
Reduce flicker and banding when shooting under fluorescent or
mercury-vapor lighting during viewfinder photography.
Auto Distortion Control
G button
➜ C photo shooting menu
A
Retouch: Distortion Control
For information on creating copies of existing photographs with
reduced barrel and pin-cushion distortion, see page 170.
Flicker Reduction
G button
➜ C photo shooting menu
Option Description
Flicker reduction
setting
When Enable is selected, the camera will time
photographs to reduce the effects of flicker. Note that
the frame rate may drop while flicker reduction is in
effect.
Flicker reduction
indicator
When On is selected, a FLICKER icon will be displayed in
the viewfinder if flicker is detected when the shutter-
release button is pressed halfway. If flicker is detected
when Disable is selected for Flicker reduction setting,
the icon will flash; to enable flicker reduction, select
Enable for Flicker reduction setting.