Auto Distortion Control
G button U C photo shooting menu
Select [ON] as required to reduce barrel distortion when shooting with wide-angle lenses and to reduce pin-cushion distortion when shooting with long lenses. Note that [ON] may be selected automatically with some lenses, in which case this item will be grayed out and unavailable.
Changes to [Auto distortion control] in the photo shooting menu apply in the video recording menu and vice versa.