Nikon Z 50 Reference Manual - Page 239

Vignette Control G button ➜ C (photo shooting menu) Vignette control reduces the drop in brightness that occurs at the edges of the frame. Its effects vary from lens to lens and are most noticeable at maximum aperture. Choose from High, Normal, Low, and Off. D Vignette Control Depending on the scene, shooting conditions, and type of lens, JPEG images may exhibit noise (fog) or variations in peripheral brightness, while custom Picture Controls and preset Picture Controls that have been modified from default settings may not produce the desired effect. Take test shots and view the results in the display. Diffraction Compensation G button ➜ C (photo shooting menu) Select On to reduce diffraction at small apertures (high f/-numbers). Auto Distortion Control G button ➜ 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 the Auto distortion control option will be grayed out and unavailable). Menu Guide > C The Photo Shooting Menu 211