Nikon Df - Manual (Page 261)

241
U
“Vignetting” is a drop in brightness at the edges of a photograph.
Vignette control reduces vignetting for type G, E, and D lenses
(DX and PC lenses excluded). Its effects vary from lens to lens and
are most noticeable at maximum aperture. Choose from High,
Normal, Low, and Off.
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 is available only with type G, E, and D
lenses (PC, fisheye, and certain other lenses excluded); results are
not guaranteed with other lenses. Before using auto distortion
control with DX lenses, select On for Auto DX crop or choose an
image area of DX (24Ч16) 1.5Ч (0 52); selecting other options
may result in heavily cropped photographs or in photographs with
severe peripheral distortion.
Vignette Control
G
button ➜ C shooting menu
A
Vignette Control
Depending on the scene, shooting conditions, and type of lens, TIFF
and 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 monitor.
Vignette control does not apply to multiple exposures (0 149) or DX-
format images (0 52).
Auto Distortion Control
G
button ➜ C shooting menu
A
Retouch: Distortion Control
For information on creating copies of existing photographs with
reduced barrel and pin-cushion distortion, see page 305.