Nikon D6 Reference Manual page 1030

Perspective Control
Create copies that reduce the effects of
perspective in photos taken looking up
from the base of a tall object.
•
The effect can be previewed in the edit
display.
•
Note that greater amounts of
perspective control result in more of the edges being cropped
out.
Use the multi selector ( 1 , 3 , 4 , or 2 ) to adjust perspective.
•
• Press J to save the retouched copy.
978 N The Retouch Menu: Creating Retouched Copies
Before
G button U N retouch menu
After