Nikon D5100 Reference Manual page 32

Create copies that appear to have been taken with a fisheye
lens. Press I_ to increase the effect (this also increases the
amount that will be cropped out at the edges of the image), •
to reduce it. The effect can be previewed in the edit display.
Press _) to copy the photograph, or press 1_1to exit to playback
without creating a copy.
Create an outline copy of a photograph to use as a base for
painting. The effect can be previewed in the edit display. Press
_) to copy the photograph.
Before After
Create a copy of a photograph that resembles a sketch made
with colored pencils. Press • or • to highlight Vividness or
Outlines and press • or I_ to change. Vividness can be
increased to make colors more saturated, or decreased for a
washed-out, monochromatic effect, while outlines can be made
thicker or thinner. Thicker outlines makes colors more
saturated. The results can be previewed in the edit display.
Press _) to copy the photograph, or press 1_1to exit to playback
without creating a copy.
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