Nikon D3300 - Manual (Page 189)

169 Recording and Viewing Movies
3
Create a still copy.
Press
1 to create a still copy
of the current frame.
4
Save the copy.
Highlight Yes and press
J
to create a fine-quality
(
0 85) JPEG copy of the
selected frame.
A
Save Selected Frame
JPEG movie stills created with the Save selected frame option can not
be retouched. JPEG movie stills lack some categories of photo
information (
0 172).