Nikon D330018-55VR User Manual (en)

The Retouch Menu: Creating Retouched Copies
Image overlay combines two existing NEF (RAW) photographs to 
create a single picture that is saved separately from the originals; 
the results, which make use of RAW data from the camera image 
sensor, are noticeably better than overlays created in an imaging 
application. The new picture is saved at current image quality 
and size settings; before creating an overlay, set image quality 
and size (
0 85, 87; all options are available). To create an NEF 
(RAW) copy, choose an image quality of NEF (RAW).
Select Image overlay.
Highlight Image overlay in 
the retouch menu and press 
The dialog shown at right 
will be displayed, with Image 1 
highlighted; press 
J to display a list 
of the NEF (RAW) pictures created 
with this camera.
Image Overlay
G button
➜ N retouch menu