Nikon D850 Menu Manual page 211

5
Preview the overlay.
To preview the composition, press 4
or 2 to place the cursor in the
Preview column, then press 1 or 3
to highlight Overlay and press J
(note that colors and brightness in the
preview may differ from the final
image). To save the overlay without displaying a preview,
select Save. To return to Step 4 and select new photos or
adjust gain, press W (M).
6
Save the overlay.
Press J while the preview is displayed
to save the overlay. After an overlay is
created, the resulting image will be
displayed full-frame in the monitor.
D
Image Overlay
Only large NEF (RAW) photographs with the same image area and bit-
depth can be combined.
The overlay has the same photo info (including date of recording,
metering, shutter speed, aperture, exposure mode, exposure
compensation, focal length, and image orientation) and values for
white balance and Picture Control as the photograph selected for
Image 1. The current image comment is appended to the overlay
when it is saved; copyright information, however, are not copied.
Overlays saved in NEF (RAW) format use the compression selected for
NEF (RAW) compression in the NEF (RAW) recording menu and have
the same bit depth as the original images.
211
Menu Guide