Nikon D1 Manual page 103

Options
The OPTIONS submenu contains the following items:
HISTOGRAM: When this item is checked, a
histogram is displayed when
images are played back.
HIGHLIGHT: When this item is checked, high-
lights are indicated by a blink-
ing display when images are
played back.
To check or deselect items in the OPTIONS menu, highlight the item using
the focus area selector and press the
HISTOGRAM
When this item is checked, a histogram is shown
with images displayed in single-frame playback,
capture preview, or record-and-review. The his-
togram shows the distribution of shadows, mid-
tones, and highlights in the image. The horizontal
axis corresponds to brightness, starting with black
at the left end of the scale and shading through to
white at the right end. The vertical axis shows the
number of pixels of a given brightness in the image.
When the histogram is displayed, the playback screen also shows the
image, reduced to occupy one-quarter of the monitor, together with photo
information. In single-image playback, press the focus-area selector to the
right or left to view more information on the current photograph (additional
information is not available in capture-preview or record-and-review modes).
In capture-preview mode, the scale of the histogram's horizontal axis is
reduced by one half.
Note
Choosing a new setting in the OPTIONS submenu automatically changes the option
selected for Custom Setting 27 in the current custom set (see "Custom Settings").
90
OPTIONS
HISTOGRAM
HIGHLIGHT
SET
button.
Playback: The Playback Menu