Leica DFC Series Manual page 19

To select a Histogram type choose Luminosity , Red ,
Green , Blue or Combined . The default is Luminosity .
To select automatic contrast functions select
Auto White , Auto Black or Auto Gamma . To reset these
values choose Reset Black/White Levels or
Reset Gamma , but you must deselect the auto functions
first. The default value for Black is 0, White is 100, and
Gamma is 0.60.
To display the values for Gamma and Black/White levels
choose Show Values and to display the Gamma Curve
choose Show Gamma Curve .
To type manually precise values for all the basic
controls choose Edit Values .
Image Contrast: To obtain the best image, the contrast indicators
Black/ White Levels
(black , left, and white , right) should be aligned
with the limits of the brightness distribution as shown in
the example below.
 Right-click in the histogram and check Auto White
and/or Auto Black from the sub-menu.
21
Leica DFC Cameras – Image Acquisition Guide