Leica M Instruction Manual page 210

Review with histogram
Press the INFO button once (starting from normal review mode), to
display the histogram. It appears in the lower half of the picture.
You can choose between two types of histogram: Either related to the
total brightness ( ), or related to the three color channels
Standard
red/green/blue ( ).
RGB
Setting the function
1. In the main menu (see p. 154/246) select
(page 3, section), and
SETUP
2. Select the desired option in the sub-menu.
Notes:
• The histogram is available when viewing both the entire picture and
just one section of it (see p. 208), but not when viewing several
reduced pictures simultaneously (see p. 211).
• The histogram always relates to the section of the picture currently
displayed (see p. 208).
• However, the
Histogram
208
histogram is not available in live view mode.
RGB