Exposure control
The LEICA CM offers you a choice of two modes for controlling the exposure, which you can use to adjust the camera perfectly to
your preferred working method or the relevant subject. You can choose between fast, convenient and reliable program mode, i.e. ful-
ly automatic, and aperture priority mode, for easy specification of the desired depth of field.
Programmed automatic exposure control mode
Programmed automatic exposure mode is the right mode to choose for uncomplicated photo-
graphy. It is ideal when you want the camera to be ready to use at all times, particularly for quick
snapshots or for moving objects, i.e. when there is no time to make individual settings. It controls
the exposure by automatically setting an appropriate combination of shutter speed and aperture.
To make the setting, turn the lever 10 clockwise as far as it will go, until it engages in the position
marked P.
Displays
In the data panel
In the viewfinder (in the digital display)
appears as con-
When the shutter release button is pressed to the pressure point, the speed and aperture values set by
P
firmation of the
the camera appear alternately.
set function
The display disappears immediately when the shutter release button is released, otherwise after 4 s, i.e.
after both values have been displayed 3 x.
If the available brightness exceeds the working range of the exposure control system, this is indicated
by a flashing
In the modes with slower shutter speeds and those with no flash (see "Selectable modes", p. 89), the
camera automatically switches to long time exposure (
nating display of
picture is taken.
Note: At full stop (2.4) shutter speeds of up to
.
(for the largest aperture) and
1
/
s are available, at f/4 up to
500
83
) at low brightness. This is indicated by the alter-
B
(representing exposure times >30 s) before the
1
/
s and at all other apertures up to
750
10
1
/
s.
1000