Leica M 240 Instructions Manual page 70

EN Notes:
• Studio flash systems may have a very long burning time.
Therefore, when using them it may be useful to select a slower
shutter speed than
flash triggers for "unchained flash", as the radio transmission
can cause a delay.
• The following sections describe only those settings and
functions that are available when using this camera with
system-compatible flash units.
• An exposure compensation set on the camera (see p. 186)
only influences the measurement of available light! If you want to
simultaneously use compensation of the TTL flash exposure
metering in flash mode – in parallel or in the opposite direction,
you must make this additional setting (on the flash unit).
• More details of flash use, in particular for other flash units not
specially adapted to this camera and for different flash modes
can be found in the relevant manuals.
194
/ s. The same applies to radio controlled
1
180
Settings for camera-controlled automatic flash mode
After the flash unit in use has been turned on and set to guide
number control mode (e.g. TTL or GNC), the following actions on
the camera are necessary:
1. Before taking each flash picture the exposure metering is first
performed by gently pressing the shutter release, so that the
display in the viewfinder shows the shutter speed or switches
to the light balance. If this stage is missed out by fully
depressing the shutter release in one quick movement, the
flash unit will not fire even if required.
2. The shutter speed dial must be set to
speed ( / s), or to a slower shutter speed (including
1
180
aperture priority mode the camera automatically switches to
the flash sync speed set in the menu, or to the time range (see
"Selecting the sync speed / the sync speed range", p. 196).
The shortest flash sync speed must be taken into account as
this determines whether a "normal" flash is fired or an HSS
flash (see p. 196).
3. The desired aperture, or the aperture required for the relevant
distance to the subject, must be set.
A , to the flash sync
). In
B