Leica M10 Instructions Manual page 72

EN
Settings for camera-controlled automatic TTL flash mode
On the flash unit:
1. Switch on the flash unit used, and
2. set to guide number control mode (e.g. TTL or GNC).
On the camera:
1. Switch the camera on, or tap the shutter button if the camera
has switched off automatically. If this is missed out by fully
depressing the shutter button in one quick movement, the
flash unit will not fire even if required.
2. Set the shutter speed dial to
or to a slower shutter speed (including
In the aperture priority mode, the camera automatically sets a
shutter speed within the time range selected in the menu (see
"Selecting the sync speed range"/"Selecting the firing
moment", see p. 182). The shortest flash sync speed must be
taken into account as this determines whether a "normal" flash
is fired or an HSS flash.
3. Set the desired aperture, or the aperture required for the rele-
vant distance to the subject.
Note:
If the automatically controlled or manually set shutter speed is
faster than ⁄ s, the flash is not fired unless the flash unit is
1
180
HSS-compatible.
184
, to the flash sync speed ( ⁄
A 1
180
).
B
Flash exposure displays in the viewfinder with system-compat-
ible flash units
A flash-shaped LED appears in the viewfinder as confirmation and
to display the various operating conditions. This LED appears to-
gether with the displays for exposure metering for the ambient light
level, described in the relevant sections.
In TTL flash mode
• does not appear despite the flash unit being switched on and
ready for use:
s), A faster shutter speed than
and the connected flash unit is not HSS-compatible. In such cas-
es the camera will not fire the flash unit even though it is
switched on and ready for use.
• flashes slowly (at 2Hz) before the picture is taken:
The flash unit is not yet ready for use.
• is lit up before the picture is taken:
The flash unit is ready for use
⁄ s is set manually on the camera
1
180