Operation – LEICA SF 40 Flash User Manual
Page 37

EN
35
OPERATION
SWITCHING ON AND OFF
Switching on
Press the button
6
Displays when the flash unit is switched on
• The pilot LED
7
lights up in red initially, when the flash is ready it
turns green (after just a few seconds if there is su
ffi
cient battery
capacity).
• The Index LED
8a
lights up in white
• If the camera is appropriately equipped, flash readiness is
displayed in the viewfinder and/or on the monitor.
Note:
You can fire a test flash by pressing the pilot LED
7
.
Switching o
ff
Press the button
6
for approx. 1
s
Auto power o
ff
Around 2 minutes after the last flash shot or the last operation, the
flash unit switches back to standby mode to protect the battery
capacity in the
A
,
TTL
and
M
modes (see p. 39/39/41).
In the
SD
and
SF
modes (see p. 41), this is done after around 5
minutes.
• To indicate standby mode, the pilot LED
7
flashes in a 2-second
rhythm.
To reactivate the flash unit:
Tap the camera shutter release or press any button on the flash
unit
If the flash unit is not used for longer than 60 minutes, i.e. no
button or dial is operated and no flash fired, it switches itself o
ff
completely to prevent the batteries from discharging.
Notes:
• To protect against the electronics overheating, the flash unit is
automatically switched to standby mode for a few minutes after
a series of more than approx. 20 - 30 flashes in quick succes-
sion with a high energy level. To display this, the pilot LED
7
flashes in intervals of 1.5
s. The unit cannot be activated during
this cooling time.
• If the flash unit is not to be used for a prolonged period, we
recommended switching it o
ff
and removing the power sources.