Strobe Flash Mode - Leica SF 58 Notice D'utilisation

Strobe flash mode

In strobe flash mode, several flashes are emitted in quick succession while the
shutter of the camera is open. As a result, those parts of the subject which
moved during the shot and were primarily illuminated by the flash appear in
the picture several times. This is particularly interesting in movement studies
and effect shots.
Note:
To support the effectiveness of the technique, we recommend shooting the
main subject against the darkest possible background (which the flash does
not illuminate).
Since the overall output available for strobe mode has to be divided between
several flashes, this function can only be realized with a partial light output of a
max. of 1/4 or less. Consequently, the possible distances to the main subject
are correspondingly shorter. For this reason, and because the output of the
individual flashes cannot be/is not further changed, the exposure must be
determined here as in the manual mode (see p. 60).
The output of the individual flashes themselves is determined by the two pos-
sible settings – number and frequency of flashes. Both the frequency of the
flashes (flashes per second) as well as the number of flashes can be selected.
Setting the function on the flash unit (see also "Menu navigation / setting
the functions", p. 46)
Mode
1. Choose the menu and
2. select from the list.
Strobe flash number and frequency
The flash number (N) can be set from 2 to 50, the flash frequency (f) from 1 to
50 in increments of one. The maximum possible manual partial light output is
automatically adjusted at the same time. It depends on ISO and aperture value.
If you desire short flashes, you can manually reduce the partial light output to
the minimum value of 1/256 (see p. 62).
The valid distance for the set parameters is displayed on the monitor. However,
if you wish to photograph your main subject from a different distance (e. g. for
compositional reasons or because the expansion of the sequence of move-
ments requires this), the distance value displayed can be adjusted by changing
the f-stop or the partial light output.
Setting of flash frequency and number (see also "Menu navigation / set-
ting the functions", p. 46)
1. In the exposure parameter menu
2. the desired respective value.
Note:
The secondary reflector is not supported in strobe flash mode. Even if it is switched
on, it does not flash in strobe flash mode! The symbol for the secondary reflector is
not displayed on the monitor!
61
Set
, select the menu item N or f and