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Flash photography
General information on flash exposure
metering and control
The LEICA S2 determines the required flash power by firing one
or more ranging flashes in quick succession, fractions of a sec -
ond before taking the actual picture. Immediately after this, at
the start of exposure, the main flash is fired.
All factors that influence the exposure (such as picture filter and
changes to the aperture setting, distance, reflective surfaces,
etc.) are automatically taken into account.
Compatible flash units
All flash units and studio flash systems that comply with the cur-
rently valid ISO standard 10330 and the older DIN 190141 (posi-
tive polarity at X contact) can be connected to the LEICA S2.
Studio flash systems and other flash units with flash cable and
standard flash plug can be connected via the flash connection
socket (1.30).
The following flash units allow all of the functions described in
this manual to be used when attached to the LEICA S2:
1
If, for example, you want to connect a studio flash system to the LEICA S2 that
does not comply with the ISO standard, contact Leica Camera AG's customer
service department (for address see p. 64) or the customer service depart-
ment of a Leica agent.
• The LEICA SF 58 system flash unit (order no. 14 488). With a
maximum guide number of 190 (ft, in 105mm setting), an
automatically controlled zoom reflector, an optional second
reflector and many other functions, it is both powerful and
versatile. Thanks to its permanently attached flash foot with
associated additional control and signal contacts, which are
used to automatically transfer a range of data and settings, it
is very easy to use.
• Flash units which satisfy the technical requirements for Sys -
tem Camera Adaption (SCA) System 3000, are fitted with the
SCA-3502-M5 adaptor
2, 3
, allow guide number control and are
HSS compatible (see p. 44). Other commercially available
flash attachments with standard flash foot
4, 5
and positive
center contact, and which are fired by the center contact
(X-contact, 1.30a), can also be used (without TTL flash con-
trol). We recommend the use of modern thyristor-controlled
electronic flash units.
2
When using the SCA-3502 adapter (version 5 onwards) the white balance (see
p. 29) can be set to Auto for correct color reproduction.
3
The use of flash systems from other camera manufacturers and SCA adapters
for other camera systems is not recommended as their differing contact positi-
ons and assignments can result in malfunctions or even damage to the camera.
4
If flash units not specially designed for the LEICA S2 are used, the white balance
on the camera should be manually set to if required.
5
The aperture specified on the lens and the sensitivity may need to be entered
manually on the flash unit.
Flash sync speed
The flash sync speed of the LEICA S2 is
1
/
125
s for conventional
flash equipment with focal plane shutter, or
1
/
500
s with central
shutter. With system compatible, HSS compatible (see p. 44)
flash units, all faster shutter speeds can also be used.
Studio flash systems in particular often have luminosity times
that are considerably longer than the specified sync speeds. In
order to take full advantage of the light quantity provided by
these flash units, slower shutter speeds are recommended.
Selecting the sync speed / the sync speed range
The LEICA S2 allows you to subtly adjust the shutter speed used
for flash photography in conjunction with speed priority and
automatic program exposure modes to the lighting conditions
for the relevant subject or to suit your picture composition
ideas. You can choose between one automatic and several
manual settings to do this.
Setting the function
1. In the CAMERA section of the menu (see p. 13/22), select
Auto Slow Synch. (5.6), and
2. select the automatic lens-specific setting – 1/f (focal
length), or whether you want to specify a particular shutter
speed yourself – Manual Setting – in the submenu.
3. In the Manual Setting submenu, set the range of shutter
speeds permitted by specifying the fastest speed permitted.
Notes:
• 1/f results in the slowest shutter speeds based on the rule of
thumb for blur-free pictures taken from the hand, e.g.
1
/
60
s
with the Summarit-S 70mm f/2.5 ASPH. However, in the
Auto Slow Synch menu it is limited to
1
/
125
s even if the focal
length used is longer.
• The setting field in the Manual Setting submenu initially con-
tains the „default setting“ of 1/f.
Compatible flash units / Flash sync speed / Selecting the sync speed / the sync speed range / 43
Inhalt_GB.qxp:Leica M8 deutsch 11.12.2009 10:24 Uhr Seite 43
47


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