Bedienungsanleitung Leica S2 (Seite 47 von 89) (Englisch)

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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:

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.

When using the SCA-3502 adapter (version 5 onwards) the white balance (see

p. 29) can be set to Auto for correct color reproduction.

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.

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.

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

125

s for conventional

flash equipment with focal plane shutter, or

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.

with the Summarit-S 70mm f/2.5 ASPH. However, in the

Auto Slow Synch menu it is limited to

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

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