Preface - Metz mecablitz 40 MZ-2 Servicehandbuch

Technik und Service Seite: 24
Technology and Service Page: 24
mecablitz 40 MZ-2
ENGLISH

1. Preface:

The mecablitz 40 MZ-2 is the first Metz system flashgun with full microprocessor control on the
market. From the technological viewpoint, this flashgun is thus very different from the conventional
flashguns.
The mecablitz 40 MZ-2 has two independent converter circuits; the so-called auxiliary converter
ensures that the supply voltages for some important parts of the circuit remain stable even when
the flash capacitor is being charged, an operation which places a heavy load on the power
source. The two converters are supplied with power either by four alkaline-manganese batteries,
type IEC LR6 (mignon or pen cells, size AA), by four rechargeable NiCad cells of the same size (IEC
KR15/51), or by four lithium batteries (type FR6L91).
Furthermore, the mecablitz 40 MZ-2 can be used together with the Powergrip G15 (in conjunction
with a sync cable or adapters of the SCA 300 system) or with the Powergrip G16 (in conjunction
with a sync cable or adapters of the SCA 300 or SCA 3000 system). In such cases, however, care
must be taken that batteries are not installed simultaneously in the Powergrip and the flashgun.
The illumination angle of the integrated power zoom reflector can be adjusted to match camera
lens focal lengths of 24mm and above. This adjustment is carried out either manually on the
flashgun or automatically by the system camera, with the aid of the SCA 3000 adapter.
The automatic exposure control has a total of 12 working apertures whose related flash ranges are
displayed, together with other important information, on the LC display on the back of the
flashgun.
In manual mode, one of 25 partial light output settings can be preselected. These partial light
output settings can also be selected in other operating modes in order, for example, to restrict the
maximum amount of light emitted. Amongst other things, this facility permits winder and motor
drive operation with controlled light output levels.
In stroboscopic mode, the number of flashes and the frequency at which they are emitted can be
set within a wide range.
The audible signal for flash readiness and exposure control, and the alarm tone for incorrect
settings, can be activated individually and stored separately for each program position.
In view of the large number of camera models available and the related variety of settings, the
mecablitz 40 MZ-2 offers, for the first time, a program memory. This permits frequently used settings
to be stored in a total of nine program positions, from which they are easily retrieved when
needed.
The new SCA 3000 system is a further development of the proven SCA 300 system. The flashguns of
this new system are backward-compatible, and can thus also be used with all SCA 300 adapters.
The new SCA 3000 adapters permit system-compatible adaption of cameras offering special flash
functions which could not be used with the old system, which means that these cameras can now,
for example, automatically control an AF measuring flash or the power zoom reflector now
integrated into the flashgun. If the camera transfers the selected aperture and the film speed to
the flashgun, the usable flash range is displayed on the flash gun in all operating modes, including
TTL flash mode. This display depends on the selected operating mode and takes, for example, the
reflector position into account.