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16. Autofocus measuring beam
When operating the flash unit with an SCA adapter from the SCA 3002
system, depending on the camera type, the AF measuring beam in the con-
trol unit is activated. A striped pattern is projected on to the subject, on which
the AF system of the camera focuses. The maximum range depends on the f-
number of the lens. With a standard lens the range varies from 0.7 m to
approx. 6 m …. 9 m (for more details see the operating instructions of the
camera and SCA adapter).
The AF measuring beam only supports the central AF sensor of the camera. If
a decentral AF sensor of the camera is chosen manually or automatically, the
AF measuring beam may not be activated, depending on the camera type!
Most cameras support the AF measuring beam only in the mode
“Single AF”!
17. Metz remote mode
Remote mode is the cordless remote control of additional flash units. In this
mode, the external flash unit on the camera manages, as a controller, the
additional flash units as slaves in such a way that the automatic exposure
control of the controller extends to all the slave flash units.
The remote mode works with weak flash pulses. For this reason the
ambient light should be as low as possible. The working area
depends on the subject and ambient light and comprises roughly 5
metres.
The Metz remote mode is supported by various flash unit types:
Mecablitz type Controller functionn Slave function
76 MZ-5 digital yes yes
70 MZ-5 yes yes
70 MZ-4 yes yes, with SCA 3083
54 MZ-... yes yes, with SCA 3083
50 MZ-5 yes ja
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45 CL-4 digital no yes, with SCA 3083
44 MZ-2 no yes, with SCA 3083
40 MZ-... yes yes, with SCA 3083
34 CS-... no yes
28 CS-2 digital no yes
The flash units mecablitz 76 MZ-5 digital, 70 MZ-5 and 50 MZ-5
automatically become slave flash units if the handle mount is operated
without a control unit.
If the handle mount of these units is operated with a control unit, then the
control unit must be equipped with the SCA adapter SCA 3083 (optional
extras) for the slave flash mode!
Please note that the sensor ብ for the cordless Metz remote mode in the slave
flash unit must be able to receive the light of the controller!
In the Metz remote mode there is no maximum flash range indication in the
display!
When taking close-ups with a small f-number and bright ambient light, it is
possible that the start pulse of the controller is sufficient for the correct illumi-
nation and no further light emission is carried out. The slaves are then no
longer triggered or with a time delay (approx. 0.7 sec) and so only indicate
their flash readiness without making a contribution to the illumination.
There are three ways to solve the problem:
• reduce the ambient light.
• increase the f-number (e.g. aperture 8 instead of 5.6).
• set a lower ISO value on the camera or select a film with a lower ISO
value.
In order to prevent two remote systems in one room interfering with each
other, two different addresses can be selected on the controller, which are
assumed by the flash units automatically after a test flash.
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705 47 0041.A4 76MZ-5 digital 15.03.2007 8:28 Uhr Seite 88