Multi-Zone Af Measuring Beam; Wireless Remote Flash Mode - Metz MECABLITZ 58 AF-2 Canon Bedienungsanleitung

18 Multi-zone AF measuring beam

The multi-zone AF measuring beam
camera when the ambient lighting conditions become inadequate for automatic
focusing. It projects onto the subject a striped pattern that the camera can use to
focus. Depending on the camera's activated AF sensor, the AF beam has a range
of approximately 6 m to 9 m (with a standard 1.7/50 mm lens). The maximum
flash range is reached with the camera's central AF sensor. Parallax error bet-
ween lens and AF measuring beam limits the close-up range with the AF measu-
ring beam to approximately 0.7 m to 1 m.
If the multi-zone AF measuring beam
the „single AF (S)" autofocus mode must be set on the camera and the
flash unit must indicate flash readiness. Some camera models support
only the camera's internal AF measuring beam. In this case, the multi-
zone AF measuring beam
case of compact cameras; see the camera's operating instructions).
Low-speed zoom lenses can significantly curtail the range of the AF measuring
beam.
Some cameras support the AF measuring beam in the flash unit only with the
camera's central AF sensor. If a peripheral AF sensor is selected, then the AF
measuring beam will not be activated in the flash unit.
140
is activated in the flash unit by the
is to be activated by the camera,
of the flash unit is not activated (as in the

19 Wireless remote flash mode

Wireless remote operation is compatible with the Canon E-TTL remote system.
The remote system consists of a master flash unit on the camera and one or more
slave flash units. The slave flash unit(s) is/are triggered by wireless remote con-
trol by the secondary reflector of the master flash unit. The light of the secondary
reflector does not contribute to the exposure of the shot in this case.
The slave flash unit is assigned to one of three possible groups (A, B or C) (see
diagram on the inside back cover). Each of these groups may consist of one or
more slave flash units.
The entire remote system can be operated by means of either E-TTL or M opera-
ting modes.
Any change to the flash operating mode has to be made on the master in
slave group A. The change made in slave group A then applies to the
whole system, i.e. for slave groups B and C and on master M.
The choice of flash mode (E-TTL or manual "M") for slave group A determines
the flash mode used by the complete remote system.
So that multiple remote systems in the same room do not interfere with one anot-
her, there are four independent remote channels to use. Master and slave flash
units belonging to the same remote system must be set to the same remote chan-
nel. The slave flash units must be able to receive the light from the master flash
unit using the integrated sensor for cordless remote control
Remote flash mode also supports second curtain synchronisation. In
remote flash mode, the maximum flash range is not indicated on the flash
unit's display panel.
.