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If E-TTL is still not shown on the display: First
set the flash mode TTL using the UP ̆ and
DOWN ̄ buttons. Having done this, "ETTL"
will also appear in the display. Next select
"ETTL" using the UP ̆ and DOWN ̄ buttons.
• Now press the "Return" button.The display
switches back to the normal setting. If the
"Return" button is not pressed, the display
switches back to the normal setting after about
5 seconds.
3.3 HSS short-term synchronisation
With HSS short-term synchronisation, it is also
possible to operate the flash using shorter flash
synchronisation time shutter speeds.
Certain makes of camera (see operating instruc-
tion), mecablitz 45 CL-4 digital and 54 MZ-... sup-
port short-term synchronisation in E-TTL and
manual flash modes.
In some systems, short-term synchronisation
can in some cases reduce the flash factor and
as a result the range of the flash to a signifi-
cant extent. In addition, the flash factor also
depends on the camera shutter speed! When
set to HSS short-term synchronisation mode,
no filter attachments (diffusers, bouncers,
grey-scale or colour filters) should be placed in
front of the reflector with the mecablitz 54 MZ!
In HSS short-term synchronisation, flash ope-
ration is not possible with a second reflector!
Adjustment procedure
• Switch on flash and camera.
• Lightly touch the shutter release to trigger the
exchange of data between the flash and the
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