Flash Modes („Mode"); Ttl-Flash Modes - Metz MECABLITZ 50 AF-1 Manual De Instrucciones

7 Flash modes („Mode")
TTL
TTL
20 35
m mm
Zoom
The flash mode is set by using the „Mode"

7.1 TTL-flash modes

The TTL flash modes offer a very simple method of achieving very good flash
shots. In these modes, exposure readings are taken by a sensor built into the
camera, which measures the amount of light through the camera lens
(TTL = „Through The Lens"). Here the camera automatically determines the flash
performance required for a correct exposure of the shot. The advantage of the
TTL flash modes is that all factors influencing exposure (filters, change of apertu-
re and focal length with zoom objectives, extensions for close-ups, etc.) are
automatically taken into account in adjusting the flash light.
If the shot was correctly lit, the correct exposure indi-
cation
4.2).
Please note whether there are limitations for
your camera in terms of film sensitivity for TTL
flash mode (for example, ISO 64 to ISO 1000;
see camera's operating instructions)! In analo-
gue cameras there must be a film in the camera
to test the TTL function!
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Depending on the type of camera different
TTL flash modes, manual flash mode and
high-speed synchronisation HSS are availa-
ble. Therefore, data transfer between flash
unit and camera is necessary before setting
the flash mode, e.g. by actuating the shutter
release.
button.
will flash „OK" for about 3 seconds (see
Preflash TTL and ADI metering
Preflash TTL and ADI metering are digital TTL flash operating modes and refined
versions of the TTL flash operation found in analogue cameras. When taking a
shot, an almost imperceptible measurement preflash is triggered by the camera
prior to the actual exposure process. The reflected light of the measurement pre-
flash is evaluated by the camera. Depending on the result of the evaluation, the
subsequent flash exposure is adapted by the camera to suit the given shot situa-
tion (see camera operating instructions for further details). In the case of ADI
metering, additional distance data from the lens is incorporated into the flash
exposure process. The selection and/or setting of the preflash TTL and ADI
metering operating modes are carried out on the camera (see camera operating
instructions).
TTL
The flash unit must be set to the
Setting procedure
TTL
• Press „Mode" until „ " flashes in the
display.
The setting takes effect immediately.
After about 5 seconds the display stops flashing and the setting is saved auto-
matically.
TTL
„ " appears in the display.
There is no setting or indicator for automatic fill-in flash operation on the flash
unit.
flash operating mode.
TTL
TTL
20
m
Zoom
35
mm