Operating Modes (Mode Menu); Adjusting Procedure For Flash Operating Modes; Ttl-Flash Modes - Metz MECABLITZ 58 AF-1 Manual De Instrucciones

5 Operating modes (mode menu)

Depending on camera type, various
TTL
without preflash, preflash, ADI flash control), Automatic
and Stroboscope . Therefore, data transfer between flash unit and camera is
necessary before setting the flash mode, e.g. by actuating the shutter release.
Depending on the type of camera, other flash modes may be supported.
These flash operating modes can be selected and activated in the mode
menu following a data transfer with the camera. Depending on the
system, some camera models (depending on the camera's operating
mode) only support the TTL flash mode. Other flash modes (automatic A,
manual M etc.) cannot be selected or activated!

5.1 Adjusting procedure for flash operating modes

• Press the „Mode" button until the word „Mode" appears on the display. You
can choose from the following operating modes:
TTL
TTL flash modes: Standard TTL without preflash, TTL preflash and ADI.
TTL
HSS TTL -flash mode with high speed synchronisation HSS
A
Automatic flash mode
M
Manual flash mode
M
HSS Manual flash mode with high speed synchronisation HSS
Stroboscope flash mode
• Set the flash mode of your choice (
using the UP and DOWN keys. The flash mode you choose is then high-
lighted. The settings take effect immediately.
• Press the „Return" button , and the display changes back to the normal
view. If the „Return" button is not pressed, the display will change back to
the normal view after about 5 seconds.
The flash parameters for ISO, aperture and lens focal length or mirror position
86
TTL
modes are available (Standard TTL
A
, Manual
TTL A M
, automatic , manual , etc.)
are set automatically, if the camera transfers the necessary data to the flash unit.
The range indicator on the display of the control unit matches the flash parame-
ters transferred from the camera.
M
,
If the camera does not transfer one or more flash parameters to the flash
unit, you will have to adjust these settings by hand (see 6).

5.2 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 auto-
matically taken into account in adjusting the flash light.
If the shot was correctly lit, the correct exposure indication
about 3 seconds (see 4.2).
The flash unit automatically supports the camera's TTL flash mode. There is no
special indication of the flash mode.
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 analogue cameras there must be a
film in the camera to test the TTL function!
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-
will flash „OK" for