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

7 Flash modes („Mode")
TTL
TTL
F 5,6
7,5 105
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 per-
formance 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 indica-
tion will flash „OK" for about 5 seconds (see 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)!
88
Depending on the type of camera different
TTL flash modes, manual flash mode and
high-speed synchronisation FP or HSS are
available. Therefore, data transfer between
flash unit and camera is necessary before
setting the flash mode, e.g. by actuating the
shutter release.
button.
The TTL flash mode with measuring preflash is a further development of the stan-
dard TTL flash mode of analogue cameras. During the shot and before the actu-
al exposure, one or more almost indiscernible preflashes are executed by the
flash. The light reflected by the preflash is evaluated by the camera. According
to the evaluation, the subsequent flash exposure will be adjusted by the camera
to suit the situation (see the camera's operating manual).
☞ Depending on the camera model, the preflashes precede the main flash
by such a short interval that they practically cannot be distinguished
from the main flash! The preflashes do not contribute to the lighting of
the shot.
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 automatically. „
the display.
Automatic TTL Fill-in flash mode
The automatic TTL flash mode is activated by most
cameras when the automatic programme P is selected and by Vari or subject
programmes during daylight (see camera operating manual).
Fill-in flash mode overcomes troublesome shadows and produces a more balan-
ced exposure between subject and background with contre-jour shots. The
camera's computer-controlled metering system sets the most suitable combina-
tion of shutter speed, aperture and flash output.
Ensure that the contre-jour light source does not shine directly into the
☞
lens, as this will interfere with the camera's TTL metering system!
There is no setting or display for automatic TTL fill-in flash in the flash unit.
TTL TTL
7,5 105
m
Zoom
TTL
" appears in
F 5,6
mm