Flash Modes („Mode"); Ttl-Flash Modes; Manual Flash Mode - Metz MECABLITZ 48 AF-1 digital Mode D'emploi

7 Flash modes („Mode")
Depending on the type of camera different TTL flash modes, manual flash mode
and high-speed synchronisation FP or HSS are available. Therefore, data trans-
fer between flash unit and camera is necessary before setting the flash mode,
e.g. by actuating the shutter release. The flash mode is set by using the „Mode"
button.

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 perfor-
mance required for a correct exposure of the shot. The advantage of the TTL
flash modes is that all factors influencing exposure (filters, change of aperture
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 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)! In analogue cameras there must be a
film in the camera to test the TTL function!
P-TTL flash mode
The P-TTL flash operation is a type of digital TTL flash operation and a further
development of the TTL flash operations of analogue cameras. During shooting,
the flash unit emits an almost imperceptible metering preflash prior to the actual
exposure. The light reflected by the metering preflash is evaluated by the
camera. The camera adjusts the subsequent flash exposure to the photographic
situation according to the evaluation (see the camera operating manual for more
details).
74
Setting procedure
• Press „Mode" until „P
The setting takes effect immediately. After about 5 seconds the display stops
flashing and the setting is saved automatically. „P
TTL flash mode
This analogue flash mode is supported by older analogue cameras. It is the nor-
mal TTL flash mode (TTL flash mode without preflash).
Setting procedure
• Press „Mode"
The setting takes effect immediately. After about 5 seconds the display stops
flashing and the setting is saved automatically. „
The normal TTL flash mode cannot be set on cameras supporting P-TTL
flash modes!
Automatic TTL and P-TTL Fill-in flash mode
The automatic TTL or P-TTL fill-in flash mode is activated by most cameras when
will flash „OK" for
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 combination
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.

7.2 Manual flash mode

In the manual flash mode M , the flash unit emits the full uncontrolled amount of
light if no partial light output has been selected. The specific photographic situa-
TTL
" flashes in the display.
TTL
TTL
until „ " flashes in the display.
TTL
" appears in the display.
" appears in the display.