Flash Modes („Mode"); Ttl-Flash Modes - Metz MECABLITZ 50 AF-1 digital Pentax Bedienungsanleitung

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
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
indication
(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!
will flash „OK" for about 5 seconds
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).
Setting procedure
TTL
• Press „Mode" until „P " flashes in the
display.
The setting takes effect immediately.
After about 5 seconds the display stops flashing
and the setting is saved automatically. „P
appears in the display.
TTL flash mode
This analogue flash mode is supported by older analogue cameras.
It is the normal TTL flash mode (TTL flash mode without preflash).
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. „
appears in the display.
The normal TTL flash mode cannot be set on cameras supporting P-TTL
flash modes!
P TTL
P
TTL
7,5 105
m mm
Zoom
TTL
"
TTL
TTL
7,5 105
m mm
Zoom
TTL
"
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