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If a photograph is taken before flash readiness appears,
then the flash unit will not be triggered. If the camera
has already switched to flash sync speed, the shot may
have the wrong exposure.
4.2 Correct exposure indication
If the exposure is correct, then button STATUS-LED
lights up in red for around 3 seconds if the photograph
has been correctly exposed in flash modes TTL;
(see 5.1)!
If there is no exposure control indication after the shot
in the TTL mode of operation, then the photograph was
underexposed.
In that case, you must:
- set the next smaller f-stop (e.g. use f-stop 8 instead
of 11), or
- reduce the distance to the subject or to the reflection
surface (e.g. for indirect flashes), or
- set a higher ISO value on the camera.
5 Flash modes
Depending on the camera or flash unit type, various TTL
flash modes and the SLAVE flash mode are available.
The video light can be switched on for videos.
The flash mode is set by using the assigned TTL, SLAVE
or LED button.
5.1 TTL operating modes
The TTL flash modes offer a simple method of obtaining
very good flash shots. In TTL flash mode, the exposure is
measured by a sensor in the camera. It measures the
light reflected by the subject through the lens
(TTL = "Through The Lens"). Here the camera automati-
cally determines the flash performance required for a
correct exposure of the shot.
The advantage of the TTL flash mode is that all factors
influencing exposure (e.g. filters, change of aperture
and focal length changes with zoom lens, extensions for
close-ups, etc.) are automatically taken into account in
adjusting the flash light.
If the shot is exposed correctly, the STATUS LED
lights
up in red for approx. 3 seconds (see 4.2).
To define the range of the flash unit, see table
(page 160).
