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Funcionamiento del flash TTL
Sensor
Sensore
Sensor
Fig. 5 / Grabado 5
m
1
Fig. 6 / Grabado 6
TTL flash mode
Modo flash TTL
TTL
mm
Auto Zoom
4. Operating modes of the mecablitz
4.1 TTL flash mode (Fig. 5)
The TTL flash mode is a very simple way to
achieve excellent flash shots. In this mode expo-
sure readings are taken by a sensor built into the
camera which measures the light reaching the film
through the camera lens (TTL). The electronic con-
trol circuit within the camera transmits a stop sig-
nal to the mecablitz as soon as the film has been
exposed by the correct amount of light, thereby
instantly interrupting the flash. The advantage of
this flash mode is that all factors influencing cor-
rect exposure of the film (filters, change of aper-
ture and focal length with zoom lenses, extensions
for close-ups, etc.) are automatically taken into
account. You need not worry about setting the
flash, the camera's electronic system automatically
determines the correct amount of flash light re-
quired. For the maximum flash range please
observe the distances given in the LC display of
the mecablitz (see 5.4) and the information in sec-
tion 5.5. If flash exposure was correct, the LC dis-
play of the mecablitz indicates "o.k." for about
3 sec. (see 4.4).
The TTL flash mode is supported by all camera
modes (e.g. Program "P", Aperture Priority Mode
"A", Shutter Priority Mode "S", Vari or Scene
Modes, Manual Mode "M", etc.).
For analog cameras, a film must be loaded in
the camera to test the TTL function. When sel-
ecting the film please check whether limits
regarding maximum film speed or ISO value
(e.g. maximum ISO 1000) are applicable to
the given camera when in TTL mode (refer to
the camera's operating instructions)!
Various digital SLR cameras (e.g. series D1
and D100 models) do not support the normal
TTL flash mode of analog cameras. In such an
event the D-TTL flash mode (see 4.2) or D-TTL 3
D flash mode (see 4.2.1) must be used.
Setting procedure for TTL mode (Fig. 6)
• Turn on the mecablitz by its main switch.
1
Continue depressing the "Mode" key until "TTL"
flashes on the LC display.
• The setting becomes immediately effective. The
LC display returns to its normal state after
approx. 5 sec.
18
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