Metz Mecablitz 45 CL-4 - Manual (Page 45)

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Adjusting procedure for TTL flash mode:
• Adjust the camera according to the manufacturer’s operating instructions.
• Turn the adjusting knob for film speed
ተ until the white marker is positio-
ned opposite the ISO film speed so that the distance range can be read off.
The film speed must also be set on the camera and, if necessary, on the
SCA adapter.
• Fit the flashgun with the appropriate SCA adapter and mount on the
camera.
• Switch on the flashgun with the main switch ቪ.
• Turn the selector dial to TTL.
The distance ranges can be directly read off the aperture calculator, or
taken from Table 3, page 77 .
To check the range, the flash can only be fired by the camera and not
by way of the manual firing botton on the flashgun (where possible
the camera should be adjustet to multiple exposure.
4. Automatik Flash Mode
In the automatic flash mode the photosensor measures the light reflected from
the subject. The flash is cut off as soon as sufficient light has been emitted for
correct exposure.
In this manner there is no need to calculate and set a new aperture when the
distance is changed, provided that the subject remains within the indicated
automatic flash range.
The photosensor of the flashgun must be directed at the subject, regardless of
the direction at which the main reflector is pointing. The photosensor has a
measuring angle of approx. 25°, and it only measures the actual amount of
light emitted by the flashgun.
Six working apertures are available in the automatic flash mode.
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Adjusting procedure for the automatic flash mode:
Example:
Flash-to-subject distance: 5 m
Film speed: ISO 100/21°
• Adjust the camera according to the manufacturer’s operating instructions.
• Turn the adjusting knob for film speed
ተ until the white marker is positio-
ned opposite the ISO film speed.
Under due consideration of the maximum flash range, a distance of 5 m
permits selection of the auto apertures f/8, f/5.6, f/4 and f/2.8.
• Switch on the flashgun with the main switch ቪ.
• Set the selector dial to one of the green identified auto apertures. The set-
ting line assigns the adjusted f-stop with the corresponding maximum flash
range on the distance scale. The minimum flash-to-subject distance is
approx. 10% of the maximum flash range.
• Adjust the same aperture on the flashgun and the camera.
To achieve the shortest possible depth-of-field (as required in portraiture)
we recommend an aperture of f/2.8. For group shots where there can be
several rows of people behind each other, we recommend an aperture of
f/8.
• Wait for flash readiness - the green LED lights up.
The subject should be within the middle third of the distance range.
This gives the electronic control sufficient scope for compensation
should this be necessary.
There is a certain measure of overlap between the individual automatic aper-
tures. As a result of this overlap it is always possible to place the subject wit-
hin the middle third of the range.
CAUTION with zoom lenses!
Due to their design they can cause a loss of light in the order of up to
one f-stop. Furthermore, the effective aperture can also vary, depen-
ding upon the adjusted focal length. This must be compensated by
manually correcting the aperture setting on the flashgun!
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703 47 0149-A3 45CL-4 14.03.2006 10:08 Uhr Seite 45