Extended Zoom Mode; Af Measuring Beam - Metz MECABLITZ 54 AF-1 C digital Mode D'emploi

Returning to „Auto-Zoom"
There are various ways to return to „Auto Zoom":
• Continue pressing the „Zoom" key on the flash unit until „Auto Zoom" ap-
pears on the display. The setting becomes instantly effective. The LC display
is switched back to its normal state after approx. 5 sec.
Or:
• Briefly turn off the flash unit by its main switch. When the flash unit is
turned on again the display of the flash unit will indicate „Auto Zoom".

5.6.3 Extended zoom mode

The extended zoom mode (Ex) reduces the focal length setting of the flash
unit by one step compared with the focal length of the camera's lens! The
resulting wider light coverage inside rooms provides additional stray light
(reflections) to achieve softer flash illumination.
Example of extended zoom mode:
The focal length set on the camera lens is 35mm. The extended zoom mode
sets a 28mm reflector position on the flash unit even though 35mm continues
to be indicated on the LC display!
The extended zoom mode is only possible in the „Auto Zoom" mode with a
focal length setting of 28 mm and longer. Since the start position of the zoom
reflector is 24 mm, a focal length of less than 28 mm will cause „24" mm for to
flash on the LC display, thereby warning the user that the required reflector po-
sition for extended zoom mode cannot be set.
Shots with a 24 mm focal length of the lens will be correctly illumina-
ted right out to the image corners by the flash unit also in extended
zoom mode!
Turning on the extended zoom mode
• Continue depressing the „Select" key combination (= „Mode" key + „Zoom"
key) until „Ex" appears on the LC display.
• Continue depressing the „Zoom" key until „ON" flashes on the LC display.
• The setting becomes instantly effective. The LC display is switched back to
its normal state after approx. 5 sec.
After the setting procedure, the „Ex" symbol for extended zoom mode will
continue to be indicated on the LC display of the flash unit!
Please note that the wider illumination coverage in extended zoom
mode results in a diminished maximum flash range!
Turning off the extended zoom mode
• Continue depressing the „Select" key combination (= „Mode" key + „Zoom"
key) until „Ex" appears on the LC display.
• Continue depressing the „Zoom" key until „OFF" flashes on the LC display.
• The setting becomes instantly effective. The LC display is switched back to
its normal state after approx. 5 sec.
After storage in the memory, the „Ex" symbol for extended zoom mode will
no longer be indicated on the LC display of the flash unit.

5.7 AF measuring beam

The AF measuring beam is activated by the camera electronics when the ambient
lighting conditions are insufficient for automatic focusing. The AF beam projects a
striped pattern on to the subject, and the camera uses this pattern to focus auto-
matically. The AF beam has a range of approx. 6 m to 9 m (with a 50 mm/f/1.7
standard lens). Parallax error between lens and AF red light emitter limits the
close-up range of the AF measuring beam to approx. 0.7 m - 1 m.
The camera lens must be switched to AF so that the AF measuring beam can
be activated by the camera. The AF mode „Single AF" or „ONE-SHOT AF"
must be set on the camera (see the camera's operating instructions). Zoom
lenses with a lower initial aperture can significantly reduce the range of the
AF measuring beam!
The striped pattern of the AF measuring beam only supports the camera's cen-
tral AF sensor. Consequently, for the cameras EOS 1N, 1V, 3, 300, 50, 50E,
500N, IX and IX7, only the camera's middle AF metering area should be acti-
vated (see the camera's operating instructions).
If a decentral AF sensor is manually selected by the photographer, or automa-
tically by the camera, then the emitter of the AF measuring beam of the flash
unit will not be activated. In such instances some cameras will use the AF illu-
minator integrated in the camera (see the camera's operating instructions).
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