Correct Exposure Indication; Flash Range Indication; Automatic Adjustment Of The Flash Range Indication; Flash Synchronisation - Metz MECABLITZ 58 AF-2 digital Manual De Instrucciones

13 Correct exposure indication

✴ The correct exposure indication „OK"
if the shot was correctly exposed in TTL flash mode or
automatic flash mode.
If no „OK" exposure indication
shot, then the shot was underexposed. You will need to repeat the shot with the
next smaller f-number (for example, f/8 instead of f/11), or the distance to the
subject or reflecting surface (for example with bounce flash) will have to be
reduced. Note the maximum flash range indicated on the display of the flash
unit (see 14).

14 Flash range indication

TTL F 4.5
14 m
AZoom 70
14 m ISO 200
most photographic situations. Strong deviations from this reflection factor, as in
the case of highly reflective or poorly reflective subjects, may affect the flash
range.
In TTL- and automatic flash mode, the subject should be in the middle third of
the indicated range. This will give the automatic exposure control sufficient sco-
pe for compensation.
To avoid overexposure, the minimum distance from the subject should be no less
than 10% of the indicated value. An adjustment can be made to a particular
photographic situation by changing the aperture setting, for example.
In manual flash mode M, the distance that must be maintained from the subject
for correct flash exposure is indicated. An adjustment to the photographic situa-
tion at hand can be achieved by, for example, changing the aperture setting on
the lens and by selecting either full light output or „P" for a partial light output
level.
only lights up
appears after the
The maximum flash range is indicated on
the display panel of the flash unit. The
value indicated relates to subjects with a
reflection factor of 25%, which applies to
☞ The flash range can be expressed in either meters (m) or feet (ft) according
to the chosen setting (see 7.8). There is no flash range indication in remote
mode or when the main reflector is swivelled or tilted.

Automatic adjustment of the flash range indication

The cameras transfer the flash parameters (e.g. lighting sensitivity ISO, lens
focal length, aperture and exposure correction) to the flash unit. The flash unit
automatically adjusts its settings accordingly. The maximum flash range is calcu-
lated from the flash parameters and the guide number and indicated on the
display.
This requires an exchange of data between camera and flash unit, effected for
example by tapping the shutter release.

15 Flash synchronisation

15.1 Normal synchronisation

In normal synchronisation the flash unit is triggered at the beginning of the shut-
ter time (first curtain synchronisation). Normal syn-
chronisation is the standard mode on all cameras. It is
suitable for most flash shots. The camera, depending
on the mode being used, is switched to the flash sync
speed. Speeds between 1/30 sec. and 1/125 sec.
are customary (see the camera's operating instruc-
tions). No settings are necessary on the flash unit, nor
is there any display for this mode.
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