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5.4 Information in the LC display
The cameras transmit the ISO sensitivity, the focal length (mm), f-stop and
exposure correction to the flash unit which automatically adapts its settings
accordingly. It calculates the maximum flash range on the basis of its guide
number and the transmitted values. Flash mode, maximum flash range, aper-
ture and zoom reflector position are all indicated in the LC display of the
flash unit.
If the flash unit operates without having received data from the camera (e.g.
when the camera is switched off), then only the selected flash mode, the
reflector position and „M.Zoom“ are indicated. Aperture and maximum flash
range are only displayed if the camera transmits the corresponding data to
the flash unit.
Some cameras suppress the maximum flash range indication on the LC dis-
play of the flash unit in the event of high ISO values (e.g. ISO 6400) or
flash exposure corrections.The aperture is not indicated in the LC display of
the flash unit when the digital cameras Dimage 5 and Dimage7, 7i are
used.
5.4.1 Maximum flash range indication in TTL flash mode
The LC display of the flash unit indicates the maximum flash range. The indi-
cated value relates to a factor of 25 % of light reflection by the subject, which
applies to most photographic situations. Pronounced deviations from this re-
flection factor, e.g. highly reflective or poorly reflecting objects, can influence
the maximum flash range of the flash unit.
Always observe the maximum flash range indicated by the LC display of the
flash unit. The subject should be within approx. 40 % and 70 % of the indi-
cated value. This gives the electronic circuit sufficient scope for compensa-
tion. To avoid overexposure, the minimum flash-to-subject distance should not
be less than 10 % of the indicated value. Adaptation to the given photogra-
phic situation is possible by changing the aperture setting on the lens.
5.4.2 Maximum flash range indication in the manual flash modes
M and MLo
The LC display of the flash unit indicates the distance to be maintained for
correct exposure of the subject. Adaptation to the given photographic situa-
tion is achieved by changing the aperture setting on the lens and selecting
either „M“ for full light output or „MLo“ for partial light output (see 4.4).
5.4.3 Exceeding the display range
The flash unit can indicate a maximum range of 199 m or 199 ft. This dis-
play range can be exceeded in the event of high ISO values (e.g. ISO 6400)
and large aperture openings. An arrow or triangle after the distance value
indicates that the display range has been exceeded.
5.4.4 Blanking out the maximum flash range display
The LC display of the flash unit does not indicate any distances when the
reflector head is swivelled up or down out of its normal position!
5.4.5 Meter-Feet changeover (m - ft)
The maximum flash range indicated by the LC display of the flash unit can be
either in meter (m) or feet (ft). To change between the two, proceed in the fol-
lowing manner:
• Turn off the flash unit by its main switch.
• Keep the „Select“ key combination depressed (= „Mode“ key + „Zoom“ key).
• Turn on the flash unit by its main switch.
• Release the „Select“ key combination (= „Mode“ key + „Zoom“ key).
• The flash range indication changes from m to ft or from ft to m.
5.5 LC display illumination
Keep the „Mode“ or „Zoom“ key depressed for approx. 10 sec. to activate
the LC display illuminationof the flash unit. The LC display illumination is
switched off when a flash is triggered.
The settings on the flash unit are not changed when the above keys
are pressed for the first time!
54 AF-1 M 03.08.2004 10:53 Uhr Seite 61
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