Metz AF-1 - Manual (Page 68)

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Ensure that the contre-jour light source does not shine directly into the
lens, as this will interfere with the camera’s TTL metering system!
There is no setting or display for automatic TTL fill-in flash in the flash unit.
7.2 Manual flash mode
In the manual flash mode M , the flash unit emits the full uncontrolled amount of
light if no partial light output has been selected. The specific photographic situa-
tion can be taken into account by adjusting the aperture setting or by selecting a
suitable manual partial light setting. The setting area ranges from P 1/1 to
P 1/128 in M mode and P1/1 - P1/32 in M-HSS mode. The display shows the
distance at which the subject is correctly lit (see 5.2).
Setting procedure
• Press „Mode“
ባ until „ “ flashes in the display.
The setting takes effect immediately. After about 5 seconds the display stops
flashing and the setting is saved automatically. „
“ appears in the display.
Manual partial light output levels
In manual flash mode
set the partial light output desired with the buttons
( + ) and ( - ). The setting takes effect immediately and is saved automatically.
The distance display is adjusted to the partial light output automatically (see 5.2).
Various camera models support the manual flash mode only in the
camera mode manual M! In other camera models an error message
appears in the display and the release is locked!
7.3 Automatic high-speed synchronisation (FP or HSS)
Various cameras support automatic FP high-speed synchronisation (see the
camera’s operating instructions). This flash mode makes it possible to use a flash
unit even with shutter speeds that are faster than the flash sync speed. Interesting
results may by achieved in this mode when, for example, a wide open aperture
(e.g., f/2.0) is used to limit the depth of field in portrait shots taken in very bright
ambient light. The flash unit supports high-speed synchronisation in TTLand M
flash modes.
M ☞
M
M
M
☞
For physical reasons, however, high-speed synchronisation significantly reduces
the number and the maximum flash range. Be sure to note, therefore, the flash
range on the display of the flash unit. High-speed synchronisation is activated
automatically if a shutter speed faster than the flash sync speed is set on the
camera, whether manually or automatically by the exposure program.
Note that in the case of high speed synchronisation the guide number of
the flash unit also depends on the shutter speed. The faster the shutter
speed, the lower the guide number!
Setting procedure
• repeatedly press the„Mode“
ባ button until„ HSS “ or „ HSS “ flashes in
the display.
The setting takes effect immediately. After about 5 seconds the display stops
flashing and the setting is saved automatically. „
HSS“ or „ HSS“ is
shown in the display. High-speed synchronisation can be deleted by repeated-
ly pressing the „Mode“ button until the „HSS“ symbol disappears.
8 Manual flash exposure correction
The auto flash exposure mode of most cameras is adjusted to a reflection factor
of 25% (the average reflection factor of flash subjects). A dark background that
absorbs much of the light or a highly reflective bright background (backlit shots,
for example) may result in, respectively, underexposure or overexposure of the
subject.
To offset these effects, the flash exposure can be adjusted manually for the shot
with a correction value. The extent of the correction depends on the contrast bet-
ween the subject and background!
In TTL flash modes, manual flash exposure correction factors of from -3 EV
(f-stops) to +3 EV (f-stops) can be adjusted on the flash unit in one-third incre-
ments.
M TTL
M TTL
☞
707 47 0065.A1-48AF-1O Inh. 17.09.2007 13:58 Uhr Seite 68