Leica R9 Instructions Manual page 177

Setting on the flash unit (with SCA 3501):
Camera TTL-automatic
setting
P At a fixed aperture of 5.6, the ambient
(in darkness) brightness is taken into account by sel-
ecting an appropriate shutter speed
value (up to the "free hand limit" of the
focal length being used = 1/focal length
[with ROM lenses, see p. 164]). The flash
is TTL controlled as the main light.
P The ambient brightness is taken into
account by selecting appropriate apertu-
(in regular
light re and shutter speed values (up to the
conditions) "free hand limit" of the focal length
being used = 1/focal length [with ROM
lenses, see p.164]). First, only the aper-
ture is enlarged. As of the full stop, slow-
er shutter speeds are selected. The flash
is only used as a fill-in with an auto-
matically reduced performance (-1 2/3
EV). Alternatively, manual flash exposure
compensation (+3 1/3 EV) is possible.
P
Since a flash would cause overexposure
(in extreme
with 1/250s in this light, the flash is
brightness)
not released. The camera works with the
regular automatic program mode.
*) The flash synch time 1/250 s is selected as the shortest exposure time.
Computer automatic
The set automatic operating
mode P carries out a regular
*)
exposure with the available
light.
For this reason, the
should be reduced via flash ex-
posure compensation.
171
Manual flash with
fixed performance
The set automatic operating
mode P carries out a regular
*)
exposure with the available
light.
flash The full flash performance is
added.