Olympus AZ-4 Zoom - Manual (Page 53)

Q: How should I take advantage of all of the
capacities of this excellent flash?
A: We recommend that you use the Flash Auto
mode (p. 34) under normal circumstances.
It will flash when conditions are dark enough
to require extra lighting, and the exposure is
automatically set at 1/100 sec. to avoid
unnecessary flutter. There is no need to worry
about lighting and the camera is easy to use.
The Fill-in Flash mode is to be used under
conditions of daylight synchro or slow
synchro photography or other special
conditions to which the Flash Auto mode
cannot respond.
Q: How should I use the Fill-in Flash mode for
daylight synchro or slow synchro
photography?
A: The Fill-in Flash mode causes the flash to fire
regardless of the available light, as well as
conditions of exposure control shown in the
exposure program line graph on p. 45. (Note
that the shutter speed will be slower than the
normal 1/100 sec.) With regard to lighting
conditions, photography will be either daylight
synchro or slow synchro photography. Please
see the examples on p. 37 for your reference.
daylight synchro: When photographing a
subject against a light source, the Flash Auto
mode will not activate and the subject will be
dark due to the affects of the backlighting in
his surroundings. By using the Fill-in Flash
mode, the flash will fire and the subject will
be well-lit for an attractive picture.
slow synchro: Often, when photographing at
night, if the subject is too far away from the
camera the flash will not suffice. Yet if you
use the Fill-in Flash mode, the shutter speed is
lengthened and the flash will fire allowing for 52
the possibility of photographing both the
subject and the background. Since the
exposure time is longer than usual, caution is
required with moving subjects. It helps to use
a tripod to avoid camera shake while using
this mode.