Canon 577 G - Manual (Page 22)

SHOOTING
Once all preparations detailed on the
preceding pages have been made,
make sure the subject is in focus and
that the 577G’s pilot lamp is glowing.
Then press the shutter button to take
the picture. If the auto check lamp
glows immediately afterwards, it
means that you were close enough to
the subject for correct exposure.
* In delayed flash photography with
the camera’s self-timer, do not
press the shutter button to set the
timer until the pilot lamp glows.
* When the shooting distance is less
than one meter, the difference be­
tween the optical axes of the lens
and the flash may result in uneven
lighting.
* Since it is possible for viewfinder
information in the New F-1, AE-1,
AL-1, or AV-1 to be the same in
flash photography as in normal
AE photography, it is advisable to
check that the pilot lamp is glow­
ing before shooting.
♦ You can continue flash photo­
graphy if the pilot lamp is still
glowing after the shutter is re­
leased. If the pilot lamp does go
out after a flash shot, you can
take a shot in the normal AE
mode while waiting for it to glow
again. (This, however, does not
apply when the shutter speed is
set to “B” or when the camera is
not set for AE photography.)
Make sure that the shutter speed
or aperture which will be used for
normal AE photography will give
correct exposure, too.
♦ When the flash is no longer
necessary, be sure to turn off
the Transistor Pack G’s power
switch to prevent battery drain.
With the power switch off, it is
possible to shoot normally without
detaching the flash or the sensor.
♦ While performing normal AE
photography as the flash recycles,
there is a possibility that, while the
shutter curtain is open, the 577G’s
pilot lamp will glow and the flash
may fire. In this case, correct ex­
posure cannot be guaranteed.
PROBLEM BACKGROUNDS
Certain types of background may
lead to incorrect exposure. A very
small subject against a very dark or
distant background may turn out
overexposed. On the other hand, if
the surroundings are bright white
with strong reflections, the subject
may be underexposed.
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