19.
Shooting with Light Behind Your Subject (and Other Unusual
light-
Exposure
Correction
When
there is light, such
as
the sun
or
a
bright
window,
behind your subject, the AE-1
PROGRAM's meter may
be
overinfluenced by
that
light and your subject will come
out
too
dark. You can correct the exposure by
(1)
press-
ing the
AE
lock
switch;
(2)
adjusting the ISO
I'
ASA;
or
(3)
manually setting both the shutter
speed and aperture
(canceling
AE
photography).
54
I.
AE
Lock
Switch
For example, when shooting a backlit subject:
1)
Approach your subject and, looking in the
viewfinder, center your subject so that it
takes up about one-third
of
the viewing area.
2)
While
pressing the shutter button halfway,
press the
AE
lock switch.
3)
Keeping the shutter button pressed halfway,
step back, compose the picture
as
you like,
and shoot. Your subject will
be
correctly
exposed.
You
do
not
have
to
continue
pressing
the
AE
lock
switch;
the
exposure
value
is
retained
as
long
as
you
press
the
shutter
button
halfway.