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Autofocus
The
F4
provides two autofocus modes - Single Servo
Autofocus
(S)
and Continuous Servo Autofocus (C).
Single Servo Autofocus (S)
In
Single Servo Autofocus mode
(S)
, the shutter cannot be re-
leased until the subject
is
in
focus; once the subject
is
in
focus,
the focus stays locked for
as
long
as
the shutter release button
is
lightly pressed.
Continuous Servo Autofocus (C)
The camera continues focusing for as long
as
you keep the
shutter release button lightly pressed. The shutter
re
lease but-
ton can be fully depressed anytime, regardless of focus status,
except when film advance mode selector
is
set to
CL.
Autofocus Operation
1. Set focus mode selector
to
either S or C.
11
the lens
in
use has an A-M switch, set switch
to
A.
2. Position viewfinder focus brackets on main subject.
35