33
32
˚
Single Servo AF
You lightly press shutter release button, the lens starts
adjusting for focus. Because the priority is on correct focus, the
shutter locks until the stationary subject is in focus (with
u
) or
until the moving subjects expected to be in focus (with
y
).
After focus is achieved with a stationary subject, the focus
remains locked for as long as shutter release button is lightly
pressed. This feature is useful, especially when recomposing
the picture with the mains subject off centre. However, if the
camera-to-subject distance changes, you have to refocus.
With a stationary subject:
Lightly press shutter release button.
When the subject is in focus, the lens stops moving, the in-
focus indication
u
appears in the viewfinder, and focus is
locked. If the subject moves, remove your finger from shutter
release button, then lightly press it again to restart autofocus.
Stationary subject is in
focus
If
†
stays in the viewfinder
Subject is located closer than the closest focusing distance
of the lens. Move away from subject and refocus.
If
y
blinks in the viewfinder:
Autofocus is not possible (see page 38) and shutter locks.
With a moving subject:
Lightly press shutter release button and Focus Tracking is
automatically activated. Confirm
y
appears in the viewfinder,
then fully depress shutter release button.
Focus Tracking remains activated as long as you keep lightly
pressing shutter release button. If subject stops and
u
appears, focus is locked. If subject moves again, remove your
finger from shutter release button and lightly press it again to
start autofocus with Focus Tracking.
Moving subject is
expected to be in focus
• Single Servo AF is convenient for off-centre subjects.
See pages 36 to 37.
• After shooting with the film advance mode selector set
at
V
or
C
, you do not have to remove your finger
from shutter release button for the next shot. Slightly lift
your finger from the button (but maintaining the button
in the half-depressed position) then fully depress it to
release the shutter again. The focus setting will have
remained unchanged from the prior setting. In the
Single Servo AF mode, focus remains locked even after
shutter is released, unless you remove your finger from
shutter release button.
With film advance mode set at
Z
or
X
, camera
detects focus every time the shutter is released.
• With a moving subject, depending on subject status
and lens in use, slightly out-of-focus pictures may
result.
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