b Autofocus can be manually overridden by rotating the focus ring
while pressing the shutter release button halfway, pressing the
AF-ON button on the camera or pressing a focus operation button
(with focus operation set to AF-ON) on the lens.
c Pressing the shutter release button halfway, pressing the AF-ON
button on the camera again or pressing a focus operation button
on the lens again will cancel manual override and return the lens to
autofocus mode.
To limit the range of autofocus
This function is only available with autofocus.
FULL:
∞–5m:
Focus operation selection switch and focus operation
button (See page 20 for compatible cameras.)
Use the focus operation selection switch to choose a function of the
focus operation buttons.
Position of focus
operation selection
switch
AF-L
MEMORY RECALL
AF-ON
• Press one of four focus operation buttons to activate
each function.
Focus lock (AF-L)
This function is only compatible with autofocus.
a Set the focus mode switch to A/M or M/A.
b Set the focus operation selection switch to AF-L.
c During autofocus mode, focus can be locked by pressing one of the
focus operation buttons.
If the subject is sometimes closer than 5 m
(16.4 ft), set the switch to FULL.
If the subject is always 5 m (16.4 ft) or more
away, set the switch to
focusing time.
∞
–5m to reduce
Focus operation button
function
Focus lock
Memory recall
AF start (AF-ON) on the
lens
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