Nikon AF-S NIKKOR 200-400mm f/4G ED VR II Manuel D'utilisation page 23

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: If the subject is sometimes closer than 6 m
∞–6m: If the subject is always 6 m (19.7 ft) or more
■ Focus operation selection switch and focus operation
button (See p. 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.
• The focus operation button positions can be changed
to suit individual user preferences. For more details
on this, contact your nearest Nikon service center or
representative office.
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.
• Focus remains locked while a focus operation button is pressed and
held down.
(19.7 ft), set the switch to FULL.
away, set the switch to ∞– 6m to reduce
focusing time.
Focus operation button
function
Focus lock
Memory recall
AF start (AF-ON) on the
lens
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