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Focus Preset Button; Focus Preset Switch - Canon EF 200-400mm f/4L IS USM Extender 1.4X Instruction

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5. Focus Preset
By presetting any focusing distance, you can instantly focus at that point even while you are
shooting a different subject. This function operates in any of the AF, PF, and MF modes.
< How to Set >
Set the focus preset switch
to ON or
.
Press the shutter button
halfway to focus the
distance you want to
preset.
Press the focus preset
button.
The focused distance will be
preset.
If the focus preset switch was
set to
, the beeper will
sound once.
ENG-8

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