Canon EF300mm F2.8L IS USM Instructions Manual page 9

6. Focus Preset
If a particular focusing position is stored in the lens's memory, the focus can be set instantly to the
stored position, even when pictures are being taken of other subjects. This feature can be used in
both AF and MF focus modes.
< Storing a Focus Position >
1
STABILIZER
MODE
FOCUS PRESET
SET
Set the focus preset switch
to or .
ENG-8
2
Press the shutter button
halfway and set the focus to
the position you want to
store in the lens's memory.
1
STABILIZER
MODE
FOCUS PRESET
SET
Press the focus preset
button. The focusing position
is now stored in the memory.
If the focus preset switch is
set to , the electronic tone,
"pip" will sound.
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