Switching The Focusing Range; Full-Time Manual Focusing - Canon EF100-400mm F4.5-5.6L IS USM Instructions Manual

3. Switching the
Focusing Range
A range switch lets you select a focusing range
of either 1.8 m/5.9 ft. to infinity or 6.5 m/21.3 ft.
to infinity, depending on shooting conditions.
This setting can reduce the actual autofocusing
time.
●
Before switching the focusing range, turn the
focusing ring to select a focusing distance
somewhere within the desired range.
●
If you do not set the lens to a focusing distance that
is within the selected focusing range, autofocusing
may stop when it reaches the range boundary. This
is not a fault. If it happens, press the shutter button
halfway down again.
4. Full-Time Manual
Focusing
The focusing ring always works, regardless of
the focus mode.
●
After autofocusing in ONE SHOT AF mode, focus
manually by pressing the shutter button halfway and
turning the focusing ring.
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