Owner's Manual

Switching the
Flash
Coverage
The flash
head can be extended or retracted
manually
to match the
lens
focal length.
As the focal length
of
EF
lenses
and EF-S
lenses
differs,
extend or retract the
flash
head
while referring to the table below
(the
flash head position
in
relationship to the lens focal length).
Flash
head position
Normal
position
Extended
position
Guide number 24/79 (ISO 100
in
m/ft.) Guide number 32/105
(ISO 100
in
m/ft.)
Flash
Head
Position
and Lens
Focal
Length
24mm or
longer 50mm
or longer
• When using an EF-S lens with a focal
length
of
32mm or longer or an
EF
lens with a focal length
of
50mm or
longer, extend the flash head
for
greater
flash output and longer flash
range.
• When the flash head is extended, the
<TELE>
lamp on the Speedlite lights
or blinks.
• When the
<TELE>
lamp blinks, retract
the
flash
head to its normal position.
If
you take a picture while the
<TELE>
lamp is blinking, the periphery
of
the
·
picture may appear dark.
19
I