Canon Speedlite 420EX Instruction Manual - Page 25

Speed, Flash

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High-Speed Sync (FP Flash) When the flash mode is set to high-speed sync (FP flash), the flash can synchronize with shutter speeds faster than the camera's fastest sync speed. When high-speed sync is set, the icon lights in the viewfinder. • High-speed sync can be used in the .

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High
-Speed
Sync
(FP
Flash)
When
the
flash
mode
is
set
to
high-speed
sync
(FP
flash),
the
flash
can
synchronize
with
shutter
speeds
faster
than
the
camera's
fastest
sync
speed.
When
high-speed
sync
is
set,
the
<iii>
icon
lights
in
the
viewfinder.
•
High-speed
sync
can
be
used
in
the
<P>.
<Tv
›,
<Av
>.
and
<M>
modes.
•
High-speed
sync
is
effective
when
you
want
to:
(1)
Blur
the
background
for
a
daylight
portrait.
(2)
Create
a
catchlight
in
the
subject's
eyes.
(3)
Soften
harsh
shadows
on
the
subject's
face.
The
image
has
been
removed
due
to
copyright
restrictions
With
FP
flash.
The
image
has
been
removed
due
to
copyright
restrictions
With
normal
flash.
50
70
105
•-i
r
-
H
LCD
OFF
Set
the
desired
picture
-taking
mode.
2
Set
the
high-speed
sync
switch
to
25