Canon Speedlite 420EX Instruction Manual - Page 36

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Flash in Other Picture-Taking Modes Slow-Speed Sync for Dark Backgrounds By using a slow sync speed with flash, you can correctly expose both the subject and a dark background. For automatic slow-speed sync, set the camera to the mode. When using slow-speed sync, use a tripod to prevent camera shake. The image was removed due to copyright restrictions The image was removed due to copyright restrictions Flash with slow-speed sync. Flash in Full Auto mode. • To cancel automatic slow-speed sync, set the camera to the mode (-) page 38) and set the desired shutter speed and aperture. TTL autoflash will then automatically control the flash exposure. • If you use an EOS camera mounted with an EF 135mm f/2.8 Soft Focus lens during hand-held flash photography, note the following: 1) To obtain a better soft-focus effect, set the aperture manually toward the maximum opening. 2) Set the shutter speed as slow as possible while preventing camera shake. 3) Check that the flash is ready, then take the picture. 36

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Flash
in
Other
Picture
-Taking
Modes
Slow
-Speed
Sync
for
Dark
Backgrounds
By
using
a
slow
sync
speed
with
flash,
you
can
correctly
expose
both
the
subject
and
a
dark
background.
For
automatic
slow
-speed
sync,
set
the
camera
to
the
<Av
>
mode.
When
using
slow
-speed
sync,
use
a
tripod
to
prevent
camera
shake.
The
image
was
removed
due
to
copyright
restrictions
Flash
with
slow
-speed
sync.
The
image
was
removed
due
to
copyright
restrictions
Flash
in
Full
Auto
mode.
•
To
cancel
automatic
slow
-speed
sync,
set
the
camera
to
the
<M>
mode
(—)
page
38)
and
set
the
desired
shutter
speed
and
aperture.
TTL
autoflash
will
then
automatically
control
the
flash
exposure.
•
If
you
use
an
EOS
camera
mounted
with
an
EF
135mm
f/2.8
Soft
Focus
lens
during
hand-held
flash
photography,
note
the
following:
1)
To
obtain
a
better
soft
-focus
effect,
set
the
aperture
manually
toward
the
maximum
opening.
2)
Set
the
shutter
speed
as
slow
as
possible
while
preventing
camera
shake.
3)
Check
that
the
flash
is
ready,
then
take
the
picture.
36