Canon Speedlite 420EX - Manual (Page 29)

Second-Curtain Synchronization
The EOS 30/ELAN 7E has a Custom Function enabling 2nd-curtain
synchronization.
Normally, 1st-curtain synchronization is set so that the flash is fired when
the shutter curtains fully open. With 2nd-curtain synchronization, the flash
is fired right before the shutter curtains close. When this is combined with a
slow shutter speed, you can capture the light trail following the moving
subject. This looks more natural.
• To set the camera's Custom Function, refer to the camera's Instructions.
The image has been removed due
to copyright restrictions
Taken with 2nd* *curtain synchronization.
The image has been removed due
to copyright restrictions
Taken with 1sl-curtain synchronization.
1
1
Set the Custom Function for 2nd-
curtain synchronization.
• With the EOS 30/ELAN 7E, set C.Fn-6-1.
Set the picture-taking mode with
the camera.
• <Tv > or <M > is recommended.
Take the picture.
• Focus the subject, check that the
<'<> icon is lit in the viewfinder, then
take the picture.
Q • Setting <buLb> for the shutter speed makes 2nd-curtain synchronization easier.
• Second-curtain synchronization cannot be used in the <D> (Full Auto) or in a
Programmed Image Control mode.
29