Second-curtain sync flash photography – Canon 420 EZ User Manual
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8. Second-Curtain Sync Flash Photography
With focal plane shutters, flash synchroniza
tion is made when the first curtain is fully
open. With the Speedlite 420EZ, it is also
possible to make the flash synchronization
just before the second curtain starts run
ning. This is called “second-curtain sync”
and is best when a slower shutter speed is
used. (The shutter-priority AE mode is
recommended.)
When second curtain sync is used with a
moving subject and a slow shutter speed,
the light from the flash clearly illuminates
the subject for a sharp image but creates a
trailing image from ambient light for a flow
ing effect.
To set:
Press and release the sync position button.
•When the “tcW’ mark is displayed, the
second curtain sync is made
automatically.
•When no mark is displayed, the first
curtain sync is made.
•The second-curtain sync cannot be us
ed with the stroboscopic flash mode.
Second-Curtain Sync Flash Photography
First-Curtain Sync Flash Photography
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