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