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Using the Sync Mode
The AF540FGZ has the following sync modes. Select
the mode best suited for the subject.
Before photographing, confirm the following.
1. Whether your camera supports the desired sync
mode.
➝ Cameras that Support Each Sync Mode
(page 62)
2. Whether you can use the desired sync mode with
the combination of your camera and the flash
mode you have set.
➝Functions Related to Each Flash Mode
(page 64 - 71)
3. Restrictions for the use of each sync mode.
➝ Sync Mode Restrictions (page 72 - 76)
Leading Curtain Sync Mode
This is the most commonly used sync mode. In this
mode, the flash discharges at the instant the first
shutter curtain completes its travel. You can use this
mode with the shutter speed set to the X-sync speed or
slower. Refer to page 33 for instructions on how to use
this sync mode.
Trailing Curtain Sync Mode
In this sync mode, the flash is discharged at the instant
the second curtain begins its travel. This mode will
freeze the subject with a blur appearing after the
subject under a slow shutter speed condition. Refer to
page 33 for instructions on how to use this sync mode.
High-Speed Sync Mode
This sync mode will enable flash synchronization with
shutter speeds faster than the X-sync speed. Since
there is no sync speed limitation, high-speed sync is
effective for fill-flash in daylight. Refer to page 34 for
instructions on how to use this sync mode.
Contrast Control Sync Mode
This sync mode enables you to photograph with
multiple flash units, utilizing the difference of the light
intensity of each flash unit. The ratio of flash light
intensity between the flash unit set to this sync mode
and the other flash unit is 1:2. Refer to page 36 for
instructions on how to use this sync mode.