Pentax AF 540 FGZ II 操作指南

This flash unit has the following sync modes. Select the mode

best suited for the subject.
Leading Curtain Sync Mode

This is the most commonly used sync mode. In this mode, the

flash is discharged 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 31 for

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 31 for 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 32 for 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 to optimize the shadow of the subject. 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 34 for this sync mode.

Leading Curtain Sync Mode

Refer to page 31 for the features and conditions of use of this

sync mode.

Turn on the power switch (ON).

Press the Sync button (SYNC) to switch to leading curtain

sync mode (

Confirm that the subject is within the effective flash range

and the Ready lamp is lit. Then take a picture.

Trailing Curtain Sync Mode

Refer to page 31 for the features and conditions of use of this

sync mode.

Turn on the power switch (ON).

Press the Sync button (SYNC) to switch to trailing curtain

sync mode (

Confirm that the subject is within the effective flash range

and the Ready lamp is lit. Then take a picture.

Using the Sync Modes

AF360FZ_540FGZ.book Page 31 Friday, December 20, 2013 6:11 PM