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ADVANCED FUNCTIONS
■ Wireless Mode
With the SEF-54PZF, you can take photographs
with the flash unit separated from the camera wire-
lessly in P-TTL mode. Combine the flash unit with
the built-in flash unit of the camera or another
SEF-54PZF attached to the camera.
●The SEF-36PZF can be used interchangeably
with SEF-54PZF flash units for wireless
mode photography.
● The SLAVE mode must be set to the SL1.
Notes on Wireless Flash Control (P-TTL photography)
●Control Flash and Main Flash
The purpose of the control flash of the wireless
mode is to send information to the other flash
unit before taking a picture. The main flash fires
at the actual time a picture is taken in the same
manner as traditionally done.
●Keep the distance from the built-in flash unit and
SEF-54PZF to the subject within 4 meters.
When using the SEF-54PZF in wireless mode, the
following information is transferred between the
flash units attached to the camera and separated
from the camera, before the flash units are fired.
1) Shutter release button is fully pressed.
2) The flash attached to the camera emits a
small control flash (relays the flash mode of
the camera).
3) The external SEF-54PZF emits a pre-flash
(verifies the state of the subject).
4) The flash attached to the camera emits a
small control flash (relays the flash output
amount to the external SEF-54PZF).
●The flash attached to the camera will emit a
preflash once more after this to relay the
flash duration time when
Sync Mode) is set.
5) The external SEF-54PZF fires the main flash
(where both flash units fire main flashes, refer
to page 42).
(High Speed
37
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