Esprit Digital 750 Operating Instructions
Esprit Digital 750 Operating Instructions
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MODELLING LAMP CONTROLS & OPERATION
Four modelling lamp modes are available. Each press of the LAMP FUNCTION button
selects the next mode in sequence. The associated LED shows the mode selected as
follows:
Mode
Description
OFF
Lamp switched off, no LED’s lit.
PROP
Proportional - Lamp brightness linked directly to the current flash power
setting.
IND
Independent - Lamp brightness adjustable independently from the flash
setting.
100%
Lamp at full brightness.
‘L’ - LAMP Display Mode
When the ‘LAMP FUNCTION’ is switched to ‘INDEPENDENT’ mode the display and controls
are automatically set to the ‘LAMP’ mode to allow adjustment. An ‘L’ before the displayed
value indicates this mode:
Display
Range X.X
Description
LX.X
5.0 to 10
Display Lamp power value. Use ‘UP’ or ‘DOWN’ to adjust
If no adjustment is attempted within 4 seconds then the display will revert to the default
‘FLASH’ mode. If the value needs to be reviewed or adjusted later then use the ‘FUNC’
button to select the ‘LAMP’ mode.
The LAMP power is adjustable over a 5 f-stop range (6 f-stops) in 1/10 f-stop increments
using the ‘UP’ and ‘DOWN’ push buttons. Adjustment and display of the ‘LAMP’ power in
‘IND’ mode is identical to that of the ‘FLASH’ power.
TRIGGER SOURCES
TEST/OPEN FLASH RELEASE Button
Press the TEST button to trigger the flash. The unit will only flash if the unit is charged and
the ‘READY’ light is either lit or flashing.
EXTERNAL SYNCHRONISATION Socket
Use the SYNC. jack socket and SYNC. Cord to connect the unit to a camera or other trigger
source. Remote triggering devices such as an Omni-cell may be plugged directly into the
SYNC. jack socket or via an extension lead. The unit will only trigger via the SYNC. Socket if
fully charged and the ‘READY’ LED is lit.
REMOTE PHOTO-CELL Button
Switch the built-in photocell on or off using the ‘CELL’ button. The photocell is on when the
associated LED is lit. The unit will flash when a flash is sensed from another unit or IR
Remote Trigger.
NOTE: The photocell is extremely sensitive but some experimentation with positioning may
be necessary to ensure a reliable trigger, particularly if the cell is hidden from the source.
Avoid directly illuminating the photocell from a continuous light source since this can prevent
correct operation or in some circumstances result in spurious triggering.
AUXILIARY FUNCTIONS
SOUNDER Button
Switch the sounder on or off using the ‘’SOUND’ button. The sounder is on when the
associated LED is lit. The sounder will give a short beep whenever active keys are pressed.
Longer beeps or repetitive beeps provide warnings, the meaning of which is given in the
appropriate section.
INTERMITTENT Button
This feature uses the Modelling Lamp to indicate that the unit has flashed correctly and that it
has recharged to ‘READY’ and is in addition to the normal indication. Press the ‘INT’ button
to switch this function on or off. The associated LED is lit when ‘INT’ is on. Depending on
the ‘OPTION’ setting this mode may be unavailable when the Lamp is ‘OFF’. When this is
the case, and the sounder is on, a long warning beep will be given when the button is
pressed to indicate that it cannot be selected.
The user may select one of two indicating modes for this function by means of the
‘OPTIONS’ sub-menu. See ‘OPTIONS’ for a description of how to access this mode.
The default setting is ‘
In.0
’. The ‘INTERMITTENT’ function in this mode is only available
when the lamp is switched ON (
PROP, IND or 100%
). When the unit is flashed the
Modelling Lamp will extinguish while the unit recharges and will light again when the unit
reaches ‘READY’.
The optional mode is ‘
In.1
’. The ‘INTERMITTENT’ function in this mode is available whether
the lamp is on or off. After the unit is flashed and the unit recharges to ‘READY’ the
Modelling Lamp will intensify to full brightness and then dim before returning to the previous
setting (or to OFF). The exact effect will depend on the actual lamp setting
If the unit fails to flash for any reason then the chosen sequence will not be followed. Note
that the Modelling Lamp indication is relative slow compared to the normal LED and Sounder
indication which means that the unit will actually be ‘READY’ and may, if required, be flashed
before the sequence is complete.
AUTO-DUMP Operation
‘AUTO-DUMP’ automatically discharges the capacitors when the power is reduced. The
‘READY’ indicator flashes while the unit is dumping. The user may select one of two DUMP
methods by means of the ‘OPTIONS’ sub-menu. See ‘OPTIONS’ for a description of how to
access this mode.
The default factory setting is ‘
Fd.0
’. In this mode the unit resistively dumps excess energy
whenever the flash setting is reduced. This is a relatively slow method and can take several
seconds to reach the required value if the change is large. Use the ‘TEST’ button to
manually flash dump the excess energy quickly if required.
The optional mode is ‘
Fd.1
’. The unit attempts to automatically reduce the power to the
desired setting in the shortest possible time. It does this by determining how long it would
take to simply resistively dump the excess stored energy compared with flash dumping and
then having to re-charge to the new setting.
To prevent multiple flashes occurring while the setting is being changed the unit waits until
the ‘DOWN’ button is released before deciding whether to flash or not. The result is that
small or slow decreases in the flash setting are unlikely to cause the unit to flash.
The unit is designed to automatically flash, if possible, when turned off. The resistive dump
will continue to reduce any remaining energy while the unit is off. This safety feature cannot
be disabled.
NOTE: The unit may decide to flash if +B is canceled when both the overall Flash power and
Bracket itself are set to high values.
