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Fitting the Modelling Lamp
Switch off and disconnect from the supply. Screw modelling lamp into ES lampholder in the centre of
the reflector. Allow lamp to cool before removing.
Note: It is recommended that a Photoflood or Halostar bulb with a maximum wattage of 275W is used.
The manufacturer will not accept liability on the use of any lamp with a greater wattage than 275W.
Flash Power Control
The flash power output is variable over two f-stops from full to 1/4 power. The power settings are
denoted in steps of 1/6 stop. The numeric divisions indicate full one stop divisions.
When switched 'ON' from either a mains or battery supply, the unit will charge. Once the unit has
charged to the desired power level, the Green READY lamp will illuminate indicating that the unit is
ready to fire.
Note: If the unit is subjected to rapid operation over extended periods, it may automatically go into an
overheat condition. In this condition, the Green READY lamp will illuminate to indicate the presence of
power, and the Red Light (overheat indicator) will also light up. If the unit does overheat the modelling
lamp will stay on and the unit will not flash. The unit will automatically resume operation once cooled
sufficiently. HINT - In an overheat condition, the unit will typically take 15 minutes to cool down. By
switching OFF and then ON again after say 5 minutes, the unit can be re-activated in order to get a
few extra shots if needed. Switching OFF the modelling lamp will help the unit to cool quicker.
Synchronisation
There are several ways to trigger the Esprit Gemini
Open Flash:
For testing or multiple flash applications the Open Flash Pushbutton can be used.
Sync Socket:
The standard quarter inch jack type socket on the rear panel of the unit may be used for direct
connection to a camera set to 'x' synchronisation. Two Esprit units may be connected together
using a 'y' connector. An Infra Red Receiver or Omnicell may also be plugged into this socket.
The socket operates at +5V and is safe for use on digital cameras.
Photocell:
The Esprit Gemini has a built in switchable photocell enabling the unit to be triggered by the flash from
any other flash unit or a small camera mounted flash gun. The photocell is mounted behind the red
transparent cover on the top of the unit. The photocell on/off switch is located on the rear control panel.
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With the modelling lamp control switch (Fig.1. 3) in the upper position, the modelling light is on HALF
power. With the modelling lamp set to the centre the modelling light will stay OFF, and with the switch
set in the lower position the modelling lamp stays on FULL power.
The modelling and flash circuitry is protected by a single 20mm fuse mounted on the rear panel. Never
replace the fuse with one of a different rating. As the fuse may blow when the modelling lamp fails
always check the fuse when replacing the bulb. A spare fuse is supplied in the fuse holder. Always
switch OFF and disconnect the Esprit Gemini unit from the power supply before changing the bulb or
fuse.
Set the Sounder Switch to 'ON' (down position) to give a short beep when the unit comes to ready,
to provide an audible 'Ready' confirmation. The sounder switch is located on the rear control panel
(page 4).
A range of reflectors is available for the Esprit Gemini unit. To fit, slide the neck of the reflector over the
front of the unit. Align the three pegs on the reflector with the three slots in the retaining ring. Press down
and turn clockwise to lock.
To remove reflector, pull back Latch Knob (page 4), turn the reflector fully anti-clockwise and withdraw.
If an umbrella is to be used a 'Wide Angle Reflector' should be fitted and the umbrella fitted through the
mounting hole in the mounting bracket and locked in position with the knurled screw.
Note: Take care when fitting / removing reflectors not to damage the flashtube assembly. The flashtube is
very delicate, avoid unnecessary handling of the glass tube. Always switch off and disconnect from the
power supply before fitting and changing reflectors.
Warning High Voltage!
Do not touch the flashtube assembly for thirty minutes after disconnecting from supply.
Modelling Lamp Control
Fuse
Audible Ready Beep
Fitting / Removing Reflectors
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