ESPRIT GEMINI INSTRUCTIONS BWL-0353/1 (04/05)
BOWENS INTERNATIONAL LIMITED
355 Old Road
Clacton on Sea
Essex CO15 3RH UK
Tel:
Fax:
+44 (0)1255 422807
+44 (0)1255 436342
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Introduction
Dear Valued Customer,
Thank you for choosing the Bowens Esprit Gemini professional flash system.
Unit
Accurate, ergonomic, powerful and simple to use, the Esprit Gemini was designed by working
closely with photographers to develop a flash that meets the standards demanded in professional
studios today.
Stored Energy (max)
Sync Voltage
All ‘S-Type’ accessories from the Bowens range can be used with the Esprit Gemini. For details of
all related products, please contact your local distributor, a list of which can be found at
Flash Colour Temperature
Circuit Protection
Supply Voltage Range 230V
(117V)
In order to obtain the full benefit from your purchase, please take a few moments to familiarise
yourself with this user manual.
Voltage Stabilisation
Thank you.
Bowens International Ltd.
Guide Number
(Full power, 50° Keylite, ISO 100)
Typical Recycle Time
Full Power, 230V, 50Hz (117V 60Hz)
Safety Notes
Modelling Power Control
Flash Duration (t=0.5)
(Full power)
DO NOT:
• Use in an environment where moisture or flammable vapor is likely to come in contact with the unit.
• Plug the Gemini Esprit into a mains supply and a battery at the same time.
• Restrict air vents while in use.
Flash Power Control
Modelling Lamp
• Use a unit with damaged housing, moldings, flash tube or modelling lamp.
If the unit is dropped or damaged in any way, always have it checked out before using.
• Operate the unit without a safe grounded (earthed) AC supply.
Ready Indication
User Replaceable Flash Tube
DO:
Photocell
• Switch power off and disconnect from the supply before changing modelling bulb or flash tube.
• Disconnect the supply before changing the fuse. Never replace with a fuse of a different rating. A
spare fuse is fitted in the fuse holder.
Audio Ready Signal
Recommended Modelling
Lamps
• Excercise care when handling equipment that has been in use. The reflector and front end of the
unit can become Very Hot.
Weight
• Avoid placing cables where they can be tripped over. Protect from heavy, sharp or hot objects,
which may cause damage and replace damaged cables immediately.
• Due to the high voltage / high energy used in Esprit Gemini Units, all servicing must be carried out
by an authorised Service Centre.
Dimensions (l x w x h)
• Remove the power cord by gripping the plug. NEVER pull the cord.
• Ensure that any extension cord used has a suitable current rating to prevent overheating and
never use coiled extension cords.
• ALWAYS remove the flash head covers before using.
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Control Panel Guide
Accessories
Rear Control Panel
Carry handle
Photocell
On/Off
Mains /
Battery Power
Select
120° Wide-Angle
50° Keylite
High Performance
75° Softlite
Reflector. BW1885
Reflector. BW1885
Reflector. BW1885
Reflector. BW1885
Sounder
On/Off
Mains Inlet
Fuse
(and Spare
Fuse)
Modelling
Lamp Control
Switch
40° Sunlite
65° Maxilite
Grid Reflector.
Backlite Reflector.
Battery Power
Inlet
Reflector. BW1885
Reflector. BW1885
BW1885
BW1885
Sync Socket
Pulsar Radio Trigger System
Side Control Panel
Photocell
With the Esprit Gemini you are free from mains power
cables. With the Pulsar Radio Trigger system you can
free yourself from sync cables too!
This multifunctional device can be used to trigger flash
units, film and digital cameras and light meters up to
100m away.
Latch Release
Because Pulsar is a radio transmittor, rather than IR,
it allows for triggering around corners or through walls
and is not affected by high ambient light situations.
Choose from four individual channesl and six studio
selectors, each providing a unique ID for different flash
devices or combine them to trigger all equipment
within a given setup or studio.
Because of its low-voltage operation, it is perfect for
digital cameras. Each unit can be used as either a
transmitter or receiver and operates off of two AAA
batteries.
Modelling Lamp
Control
Flash Power
Control
‘Ready’
Indicator
Test /
Open Flash
Pulsar (BW-5150)
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Flash Tube Replacement
Connecting & Using the Esprit Gemini
Ensure that the unit is switched off and disconnected
from the mains supply and then wait thirty minutes
before touching / removing flashtube.
The Esprit Gemini unit may be operated either on a mains supply or with a Bowens battery source such as
the Bowens Travel-Pak.
Remove the protective cap and unwind the twisted
Trigger wire from the flashtube support.
Gently pull the flashtube assembly out of the unit.
!!! WARNING HIGH VOLTAGE !!!
NEVER CONNECT THE ESPRIT GEMINI TO BOTH A MAINS
SUPPLY AND A BATTERY SUPPLY AT THE SAME TIME.
THIS APPLIANCE MUST BE EARTHED WHEN USED WITH MAINS.
DISCONNECT THE MAINS LEAD, WHEN CHANGING MODELLING
LAMPS & FLASH TUBES.
To replace the assembly, hold the flashtube as shown
and taking care to support both legs of the tube, gently
but firmly, push the flashtube into position, and wind the
Trigger wire around the flashtube support.
Always replace with the correct flashtube assembly,
BW-2032 UV coated.
BW-2030 Clear (BW-2980 for 750+).
For mains operation, the mains switch (page 4) should be in the upper position.
For battery operation the switch should be in the lower position.
The centre position is OFF.
NOTE: When operated from a battery source, the modelling functions are not available.
Travel-Pak
Ensure the power source is Off.
Connect the unit using the appropriate cabling.
If using a battery source, ensure the connector locks are fully tightened.
Switch the power source on, then switch on the Esprit Gemini.
The unit will charge and indicate it is ready for use by illuminating the Green READY light.
Press the TEST button to check the unit fires.
The Esprit Gemini is great in the studio, but what
if you need to work on location?
Thanks to this handy battery pack, your Bowens
Esprit Gemini Monoblocs can leave the studio to
go on location anytime, anywhere!
Mounting
Able to power two monoblocs simultaneously with
a total power of up to 1500w/s, the Travel-Pak is
capable of bringing a 500Ws unit to full charge as
fast as 4.5 seconds, and can offer in excess of
200 flashes on a single charge.
Mount the Esprit Gemini unit on selected support system.
The mounting bush on the 'L' bracket allows for two possible ways of mounting to the stand / support (Fig.3).
Method B may be found useful if the light is required to point down.
With a fast/slow charge option to prolong battery
life as well as a stylish carry bag offering
protection from the elements and up to 3 inches of
water, no location photographer should be without
this unique power pack.
Dimensions - 180(l) x 120(w) x 175(h)mm
Weight - 4.1kg
Figure 3
Travel-Pak (BW-7630)
Also available for the Bowens Travel-Pak:
BW-7635 Travel-Pak Boost Battery.
BW-7632 Travel-Pak to Gemini Spare Cable.
BW-1227 Bowens Universal 2Amp SLA Charger.
A
B
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Fitting the Modelling Lamp
Modelling Lamp Control
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.
With the modelling lamp control switch (Fig.1. 3) in the upper position the modelling light is OFF. With the
modelling light set to centre the modelling light will go out when the unit is flashed and come back on when
the unit comes to ready. This enables the photographer to see from the camera position that all Esprit units
in use have fired. With the switch set in the lower position the modelling lamp stays on all the time. The
modelling light may be varied in ratio with the flash power output by aligning the modelling Knob with that
of the flash control (see page 4).
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
Fuse
The flash power output is variable over five f-stops from full to 1/32 power. The maximum power available
depends upon the model (See specification table) and is denoted by the number 6 on the control panel.
The power settings are denoted in steps of 1/3 stop. The numeric divisions indicate full one stop divisions.
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.
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, while the charging and modelling functions are disabled in order to allow the unit to cool. The unit
will automatically resume operation once cooled sufficiently.
Audible Ready Beep
Set the Sounder Switch to 'ON' 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).
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.
Synchronisation
Fitting / Removing Reflectors
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.
There are several ways to trigger the Esprit Gemini
Open Flash:
For testing or multiple flash applications the Open Flash Pushbutton can be used.
To remove reflector, pull back Latch Knob (page 4), turn the reflector fully anti-clockwise and withdraw.
Sync Socket:
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.
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.
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
mains supply before fitting and changing reflectors.
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.
Warning High Voltage!
Do not touch the flashtube assembly for thirty minutes after disconnecting from supply.
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